Datasheet> 器件分类 > 无源元件> 电阻器> 99A2A-B24-E12/R54

文档预览

99A2A-B24-E12/R54: 产品描述Potentiometer, Conductive Plastic, 0.5W, 2500ohm, 10% +/-Tol, -1000,1000ppm/Cel, 6398,; 产品类别无源元件电阻器; 文件大小340KB，共7页; 制造商Bourns; 官网地址http://www.bourns.com

下载文档详细参数全文预览

99A2A-B24-E12/R54概述

Potentiometer, Conductive Plastic, 0.5W, 2500ohm, 10% +/-Tol, -1000,1000ppm/Cel, 6398,

99A2A-B24-E12/R54规格参数

参数名称	属性值
是否Rohs认证	不符合
Objectid	772665064
Reach Compliance Code	unknown
构造	Rotary
最高工作温度	125 °C
最低工作温度	-40 °C
封装高度	18.42 mm
封装长度	15.88 mm
封装形式	Panel Mount
封装宽度	24.77 mm
额定功率耗散 (P)	0.5 W
电阻	2500 Ω
电阻器类型	POTENTIOMETER
旋转角	240 deg
系列	99
尺寸代码	6398
技术	CONDUCTIVE PLASTIC
温度系数	1000 ppm/°C
容差	10%

99A2A-B24-E12/R54文档预览

VE S C O

AV R M

AI SIO PL

LA N IA

BL S NT

Features

■

Virtually inﬁnite electrical circuit isolation

■

Metal or plastic shaft options

■

DPST and DPDT switch options

■

RoHS compliant versions available*

Model 97 & 99

5/8 ” Square Single-Turn Panel Control with Rotary Switch

Potentiometer Speciﬁcations

Initial Electrical Characteristics

Conductive Plastic Element

Cermet Element

Standard Resistance Range

Linear Tapers (A, B, E, & H) .........................(B & E) 1 K ohms to 1 megohm ......................... (A & H) 100 ohms to 1 megohm

Audio Tapers (C, D, F, G, S, & T) .................(D,G,S, & T) 1 K ohms to 1 megohm ................. (C & F) 1 K ohms to 1 megohm

Total Resistance Tolerance ...............................10 % or 20 % .................................................... 5% or 10%

Independent Linearity .......................................±5 % .................................................................. ±5 %

Absolute Minimum Resistance .........................2 ohms maximum .............................................. 2 ohms maximum

Effective Electrical Angle ..................................(Linear tapers) 240 ° ± 5 °.................................. (Linear tapers) 240 ° ± 6 °

(Audio tapers) 225 ° ± 5 ° .................................. (Audio tapers) 225 ° ± 6 °

Contact Resistance Variation ...........................±1 % .................................................................. ±1 % or 3 ohms (whichever is greater)

Dielectric Withstanding Voltage (MIL-STD-202, Method 301)

Sea Level ....................................................1,500 VAC minimum .......................................... 1,500 VAC minimum

70,000 Feet .................................................500 VAC minimum ............................................. 500 VAC minimum

Insulation Resistance (500 VDC) ......................1,000 megohms minimum ................................. 1,000 megohms minimum

Power Rating (Voltage Limited By Power Dissipation or 350 VAC, Whichever Is Less)

+70 °C Single Section Assembly ................(Linear tapers) 0.5 watt ...................................... (Linear tapers) 2 watts

(Audio tapers) 0.25 watt .................................... (Audio tapers) 1 watt

+70 °C Multiple Section Assembly .............(Linear tapers) 0.5 watt/section ......................... (Linear tapers) 1 watt/section

(Audio tapers) 0.25 watt/section ....................... (Audio tapers) 0.5 watt/section

+125 °C .......................................................0 watt................................................................. 0 watt

Theoretical Resolution ......................................Essentially inﬁnite .............................................. Essentially inﬁnite

Environmental Characteristics

Operating Temperature Range .......................... -40 °C to +125 °C ................................................-40 °C to +125 °C

Storage Temperature Range.............................. -55 °C to +125 °C ................................................-55 °C to +125 °C

Temperature Coefﬁcient Over Storage

Temperature Range.......................................... ±1,000 ppm/°C.....................................................±150 ppm/°C

Vibration (Single Section) ................................... 15 G ......................................................................15 G

Total Resistance Shift ................................... ±2 % maximum....................................................±2 % maximum

Voltage Ratio Shift ........................................ ±5 % maximum....................................................±5 % maximum

Shock (Single Section) ....................................... 30 G ......................................................................30 G

Total Resistance Shift ................................... ±2 % maximum....................................................±2 % maximum

Voltage Ratio Shift ........................................ ±5 % maximum....................................................±5 % maximum

Load Life ............................................................ 1,000 hours ..........................................................1,000 hours

Total Resistance Shift ................................... ±10 % maximum..................................................±5 % maximum

Rotational Life (No Load) ................................... 100,000 cycles .....................................................100,000 cycles

Total Resistance Shift ................................... (Linear tapers) 10 ohms or ±15 % TRS max. ......(All tapers) ±5 % TRS max.

(whichever is greater)

(Audio tapers) ±20 % maximum

Contact Resistance Variation

@ 50,000 cycles ........................................... (Linear tapers) ±2 %.............................................±2 %

(Audio tapers) ±3 % .............................................±3 %

Moisture Resistance (MIL-STD-202, Method 103, Condition B)

Total Resistance Shift ................................... (Linear tapers) ±10 % TRS maximum .................(All tapers) ±5 % TRS maximum

(Audio tapers) ±20 % TRS maximum

Insulation Resistance (500 VDC) .................. 100 megohms minimum ......................................100 megohms minimum

IP Rating............................................................. IP 40 .....................................................................IP 40

*RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

Model 97 & 99

5/8 ” Square Single-Turn Panel Control with Rotary Switch

Potentiometer Speciﬁcations

Mechanical Characteristics

Stop Strength (1/4 ” D shaft) .............................................................................................................................................45.19 N-cm (4 lb.-in.)

(1/8 ” D shaft) .............................................................................................................................................33.89 N-cm (3 lb.-in.)

Mechanical Angle.................................................................................................................................................................................300 ° ±5 °

Torque

Starting ........................................................................................................................................... 0.3 max. above average running torque

Running Torque

Single or Dual Section (A & R Bushings) .................................................................................................. 0.21 to 1.06 N-cm (0.3 to 1.5 oz.-in.)

Single or Dual Section (C & U Bushings) .................................................................................................. 0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)

Mounting .............................................................................................................................................1.7-2.0 N-m (15-18 lb.-in.) maximum

Variation ...................................................................................................................... 0.35 N-cm (0.5 oz.-in.) maximum in 45 ° shaft travel

Weight (Single Section, Metal Bushing)...............................................................................................................................12.7 grams nominal

(Each Additional Section) ....................................................................................................................................................4 grams nominal

Terminals .................................................................................................................................Printed circuit terminals, J-Hooks or solder lugs

Soldering Condition ...........................................Recommended hand soldering using Sn95/Ag5 no clean solder, 0.025 ” wire diameter.

Maximum temperature 399 °C (750 °F) for 3 seconds. No wash process to be used with no clean ﬂux.

Marking ..................................................................................Manufacturer’s trademark, date code, resistance, manufacturer’s part number

Ganging (Multiple Section Potentiometers).............................................................................................................................2 cups maximum

Hardware ...................One lockwasher and one mounting nut is shipped with each potentiometer, except where noted in the part number.

NOTE:

Performance speciﬁcations do not apply to units subjected to printed circuit board cleaning procedures.

room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

Model 97 & 99

5/8 ” Square Single-Turn Panel Control with Rotary Switch

Rotary Switch Speciﬁcations

Initial Electrical Characteristics

Contacts:

DPST ........................................................................................................................................................N.O/N.O., N.C./N.C. or N.O./N.C.

DPDT ..........................................................................................................................................................2 N.O./N.C. (break before make)

Power Rating (Resistive Load):

DPST ..................................................................................... 2 A @ 125 volts RMS-60 Hz or 2 A @ 28 VDC, 1 A @ 250 volts RMS-60 Hz

DPDT .....................................................................................................................................1 A @ 125 volts RMS-60 Hz or 1 A @ 28 VDC

Contact Resistance (0.1 VDC-10 mA) ...............................................................................................................................10 milliohms nominal

Contact Bounce ...........................................................................................................................................................5 milliseconds maximum

Dielectric Withstanding Voltage (MIL-STD-202, Method 301)

Sea Level ........................................................................................................................................................................1500 VAC minimum

Insulation Resistance ................................................................................................................................................. 1000 megohms minimum

Environmental Characteristics

Operating Temperature Range .................................................................................................................................................... 0 °C to +70 °C

Exposure Temperature Range ................................................................................................................................................-65 °C to +125 °C

Vibration (Dual Section).................................................................................................................................................................................. 8 G

Contact Resistance .................................................................................................................................................. 10 milliohms maximum

Contact Bounce ................................................................................................................................................... 0.1 millisecond maximum

Shock (Dual Section).................................................................................................................................................................................... 20 G

Contact Resistance .................................................................................................................................................. 10 milliohms maximum

Contact Bounce ................................................................................................................................................... 0.1 millisecond maximum

Rotational Life ................................................................................................................................................................................25,000 cycles

Switch Actuating Torque (50% Duty cycle @ Rated Power Load) ........................................................... 1.41 to 4.94 N-cm (2 to 7 oz.-in.)

Contact Resistance ................................................................................................................................................ 100 milliohms maximum

Moisture Resistance (MIL-STD-202, Method 106, Condition B)

Contact Resistance (0.1 VDC-10 mA) ..................................................................................................................... 10 milliohms maximum

Insulation Resistance (After 24 Hours @ Room Temperature) (500 VDC) ..............................................................100 megohms minimum

Housing Material .......................................................................................................High temperature, ﬂame retardant, thermosetting plastic

Mechanical Characteristics

Actuating Torque (Each Section, Switch Module Only).............................................................................. 3.53 to 10.59 N-cm (5 to 15 oz.-in.)

Running Torque (Out of Detent, 2-4 Module Assembly) ............................................................................. 0.21 to 1.41 N-cm (0.3 to 2 oz.-in.)

Detent ................................................................................................................................................................................CW or CCW standard

Actuation Angle ......................................................................................................................................................................................20 ° ±5 °

Contact Materials.................................................................................................................................................... Fine silver with gold overlay

Terminal Styles .............................................................................................................................................................................Solder lug only

Standard Orientation ........................................................................................................................................ In-line with control terminals

Optional ....................................................................................................................................................Rotated 90 ° CCW from standard

Terminal Strength (Before and After Soldering Heat Exposure) .................................................................................... 0.9 kg (2 lbs.) minimum

NOTE:

Performance speciﬁcations do not apply to units subjected to printed circuit board cleaning procedures.

room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

Model 97 & 99

5/8 ” Square Single-Turn Panel Control with Rotary Switch

Product Dimensions

Model 97 PC Pin Terminals, “L” Pattern

MOUNTING

SURFACE

12.70 ± .229

(.500 ± .009)

0.79 ± .025

(.031 ± .010)

DIA.

13.72 ± 0.38

(.540 ± .015)

1.37 ± 0.08

(.054 ± .003)

2.36 ± 0.08

(.093 ± .003)

15.88

(.625)

7.92

(.312)

SEE

HOW TO ORDER

CHART FOR

BUSHING OPTIONS.

DIA.

0.81

TYP.

(.032)

5.08 ± 0.38

(.200 ± .015)

11.05 ± 0.20

(.435 ± .008)

1.19

(.047)

“A” STYLE

A.R. LUG

9.53

(.375)

12.7 ± 1.02

(.500 ± .040)

2.54

(.100)

2.54

(.100)

0.76 ± 0.05

(.030 ± .002)

TYP.

SEE

FOR SHAFT

OPTIONS.

Model 99 Solder Lug Terminals, "Triangular" Pattern

5.08 ± 1.02

(.200 ± .040)

5.59 ± .20

(.220 ± .008)

4.45 ± .38

(.175 ± .015)

2.54

(.100)

2.54

(.100)

2.03

(.080)

3 PLCS.

.41

(.016)

2.29

1.02

(.040) WIDE X (.090) LONG

3 PLCS.

.381

TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.015 )FRACTION ± 1/64

9.65

.XX ±

ANGLE ±5 °

(.38)

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

Model 97 & 99

5/8 ” Square Single-Turn Panel Control with Rotary Switch

Product Dimensions

Model 97

(2nd Cup - Switch)

MOUNTING

SURFACE

2.77 ± .38

(.109 ± .015)

15.88

(.625)

REF.

Horizontal Term.

(Switch Types R57, R59, R61, R73)

18.42 ± 0.38

(.725 ± .015)

15.88

(.625)

16.89 ± .51

(.665 ± .020)

8.74 ± 0.25

(.344 ± .010)

2.54

(.100)

4 5

2.41 X 1.14 SLOT 6 PLCS

(.095 ± .045)

2.29

6 PLCS.

(.090)

2.54 ± 0.25

2 PLCS.

(.100 ± .010)

6 2

15.88 ± 0.38

(.625 ± .015)

2 PLCS.

2.77 ± .38

(.109 ± .015)

8.26 ± 0.25

(.325 ± .010)

Model 99

(2nd Cup - Switch)

MOUNTING

SURFACE

2.77 ± .38

(.109 ± .015)

24.77 ± .51

(.975 ± .020)

15.88

(.625)

REF.

Switch Module Variations

Shaft Flat Orientation

120 ° ± 5 ° STD.

FLAT ORIENTATION

(SHAFT AT CCW END)

CCW

POTENTIOMETER

TOTAL ROTATION 300 °

5.59 ± .38

(.022 ± .015)

16.89 ± .51

(.665 ± .020)

2.41 X 1.14

SLOT 6 PLCS

(.095 ± .045)

CCW DETENT

25 ° MAX.

ACTUATION

ANGLE

(TYPES 51,

53, 55, 57, 59,

61, 71, 73)

CW DETENT

25 ° MAX.

ACTUATION ANGLE

(TYPES 50, 52, 54,

56, 58, 60, 70, 72)

4 5

NOTE: Switch terminals shown in vertical position.

DPST (NC/NC)

(TYPES 54, 55, 60, 61)

DPST (NO/NO)

(TYPES 52, 53, 58, 59)

DPDT (NC/NC)

(TYPES 70, 71, 72, 73)

2.29

6 PLCS.

(.090)

DPST (NO/NC)

(TYPES 50, 51, 56, 57)

Switch contacts shown in detent position.

4.45 ± .38

(.175 ± .015)

2.77 ± .38

(.109 ± .015)

.381

TOLERANCES EXCEPT AS SHOWN: DECIMAL .XXX ± (.015 )FRACTION ± 1/64

9.65

.XX ±

ANGLE ±5 °

(.38)

DIMENSIONS:

(INCHES)

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications.

查看更多（仅显示前5页内容，查看全部内容请下载文档。）>

推荐资源

好几次进CCS cloud都得下载重装support真麻烦: 224921 感觉好像和进的频度有关，如果每天都进的话就不出这个，如果隔几天没进的话就会出这个，下载完安装，然后还得配置一会才能正常使用，稍微有点麻烦 ...; lidonglei1 微控制器 MCU

TMS320C74X的各个寄存器地址的问题: 我知道TMS320C74X有很多特殊功能寄存器,比如CSR,AMR等等,我想知道它们这些特殊功能寄存器具体地址是多少,我查看了很多资料都没有说道这个问题,都只说了这些寄存器的用法,每位带表的意思,但是都 ......; jiefeng DSP 与 ARM 处理器

新手UC3845求助: 有2台仪器均用到UC3845（贴片14脚）做电源控制。均为电源不起振问题。其中一个查外围元件没发现明显坏件，用热风枪加热UC3845及其周边元件，可以起振，冷却后，再上电，又不起振。去掉7脚的震 ......; jack007kkk 电源技术

【R7F0C809】小试定时器: 本帖最后由强仔00001 于 2015-9-15 00:07 编辑今天看到了瑞莎R7F0C8096定时器的功能，挺强大的:pleased::pleased:，可以产生中断，还可以输出PWM和测量脉冲宽度等。分别有单通道和多通 ......; 强仔00001 瑞萨MCU/MPU

关于用PCI1670数据采集卡控制F18电桥的问题: 原先F18电桥是用艾讯公司的AX5488采集卡控制的，初始化设置如下（GPIB地址为4）： Addr1 = 4 Flag = ibinit((2 * 16 ^ 2 + 14 * 16 + 1), 21, 256) Cmd$ = "ONL" Flag = ibwrt(Addr1, Cmd$, ......; nwuwmz 嵌入式系统

最新的ESP32/ESP8266下载软件: 刚找到的最新下载软件，支持ESP32. Flash Download Tools V3.4.1 (ESP8266 & ESP32) ESP32 Flash Download Tool V1.2.0 ...; dcexpert MicroPython开源版块

单片机STM32的5个时钟源知识

　　众所周知STM32有5个时钟源HSI、HSE、LSI、LSE、PLL，其实他只有四个，因为从上图中可以看到PLL都是由HSI或HSE提供的。　　其中，高速时钟(HSE和HSI)提供给芯片主体的主时钟.低速时钟(LSE和LSI)只是提供给芯片中的RTC(实时时钟)及独立看门狗使用，图中可以看出高速时钟也可以提供给RTC。　　内部时钟是在芯片内部RC振荡器产生的，起振较快，所以时钟在芯片刚上...[详细]
SIMATIC S7-1500 PLC左移指令（SHL）及样

TIA博途软件位移指令能将将累加器的内容逐位向左或者向右移动。移动的位数由N决定，向左移N位相当于累加器的内容乘以2N，向右移相当于累加器的内容处理2N。移位指令在逻辑控制中使用也很方便。 (1)左移指令(SHL) 当左移指令（SHL）的EN位为高电平“1”时，将执行移位指令，将IN端制定的内容送入累加器1低字中，并左移N端制定的位数，然后写入OUT端指令的目的地址中，左移指令（SHL）和参...[详细]
光伏直流熔断器如何申请UL248认证？

光伏直流熔断器是一种用于保护光伏电池组件、逆变器和直流负载的安全装置。为了保证其安全性和可靠性，需要通过UL248认证。在申请UL248认证之前，首先需要确定该产品符合UL标准的要求。UL标准可以通过官方网站或者相关资料获取。然后，需要选择一家符合要求的第三方测试机构-安可捷进行测试。测试公司会对光伏直流熔断器进行多项检测，包括电气性能、机械性能、绝缘性能等。测试结果需要符合UL标准...[详细]
EtherCAT FP介绍系列文章—多网段

EtherCAT（Ethernet for Control Automation Technology）是一种基于以太网的开发构架的实时工业现场总线通讯协议，EtherCAT是最快的工业以太网技术之一，同时它提供纳秒级精确同步。相对于设置了相同循环时间的其他总线系统，EtherCAT系统结构通常能减少25%-30%的CPU负载，EtherCAT的出现为系统的实时性能和拓扑的灵活性树立了新的标准。...[详细]
电动汽车和燃油车它们各自的优势是什么

目前电动车来势汹汹，但只是表象而已。燃油车的地位依然无法撼动，电动汽车可以说在环保排放上有着得天独厚的优势，动力也不弱，远远超过同价位的燃油车，但是有很多缺点目前无法克服。电动车目前最大的瓶颈就是电池。电池能量密度低、容量衰减、充电困难以及安全系数是目前电动汽车发展遇到的主要问题。想要提高续航里程那么只需要加大电池容量即可，但是汽车不仅空间有限而且总质量也不宜过高，总质量过大则电耗也会加大...[详细]
苹果印度扩张计划遇到新麻烦，富士康被曝在当地召回约 300 名中国工程师

8 月 25 日消息，苹果在印度的扩张遇到新麻烦。据彭博社报道，富士康科技集团已从印度召回约 300 名中国工程师，使苹果在当地的生产计划再度受阻。这些工程师来自富士康旗下裕展科技位于泰米尔纳德邦的工厂，这是数月以来第二次发生类似情况。裕展工厂主要生产旧款 iPhone 的金属外壳和显示模组，并未参与新一代 iPhone 17 的制造。该工厂才投产数月，而苹果的显示器依旧大量依赖进口。苹果...[详细]
基于FPGA的便携式逻辑分析仪设计

Logic analyzers are widely used tools in digital design verification and debugging. They can verify the proper functioning of digital circuits and help users identify and troubleshoot faults. They ...[详细]
共享智慧的变革：研究人员开发群体智能机器人

在自动化技术突飞猛进的今天，机器人之间的协作已不再是科幻场景。试想这样的画面：数十台机器在仓库中搬运货物却互不干扰；在一个餐厅里，机器人能准确将菜品送至指定餐位；又或者在一个工厂里，机器人团队可以根据需求动态调整任务分工。（图片来源：ieeexplore.ieee.org）据外媒报道，国际研究团队依托基于ROS2的开源框架开发新系统，使多个机器人能以智能、灵活且安全的方式协同作业，...[详细]
文远知行发布一段式端到端辅助驾驶解决方案，预计2025年内量产上车

8月21日，文远知行WeRide正式推出与博世合作的一段式端到端辅助驾驶解决方案——WePilot AiDrive，这距离双方合作的“两段式端到端”方案量产上车仅半年。目前，WePilot AiDrive已完成核心功能验证，预计2025年内实现量产上车，助力全球辅助驾驶行业走向更智能、更高效、更普适的大规模应用阶段。据悉，相比先感知再决策的传统两段式架构，文远知行WePilot Ai...[详细]
零基础入门stm32基本定时器详解

一、基本定时器介绍在STM32中，基本定时器有TIM6、TIM7等。基本定时器主要包含时基单元，提供16位的计数，能计数0~65535。基本定时器除了计数功能以外，还能输出给DAC模块一个TRGO信号。基本定时器框图如下：二、时基单元介绍 STM32的所有定时器都具备时基单元，时基单元的功能就是简单的计数，即计数时钟源TMxCLK的脉冲个数，这个时钟源来至APB1总线。高...[详细]
STM32定时器输入捕获功能应用——超声波模块

一、工作原理输入捕获是STM32单片机定时器的一项重要的功能，应用很广泛，常用于测量脉冲宽度，周期等。超声波模块测距的原理是：单片机给超声波模块（我用到的超声波模块型号是HC-SR04，下面简称HC-SR04）发送一个大于10us的高电平，触发HC-SR04发出8个40kHz的方波，并自动检测是否有信号返回，如果有信号返回，就会通过Echo对单片机输出一个高电平，高电平的持续时间就是超声波从...[详细]
是德科技研究发现：人工智能发展速度已超越基础设施准备程度

随着AI在各个行业中加速发展，对数据中心基础设施的需求也在迅速增长是德科技与Heavy Reading合作发布了《超越瓶颈：2025年AI集群网络报告》，探讨运营商如何演进以适应人工智能（AI）工作负载的规模和速度。报告显示近九成（89%）电信和云服务提供商计划扩大或维持AI基础设施投资，其中前三大增长因素分别为云集成（51%）、更高速的GPU（49%）和高速网络升级（45%）。 ...[详细]
电动汽车是利用发动机来实现12V车载供电吗

电动汽车的12V蓄电池供电并不是依靠发电机，只有燃油动力汽车才会依靠发动机带动发电机在行驶中发电，其作用是为12V车载设备供电；用这种发电即时供电的原因是因为12V蓄电池的容量太小，而且不能依靠外接设备充电。而电动汽车有一组动辄50kwh左右的动力电池组，其容量是燃油动力汽车电池的50~100倍甚至更高，车载12V电子设备的耗电量与容量相比小到几乎可以忽略；而动力电池组可依靠220市电充电，所以...[详细]
R型控制变压器在哪些场合得到广泛应用？

日常生活中电源变压器会因为使用场景的不同，电源变压器各自的功能和使用也有所不同，最常见到的可以分为：控制变压器、隔离变压器、整流变压器、三相/单相变压器、高压变压器、工频变压器、低频变压器等，那今天我们就来说说R型控制电源变压器他的功能和有哪些作用，下面我们一起来看看。首先，让我们来看看R型控制变压器的工作原理。控制变压器通常采用电磁感应的工作原理，主要由主线圈和次线圈组成，次线圈在主线圈...[详细]
关于ESD管的叫法，你知道几个?

中国汉字博大精深，关于ESD管的叫法可谓是千奇百样，你知道的有几个呢？据优恩小编所知，目前ESD管的叫法主要有ESD静电保护器、ESD静电保护二极管、ESD防护静电二极管、ESD二极管以及ESD管。叫法虽多，但其作用还是防护电路而生。其实不管是它的叫法，还是原理，都是应当知道的，在了解ESD管的前提基础上，我们其实还要对前身作个大概的知悉，例如电子产品为什么需要防雷过压保护，ESD静电...[详细]

器件捷径: E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF EG EH EI EJ EK EL EM EN EO EP EQ ER ES ET EU EV EW EX EY EZ F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF FG FH FI FJ FK FL FM FN FO FP FQ FR FS FT FU FV FW FX FY FZ G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GZ H0 H1 H2 H3 H4 H5 H6 H7 H8 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ I1 I2 I3 I4 I5 I6 I7 IA IB IC ID IE IF IG IH II IK IL IM IN IO IP IQ IR IS IT IU IV IW IX J0 J1 J2 J6 J7 JA JB JC JD JE JF JG JH JJ JK JL JM JN JP JQ JR JS JT JV JW JX JZ K0 K1 K2 K3 K4 K5 K6 K7 K8 K9 KA KB KC KD KE KF KG KH KI KJ KK KL KM KN KO KP KQ KR KS KT KU KV KW KX KY KZ

热门器件

开源项目推荐更多

热门活动更多

热门文章更多

技术资料推荐更多