Datasheet> 器件分类 > 无源元件> 电阻器> 81A2A-G40-E17/E17

文档预览

81A2A-G40-E17/E17: 产品描述Potentiometer, Conductive Plastic, 1W, 25000ohm, 10% +/-Tol, -1000,1000ppm/Cel,; 产品类别无源元件电阻器; 文件大小398KB，共6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

81A2A-G40-E17/E17概述

Potentiometer, Conductive Plastic, 1W, 25000ohm, 10% +/-Tol, -1000,1000ppm/Cel,

81A2A-G40-E17/E17规格参数

参数名称	属性值
Is Samacsys	N
YTEOL	0
Objectid	770828175
Reach Compliance Code	unknown
ECCN代码	EAR99
旋转角	240 deg
构造	Square
端子数量	6
封装宽度	26.04 mm
引线长度	12.7 mm
封装高度	15.88 mm
封装长度	15.88 mm
安装特点	PANEL MOUNT
封装形式	Panel Mount
额定功率耗散 (P)	1 W
电阻	25000 Ω
电阻器类型	POTENTIOMETER
技术	CONDUCTIVE PLASTIC
温度系数	1000 ppm/°C
容差	10%
最高工作温度	125 °C
最低工作温度	-40 °C
表面贴装	NO
是否Rohs认证	No

文档预览

下载PDF文档

全文
预览

VE S CO

AV R M

AI SIO PL

LA N IA

BL S NT

Features

■

Metal shaft and bushing

■

Consistent, smooth quality feel

■

Up to 4 sections available

■

Rotary switch option designed

Non-RoHS models are currently

available, but not recommended

for new designs. See

Product

Obsolescence Memo

for details.

for “on-off” function control

■

RoHS compliant versions available*

81/82 - 5/8 ” Square Single-Turn Panel Control

85/86 - 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 .........................................................................±20 % or 10 % ...................................... ±10 % or 5 %

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 At 70 °C (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 taper) 10 ohms or ..................... (All tapers) ±5 % TRS maximum

±10 % TRS max. (whichever is greater)

(Audio taper) ±20 % maximum

Contact Resistance Variation @ 50,000 cycles

(Audio taper) ..................................................................................±3 % ...................................................... ±3 %

(Linear taper) .................................................................................±2 % ...................................................... ±2 %

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

Total Resistance Shift ...........................................................................(B & E tapers) ±10 % maximum ........... ±5 % maximum (all tapers)

(D, G, S & T tapers) ±20 % maximum

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

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

Mechanical Characteristics

Stop Strength

1/4 ” and 1/8 ” diameter shafts ......................................................................................................................................................... 45.19 N-cm (4 lb.-in.)

7/8 ” length shaft ................................................................................................................................................................................. 22.6 N-cm (2 lb.-in.)

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

Torque

Starting and Running Torque (Non-Locking Bushings)

Single Section ................................................................................................................................................................. 0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)

Dual Section .................................................................................................................................................................... 0.14 to 1.06 N-cm (0.2 to 1.5 oz.-in.)

Triple Section ................................................................................................................................................................... 0.35 to 1.41 N-cm (0.5 to 2.0 oz.-in.)

Quadruple Section .......................................................................................................................................................... 0.35 to 1.41 N-cm (0.5 to 2.0 oz.-in.)

Starting and Running Torque (Locking Bushings) ..................................................................................................... 0.14 to 2.82 N-cm (0.2 to 4.0 oz.-in.)

Shaft Locking Torque with Locknut @ 10 in-lb. (B & E Bushings) ........................................................................................................ 14 N-cm (20 oz-in.)

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

Weight (Single Section).............................................................................................................................................................................. 21 grams maximum

(Each Additional Section) ...................................................................................................................................................................... 6 grams maximum

Terminals .......................................................................................................................................................................... Printed circuit terminals or J-Hooks

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, wiring diagram, date code and resistance, manufacturer’s part number

Ganging (multiple section potentiometers) ..................................................................................................................................................... 4 cup maximum

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

For dimensional drawings see pages 3 & 4.

For ordering information see page 5.

NOTE: Model 81/82 performance speciﬁcations do not apply to units subjected to printed circuit board cleaning procedures.

1At room ambient: +25 °C nominal and 50 % relative humidity nominal, except as noted.

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

Speciﬁcations are subject to change without notice.

Customers should verify actual device performance in their speciﬁc applications

81/82 - 5/8 ” Square Single-Turn Panel Control

85/86 - 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

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

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

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

(Triple Section) .................................................................................................................................................................................................... 5 G

(Quadruple Section) ........................................................................................................................................................................................... 3 G

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

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

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.)

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

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

Mechanical Characteristics

Actuating Torque (Each Section, Switch Module Only) ....................................................................................................... 3.53 to 10.6 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 ...................................................................................................................................................................................................................25 °

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: Model 81/82 performance speciﬁcations do not apply to units subjected to printed circuit board cleaning procedures.

1At 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

推荐资源

带有双极性输出的电流扩展电路图

电容式变光开关电路（1）

利用转换开关预选的正反转起停控制线路

DTl000／CM4200型4 1/2位数字万用表电路

隔离放大器电路

CXA1191M收音电路

MSP430G2xx3_Code_Examples Manifest: 493820 DISCLAIMERS Export Control Classification Number (ECCN) Any use of ECCNs listed in the Manifest is at the user’s risk and without recourse to TI.Your ......; 火辣西米秀微控制器 MCU

具备无线通讯的三相多功能电能表设计方案: 随着经济体制改革的深入，在市场的推动下，数字电能表发展迅猛，中国目前已成为世界电能计量行业最具有活力的市场。随着用户用电负荷的增加，供电质量的要求也越来越高，供电部门需要了解电网 ......; zbz0529 电源技术

关于现场总线的通信问题: 现场总线通信部分一般分调度通信和非调度通信多数为调度通信，用于设备间周期性传输，控制的数据预先设定。非调度通信用于参数设置、设备诊断报警处理。从其功能上分，有主站与从站区分。从站仅 ......; lukdtc 无线连接

抗du/dt干扰能力为50 V/ns: 如图，经常看到IR系列的IC说明“抗du/dt干扰能力为50 V/ns”，这个概念是什么？还有在别的地方看到“较小的栅极电阻还使得IGBT开通di/dt变大”“波形中di/dt分量比较大”这些是什么概念。 ...; 平漂流电源技术

Protel 99SE总是加载不上怎么回事？: Protel 99SE刚装上能用，但是提示许可证过期，过段时间就不能用了，新建中不出现原理图、库等之类的标志，以前做好的东西也无法看，象sch等文件都显示一个方框＋小箭头，别人跟我用一样的安装程 ......; cxdao 嵌入式系统

【藏书阁】晶体管-晶体管逻辑电路: 37706 目录：第一章基本晶体管-晶体管逻辑电路第二章触发器第三张译码器第四章多路转换器第五章移位寄存器第六章计数器第七章运算电路第八章奇偶校验和优先编码 ......; wzt 模拟电子

什么是线扫工业镜头？线扫镜头有哪些作用？

线扫镜头是一种与线扫相机搭配使用的工业镜头，成像原理是利用线性传感器将工件的图像拍摄下来，并进行数字信号处理来达到高精度的成像效果。本质上说，线扫镜头跟面阵镜头没有区别。线扫镜头的特点是最大像面尺寸比较大，它能够在高速运动的物体上进行图像捕捉，具有高速的扫描频率和快速的曝光时间。线扫镜头通常具有较小的视场角度，但能够提供高分辨率和优秀的图像质量。普密斯线扫工业镜头的分辨率更高，采样速度也...[详细]
你知道“汽车电子围栏”是什么吗

什么是“汽车电子围栏” 车队管理者可在亚美科技的车辆后台管理系统(PC端或者手机端)中设置一个图形区域(规则或不规则)或按行政区划分。当已安装车智汇智能终端的车辆驶离指定的区域，系统会按事先设定的条件，启动相关的处理程序，及时向车队管理者发出警报及手机端会推送通知。亚美科技课堂：汽车电子围栏的工作流程第一，为汽车安装亚美科技智能终端的产品。第二，车队管理者在亚美科技的车辆后台管理系统中...[详细]
莱迪思将举办关于最新小型、低功耗FPGA创新的网络研讨会

中国上海——2025年8月26日——莱迪思半导体公司，低功耗可编程器件的领先供应商宣布，公司将举办网络研讨会，探讨其基于屡获殊荣的Lattice Nexus™ FPGA产品系列的小型FPGA的最新扩展。本次直播将对新推出的莱迪思Certus™-NX和莱迪思MachXO5™-NX FPGA器件进行深入的技术介绍，这些新拓展的器件提供了高I/O密度、低功耗和增强的安全功能。莱迪思专家还将介...[详细]
HY16F188高精度触控厨房秤应用

1. Introduction Electronic scales are gradually replacing traditional measuring tools like springs and balances in everyday life, such as electronic price computing scales and electronic weigh...[详细]
全域800V+大电池+全温域5C超充岚海智混技术发布

8月22日，岚图汽车通过线上直播形式正式发布了岚海智混技术。这一项融合了全域800V高压系统、全温域5C超充、63kWh超大电池于一体的智能混动技术，重新定义了混动技术的天花板，实现中国新能源汽车在混动领域的重大技术突破。技术破局，以创新引领混动行业变革中国新能源汽车产业走过了一条从政策驱动到市场驱动、从技术引进到自主研发的跃升之路。混动技术作为过渡阶段的关键路径，经历了四个阶...[详细]
用国产大模型，特斯拉接入豆包和DeepSeek

日前，特斯拉发布了《特斯拉车机语音助手使用条款》，宣布车机语音助手将接入火山引擎提供的豆包大模型（云雀大模型）和DeepSeek Chat，而对于具体上线时间官方暂未明确。该条款指出，每辆特斯拉都配备了语音助手功能。车主可以通过物理按键、“嘿，Tesla”或自定义唤醒词激活车机语音助手，进而与车辆进行语音交互。根据特斯拉中国官网更新的《特斯拉车机语音助手使用条款》显示，全新上...[详细]
智元机器人明年预计出货量将达数万台，发布最新产品灵犀 X2-W

8 月 21 日消息，智元机器人在其首届合作伙伴大会上透露，今年出货量预计可达数千台，明年预计会有数万台的出货。未来几年，该公司希望每年出货量可达到数十万台。智元机器人还发布了最新产品灵犀 X2-W，这是一款基于 X2 平台衍生，针对“作业智能”开发的轮式双臂机器人原型。同时，智元启动了首个专注具身智能产业链的创业加速计划——“智元 A 计划”，旨在孵化 50+ 高潜力早期项目，在三年内打造千亿...[详细]
STM32单片机的学习方法（方法大体适用所有开发版入门）

1，一款实用的开发板。这个是实验的基础，有时候软件仿真通过了，在板上并不一定能跑起来，而且有个开发板在手，什么东西都可以直观的看到，效果不是仿真能比的。但开发板不宜多，多了的话连自己都不知道该学哪个了，觉得这个也还可以，那个也不错，那就这个学半天，那个学半天，结果学个四不像。倒不如从一而终，学完一个在学另外一个。 2，两本参考资料，即《STM32 参考手册》和《Cortex-M3 权威指南》。...[详细]
英飞凌低噪声放大器在无线数据接收中的应用

　　2014年6月，工信部向联通和电信颁发4G FD-LTE牌照，加上在此之前发放给移动、联通、电信的4G TD-LTE牌照，这意味着国内三大运营商全面进入4G商用化时代，同时各大手机制造商纷纷推出多模、多频的LTE手机和终端，目前国内LTE用户规模已经达到5,000万。　　相对于3G而言，4G LTE能够提供更大的信道容量，手机用户可以享用更高的数据下载速率，在FD-LTE 20MHz...[详细]
汽车使用劣质火花塞负面影响多，如何区分火花塞真假

火花塞对于发动机来说是必不可少的一个装置了，正所谓离开了火花塞，发动机无法正常的工作，严重的后果就是在高速行车的时候，那么对于火花塞来说，购买更换看似简单，但是实际上面来说，使用不当带来的危害还是很大的，火花塞主要的作用就是满足发动机在工作的时候所需要的电能，达到促进汽油燃烧的这么一个装置，而对于火花塞来说，假的劣质的火花塞有哪些危害？假的火花带来的后果会导致加速性能下降，冷启动困难等一...[详细]
是德科技携手新思科技运用AI进行射频设计迁移

是德科技将其电磁仿真器与新思科技的 AI 驱动射频设计迁移流程相结合，打造集成设计流程，助力从台积电 (TSMC) 的 N6RF+ 工艺技术迁移到 N4P 工艺技术。该迁移工作流程基于晶圆代工厂的模拟设计迁移 (ADM) 方法，旨在简化无源器件和设计组件的重新设计，使其符合先进的射频工艺规则。是德科技表示，该协作迁移工作流程充分利用了 N4P 工艺的性能提升，用于从 N6RF+ 迁移...[详细]
控制UPS逆变器的三种方法，响应速度快

ups是指不间断电源，包含能量存储设备。主要用于为一些对电力稳定性要求较高的设备提供不间断电源。控制UPS逆变器的三种方法当市电输入正常时，ups将向负载提供市电电压调节器。此时，ups是一个交流电压调节器，它也为机器中的电池充电。逆变器是ups的心脏。它将直流电转换成用户所需的交流电。对于ups来说，逆变器输出电压的质量决定了ups的整体性能。以下是对的3种控制方法的简要介绍up...[详细]
日本应对功率半导体挑战举步维艰

据《日经新闻》报道，日本在应对中国功率半导体挑战方面表现不佳。日本功率芯片市场主要有五家公司：三菱电机、富士电机、东芝、罗姆和电装，每家公司的全球市场份额均不足5%。市场份额的相似性是合作困难的原因之一，因为他们都不明白为什么要为了建立合作伙伴关系而向同等水平的公司做出让步。合作的另一个问题是产品线不兼容，每家公司都拥有各自为特定客户开发的丰富零部件。尽管东芝和罗姆已同意...[详细]
Plessey Semiconductors 被中国资本收购

Plessey Semiconductors 已被 Haylo Labs 收购。Haylo Labs 成立于去年 3 月，由中国科技公司歌尔股份提供 1 亿美元五年期贷款。 Haylo Labs 五个月前由成立两年的风险投资基金 Haylo Ventures 创立。Haylo Ventures 表示：“我们认识到整合分散但前景广阔的 MicroLED 行业的必要性，因此成立了 Haylo L...[详细]
单片机脚本语言-移植lua到stm32-MDK

Lua简单介绍 Lua 是一个小巧的脚本语言。作者是巴西人。该语言的设计目的是为了嵌入应用程序中，从而为应用程序提供灵活的扩展和定制功能。 Lua脚本能够非常easy的被C/C++ 代码调用，也能够反过来调用C/C++的函数，这使得Lua在应用程序中能够被广泛应用。不只作为扩展脚本，也能够作为普通的配置文件，取代XML,Ini等文件格式，而且更easy理解和维护。 Lua的目标是成为一个非常...[详细]

器件捷径: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

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