Datasheet> 器件分类 > 无源元件> 电阻器> 81N2F-E20-B22/B22

文档预览

81N2F-E20-B22/B22: 产品描述Potentiometer, Conductive Plastic, 1W, 250000ohm, 20% +/-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

81N2F-E20-B22/B22概述

Potentiometer, Conductive Plastic, 1W, 250000ohm, 20% +/-Tol, -1000,1000ppm/Cel,

81N2F-E20-B22/B22规格参数

参数名称	属性值
是否Rohs认证	不符合
Objectid	771349306
Reach Compliance Code	unknown
构造	Square
引线长度	12.7 mm
最高工作温度	125 °C
最低工作温度	-40 °C
封装高度	15.88 mm
封装长度	15.88 mm
封装形式	PCB Mount
封装宽度	26.04 mm
额定功率耗散 (P)	1 W
电阻	250000 Ω
电阻器类型	POTENTIOMETER
旋转角	240 deg
系列	81
技术	CONDUCTIVE PLASTIC
温度系数	1000 ppm/°C
容差	20%

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

请问版主这个st的美女是谁？: 怎么每份文档都有她啊？下载 (35.86 KB) 2010-7-16 10:43 ...; boesdt stm32/stm8

电压跟随器的典型用途: 在同相放大器中置R1=∞或者Rf=0，就成为了单位增益放大器，或电压跟随器。作为一个电压放大器，他的增益仅为1.然而他的特长是起到一个阻抗变换器的作。因为从他的输入端看进去，他是开路， ......; 傅里叶的猫模拟电子

J-Link用户手册_V2.3（共享）: 刚才看到一个网友提的关于JLINK的问题，我想这个文档可能会对你有所帮助。很高兴认识大家。本帖最后由 desk1983 于 2011-4-15 21:28 编辑 ]...; desk1983 stm32/stm8

运放或者电压比较器输入信号电压大小与供电电压关系: 我想问一下，我用LM393组成过零比较器，“-”端接地，供电采用单极型+5V供电，那么“+”端可以输入峰值为±10V的电压信号吗？ ...; xzyxtt 模拟电子

16X16点阵屏显示时候当前行亮下一行微亮: 使用595+154实现16X16点阵的设计，595给高电平，154给低电平实现点阵控制，目前点阵的设计显示均能够按照程序运行，出现当前行为高电平的下一行会有一点模糊的亮度，感觉是程序的问题，程序源码 ......; 冻结的鱼 51单片机

CC4027------双上升沿J－K触发器: 用芯片CC4027双上升沿J－K触发是一个很好的例子...; rain 模拟电子

通过串口利用printf函数输出数据

　　一。printf函数格式　　printf函数具有强大的输出功能　　%表示格式化字符串输出　　目前printf支持以下格式的输出，例如：　　printf( %c ,a);输出单个字符。　　printf( %d ,a);输出十进制整数。　　printf( %f ,a);输出十进制浮点数. 　　printf( %o ,a);输出八进制数。　　printf( %s ,a);输出字符串。...[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]
天太机器人斩获全球首个万台人形机器人大单

8月20日，天太机器人有限公司与山东未来机器人技术有限公司、山东未来数据科技有限公司、港仔机器人集团等战略合作伙伴，共同签署全球首个具身智能人形机器人10000台订单。这不仅是全球人形机器人行业诞生以来数量最大的单笔订单，更意味着，曾被视作“科幻”的人形机器人，正式走出实验室、跨越概念阶段，作为一种可量产、可交付、可解决实际问题的生产力工具，浩浩荡荡地涌入现实世界的千行百业。天太机...[详细]
嵌入式大佬给你分析stm32串口

　　stm32作为现在嵌入式物联网单片机行业中经常要用多的技术，相信大家都有所接触，今天这篇就给大家详细的分析下有关于stm32的出口，还不是很清楚的朋友要注意看看了哦，在最后还会为大家分享有些关于stm32的视频资料便于学习参考。　　什么是串口　　UART : Universal Asynchronous Receiver/Transmitter 通用异步收发器　　USART : Uni...[详细]
STM32必学的时钟系统

相较于51单片机，stm32的时钟系统可以说是非常复杂了，我们现在看下面的一张图：上图说明了时钟的走向，是从左至右的从时钟源一步步的分配给外设时钟。需要注意的是，上图左侧一共有四个时钟源，从上到下依次是：高速内部时钟（HSI）：以内部RC振荡器产生，频率为8Mhz,但相较于外部时钟不稳定。高速内部时钟（HSE）：以外部晶振作为时钟源，晶振频率可取范围为4~16Mhz,一般采用8Mhz的...[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]
小型计算机——加固边缘部署的实时数据分析

与云数据库相比，小型计算机是专门为网络边缘的去中心化坚固计算而构建的。通过将应用程序、分析和处理服务移动到更靠近数据生成源的位置，业务运营可以获得改进的实时计算应用程序性能。 l 从奔腾到酷睿i5的可扩展CPU性能 l 智能电源点火管理和CAN总线网络支持 l 无线局域网和广域网LTE连接 l 丰富的I/O可扩展性，包括PoE、PCI、PCIe、COM l 适用于宽工作温度和宽电压输入的坚固...[详细]
MCX E系列5V MCU发布：应对严苛环境，保障系统安全

MCX E系列是恩智浦丰富的MCX产品组合中最注重可靠性与安全性的系列。随着该系列的推出，恩智浦进一步丰富了其5V兼容的MCU产品线，为从3V到5V的设计提供一致的开发体验，帮助工程师在复杂环境中打造高可靠性的系统。随着边缘应用所处的环境日益严苛，对微控制器的韧性也提出了更高要求。MCX E系列应运而生，基于 Arm ® Cortex ® -M4F内核，专为在电气和热环境极端复杂的场景中...[详细]
高频开关整流器用功率管是啥

自20世纪70年代开关电源实现“20 kHz”的革命之后的一段时间内，虽然在电路技术方面进行了改进和提高，但局限于当时半导体器件工业的发展水平，作为开关电源主要部件的大功率开关管的主要参数均满足不了更高频率、更大功率开关电源的设计要求。高频开关整流器用功率管是什么自20世纪80年代以来大功率、高反压的绝缘栅场效应功率管问世之后，伴随着开关电源专用集成控制电路的应用，已逐步将开关电源的工作...[详细]
MODBUS转PROFIBUS网关YT-PB-03将仪表接入PROFIBUS的配制方法

工具/原料移通创联MODBUS转PROFIBUS网关YT-PB-03 西门子s7-300 本文主要介绍MODBUS转PROFIBUS网关YT-PB-03将仪表接入PROFIBUS的配制方法。移通创联MODBUS转PROFIBUS网关YT-PB-03广泛应用于变频器、电机启动保护装置、智能高低压电器、电量测量装置、各种变送器、智能现场测量设备及仪表等等,都可以使用该rs485转PROF...[详细]
对电动汽车而言，给电池充电有什么技巧吗

充电是电动汽车离不开的一个话题，电池对于新能源汽车而言是核心的部件，对于电动汽车来说，给电池充多少电最好？根据现在的电动汽车采用的电池技术来说，充多少电根据用车场景去进行判断，对于电动汽车来说，在充电的时候也不一定非要充满，达到90%以上，或者能够满足你下一次出行需要的里程数就足够了。现在电动汽车采用锂离子电池，锂离子动力电池没有记忆功能，能够满足快速充电的需求，但从电池的构造上面而言，电...[详细]
固态电池能解决新能源汽车的续航问题吗

对于新能源汽车来说，电池的重要性是毋庸置疑的，不仅决定着汽车的性能，而且电池密度与汽车的续航也有着很大的关系。目前市面上大部分的新能源汽车采用的都是三元锂电池，其能量密度和安全性还是存在着一定的缺陷。也正是因为如此，更加完美的固态电池就出现了，那么固态电池是否能够真正的解决新能源汽车所面临的续航和安全焦虑呢？首先，三元锂电池属于一种液态电池，其内部的电解质呈液体状态，所以能量密度达不到最高...[详细]
Intel首款机架级AI芯片！Jaguar Shores首秀曝光：用上HBM4+18A

8月21日消息，据报道，Intel正在开发的新一代AI芯片Jaguar Shores近日首次得到曝光。据Andreas Schilling分享的照片显示，Jaguar Shores测试平台目前被Intel的热工程团队使用，可能是为了研究合适的冷却方案。该芯片安装在一块开发板上，封装尺寸相当大，据称达到了92.5mm×92.5mm，这表明它是一个面向高性能计算（HPC）的平台。 Jagu...[详细]
带你看看扫地机器人的内在

作为智能家居新概念的领跑者，扫地机器人已获得了较大的市场。扫地机器人，又称自动打扫机、智能吸尘、机器人吸尘器等，是智能家用电器的一种，能凭借一定的人工智能，自动在房间内完成地板清理工作。一般采用刷扫和真空方式，将地面杂物先吸纳进入自身的垃圾收纳盒，从而完成地面清理的功能。扫地机器人的功能： 1.每分钟5000转的旋转刷子，能够同时从4个方向清洁污垢； 2.使用镍氢(Ni-MH)电池或锂(Li)...[详细]
中国研究人员取得电池突破或将改变电动汽车的性能和续航里程

锂电池是电动汽车的关键部件，其高能量密度使其能够在相对紧凑、轻巧的封装中存储大量能量。这对于实现单次充电后的长续航里程至关重要。图片来源：《Nature》期刊据外媒报道，中国研究人员宣布在锂电池技术上取得重大突破，使特斯拉最先进电池的能量密度（电池相对于其尺寸和重量所能存储的能量）翻了一番。目前，特斯拉最好的电池能量密度约为每公斤300瓦时，而天津大学研究人员研发的电池能量...[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