Datasheet> 器件分类 > 无源元件> 电阻器> 82E4B-E20-C25/C25/C25/C25

文档预览

82E4B-E20-C25/C25/C25/C25: 产品描述Potentiometer, Cermet, 2W, 1000000ohm, 10% +/-Tol, -150,150ppm/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

82E4B-E20-C25/C25/C25/C25概述

Potentiometer, Cermet, 2W, 1000000ohm, 10% +/-Tol, -150,150ppm/Cel,

82E4B-E20-C25/C25/C25/C25规格参数

参数名称	属性值
是否Rohs认证	不符合
Objectid	840339944
Reach Compliance Code	unknown
ECCN代码	EAR99
YTEOL	0
构造	Square
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	Panel Mount
封装宽度	46.36 mm
额定功率耗散 (P)	2 W
电阻	1000000 Ω
电阻器类型	POTENTIOMETER
旋转角	225 deg
系列	82
技术	CERMET
温度系数	150 ppm/°C
容差	10%

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

音乐盒设计: 我想做个音乐盒，有没有直接生成音符编码软件呀？就是我把一首写进去，有没有直接生成音符？有这方面资料，望各位发到：leiribo_5202001@163.com.谢谢！...; 卖蛋筒单片机

入行十多年的电子工程师对研发工作的一点感悟 V1.1: 我对研发工作的一点感悟 V1.1 一、现有状况分析不觉新人来到我们研发已近一年，这一年里，同一批人员，有的已经很快适应了环境，经过自己的努力和付出，能为研发工作独挡一面，成为某一方面 ......; eeleader 工作这点儿事

怎样控制相位噪声: 本人最近作一个VCO，想请教大家一些减少相位噪声的方法...; linda_xia 模拟电子

缸内直喷高压共轨喷油器驱动: 想知道这个驱动电路，是直接用驱动芯片做的还是自己搭建，如果是用驱动芯，本人找到了飞思卡尔的MC33810这款芯片，可是网上资料不是很完整，不知道如何控制这个芯片去驱动喷油器，求大神指点迷 ......; kiroking 汽车电子

请问大家 mobile中怎么接收html数据包的内容？非常感谢，急急急！！！: 在下面的代码中： LRESULT CSTHtmlDialog::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) { switch(message) { case WM_NOTIFY: { NM_HTMLVIEW * pnmHTML = (NM_HTM ......; yangcheng 嵌入式系统

基于FSK调制的无线传输（1）: 不知道应该如何开始啊。自己上了两年大学了，也不算混日子过得，总之学到了一些知识，所以写个博文来记录一下。2011年全国电子设计大赛前，学校有两个月的集训，我们组选的是无线方面的题，所 ......; idiotwu DIY/开源硬件专区

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]
英伟达今天公布人形机器人“黑科技”

“你设置好日程提醒了吗？” 8月24日，英伟达机器人官方账号在社交平台上发布了一张黑色礼盒的照片，附着一张带着创始人黄仁勋签名、配文为“好好享受”的贺卡。此次预热的产品，是一款针对机器人的“新大脑”。两天前，英伟达便发布了预热视频，黄仁勋写下一张贺卡称：“好好享受你的新大脑吧！” 随后，一款人形机器人拿起礼盒上的贺卡，读了起来，这款机器人来自中国厂商傅利叶。 ...[详细]
家电设计——安全至关重要！

　　我们正进入人类能以更低廉价格拥有更多电子产品的新时代。电子产品已经成为我们生活的必需品。举例来说，普通消费者现在都拥有冰箱、洗衣机、咖啡机等。将分离式IC带来的智能特性集成到电器中，能够改进用户体验，提供电子控制、触摸用户界面和高级显示等功能。这些特性非常有用，而安全性也是消费者关注的重点。没有人希望电器构成安全威胁。　　目前许多家用电器都采用微控制器，如果微控制器出现问题，就可能发生...[详细]
“速度与激情“高清监控下双码流回放技术

今天的安防行业，已经进入所谓的大联网时代。许多企业特别是金融机构都已经建立了多级视频监控联网平台。利用遍布全国的网络，金融机构的总部可以随时调用各分支机构的监控录像。然而，在现实应用中，由于带宽的限制，许多企业在进行高清监控的情况下，就无法满足低网速下的远程调用需求。“速度与激情”在中国的安防行业似乎无法兼顾。鉴于这种情况，蓝色星际在国内率先推出了“双码流回放技术”，这种技术可实时导出高、低分辨...[详细]
塔克热系统在中国光博会隆重推出高性能光电应用中的最新主动制冷技术

能够为人工智能算力、智能感测和自动驾驶系统提供精确、高效的热管理 2025年8月25日，中国深圳 – 先进热管理领域的全球头部厂商塔克热系统（Tark Thermal Solutions）（前身为莱尔德热系统，Laird Thermal Systems）将于9月10 - 12日在深圳国际会展中心举行的第二十六届中国国际光电博览会（中国光博会，CIOE 2025...[详细]
萨里大学发明新型人工智能系统或将改变自动驾驶汽车在无GPS情况下的导航方式

据外媒报道，萨里大学（University of Surrey）的研究人员开发出一种无需依赖GPS即可在人口密集的城市地区精确定位设备位置的人工智能系统。该系统可将定位误差从734米缩小到22米以内，这对于自动驾驶汽车和救援车辆等技术的发展意义重大。图片来源：萨里大学在发表于《IEEE Robotics and Automation Letters》的论文中，研究人员介绍了PEn...[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]
超拟人Eva上车，吉利要把汽车变成具身智能生命体！

2025年的汽车行业，正在迎来一场彻底的智能化洗牌。吉利在AI座舱领域想要做出变革：今后吉利的产品线中，将不存在不具备AI能力的传统智能座舱。这是一次“先破后立”。如何做到？吉利给出的答案是“全域AI”，并以此搭建了行业首个五层原生AI座舱架构。在这个架构中，硬件不再只是算力的堆砌，而是与大模型、情感计算、智能体生态深度融合，最终形成一个会思考、能理解、可陪伴的具身智能生命体。...[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]
单片机开发过程中遇到的关于串口的若干问题

最近做了一个项目，涉及到了串口，本来以为像串口这种经常使用的通讯方式，开发起来应该是很简单的，不说易如反掌，至少也不应该在一个问题上卡壳太久。说到底还是自己经验不足，还得多多学习才是！该项目是使用CubeMX生成的初始化代码，在配置串口的时候我格外小心，该配置的都配置了，但是生成代码后烧到单片机中，却发现串口接收数据出现问题，只能接收到一次数据，后面无论如何都接收不到了。但是我已经在串口初...[详细]
stm32内部Flash的读写操作

stm32的产品都有内置Flash，而且不同系列的产品其内置Flash的大小不尽相同，结构上也有差异，本文将对stm32f07x，stm32f10x，stm32f40x的内置Flash结构，以及如何进行读写操作做一个介绍。一、特性与构成 1.stm32f07x系列 2、stm32f10x系列　　　　　　　　　　3、stm32f40x系列　...[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]
因承诺额外投资：消息称美国政府不计划取得台积电、美光股权

8 月 22 日消息，《华尔街日报》当地时间 21 日报道称，美国新一届政府不计划取得半导体晶圆代工巨头台积电和三大存储原厂之一美光的股权，因为这两家此前获得《CHIPS》法案补贴的企业均承诺了在美额外投资。美国商务部长卢特尼克本周早些时候表示，美国政府计划取得英特尔约 10% 的股权，并考虑将这一“补贴转股”模式扩大到其它半导体企业上。不过一位不愿透露姓名的政府官员表示，只有那些未承诺追加投...[详细]
必看！R型单相控制变压器定制方法大揭秘

在了解单相控制变压器之前，让我们简单地了解一下什么是单相变压器？单相变压器是输入的电是单相电。与三相变压器相比，单相变压器有两条分火线和零线。三相变压器有三根火线和零线，单相变压器结构简单，体积小，损耗低，主要是铁损耗小，通常适用于负荷密度小的低压配电设备。一般来说，现代单相控制变压器的设计创新取得了很大的进展，单相控制变压器具有能耗小、体积小、接线安全可靠等优点。目前单相控制变压器常用于...[详细]
择用符合自己逆变电源方法

市场上的逆变器电源产品,大体可分两种,一种是正弦波逆变器,一种是方波逆变器,有些工程师也喜欢把纯正弦波逆变器的另分一类,那就是正弦波,纯正弦波,方波。 1.正弦波,它输出的波形就如同我们用的市电一样的波,但它输出的波形要比市电的好,所以这种产品的对于所有的用电设备都合适.但它的价格较高,一般300W的就卖到800多元.一般用天高精密设备,探测,研发,军事等地方多.而对于家电,我们也不必用哪么高要...[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