Datasheet> 器件分类 > 无源元件> 电阻器> 85J4A-C20-G25/R55

文档预览

85J4A-C20-G25/R55: 产品描述Potentiometer, Conductive Plastic, 1W, 1000000ohm, 20% +/-Tol, -1000,1000ppm/Cel,; 产品类别无源元件电阻器; 文件大小363KB，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

85J4A-C20-G25/R55概述

Potentiometer, Conductive Plastic, 1W, 1000000ohm, 20% +/-Tol, -1000,1000ppm/Cel,

85J4A-C20-G25/R55规格参数

参数名称	属性值
是否Rohs认证	No
Is Samacsys	N
YTEOL	0
Objectid	758410082
Reach Compliance Code	unknown
构造	Square
端子数量	16
旋转角	225 deg
额定功率耗散 (P)	1 W
电阻	1000000 Ω
电阻器类型	POTENTIOMETER
技术	CONDUCTIVE PLASTIC
温度系数	1000 ppm/°C
容差	20%
安装特点	PANEL MOUNT
封装形式	Panel Mount
最高工作温度	125 °C
最低工作温度	-40 °C
封装宽度	55.89 mm
封装高度	18.42 mm
封装长度	15.88 mm
表面贴装	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

■

RoHS compliant versions available*

for “on-off” function control

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.

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

Cortex-M0+, 到底“+”了什么（有视频，有中文文档）: 也许大家已经发现了，飞思卡尔Kinetis L系列采用的内核是Cortex-M0+,而不是Cortex-M0。这个小小的加号到底增加了什么呢？小小视频讲的一清二楚。 http://player.youku.com/player.php/sid/XN ......; qinkaiabc NXP MCU

FPGA和DSP的学习: 今年要毕业了，参加了考研。考心仪的大学是没有机会了。但有机会去深圳大学学习（可能性还是有的，因为上线还是可以的吧）。如果去深圳大学的话，应该学习光学成像，这个方向和医疗电子很有 ......; HJ1219 嵌入式系统

【设计工具】使用 EMIF 将 Xilinx FPGA 与 TI DSP 平台接口应用指南: 目录： 82069 82070...; GONGHCU FPGA/CPLD

【转载】学好单片机不得不看的十篇文章: 1——向51单片机说再见！2——学什么单片机最有前途？3——学单片机前，你需要掌握的一些预备知识4——C 语言竟是这样调用硬件的5——以前都搞错了，单片机C语言程序该这样写！6——我们老师是 ......; tiankai001 机器人开发

【nRF52840 DK测评】Bluetooth Mesh测试: ## 内容概要本文首先对bluetooth mesh概念进行了简单的介绍，然后使用开发板进行了蓝牙mesh的功能演示。 ---- ## 前言相信大家都听说过蓝牙mesh。蓝牙联盟于去年发布了蓝牙mesh的标准， ......; jj1989 无线连接

帮个忙: 本人有个毕业设计，由于时间太紧，想请个高手帮个忙，设计个公交报站系统或是出租车计价器（显示里程数和价钱，起价5元，超过2公里按1公里1.4元计，半公里按0.7元计）都要求用51系列的芯片来 ......; xiaoxiao20000 单片机

stm32学习笔记之串口通信

　　在基础实验成功的基础上，对串口的调试方法进行实践。硬件代码顺利完成之后，对日后调试需要用到的printf重定义进行调试，固定在自己的库函数中。　　b) 初始化函数定义：　　void USART_Configuration(void); //定义串口初始化函数　　c) 初始化函数调用：　　void UART_Configuration(void); //串口初始化函数调用　　初始化代...[详细]
工业机械异常检测

您怎么知道一台机器是否在正常运行？问题的回答是：通过利用深度学习来检测工业机器的常规振动数据中的异常情况。异常检测有很多用途，而尤其在预测性维护中特别有用。这个深度学习的例子讲的是基于双向长短期记忆网络（biLSTM）的自动编码器。虽然这个词很拗口，但它仅表示训练网络来重构“正常”数据。这样，当我们给算法提供一些看起来不同的数据时，重构错误会提示您机器可能需要维护。当您所拥有的数据均为“正...[详细]
汽车电子锁屏蔽器到底有多可怕

干扰器是一种信号屏蔽器，主要是由一块芯片和一个无线电发射装置组成。当车主按下遥控器锁门键时，干扰器通过发射与汽车遥控器相同的频率来干扰电子锁接收遥控器信号，使汽车服务器得不到锁门的命令，车主锁门时，虽然也会听到“咔嗒”的声音，但车门并没有真正锁上。待车主误认为车门已锁(其实车门未锁)离开后，嫌疑人将车门打开实施盗窃在过去的几年里，有上百起案件报告了手提包，钱包，公文包和行李被盗，上述所有情...[详细]
新能源汽车的不稳定因素目前都有哪些

随着汽车的逐渐增多，环境压力也逐渐变得越来越大。也是这个时候，有人说新能源汽车节能环保，和传统用油的汽车有很大不同，这着实吸引了一大批受众。那么新能源到底能不能买呢？这个问题其实是非常困扰消费者的。如果你在北上广一线城市的话，新能源汽车是没有什么大问题的。毕竟现在的大环境下，大城市还是非常主要节能的，而新能源车牌也确实是一个非常有诱惑力的标签。但如果你所在的城市限行，上牌不需要摇号等，还是...[详细]
电池工厂投产，市场未到：BlueOval SK面临需求落差

2025年夏天，福特与SK On合资的BlueOval SK在肯塔基的首座电池工厂正式投产。按照最初的设想，这里将是福特电动化战略的心脏，承载着F-150 Lightning和E-Transit的续航升级，也象征着美国电池产业链的“回流”。但现实远不如蓝图乐观：工厂的产能利用率不足一半，原计划的岗位缩减近千个，市场对电动车的需求放缓，补贴与政策红利也在逐渐收窄。在这座工厂开出的...[详细]
新能源车保值率如何破“腰斩”困局？

今年以来，价格战有增不减，新车此起彼伏，零公里二手车成为舆论焦点，行业内卷被官方提上休整日程……这些因素共同影响了新能源汽车今年上半年保值表现。根据中国汽车流通协会数据，2025年1至7月，三年车龄的新能源汽车保值率呈现缓慢下滑趋势。整体来看，插电式混合动力车型三年保值率略高于纯电动车型，今年7月，插电式混合动力车型三年保值率为44.1%，纯电动车型则为44.8%。相比之下，传统...[详细]
stm32看门狗详细解答，看了觉得一下子明白了很多

　　一、独立看门狗　　STM32 的独立看门狗由内部专门的 40Khz 低速时钟驱动，即使主时钟发生故障，它也仍然有效。　　看门狗的原理：单片机系统在外界的干扰下会出现程序跑飞的现象导致出现死循环，看门狗电路就是为了避免这种情况的发生。看门狗的作用就是在一定时间内(通过定时计数器实现)没有接收喂狗信号(表示　　MCU 已经挂了)，便实现处理器的自动复位重启(发送复位信号) 。　　在键值寄...[详细]
无人驾驶的基本框架你了解吗

将无人车理解为机器人并且使用机器人开发的思维处理无人车系统是目前工业界的共识，但也不乏一些单纯使用人工智能或者是智能体来完成无人驾驶的案例。其中基于深度学习的端到端无人驾驶和基于强化学习的驾驶智能体是目前的研究热点。无人驾驶系统的核心可以概述为三个部分：感知（Perception），规划（Planning）和控制（Control），这些部分的交互以及其与车辆硬件、其他车辆的交互可以用下图表...[详细]
纯电动汽车的双电机与单电机各自的特点是什么

对于电动汽车而言，最核心的部件之一就是电机。电源为电机提供电能，而电机的作用就是将这些电能转化为机械能，进而通过传动装置来驱动车轮前进，因此汽车的能量转换效率与电机的性能密不可分。而为了提升汽车性能，双电机模式也被应用到了电动汽车当中。那么相较于传统的单电机模式，双电机模式拥有着哪些优势，是否只是单电机的叠加呢？首先，目前的双电机驱动主要是有三种方式，第一种是两个功率相同的电机进行叠加，实...[详细]
汽车电子的关键是什么

车辆采用的电子系统IC复杂性逐渐提高，希望借由执行人工智能（AI）算法控制自驾功能，同时也需满足《道路车辆功能安全ISO 26262》标准（以下简称《ISO 26262》）要求。因此，IC设计公司也正快速采用完整性的测试解决方案，以便达到相关标准要求。确保车辆电子能稳定的作法之一就是在功能运转期间执行定期测试，也就是在逻辑与存储器利用内建自我测试（Built-in Self Test;BI...[详细]
电动汽车需要像燃油车一样进行提前热车吗

对于热车来说，最早是源于燃油车，热车可以让发动机能够更好的进入比较好的工作状态，确保发动机能够有好的润滑条件，这也成为了开车出门前大部分人都有“热车”的习惯。而对于电动汽车来说，没有发动机等油路系统，那么需要提前热车吗？根据电动汽车的构造来说，电动汽车是由三电等部件组成，根据电动汽车的使用环境来说，确定是否需要提前热车，电动汽车采用的是锂电池，根据锂电池的特性来说，在低温的时候会因为温度导...[详细]
linux shell数据重定向（输入重定向与输出重定向）详细分析

在了解重定向之前，我们先来看看linux 的文件描述符。 linux文件描述符：可以理解为linux跟踪打开文件，而分配的一个数字，这个数字有点类似c语言操作文件时候的句柄，通过句柄就可以实现文件的读写操作。用户可以自定义文件描述符范围是：3-num,这个最大数字，跟用户的：ulimit –n 定义数字有关系，不能超过最大值。 linux启动后，会默认打开3个文件描述符，分别是：标准输入s...[详细]
意法半导体发布 IFRS 2025半年财报

2025年8月21日，中国 – 服务多重电子应用领域、全球排名前列的半导体公司意法半导体(STMicroelectronics，简称ST) 在公司官网上公布了截至2025年6月28日为期六个月的IFRS 2025半年财报，并提交荷兰金融市场管理局 (AFM)报备。本公司的半年财报是按照国际财务报告准则 (IFRS-EU) 编制，在本公司网站和荷兰金融管理局 (AFM) 网站上均有发布。...[详细]
挑战 SK 海力士：消息称三星 HBM4 样品已通过英伟达测试

8 月 21 日消息，据韩媒 SEDaily 昨天报道，据半导体业界消息，三星上月提供给英伟达的 HBM4 样品已通过初期测试和质量测试，将在本月底进入“预生产”阶段。其中“预生产”（IT之家注：PP，Pre-Production）是指半导体芯片量产前实施的最终验证阶段，需要测试其与客户 GPU 产品的兼容性，以及在特定温度下能否满足高质量标准。 SEDaily 表示，HBM4 芯片将被应用在...[详细]
基于RealSense的坐姿检测技术

引言　　计算机的飞速普及，让人们将越来越多的工作放在计算机上去完成，各行各业，尤其是程序开发人员、文字工作者，在计算机上的工作时间越来越长，这种情况下不良的坐姿对颈肩腰椎都会产生很大影响，容易导致多种疾病的发生。青少年接触计算机的年龄越来越小，保持良好的坐姿对于青少年的成长发育以及保护视力都大有裨益。调查显示肩部腰部疾病的发病率越来越高，发病年龄越来越小，跟长期坐着工作有关，我们还发现有一些奇...[详细]

器件捷径: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

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