Datasheet> 器件分类 > 无源元件> 电阻器> 85B2C-B20-D10/R73L

文档预览

85B2C-B20-D10/R73L: 产品描述Potentiometer, Conductive Plastic, 0.5W, 1000ohm, 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; 标准

下载文档详细参数全文预览

85B2C-B20-D10/R73L概述

Potentiometer, Conductive Plastic, 0.5W, 1000ohm, 20% +/-Tol, -1000,1000ppm/Cel,

85B2C-B20-D10/R73L规格参数

参数名称	属性值
是否Rohs认证	符合
Objectid	774049053
Reach Compliance Code	not_compliant
YTEOL	0
构造	Square
JESD-609代码	e3
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	18.42 mm
封装长度	15.88 mm
封装形式	PCB Mount
封装宽度	35.57 mm
额定功率耗散 (P)	0.5 W
电阻	1000 Ω
电阻器类型	POTENTIOMETER
旋转角	225 deg
系列	85(DOUBLE)
技术	CONDUCTIVE PLASTIC
温度系数	1000 ppm/°C
端子面层	Matte Tin (Sn)
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

永年QB-8,QB-8A多功能电子饮水器电路图

求助啊: 手上有一块老师的LPC1343的板子，课程设计老师要求做一个基于ARM cortex-m3的温度检测系统，板子连下载线都没有，我还不知道它是用什么下载的，现在只有一些单片机的基础，所以向用过LPC1343的 ......; 陈远明 NXP MCU

Flash芯片和霍尔开关型号推荐: 因项目需要，急需找到一款小封装、串行、8GB Flash芯片；400-500Hz的SOT-23封装、耐高温125摄氏度、极低功耗的霍尔开关。请问大家有没有什么推荐的元器件型号！谢谢！ ...; 燕园技术宅模拟电子

寻创业加盟: 方向是嵌入式视频产品，已有团队和市场，需底层/硬件精通的软件人员加盟。在深圳。有意发邮件 wyx999@gmail.com...; loveitboy 嵌入式系统

TI信号链精品博文集锦——看一个TI老工程师如何驯服精密放大器: 166374 自认还挺全面的,大家如果感兴趣可以看看:) ...; woshihuxiaolind 模拟电子

rs232: 我在用串口助手调控步进电机的时候，按照通信协议，写入远控请求指令“7E01FF0100000001E7”,发送后下位机应该会返回同样的字符串数据，但是试了很多次始终没有数据返回，波特率设置是对的 ......; 涛涛哥综合技术交流

关于hc-06蓝牙模块与51单片机通讯问题: 最近在网上买了一个蓝牙模块，型号是hc-06，想用此与单片机通讯，即通过发信号给蓝牙，然后经蓝牙的TX与RX与单片机TX与RX通讯。但是怎么调也调不好。说明书上写着蓝牙的用法与普通的串口用法一 ......; hjl240 51单片机

AI造车第一车企，造出全球首个AI座舱

如果说汽车的终极形态是硅基生命体，那么在智能驾驶领域，它已经逐渐具备了「老司机」的样貌；而在智能座舱领域，它同样需要像一个人，甚至像一个「老朋友」。这是 AI 类人化演进的必然结果。从 DeepSeek 到 Manus，大模型的突破不断释放出深度思考、逻辑推理和执行决策的能力。而这些能力，唯有在智能座舱这一超级应用场景中，才能得到充分落地与扩展。在吉利发布的 Flyme Aut...[详细]
吉利短刀电池产能领先，2027年目标70GWh

8月23日，吉利旗下吉曜通行宣布，公司已拥有行业最大的短刀电池先进产能，并在全国拥有8大生产基地。预计到2027年，吉曜通行将形成70GWh的产能规模。今年4月，吉利整合旗下电池业务成立“吉曜通行”，将原有的金砖电池、神盾短刀电池统一为神盾金砖电池品牌。神盾金砖电池超级混动系列拥有超安全、超快充、超倍率、超长寿命等技术优势，将在极氪、领克、银河等品牌搭载。 5月29日，吉曜通行在生态日活动上...[详细]
基于android的远程控制智能灯

　　当你正在开心地看NBA或者足球的时候，你老婆叫你去把卧室房间的灯关掉，你是否很郁闷，当然不怕老婆的除外。　　现在你们有救了，这款灯可以用android手机app 控制(本人太穷因此不会出Iphone版本) ，让看球的同时，点点手机的按钮就能够关闭的灯了。　　首先，我们先看下整体的架构：　　看看硬件实现，组成部分： arduino主板，W5100(联网)，继电器(5V光电驱动)，普通L...[详细]
浅谈液晶电视电磁兼容设计技术

液晶电视结构主要包括：液晶显示模块，电源模块，驱动模块(主要包括主驱动板和调谐器板)以及按键模块。一般液晶显示模块由生产厂商在生产前已经完成EMC的测试。这里主要介绍一下设计电源模块、驱动模块、按键模块,以及整机设计时应注意的电磁干扰问题。电磁兼容(EMC)是液晶电视设计中不可避免的重要问题。如果EMC设计不好，将会导致电视在播放的过程中出现水波纹以及频闪等问题，严重时将会导致无法收看。E...[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]
2025人形机器人和智能汽车协同发展分析报告

核心观点：汽车产业链与人形机器人产业具备硬件、软件、场景多方面协同优势，汽车产业链上下游企业从本体、传感器、执行器、材料多个环节赋能人形机器人，助力人形机器人迎来量产落地。汽车产业链与人形机器人产业具备协同优势汽车产业链与人形机器人产业具备硬件协同优势。传感器方面，智能汽车的多传感器融合在机器人领域实现技术复用；芯片方面，车规级智驾芯片的强算力与低功耗特性为机器人提供AI 算力支持；...[详细]
不可错过的stm32单片机直流电机驱动与测速详解

　　stm32直流电机驱动与测速　　说实话就现在的市场应用中stm32已经占到了绝对住到的地位，51已经成为过去式，32的功能更加强大，虽然相应的难度有所增加，但是依然阻止不了大家学习32的脚步，不说大话了这些大家都懂要不然也不会学习stm32的人那么多!!! 　　进入我们今天的主题，今天给大家介绍的是stm32中一个很小但是比较实用的stm32直流电机驱动与测速，话不多说先给大家上一段直流电...[详细]
单片机开发过程中使用结构体简化程序

首先，作为刚入行不久的新人，我在单片机开发这块并没有太多的经验，所以可能在写一些相关的文档的时候存在一些错误，希望大家多多包含！也希望各位不吝赐教，指点迷津！好记性不如烂笔头，之所以选择开通博客是因为我想把自己在工作和学习过程中碰到的一些问题以及疑惑记录下来，同时积极地定位问题的源头以及寻求解决方案，或许在碰到相同的问题时就能很快地解决。同时在博客上也可以学习到很多工程师长期积累的经验，分享自...[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]
智能手机发展趋势及设计中需要注意的问题

　　智能手机如今已成为人们必备的数码设备，以智能手机为中心日益繁多的应用，也在逐渐丰富着人们的生活。作为使用者，手机用户希望有更好的应用体验，更多的应用选择。从iPhone6、华为MATE7、三星GALAXY Note 4、S6及努比亚Z9等几款较新的机型可以看出，手机厂商在采用更高性能的处理器以提升整机性能的同时，也更加注重向用户提供新的应用体验。一些新的应用如健康及医疗相关的功能、移动支付、...[详细]
纯电动汽车的小电瓶老亏电的原因是什么

纯电动汽车在结构上面来说，有着动力电池等部件，但对于车来说除了动力电池以外还有个小电瓶，小电瓶对于电动汽车来说，给车辆的一些低压电器元件进行供电，甚至是需要为车辆在启动的过程当中提供启动能量，在使用的时候我们会发现，小电瓶蓄电池会存在亏电的现象？对于小电瓶的亏电来说怎么回事？如何避免呢？小电瓶老是亏电和我们的使用有关，一般来说纯电动汽车的小电瓶以12V的电瓶为主，而这样的电压需要为车辆的低...[详细]
电动汽车的快充技术会对电池组造成损伤吗

随着汽车电动化时代的到来，纯电动车型的保有量也已经越来越多了，但同时也有很多车主对于如何正确的保养纯电动车型并不是特别了解。而且在使用过程当中，有些车友还认为现在纯电动车型基本都实现了快充功能，频繁的使用快充是否会对电池的寿命造成影响呢？首先，我们需要先对纯电动车型的电池做一个了解。目前电动汽车所搭载的电池普遍都是锂电池和铅酸电池，不同的电池发电的机理有所不同，而且对于快充的敏感度也存在很...[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]
工艺的选择很重要，辊压机轴承位磨损现场修复的完整流程

在辊压机轴承位磨损的故障处理中，常见的办法一般有补焊工艺、热喷涂工艺、电刷镀工艺以及报废更换等，考虑到方便快捷因素，上述办法都受到拆装及运输成本的制约，修复时间较长，在对停机时间有要求的场合下不占优势。下面介绍的是一种在线快速修复辊压机轴头磨损的方法，可以在短时间内快速解决问题，为企业节省停机停产时间。现场情况说明某车间合肥院辊压机轴承运行期间出现轴承温度过高，螺栓断裂，停机拆卸后发现轴承...[详细]
ADI 2025三财季业绩超预期，工业业务复苏强劲，机器人是未来

ADI举行了 2025 财年第三季度财报电话会议。首席执行官兼董事会主席 Vincent T. Roche 与执行副总裁兼首席财务官 Richard C. Puccio 共同出席，就公司季度业绩、业务发展及未来展望进行了详细阐述。财务业绩强劲，多领域增长超预期第三季度财务数据：收入 28.8 亿美元，超预期上限，环比 + 9%，同比 + 25%。工业业务占 45%，环比...[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