datasheet
电子工程世界电子工程世界电子工程世界
Datasheet
型号

关键词

搜索
关键词

型号

搜索
Datasheet> 器件分类 > 无源元件> 电阻器> USR4-402049R900D1%
PDF数据手册
文档预览

USR4-402049R900D1%

产品描述Fixed Resistor, Metal Foil, 2.5W, 49.9ohm, 1% +/-Tol, -5,5ppm/Cel,
产品类别无源元件    电阻器   
文件大小185KB，共3页
制造商Vishay(威世)
官网地址http://www.vishay.com
标准
下载文档 详细参数 选型对比 全文预览

USR4-402049R900D1%概述

Fixed Resistor, Metal Foil, 2.5W, 49.9ohm, 1% +/-Tol, -5,5ppm/Cel,

USR4-402049R900D1%规格参数

参数名称属性值
是否Rohs认证符合
厂商名称Vishay(威世)
Reach Compliance Codecompli
ECCN代码EAR99
构造Rectangul
引线直径0.8 mm
引线长度25.4 mm
端子数量2
最高工作温度155 °C
最低工作温度-55 °C
封装高度20 mm
封装长度40 mm
封装形状RECTANGULAR PACKAGE
封装形式PCB Mou
封装宽度7 mm
额定功率耗散 (P)2.5 W
电阻49.9 Ω
电阻器类型FIXED RESISTOR
系列USR4-4020
技术METAL FOIL
温度系数-5,5 ppm/°C
容差1%

USR4-402049R900D1%文档预览

USR UNR 4-4020
Powertron
FEATURES
•
•
•
•
•
Resistances from 0.05Ohm to 500Ohms
Power Rating to 50Watt
Resistance Tolerances to ±0.01%
TCR to ±1ppm/K
Load Stability to 0.01%
TABLE 1—SPECIFICATIONS
TYPE
Resistance Range
other resistance values upon request
power rating depending on resistance value
Free air 70°C
Power Rating
With heatsink
Tolerances
from 0.05 Ohms
from 10.0 Ohms
from 50.0 Ohms
Thermal Resistance
Stability (1000h)
Temperature Coefficient
Voltage Proof
Maximum Current
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
Max. Torque
Notes
USR 4-4020
0.05 to 100 Ohms
2.5W
30W
2.5W
50W
UNR 4-4020
0.1% / 0.25% / 0.5% / 1%
0.05% / 0.1% / 0.25% / 0.5% / 1%
0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
3.6 K/W
2.2 K/W
0.01%
max. ±5ppm/K (-55 to 155°C)
typ. ±3ppm/K (-55 to 125°C)
upon request ±1ppm/K (0 to 60°C)
750 VDC
15A
< 0.1µV/K
-55 to 155°C
NiCr-Foil
Al
2
O
3
Epoxy + Al-heatsink
Cu / tinned
4 (standard contact D)
1.0 Nm
Specially designed for ap-
plications with fast changing
electrical load
AlN
ORDERING INFORMATION
Part Number - Resistance - Contact - Tolerance - TCR (if not standard)
USR 4-4020 10R000 D 0.5%
Document No.: 64239
Revision: 14-01-2014
For technical questions,
contact
powertron@vishaypg.com
www.powertron.de
1
USR UNR 4-4020
Powertron
FIGURE 1—TEMPERATURE COEFFICIENT
200
100
0
∆R/R
(ppm)
-100
-200
-300
-400
-500
-600
-700
-75
-50
-25
0
25
50
Temperature (°C)
75
100
125
Nominal Spread
±2.3ppm/K
150
Nominal
∆R/R
Nominal Spread
±2.3ppm/K
FIGURE 2—DERATING
Power Rating Notes -
120
100
80
60
40
20
0
25
50
85
100
115
130
145
155
The U-Series Resistors must be attached to a suitable heatsink.
The maximum internal resistor temperature is 155°C.
To specify an appropriate heatsink use the following formula :
Power (% from
nominal power)
R
qH
= T
MAX
- ( P x R
qR
) - T
A
P
Where:
R
qH
= Thermal Resistance of Heatsink ( K/W )
R
qR
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Temperature of the backplate(°C)
FIGURE 3—DIMENSIONS
in mm (inches)
Dimension
A
±2.0 (±0.079)
B
±0.3 (±0.012)
C
±0.2 (±0.008)
D
±0.2 (±0.008)
E
±0.2 (±0.008)
F
±0.2 (±0.008)
G
±0.1 (±0.004)
H
±0.1 (±0.004)
I
±0.1 (±0.004)
J
±0.2 (±0.008)
K
±0.1 (±0.004)
L
±0.1 (±0.004)
M
±0.1 (±0.004)
45.40 (1.79)
40.00 (1.57)
20.00 (0.79)
10.00 (0.39)
30.00 (1.18)
20.00 (0.79)
Ø3.80 (Ø0.15)
Ø0.8 (Ø0.031)
5.08 (0.20)
15.24 (0.60)
3.00 (0.12)
7.00 (0.28)
4.00 (0.16)
www.powertron.de
2
For technical questions,
contact
powertron@vishaypg.com
Document No.: 64239
Revision: 14-01-2014
Legal Disclaimer Notice
Vishay Precision Group, Inc.
Disclaimer
ALL PRODUCTS, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Vishay Precision Group, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “VPG”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in
any other disclosure relating to any product.
The product specifications do not expand or otherwise modify VPG’s terms and conditions of purchase, including but
not limited to, the warranty expressed therein.
VPG makes no warranty, representation or guarantee other than as set forth in the terms and conditions of purchase.
To the maximum extent permitted by applicable law, VPG disclaims (i) any and all liability arising out of the
application or use of any product, (ii) any and all liability, including without limitation special, consequential or
incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular purpose,
non-infringement and merchantability.
Information provided in datasheets and/or specifications may vary from actual results in different applications and
performance may vary over time. Statements regarding the suitability of products for certain types of applications
are based on VPG’s knowledge of typical requirements that are often placed on VPG products. It is the customer’s
responsibility to validate that a particular product with the properties described in the product specification is suitable for
use in a particular application. You should ensure you have the current version of the relevant information by contacting
VPG prior to performing installation or use of the product, such as on our website at vpgsensors.com.
No license, express, implied, or otherwise, to any intellectual property rights is granted by this document, or by any
conduct of VPG.
The products shown herein are not designed for use in life-saving or life-sustaining applications unless otherwise
expressly indicated. Customers using or selling VPG products not expressly indicated for use in such applications do
so entirely at their own risk and agree to fully indemnify VPG for any damages arising or resulting from such use or sale.
Please contact authorized VPG personnel to obtain written terms and conditions regarding products designed for such
applications.
Product names and markings noted herein may be trademarks of their respective owners.
Copyright Vishay Precision Group, Inc., 2014. All rights reserved.
Document No.: 63999
Revision: 15-Jul-2014
www.vpgsensors.com
1
查看更多（仅显示前5页内容，查看全部内容请下载文档。）>

USR4-402049R900D1%相似产品对比

USR4-402049R900D1% USR4-402047R500D1% UNR4-402045R300D1% UNR4-402046R400D1% UNR4-402049R900D1% USR4-402045R300D1% UNR4-402048R700D1% USR4-402048R700D1%
描述 Fixed Resistor, Metal Foil, 2.5W, 49.9ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 47.5ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 45.3ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 46.4ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 49.9ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 45.3ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 48.7ohm, 1% +/-Tol, -5,5ppm/Cel, Fixed Resistor, Metal Foil, 2.5W, 48.7ohm, 1% +/-Tol, -5,5ppm/Cel,
是否Rohs认证 符合 符合 符合 符合 符合 符合 符合 符合
厂商名称 Vishay(威世) Vishay(威世) Vishay(威世) Vishay(威世) Vishay(威世) Vishay(威世) Vishay(威世) Vishay(威世)
Reach Compliance Code compli compliant compli compliant compliant compliant compli compli
构造 Rectangul Rectangular Rectangul Rectangular Rectangular Rectangular Rectangul Rectangul
引线直径 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm 0.8 mm
引线长度 25.4 mm 25.4 mm 25.4 mm 25.4 mm 25.4 mm 25.4 mm 25.4 mm 25.4 mm
端子数量 2 2 2 2 2 2 2 2
最高工作温度 155 °C 155 °C 155 °C 155 °C 155 °C 155 °C 155 °C 155 °C
最低工作温度 -55 °C -55 °C -55 °C -55 °C -55 °C -55 °C -55 °C -55 °C
封装高度 20 mm 20 mm 20 mm 20 mm 20 mm 20 mm 20 mm 20 mm
封装长度 40 mm 40 mm 40 mm 40 mm 40 mm 40 mm 40 mm 40 mm
封装形状 RECTANGULAR PACKAGE RECTANGULAR PACKAGE RECTANGULAR PACKAGE RECTANGULAR PACKAGE RECTANGULAR PACKAGE RECTANGULAR PACKAGE RECTANGULAR PACKAGE RECTANGULAR PACKAGE
封装形式 PCB Mou PCB Mount PCB Mou PCB Mount PCB Mount PCB Mount PCB Mou PCB Mou
封装宽度 7 mm 7 mm 7 mm 7 mm 7 mm 7 mm 7 mm 7 mm
额定功率耗散 (P) 2.5 W 2.5 W 2.5 W 2.5 W 2.5 W 2.5 W 2.5 W 2.5 W
电阻 49.9 Ω 47.5 Ω 45.3 Ω 46.4 Ω 49.9 Ω 45.3 Ω 48.7 Ω 48.7 Ω
电阻器类型 FIXED RESISTOR FIXED RESISTOR FIXED RESISTOR FIXED RESISTOR FIXED RESISTOR FIXED RESISTOR FIXED RESISTOR FIXED RESISTOR
系列 USR4-4020 USR4-4020 UNR4-4020 UNR4-4020 UNR4-4020 USR4-4020 UNR4-4020 USR4-4020
技术 METAL FOIL METAL FOIL METAL FOIL METAL FOIL METAL FOIL METAL FOIL METAL FOIL METAL FOIL
温度系数 -5,5 ppm/°C -5,5 ppm/°C -5,5 ppm/°C -5,5 ppm/°C -5,5 ppm/°C -5,5 ppm/°C -5,5 ppm/°C -5,5 ppm/°C
容差 1% 1% 1% 1% 1% 1% 1% 1%
ECCN代码 EAR99 - - EAR99 EAR99 EAR99 EAR99 EAR99

推荐资源

采用SD3烟雾检测器的报警电路

由SSR构成的三相电机正／反转控制电路

晶闸管触发模板典型应用电路

采用晶闸管控制的充电电路图

非同步脉冲合成电路

晶体管电离报警电路

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

  1. T199019
  2. M55342K03B18A9CBS
  3. SFG2-302-HT10W
  4. 800-014-AANF6-7NS8D-72
  5. PHCR70201105CKT
  6. TMDM-C39SL001M5
  7. CRMA1206AF11M0GKEW
  8. 0402N180J101ST-A
  9. 15A
  10. C3963F-TP
  11. A2547WVA-15P-G15
  12. 1206W3F270MT5E

开源项目推荐更多

  1. 使用 ON Semiconductor 的 CMPWR150 的参考设计
  2. LTC1728ES5-1.8 单 5V 电源监视器的典型应用
  3. OP284EPZ 电阻与输入串联的典型应用将过压电流限制在安全值
  4. LTC1704BEGN 演示板，具有线性稳压器的 550kHz 同步降压
  5. AC164110，基于 44 引脚薄型四方扁平封装 (TQFP) PICmicro 微控制器单元的 44 引脚演示板
  6. 使用 Omron 的 S8VS-09024BES 的参考设计
  7. MIC2042-2YM 单通道、大电流、低电压、受保护配电开关的典型应用
  8. 用于手机的 3W、3-LED 高亮度 LED 驱动器
  9. AD8505ARJZ-R7 脉搏血氧计红色和红外电流源作为电压基准器件的缓冲器的典型应用电路
  10. ICE1PCS01 独立功率因数校正 (PFC) 控制器在连续导通模式 (CCM) 下的典型应用

热门活动更多

  1. 【有奖直播】TI 工业自动化与机器人功能安全解决方案线上研讨会
  2. 是德科技重磅新品发布会｜新一代无线测试利器VXT：开启 RF 与模拟 IQ 全链路测试
  3. 有奖直播 | 瑞萨 RA8T2 EtherCAT 双轴伺服控制方案
  4. 你晒单我买单2026第1期报名中，DigiKey得捷带您畅享好物！
  5. 免费申请《一本书讲透汽车功能安全：标准详解与应用实践》，挑战《ISO26262标准》共读，赢好礼
  6. 装备焕新月：e络盟Multicomp Pro系列产品，小投入，大升级 ―― 装备焕新惊喜体验
  7. MPS 机器人模块设计大赛报名重磅开启，锻造硬实力，让想法照进现实！
  8. 有奖直播：ADI BMS 硬件和软件设计指南
  10. 免费申请：红外定位摄像头SEN0158

热门文章更多

  1. STM32F103单片机使用ULN2003驱动步进电机
  2. 首款无挖孔骁龙8旗舰！联想拯救者Y90相机居中
  3. 泰克提供业界首创的 PCIe 6.0 测试解决方案
  4. 手机厂商抛弃TOF后，索尼自寻破局法
  5. 激光雷达又开辟新赛道，新产品能杜绝路口和泊车中的事故？

技术资料推荐更多

  1. 图解振荡调制解调电路
  2. 指令系统及编程 ppt
  3. 飞思卡尔XGATE软件数据库
  4. 卫星ATM宽带网络差错控制技术
  5. UC1842A,UC1843A,UC1844A,UC1845
  6. 长虹G1430彩电电路图
  7. VMX300-E企业级视频管理系统产品规格
  8. 传输基本知识
  9. 避开无源元件的陷阱
  10. 机器人语音控制系统方案

 
EEWorld订阅号

 
EEWorld服务号

 
汽车开发圈

 
机器人开发圈

About Us 关于我们 客户服务 联系方式 器件索引 网站地图 最新更新 手机版

站点相关： 大学堂 TI培训 Datasheet 电子工程 索引文件: 1747  2869  1415  1813  1524  36  58  29  37  31 

器件索引   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

北京市海淀区中关村大街18号B座15层1530室 电话:(010)82350740 邮编：100190

电子工程世界版权所有 京B2-20211791 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号 Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved