电子工程世界电子工程世界电子工程世界

关键词

搜索

型号

搜索

303139-226R00-DBL

产品描述Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412,
产品类别无源元件    电阻器   
文件大小2MB,共7页
制造商Vishay(威世)
官网地址http://www.vishay.com
下载文档 详细参数 全文预览

303139-226R00-DBL概述

Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412,

303139-226R00-DBL规格参数

参数名称属性值
是否Rohs认证不符合
Objectid285133278
Reach Compliance Codecompliant
Country Of OriginIsrael
ECCN代码EAR99
YTEOL10
构造Rectangular
JESD-609代码e0
端子数量2
最高工作温度175 °C
最低工作温度-55 °C
封装高度2.49 mm
封装长度5.99 mm
封装形状RECTANGULAR PACKAGE
封装形式SMT
封装宽度3.2 mm
包装方法Bulk
额定功率耗散 (P)0.25 W
参考标准MIL-PRF-55182
电阻226 Ω
电阻器类型FIXED RESISTOR
尺寸代码2412
技术METAL FOIL
温度系数0.2 ppm/°C
端子面层Tin/Lead (Sn/Pb)
容差0.5%
工作电压47 V

文档预览

下载PDF文档
303139, 303140
Models # 303139 and 303140 - Molded Surface Mount Space and Military
Grade Resistors SMRxDZ with Screen/Test Flow in Compliance with
EEE-INST-002, (Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55182
FEATURES
Temperature coefficient of resistance (TCR):
± 0.2 ppm°C typical (- 55 °C to + 125 °C, + 25 °C ref.)
Tolerance: to ± 0.02 %
Power coefficient of resistance (PCR)
“R due to self heating”: 5 ppm at rated power
Flexible terminations ensure minimal stress transference
from the PCB due to a difference in thermal coefficient of
expansions (TCE)
Electrostatic discharge (ESD): at least to 25 kV
Load life stability: ± 0.005 % (70 °C, 2000 h at rated power)
Resistance range: 5
to 40 k
Vishay Foil resistors are not restricted to standard values;
specific “as requested” values can be supplied at no extra
cost or delivery (e.g. 1K2345 vs. 1K)
Maximum power: to 600 mW at 70 °C
Non-inductive, non-capacitive design
Current noise: - 40 dB
Voltage coefficient: < 0.1 ppm/V
Non-inductive: < 0.08 µH
Non hot spot design
Terminal finish: tin/lead alloy
Matched sets with TCR tracking are available upon
request
For oriented performances please contact us
For prototype units, append a “U” to the model number
(example: 303139U). These units pass all tests per table 3
(page 4) with no destructive qualification testing required
(table 4, page 4). For more information, please contact
foil@vpgsensors.com
INTRODUCTION
The 303139, 303140 are ultra high precision molded surface
mountable resistors offering all the elements of precision;
including low TCR, tight tolerance, long term stability, low
noise, low thermal EMF, and non-measurable voltage
coefficient. One of the important parameters influencing
stability is the temperature coefficient of resistance (TCR).
Although the TCR of foil resistors is considered extremely
low, this characteristic has been further refined over the
years. These resistors utilize ultra high precision Bulk Metal
®
Z-Foil.
The Z-Foil technology provides a significant reduction of
the resistive element’s sensitivity to ambient temperature
variations (TCR) and to self heating when power is applied
(power coefficient).
Voltage division with tight tracking < 2 ppm/°C can be
achieved with 2
randomly
selected units even with a large
ratio between the two values.
Our application engineering department is available to
advise and make recommendations.
TABLE 1 - TOLERANCE AND TCR VS.
RESISTANCE VALUE
(- 55 °C to + 125 °C, + 25 °C ref.)
VALUE
250
to 40 k
50
to < 250
20
to < 50
10
to < 20
5
to < 10
ABSOLUTE
TOLERANCE
± 0.02 %
± 0.05 %
± 0.1 %
± 0.2 %
± 0.5 %
TYPICAL TCR AND
MAX. SPREAD
(ppm/°C)
± 0.2 ± 1.8
± 0.2 ± 1.8
± 0.2 ± 2.8
± 0.2 ± 4.8
± 0.2 ± 6.8
FIGURE 1 - POWER DERATING CURVE
200
175
Rated Power (%)
150
125
100
75
50
25
0
- 75
- 25
+ 25
+ 75
+ 125
Ambient Temperature (°C)
+ 175
- 55 °C
+ 70 °C
Document Number: 63165
Revision: 27-May-15
For any questions, contact
foil@vpgsensors.com
www.vishayfoilresistors.com
1
测试一款电池供电产品的电池焊盘两端之间有26K的电阻(此时是没有焊接电池!),...
测试一款电池供电产品的电池焊盘两端之间有26K的电阻(此时是没有焊接电池!),板子供电回路的内阻?这个是不是就是主控的VCC对GND的电阻?我看并联在上面的也就是主控的供电端!请问这个电阻 ......
QWE4562009 测试/测量
Mosfet这边一些参数有些不懂
这边Mosfet的驱动电路芯片IR2110,上面参数写的输出电流2A左右,这个是驱动电流吗?那输出电压10-20V,这样管子的输出功率就是IU,还是怎么算?那这个输出功率就是MOSFET工作所需要的功率? ...
西里古1992 模拟电子
请教
本帖最后由 paulhyde 于 2014-9-15 09:41 编辑 电子设计大赛做电源类的题除了准备模数、数模转换模块,单片机最小系统,按键显示以外还需要准备什么? ...
liu5013 电子竞赛
急求!!关于dsp28027的中断优先顺序
急求!!关于dsp28027的中断优先顺序...
huangyiqian1000 DSP 与 ARM 处理器
关于AT24C02B的程序问题
为什么我的显示总为零,大伙看看.以下是我的程序: #include "reg52.h" #include "absacc.h" #include "math.h" #define uchar unsigned char #define uint unsigned int #define dm XB ......
zcx027 嵌入式系统
wince 读写mmc设备问题,大牛帮忙。
我有个ca卡,mmc接口 winxp上,接个usb的读卡器,显示盘符H: 我用createfile("\\\\.\\H:",...); 可以正常操作,reset, read,write都正常。 write一个命令,可以read一串返回值, ......
chenjing1986 嵌入式系统

 
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: 479  389  2230  1841  2857  36  20  1  32  47 

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