Datasheet> 器件分类 > 无源元件> 电阻器> BR50.04991%B

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BR50.04991%B: 产品描述RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0499ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT; 产品类别无源元件电阻器; 文件大小174KB，共3页; 制造商SEI(Stackpole Electronics Inc.); 官网地址https://www.seielect.com/; 标准

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BR50.04991%B概述

RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0499ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT

BR50.04991%B规格参数

参数名称	属性值
是否Rohs认证	符合
厂商名称	SEI(Stackpole Electronics Inc.)
包装说明	RADIAL LEADED, ROHS COMPLIANT
Reach Compliance Code	unknown
ECCN代码	EAR99
其他特性	FLAME PROOF, NON INDUCTIVE
JESD-609代码	e3
制造商序列号	BR
安装特点	THROUGH HOLE MOUNT
端子数量	2
封装形状	RECTANGULAR PACKAGE
包装方法	BULK
额定功率耗散 (P)	5 W
额定温度	85 °C
电阻	0.0499 Ω
电阻器类型	FIXED RESISTOR
表面贴装	NO
技术	METAL STRIP
端子面层	Matte Tin (Sn)
端子形状	WIRE
容差	1%

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BR Series

Bare Element Current Sense Resistor

Features:

•

Stackpole Electronics, Inc.

Resistive Product Solutions

1, 3 and 5 watts

±1%, ±2% or ±5% tolerance

Resistance wire TCR ±20ppm/ºC

Low inductance versions available for high frequency applications

All welded construction

Flameproof

Non-inductive (10 nH max)

Solderable copper leads (60/40)

High current handling to 70 amps

RoHS compliant / lead-free

Current sensing

Feedback

Low inductance

Surge and pulse

Applications:

Electrical Specifications

Type / Code

BR 1

BR 3

BR 5

Power Rating

(Watts) at 85ºC

Resistance Temperature

Coefficient (1)

±100ppm/ºC - ±20ppm/ºC

Ohmic Range (Ω) and Tolerance (1)

0.005 - 0.1

0.005 - 0.05

2%, 5%

0.005 - 0.1

0.005 - 0.05

(1) Contact factory for resistance values below 0.005Ω

Please refer to the High Power Resistor Application Note (page 3) for more information on designing and implementing

high power resistor types.

Mechanical Specifications

Type / Code

BR 1

BR 3

BR 5

0.45 + 0.04/-0.02

11.43 + 1.02/-0.508

0.6 + 0.04/-0.02

15.3 + 1.02/-0.508

0.8 + 0.04/-0.02

20.32 + 1.02/-0.508

0.2 ± 0.1

5.08 ± 2.54

0.6 Typ - 1 Max

15.3 Typ - 25.4 Max

0.6 Typ - 1 Max

15.3 Typ - 25.4 Max

0.125 ± 0.03

3.18 ± 0.762

0.125 ± 0.03

3.18 ± 0.762

0.125 ± 0.03

3.18 ± 0.762

0.065 ± 0.01/-0.005

1.65 ± 0.254/-0.127

0.065 ± 0.01/-0.005

1.65 ± 0.254/-0.127

0.065 ± 0.01/-0.005

1.65 ± 0.254/-0.127

0.04 ± 0.002

1.02 ± 0.051

0.04 ± 0.002

1.02 ± 0.051

0.04 ± 0.002

1.02 ± 0.051

Units

inches

Rev Date: 12/22/2010

This specification may be changed at any time without prior notice

Please confirm technical specifications before you order and/or use.

www.seielect.com

marketing@seielect.com

BR Series

Bare Element Current Sense Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

High Power Chip Resistors and Thermal Management

Stackpole has developed several surface mount resistor series in addition to our current sense resistors,

which have had higher power ratings than standard resistor chips. This has caused some uncertainty and

even confusion by users as to how to reliably use these resistors at the higher power ratings in their designs.

The data sheets for the RHC, RMCP, RNCP, CSR, CSRN, CSRF, CSS, and CSSH state that the rated

power assumes an ambient temperature of no more than 100 degrees C for the CSS / CSSH series and 70

degrees C for all other high power resistor series. In addition, IPC and UL best practices dictate that the

combined temperature on any resistor due to power dissipated and ambient air shall be no more than 105C.

At first glance this wouldn’t seem too difficult, however the graph below shows typical heat rise for the CSR

½ 100 milliohm at full rated power. The heat rise for the RMCP and RNCP would be similar. The RHC with

its unique materials, design, and processes would have less heat rise and therefore would be easier to

implement for any given customer.

CSR 1/2 100m Surface Temp Rise

120

Test equipment:

Chroma Programmable DC Power supply

YF-162 TYPE--K thermometer

100

102

℃ 60

0.10

0.13

0.17

Power Rating

0.25

0.50

0.75

The 102 degrees C heat rise shown here would indicate there will be additional thermal reduction techniques

needed to keep this part under 105C total hot spot temperature if this part is to be used at 0.75 watts of

power. However, this same part at the usual power rating for this size would have a heat rise of around 72

degrees C. This additional heat rise may be dealt with using wider conductor traces, larger solder pads and

land patterns under the solder mask, heavier copper in the conductors, vias through PCB, air movement, and

heat sinks, among many other techniques. Because of the variety of methods customers can use to lower

the effective heat rise of the circuit, resistor manufacturers simply specify power ratings with the limitations

on ambient air temperature and total hot spot temperatures and leave the details of how to best accomplish

this to the design engineers. Design guidelines for products in various market segments can vary widely so it

would be unnecessarily constraining for a resistor manufacturer to recommend the use of any of these

methods over another.

Note:

The final resistance value can be affected by the board layout and assembly process, especially the size of the

mounting pads and the amount of solder used. This is especially notable for resistance values

≤

50 mΩ.

This should be taken into account when designing.

Rev Date: 12/22/2010

This specification may be changed at any time without prior notice

Please confirm technical specifications before you order and/or use.

www.seielect.com

marketing@seielect.com

BR50.04991%B相似产品对比

	BR50.04991%B	BR50.051%B	BR50.055%B	BR50.052%B	BR50.04531%B	BR50.01621%B	BR50.025%B	BR50.02941%B	BR50.02321%B
描述	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0499ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.05ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 5%, 0.05ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 2%, 0.05ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0453ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0162ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 5%, 0.02ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0294ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT	RESISTOR, CURRENT SENSE, METAL STRIP, 5W, 1%, 0.0232ohm, THROUGH HOLE MOUNT, RADIAL LEADED, ROHS COMPLIANT
是否Rohs认证	符合	符合	符合	符合	符合	符合	符合	符合	符合
包装说明	RADIAL LEADED, ROHS COMPLIANT	,	,	,	,	RADIAL LEADED, ROHS COMPLIANT	RADIAL LEADED, ROHS COMPLIANT	RADIAL LEADED, ROHS COMPLIANT	RADIAL LEADED, ROHS COMPLIANT
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
ECCN代码	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
其他特性	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE	FLAME PROOF, NON INDUCTIVE
JESD-609代码	e3	e3	e3	e3	e3	e3	e3	e3	e3
制造商序列号	BR	BR	BR	BR	BR	BR	BR	BR	BR
安装特点	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT
端子数量	2	2	2	2	2	2	2	2	2
封装形状	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE
包装方法	BULK	BULK	BULK	BULK	BULK	BULK	BULK	BULK	BULK
额定功率耗散 (P)	5 W	5 W	5 W	5 W	5 W	5 W	5 W	5 W	5 W
额定温度	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
电阻	0.0499 Ω	0.05 Ω	0.05 Ω	0.05 Ω	0.0453 Ω	0.0162 Ω	0.02 Ω	0.0294 Ω	0.0232 Ω
电阻器类型	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR	FIXED RESISTOR
表面贴装	NO	NO	NO	NO	NO	NO	NO	NO	NO
技术	METAL STRIP	METAL STRIP	METAL STRIP	METAL STRIP	METAL STRIP	METAL STRIP	METAL STRIP	METAL STRIP	METAL STRIP
端子面层	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)	Matte Tin (Sn)
端子形状	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE
容差	1%	1%	5%	2%	1%	1%	5%	1%	1%

BR50.04991%B

BR50.04991%B概述

BR50.04991%B规格参数

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BR50.04991%B相似产品对比

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