CSR1225JTR470 datasheet, PDF - EEWORLD Datasheet

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CSR1225JTR470: DescriptionFixed Resistor, Metal Glaze/thick Film, 3W, 0.47ohm, 5% +/-Tol, 100ppm/Cel, Surface Mount, 1225, CHIP; CategoryPassive components The resistor; File Size171KB，6 Pages; ManufacturerSEI(Stackpole Electronics Inc.); Websitehttps://www.seielect.com/; Environmental Compliance

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CSR1225JTR470 Overview

Fixed Resistor, Metal Glaze/thick Film, 3W, 0.47ohm, 5% +/-Tol, 100ppm/Cel, Surface Mount, 1225, CHIP

CSR1225JTR470 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
package instruction	SMT, 1225
Reach Compliance Code	compliant
ECCN code	EAR99
structure	Rectangular
JESD-609 code	e3
Installation features	SURFACE MOUNT
Number of terminals	2
Maximum operating temperature	155 °C
Minimum operating temperature	-55 °C
Package height	0.9 mm
Package length	3.2 mm
Package shape	RECTANGULAR PACKAGE
Package form	SMT
Package width	6.45 mm
method of packing	TR, PLASTIC, 7 INCH
Rated power dissipation(P)	3 W
Rated temperature	70 °C
resistance	0.47 Ω
Resistor type	FIXED RESISTOR
size code	1225
surface mount	YES
technology	METAL GLAZE/THICK FILM
Temperature Coefficient	100 ppm/°C
Terminal surface	Matte Tin (Sn) - with Nickel (Ni) barrier
Terminal shape	WRAPAROUND
Tolerance	5%
Base Number Matches	1

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CSR/CSRN Series

Thick Film Current Sensing Resistor

Stackpole Electronics, Inc.

Resistive Product Solutions

Features:

•

0402 to 1225 sizes available

Power ratings to 3W

Low inductance – less than 0.2nH typically

RoHS compliant and halogen free

Non-standard resistance values available

0815, 2010 and 2512 sizes available with narrow

terminations (CSRN)

Electrical Specifications

Type / Code

CSR0402

CSR0603

CSR0805

CSR1206

Power Rating (Watts)

@ 70ºC

0.125W

0.25W

0.5W

Dielectric Withstanding

Voltage

200V

Resistance

Temperature

Coefficient

±200 ppm/ºC

±300 ppm/ºC

±200 ppm/ºC

±100 ppm/ºC

±600 ppm/ºC

±400 ppm/ºC

±300 ppm/ºC

±200 ppm/ºC

CSRN0815

200V

±300 ppm/ºC

±150 ppm/ºC

±300 ppm/ºC

CSR0830

CSR2010

CSRN2010

CSR2512

CSRN2512

(*)

(1)

Ohmic Range (Ω) and Tolerance

0.05 - 1

0.02 - 1

0.01 - 1

0.01 - 0.02

0.021 - 0.05

0.051 - 0.099

0.1 - 1

0.01 - 0.019

0.02 - 0.5

0.001 - 0.004

0.005 - 0.01

0.011 - 0.35

0.01 - 1

0.003 - 0.005

0.006 - 0.02

0.021 - 0.03

0.033 - 8

2%, 5%

CSR1210

0.5W

200V

±200 ppm/ºC

±150 ppm/ºC

±100 ppm/ºC

±250 ppm/ºC

±200 ppm/ºC

±300 ppm/ºC

±200 ppm/ºC

±150 ppm/ºC

±100 ppm/ºC

(1)

±200 ppm/ºC

CSR1225

200V

(*) AEC-Q200 Qualified

(1) Contact Factory for TCR below 50mOhm

Electrical Specifications – High Power

Type / Code

Power Rating (Watts)

@ 70ºC

0.2W

Dielectric Withstanding

Voltage

200V

Resistance

Temperature

Coefficient

±400 ppm/ºC

±300 ppm/ºC

±200 ppm/ºC

±600 ppm/ºC

±400 ppm/ºC

±300 ppm/ºC

±200 ppm/ºC

Ohmic Range (Ω) and Tolerance

1%, 2%, 5%

0.051 - 0.1

0.102 - 0.5

0.51 - 1

0.01 - 0.02

0.021 - 0.05

0.051 - 0.091

0.1 - 1

CSR0603…-HP

CSR1210…-HP

0.75W

200V

Please refer to the High Power Resistor Application Note (page 5) for more information on designing and implementing

high power resistor types.

Rev Date: 02/05/2018

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

CSR/CSRN Series

Thick Film Current Sensing 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°C for the CSS / CSSH series and 70°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 105°C. 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.

The 102°C heat rise shown here would indicate there will be additional thermal reduction techniques needed to keep

this part under 105°C 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°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, via 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 ≤ 50mΩ.

This should be taken into account when designing.

Rev Date: 02/05/2018

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

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