USR4-14142.8OHMS1%3PPM [VISHAY]

Fixed Resistor, Metal Foil, 25W, 2.8ohm, 1500V, 1% +/-Tol, -3,3ppm/Cel, 5555;


型号：	USR4-14142.8OHMS1%3PPM
厂家：	VISHAY
描述：	Fixed Resistor, Metal Foil, 25W, 2.8ohm, 1500V, 1% +/-Tol, -3,3ppm/Cel, 5555
文件：	总3页 (文件大小：811K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

USR 4-1414

Powertron

•ꢀ Resistances from 0.5Ohm to 100Ohms

•ꢀ Power Rating to 25Watt

•ꢀ Resistance Tolerances to ±0.01%

•ꢀ TCR to ±1ppm/K

•ꢀ Load Stability to 0.01%

SPECIFICATIONS

Type

USR 4-1414

Resistance Range

0.5 to 100 Ohms

Power rating

free air 70°C

with heatsink

0.8 W

25 W

Thermal Resistance Rthj-c

< 4.2 K/W

Tolerances

from 0.5 Ohms

from 1.0 Ohms

0.1% / 0.25% / 0.5% / 1%

0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%

Stability

0.01%

Temperature Coefﬁcient

max. ±5ppm/K (-55 to 155°C)

typ. ±3ppm/K (-55 to 125°C)

upon request ±1ppm/K (0 to 60°C)

Voltage Proof

1.5 kVDC

< 0.1µV/K

-55 to 155°C

NiCr-Foil

Thermal EMF

Operating Temperature Range

Resistor Material

Substrate

Al₂O₃

upon request: AlN

Housing

Plastic / Epoxy

Connector Material

Terminals

Cu tinned

Ordering Information

Part Number - Resistance - Tolerance - TCR

USR 4-1414 0.5Ohms 0.5% 1ppm

Document Number: 64220

Revision: 20-09-10

For technical questions, contact: powertron@vishaypg.com

www.powertron.de

USR 4-1414

Powertron

SPECIFICATIONS (continued)

Temperature Coefﬁcient

1500

1000

500

+5ppm/K

-5ppm/K

Nominal Spread

±2.3ppm/K

-500

-1000

-1500

Nominal DR/R

Nominal Spread

±2.3ppm/K

100

125

-50

-25

Temperature (°C)

Derating

without Heatsink

with Heatsink

120

100

120

100

85 100 115 130 145 155

Temperature of the backplate(°C)

Ambient Temperature (°C)

Dimensions

tol.

Dimension

94.00

14.00

4.50

(±mm)

inches

3.70

(±inches)

0.5

0.2

0.1

0.2

0.020

0.008

0.004

0.008

0.55

0.18

Ø0.80

6.30

Ø0.03

0.25

1.50

0.06

14.00

0.55

www.powertron.de

For technical questions, contact: powertron@vishaypg.com

Document Number: 64220

Revision: 20-09-10

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Vishay Precision Group

Disclaimer

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incompleteness contained herein or in any other disclosure relating to any product.

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purchase, including but not limited to, the warranty expressed therein.

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including without limitation special, consequential or incidental damages, and (iii) any and all implied

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properties described in the product speciﬁcation is suitable for use in a particular application.

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Document No.: 63999

Revision: 27-Apr-11

www.vishaypg.com

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