Datasheet > USR2-T220169OHMS0.01%3PPM

USR2-T220169OHMS0.01%3PPM

更新时间： 2023-01-02 22:59:42

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
4页	887K
描述
Fixed Resistor, Metal Foil, 6W, 169ohm, 1000V, 0.01% +/-Tol, -3,3ppm/Cel, 3918

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USR2-T220169OHMS0.01%3PPM 数据手册

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USR UNR USS UNS T220 T221

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

Power Rating Notes -

The U-Series Resistors must be attached to a suitable heat-

sink. The maximum internal resistor temperature is 155°C.

To specify an appropriate heatsink use the following formula :

120

100

R_qH= T_MAX- ( P x R_qR) - T_A

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 )

85 100 115 130 145 155

Temperature of the backplate(°C)

Dimensions

USS 2-T220 / UNS 2-T220

tol.

Dimension

12.70

10.16

0.76

(±mm)

0.2

0.1

0.2

0.1

inches

0.50

0.40

0.03

0.20

0.16

0.05

0.57

0.59

0.68

0.02

0.07

(±inches)

Dimension

12.10

11.16

18.33

5.08

inches

0.476

0.439

0.722

0.200

0.069

0.126

0.008

0.004

0.008

0.004

5.08

4.00

1.76

1.20

3.20

14.60

15.00

17.33

0.40

1.85

www.powertron.de

For technical questions, contact: powertron@vishaypg.com

Document Number: 64222

Revision: 20-09-10

123 4

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