Datasheet > UNR4-3825215OHMSD0.5%3PPM

UNR4-3825215OHMSD0.5%3PPM

更新时间： 2023-07-15 00:00:00

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
4页	895K
描述
Fixed Resistor, Metal Foil, 50W, 215ohm, 750V, 0.5% +/-Tol, -3,3ppm/Cel

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USR UNR 4-3425 3825 4020

Powertron

•ꢀ Resistances from 0.05Ohm to 500Ohms

•ꢀ Power Rating to 50Watt

•ꢀ Resistance Tolerances to ±0.01%

•ꢀ TCR to ±1ppm/K

•ꢀ Load Stability to 0.01%

SPECIFICATIONS

Type

USR 4-

3425 3825

USR 4-

4020

UNR 4-

3425 3825

UNR 4-

4020

Resistance Range

0.05 to 500 Ohms

0.05 to 400 Ohms

other resistance values upon request / power rating depending on resistance value

Power rating

free air 70°C

for 3825H

3 W

5 W

2.5 W

3 W

5 W

2.5 W

with heatsink

30 W

50 W

Thermal Resistance Rthj-c

3.5 K/W

3.6 K/W

2.1 K/W

2.2 K/W

Tolerances

from 0.05 Ohms

from 10.0 Ohms

from 50.0 Ohms

0.1% / 0.25% / 0.5% / 1%

0.05% / 0.1% / 0.25% / 0.5% / 1%

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

Stability

0.01%

Shelf Life Stability

25ppm / ∆R after 1 year

50ppm / ∆R after 3 year

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

max. Current

Thermal EMF

Operating Temperature Range

Resistor Material

Substrate

750 VDC

15 A

< 0.1µV/K

-55 to 155°C

NiCr-Foil

Al₂O₃

AlN

Housing

Epoxy + Al-heatsink

Connector Material

Terminals

Cu tinned

Max. Torque

1.0 Nm

Notes

Specially designed for applications with fast

changing electrical load

Ordering Information

Part Number - Resistance - Contact - Tolerance - TCR

USR 4-3825H 10Ohms D 0.5% 3ppm

Document Number: 64223

Revision: 20-09-10

For technical questions, contact: powertron@vishaypg.com

www.powertron.de

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