VPR221Z

更新时间： 2024-10-29 05:52:27

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
4页	114K
描述
Ultra High Precision Z-Foil Power Resistor in TO-220 Configuration with TCR of ± 0.05 ppm/°C,

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VPR221Z (Z-Foil)

Vishay Foil Resistors

Ultra High Precision Z-Foil Power Resistor in

TO-220 Configuration with TCR of 0ꢀ0ꢁ ꢂꢂpm/C,

PCR of 4 ꢂꢂpmW and Load Life Stability of 0ꢀ00ꢁ ꢃ (ꢁ0 ꢂꢂp)

FEATURES

• Temperature Coefficient of Resistance (TCR):

0.05 ppm/°C typical (0 °C to + 60 °C)

Pb-free

0.2 ppm/°C typical (- 55 °C to + 125 °C,

+ 25 °C Ref.) (see table 1)

Available

RoHS*

COMPLIANT

• Tolerance: to 0.01 %

• Power Coefficient “ΔR due to self heating”

4 ppm/W typical

• Rated Power: 8 W chassis mounted (MIL-PRF-39009)

• Load Life Stability: to 0.005 % at 25 °C for 2000 hours,

at 1.5 W

Any value at any tolerance available within resistance range

INTRODUCTION

• Resistance Range: 0.5 Ω to 500 Ω

• Electrostatic Discharge (ESD) above 25 000 V

• Short Time Overload ≤ 0.001 % (10 ppm)

• Non Inductive, Non Capacitive Design

• Rise Time: 1 ns without ringing

• Current Noise < - 40 dB

• Thermal EMF: 0.05 µV/°C typical

• Voltage Coefficient < 0.1 ppm/V

• Non Inductive: < 0.08 µH

The Z-Foil Technology provides a significant reduction of the

resistive component’s sensitivity to ambient temperature

variations (TCR) and applied power changes (PCR).

VPR221Z provides high rated power, excellent load life

stability , low Temperature Coefficient (TCR) and low Power

Coefficient (PCR) - all in one resistor.

0.05 ppm/°C

Absolute TCR removes error due to temperature gradients.

• Non Hot Spot Design

• Terminal Finishes available: Lead (Pb)-free

By taking advantage of the overall stability and reliability of

Vishay Bulk Metal^®Z-Foil resistors, designers can

significantly reduce circuit errors and greatly improve overall

circuit performances.

Tin/Lead Alloy

• Any value available within resistance range (e.g. 1K234)

• For better performances please contact us

APPLICATIONS

Model VPR221Z is a 4 lead kelvin connected device.

• Automatic Test Equipment (ATE)

• High Precision Instrumentation

• Electron Beam application

Our Application Engineering Department is available to

advise and make recommendations. For non-standard

technical requirements and special applications, please

• Current Sensing applications

• Pulse applications

• Military

I₁

E₁

E₂

I₂

• Power amplifier

• Power supplies

TABLE 1 - TCR AND TOLERANCE

TIGHTEST

RESISTANCE

TOLERANCE

RESISTANCE

RANGE (Ω)

TYPICAL TCR AND

MAXꢀ SPREAD¹⁾

FIGURE 1- POWER DERATING CURVE

- ꢁꢁ /C

100

0.5 to < 1

1 to < 10

0.05 %

0.02 %

0.01 %

0.2 ppm/°C 2.8 ppm/°C

0.2 ppm/°C 2.3 ppm/°C

0.2 ppm/°C 1.8 ppm/°C

7ꢁ

ꢁ0

2ꢁ

10 to 500

Notes

1. MIL-Range (- 55 °C to + 125 °C, + 25 °C Ref.)

Contact Applications Engineering for other available values

•

- 7ꢁ - ꢁ0 - 2ꢁ

2ꢁ

ꢁ0

7ꢁ 100 12ꢁ 1ꢁ0

Apbient Tepꢂerature (/C)

* Pb containing terminations are not RoHS compliant, exemptions may apply

Document Number: 63116

Revision: 16-Jul-07

For any questions, contact: foil@vishay.com

www.vishay.com

12 3 4

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