Datasheet > Z202T25K454VB

Z202T25K454VB

更新时间： 2024-11-15 06:01:47

品牌	Logo	应用领域
威世 - VISHAY		PC
页数	文件大小	规格书
4页	104K
描述
Ultra High Precision Z-Foil Miniature Resistor with TCR of ± 0.05 ppm/°C, PCR of 5 ppm at Rated Power and Tolerance to ± 0.01 %

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Z202T25K454VB 数据手册

Z202

Vishay Foil Resistors

Ultra High Precision Z-Foil Miniature Resistor with

TCR of 0ꢀ0ꢁ ꢂꢂpm/C, PCR of ꢁ ꢂꢂp at Rated Power

and Tolerance to 0ꢀ0ꢃ ꢄ

FEATURES

• Temperature coefficient of resistance (TCR):

074ꢁ -

ꢃ00R0ꢃ

Z202

0ꢀ0ꢃ

0.05 ppm/°C typical (0 °C to + 60 °C);

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

+ 25 °C ref.)

Pb-free

Available

RoHS*

• Tolerance: to 0.01 %

COMPLIANT

• Power coefficient of resistance (PCR) “ΔR due

to self heating”: 5 ppm at rated rower

• Electrostatic discharge (ESD) above 25 000 V

• Resistance range: 5 Ω to 30 kΩ

Any value at any tolerance available with resistance range

The Z202 is a miniaturized version of the now famous Z201. It is

made with a Bulk Metal^®Z-Foil element so it retains all of the

inherent performance of Z-Foil resistors.

(for higher or lower values, please contact us)

• Power rating: 0.25 W at + 70 °C; 0.125 W at + 125 °C

• Load life stability: 0.01 % maximum ΔR at + 70 °C at

Rated power for 2000 h

• Non inductive, non capacitive design

• Current noise: - 40 dB

• Thermal EMF: < 0.1 µV/°C

• Voltage coefficient: < 0.1 ppm/V

The Z-Foil technology provides a significant reduction of the

resistive component’s sensitivity to ambient temperature

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

Designers can now guarantee a high degree of stability and

accuracy in fixed-resistor applications using solutions based

on Vishay’s revolutionary Z-Foil technology.

• Non inductive: < 0.08 µH

• Non hot spot design

• Maximum working voltage: 250 V

• Terminal finishes available: lead (Pb)-free

Our Application Engineering Department is available to

advise and to make recommendations. For non-standard

technical requirements and special applications, please

tin/lead alloy

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

• Prototype samples available from 48 h. For more

information, please contact foil@vishay.com

• For better performances, please see Z201 datasheet

FIGURE 1 - IMPRINTING AND DIMENSIONS

FIGURE 2 - POWER DERATING CURVE

Front View

Rear View

- 55 °C

+ 70 °C

200 %

175 %

150 %

125 %

100 %

75 %

50 %

25 %

Date Code

07 4ꢁ

Year Week

For Lead (Pb)-free Oꢂtion

Double Rated Power

Rated Power

Resistance

Value Code

074ꢁ -

ꢃ00R0ꢃ

0ꢀ0ꢃ %

Tolerance

Z202

Lead Material

#22 AWG (0ꢀ02ꢁ Diaꢀ)

Solder Coated Coꢂꢂer

- 75 - 50 - 25

+ 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200

Apbient Tepꢂerature (/C)

DIMENSIONS

INCHES

0.250 0.010

0.125 0.010

0.020 0.010

0.750 minimum

0.125 0.005

6.35 0.25

TABLE 1 - TOLERANCE AND TCR VERSUS

6.35 0.25

3.18 0.25

TYPICAL TCR AND

STANDARD

TOLERANCE

ST:

LL:

LS:

VALUE

MAXIMUM SPREAD

- ꢁꢁ /C to + ꢃ2ꢁ /C (+ 2ꢁ /C Refꢀ)

0.51 0.25

to 30 k

0.01 %

0.02 %

0.05 %

0.1 %

0.2 1.8

0.2 2.8

0.2 4.8

0.2 6.8

19.05 minimum

3.18 0.13

to < 50

to < 20

Ω to < 10 Ω

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

Document Number: 63131

Revision: 13-Nov-07

For any questions, contact: foil@vishay.com

www.vishay.com

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