Datasheet > 303139-210R-B-B-T

303139-210R-B-B-T

更新时间： 2024-10-31 06:00:55

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
7页	502K
描述
Fixed Resistor, Metal Foil, 0.25W, 210ohm, 47V, 0.1% +/-Tol, -.2,.2ppm/Cel, 2412

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303139, 303140

Vishay Foil Resistors

Models # 303139 and 303140 - Molded Surface Mount Space and Military

Grade Resistors SMRxDZ with Screen/Test Flow in Compliance with

EEE-INST-002, (Tables 2A and 3A, Film/Foil, Level 1) and MIL-PRF-55182

FEATURES

• Temperature coefficient of resistance (TCR):

± 0.2 ppm°C typical (- 55 °C to + 125 °C, + 25 °C ref.)

• Tolerance: to ± 0.02 %

• Power coefficient of resistance (PCR)

“ΔR due to self heating”: 5 ppm at rated power

• Flexible terminations ensure minimal stress transference

from the PCB due to a difference in thermal coefficient of

expansions (TCE)

• Electrostatic discharge (ESD) up to 25 000 V

• Load life stability: ± 0.005 % (70 °C, 2000 h at rated power)

INTRODUCTION

• Resistance range: 5 Ω to 40 kΩ

The 303139, 303140 are ultra high precision molded surface

• Vishay Foil resistors are not restricted to standard values;

mountable resistors offering all the elements of precision;

specific “as requested” values can be supplied at no extra

including low TCR, tight tolerance, long term stability, low

cost or delivery (e.g. 1K2345 vs. 1K)

noise, low thermal EMF, and non-measurable voltage

• Maximum power: to 600 mW at 70 °C

coefficient. One of the important parameters influencing

stability is the temperature coefficient of resistance (TCR).

Although the TCR of foil resistors is considered extremely

low, this characteristic has been further refined over the

years. These resistors utilize ultra high precision Bulk Metal^®

Z-Foil.

• Non-inductive, non-capacitive design

• Current noise: - 40 dB

• Voltage coefficient: < 0.1 ppm/V

• Non-inductive: < 0.08 µH typical

• Non hot spot design

The Z-Foil technology provides a significant reduction of

the resistive element’s sensitivity to ambient temperature

variations (TCR) and to self heating when power is applied

(power coefficient).

• Terminal finish: tin/lead alloy

• Matched sets with TCR tracking are available upon

request

Voltage division with tight tracking < 2 ppm/°C can be

achieved with 2 randomly selected units even with a large

ratio between the two values.

• For oriented performances please contact us

•

For prototype units, append a “U” to the model number

(example: 303139U). These units pass all tests per table 3

(page 4) with no destructive qualification testing required

(table 4, page 4). For more information, please contact

foil@vishaypg.com

Our application engineering department is available to

advise and make recommendations.

TABLE 1 - TOLERANCE AND TCR VS.

RESISTANCE VALUE

FIGURE 1 - POWER DERATING CURVE

- 55 °C

+ 70 °C

(- 55 °C to + 125 °C, + 25 °C ref.)

200

175

150

125

100

TYPICAL TCR AND

MAX. SPREAD

(ppm/°C)

ABSOLUTE

TOLERANCE

VALUE

250 Ω to 40 kΩ

50 Ω to < 250 Ω

20 Ω to < 50 Ω

10 Ω to < 20 Ω

5 Ω to < 10 Ω

± 0.02 %

± 0.05 %

± 0.1 %

± 0.2 %

± 0.5 %

± 0.2 ± 1.8

± 0.2 ± 2.8

± 0.2 ± 4.8

± 0.2 ± 6.8

- 75

- 25

+ 25

+ 75

+ 125

+ 175

Ambient Temperature (°C)

Document Number: 63165

Revision: 27-Jul-10

For any questions, contact: foil@vishaypg.com

www.foilresistors.com

12 3 4 5 6 7

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与303139-210R-B-B-T相关器件

型号	品牌	获取价格	描述	数据表
303139-210R-E-B-L	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 210ohm, 47V, 0.2% +/-Tol, -.2,.2ppm/Cel, 2412
303139-21R-E-B-L	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 21ohm, 47V, 0.2% +/-Tol, -.2,.2ppm/Cel, 2412
303139-220R-D-B-L	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 220ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412
303139-221R-A-B-T	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 221ohm, 47V, 0.05% +/-Tol, -.2,.2ppm/Cel, 2412
303139-226R00-ABL	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.125W, 226ohm, 47V, 0.05% +/-Tol, 0.2ppm/Cel, Surface Mount,
303139-226R-A-B-L	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.05% +/-Tol, -.2,.2ppm/Cel, 2412
303139-226R-B-B-L	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.1% +/-Tol, -.2,.2ppm/Cel, 2412
303139-226R-B-B-T	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.1% +/-Tol, -.2,.2ppm/Cel, 2412
303139-226R-D-B-L	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412
303139-226R-D-B-T	VISHAY	获取价格	Fixed Resistor, Metal Foil, 0.25W, 226ohm, 47V, 0.5% +/-Tol, -.2,.2ppm/Cel, 2412

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