Datasheet > 126S503

126S503

更新时间： 2023-05-15 00:00:00

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
3页	43K
描述
RES,TAPPED,WIREWOUND,50K OHMS,5% +/-TOL,-50,50PPM TC,3737 CASE

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126S503 数据手册

Models 117^S, 126^S, 151^Sand 176^S

Vishay Techno

3/8" [9.52mm] Sq. Wirewound Trimmers

FEATURES

• Precious metal wiper.

• 1.0 watt to + 85°C.

• TCR ± 50PPM/°C.

• Solderable leads.

• Military quality at affordable prices.

APPLICATIONS

STANDARD RESISTANCE VALUES

Wirewound trimmers are particularly useful in those

applications where any combination of high power, low

temperature coefficient of resistance and/or excellent long

term life stability are important design considerations.

RESISTANCE*

(Ohms)

NOMINAL RESOLUTION

(%)

1.10

.85

.65

.51

.40

.45

.34

.27

.20

.16

.13

.12

.11

.10

ELECTRICAL SPECIFICATIONS

Electrical Travel: 22 ± 4 turns.

Resistance Range: 10 ohms to 10 kilohms. Extended

range available in non MIL-Spec product.

Resistance Tolerance: ± 5% standard. Closer tolerances

available.

Temperature Coefficient: (- 65°C to + 150°C) ± 50PPM/°C.

Power Rating: 1.0 watt at + 85°C derated to 0 watt at

+ 150°C. These specifications exceed MIL-Spec.

End Resistance: 1 ohm or 2%, whichever is greater.

Equivalent Noise Resistance (ENR): 100 ohms maximum.

Dielectric (DWV): 1000 VAC at atmospheric pressure.

These specifications exceed MIL-Spec.

100

200

500

10k

20k

25k

35k

50k

Insulation Resistance: >100,000 Megohms (500 VDC).

These specifications exceed MIL-Spec.

MECHANICAL SPECIFICATIONS

Operating Torque: 5 ounce inch maximum.

Rotation: Clutch stop, wiper idles.

*Other resistances available upon request.

Weight: 0.935 grams maximum.

CIRCUIT DIAGRAM

Resistive Element: Nickel chromium.

Rotational Life: 200 cycles minimum.

Terminal Strength: 2 pounds for 10 seconds.

ENVIRONMENTAL SPECIFICATIONS

Temperature Limits: - 65°C to + 150°C.

Sealing: Fully sealed case (non-hermetic).

DIMENSIONAL CONFIGURATIONS 3/8" [9.52mm] Square [Numbers in brackets indicate millimeters]

L Lead Style - 117^S

P Lead Style - 126^S

0.375 ± 0.005

[9.52 ± 0.127]

0.040 ± 0.010

[1.02 ± 0.254]

0.419 ± 0.010

0.023 ± 0.003

[.584 ± 0.076]

[10.64 ± 0.254]

0.075 ± 0.010

[1.90 ± 0.254]

Radius

0.055 ± 0.005

[1.40 ± 0.127]

0.375 ± 0.005

[9.52 ± 0.127]

0.313 ± 0.005

[7.95 ± 0.127]

0.117 ± 0.005

[2.97 ± 0.127]

0.100 ± 0.005

[2.54 ± 0.127]

0.380 ± 0.005

[9.65 ± 0.127]

0.023 ± 0.003

[.584 ± 0.076]

•

0.025 ± 0.003

•

[0.635 ± 0.076]

0.100 ± 0.005

[2.54 ± 0.127]

0.217 ± 0.005

[5.51 ± 0.127]

0.314 ± 0.005

[7.98 ± 0.127]

0.167 ± 0.005

[4.24 ± 0.127]

0.060 ± 0.005

[1.52 ± 0.127]

Dia.

0.023 ± 0.003

[.584 ± 0.076]

0.300 [7.62]

Min.

0.093 ± 0.005

[2.36 ± 0.127]

Dia.

0.150 ± 0.010

[3.81 ± 0.254]

#30 AWG leads, color coded

Teflon insulated

6" [152.40mm] minimum length

0.027 ± 0.002

[.686 ± 0.051]

Dia.

www.vishay.com

Document Number 68016

Revision 21-Dec-99

12 3

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