012S-501--Datasheet/数据表在线中文翻译

14^S, 17^S, 18^S

Vishay Techno

www.vishay.com

Multi-Turn 1/4" (6.35 mm) Square Wirewound Trimmers

FEATURES

• Precious metal wiper

• 0.25 W to +85 °C

• TCR < 50 ppm/°C

• Solderable leads

APPLICATIONS

• Special configurations available

• Military quality at affordable prices

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.

ENVIRONMENTAL SPECIFICATIONS

Temperature limits: -65 °C to +175 °C

Sealing: fully sealed case (non-hermetic)

ELECTRICAL SPECIFICATIONS

Electrical travel

22 turns 4 turns

STANDARD RESISTANCE VALUES

10 Ω to 5 kΩ (extended range

available in non MIL-SPEC product)

RESISTANCE ⁽¹⁾

NOMINAL RESOLUTION

Resistance range

(Ω)

(%)

1.65

1.35

1.13

0.82

0.62

0.49

0.34

0.27

0.21

0.17

0.16

Resistance tolerance

5 ꢀ standard

50 ppm/°C

Temperature

coefficient

(-65 °C to +150 °C)

0.5 W at +85 °C derated to 0 W at

+150 °C, these specifications exceed

MIL-SPEC

100

200

500

Power rating

End resistance

1 Ω or 2 ꢀ, whichever is greater

Equivalent noise

resistance (ENR)

100 Ω maximum

1000 V_ACat atmospheric pressure,

these specifications exceed

MIL-SPEC

Dielectric (DWV)

10K

20K

25K

> 100 000 MΩ (500 V_DC), these

specifications exceed MIL-SPEC

Insulation resistance

Note

MECHANICAL SPECIFICATIONS

(1)

Other resistances available upon request

Operating torque: 3 oz.-inches maximum, 17^Sand 18^S,

5 oz.-inches maximum, 14^S

Rotation: clutch stop, wiper idles

Weight: 0.935 g maximum

CIRCUIT DIAGRAM

Resistive element: nickel chromium

Rotational life: 200 cycles minimum

Terminal strength: 2 lbs for 10 s

GLOBAL PART NUMBER INFORMATION

New Global Part Numbering: 14S500RB (preferred part number format)

GLOBAL MODEL

TYPE

RESISTANCE VALUE

PACKAGING

14 = side adjustment screw

17 = top adjustment screw

18 = side adjustment screw

/ = continuous rotation

S = clutch stop

R = decimal

K = thousand

100R = 100 Ω

5K00 = 5 kΩ

B = bulk

Historical Part Numbering: 14s501 (will continue to be accepted)

501

RESISTANCE VALUE

HISTORICAL MODEL

TYPE

Revision: 26-Jul-2021

Document Number: 68017

For technical questions, contact: sfer@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

14^S, 17^S, 18^S

Vishay Techno

www.vishay.com

DIMENSIONS 1/4" (6.35 mm) SQUARE in inches (millimeters)

W Lead Style - 17^S

X Lead Style - 18^S

0.030 0.010

(0.762 0.254ꢀ

0.160 0.010

(0.406 0.254ꢀ

0.045 0.005

(1.14 0.127ꢀ

0.038 0.005

(0.965 0.127ꢀ

0.020 0.003

(0.508 0.076ꢀ

0.260 0.005

(6.60 0.127ꢀ

0.020 0.003

0.100 0.005

(2.54 0.127ꢀ

(0.508 0.076ꢀ

0.045 0.005

(1.14 0.127ꢀ

0.211 0.005

5.36 0.127ꢀ

0.062 0.005

(

0.172 (4.37ꢀ

(1.57 0.127ꢀ

Min.

0.100 0.005

(2.54 0.127ꢀ

0.020 0.003

(0.508 0.076ꢀ

0.260 0.005

(6.60 0.127ꢀ

0.120 0.005

(3.05 0.127ꢀ

0.016 0.001

(0.406 0.025ꢀ

Dia.

0.020 0.003

(0.508 0.076ꢀ

1 2 3

0.211 0.005

(5.36 0.127ꢀ

0.030 0.010

(0.762 0.254ꢀ

0.172 (4.37ꢀ

Min.

0.016 0.001

(0.406 0.025ꢀ

Dia.

0.160 0.010

(4.06 0.254ꢀ

0.120 0.005

(3.05 0.127ꢀ

0.038 0.005

(0.965 0.127ꢀ

0.100 0.005

(2.54 0.127ꢀ

0.062 0.005

(1.57 0.127ꢀ

Dia.

0.100 0.005

(2.54 0.127ꢀ

X Lead Style - 14^S

0.050 0.010

(1.27 0.254ꢀ

0.020

(0.508ꢀ

0.014 (0.356ꢀ

Min.

0.062 0.002

(1.57 0.051ꢀ

Dia.

0.250 0.015

(6.35 0.381ꢀ

0.100

(2.54ꢀ

0.013 0.001

(0.330 0.025ꢀ

Dia.

0.120 0.010

(3.05 0.254ꢀ

0.210

(5.33ꢀ

0.038

(0.965ꢀ

0.156 0.010

(3.96 0.254ꢀ

0.172 (4.37ꢀ

Min.

ENVIRONMENTAL PERFORMANCE

MIL-R-27208

REQUIREMENT

TYPICAL

CHANGE

TEST ⁽¹⁾

CONDITIONS

Thermal shock

Low temperature operation

High temperature exposure

(107)

5 cycles, -55 °C to +125 °C

1 h storage, 45 min rated power at -55 °C

250 h, no load at +150 °C

ΔR ≤ 1.0 ꢀ ⁽²⁾

ΔR ≤ 1.0 ꢀ ⁽²⁾⁽³⁾

ΔR < 0.02 ꢀ

ΔR < 0.01 ꢀ

ΔR < 0.03 ꢀ

240 h at rated power with humidity ranging

from 80 ꢀ RH to 98 ꢀ RH

Moisture resistance

(106)

ΔR ≤ 1.0 ꢀ ⁽²⁾

ΔR < 0.02 ꢀ

Resistance to soldering heat (210)

+350 °C for 3 s

18 shocks, 100 g, 6 ms, sawtooth, 3 axes

10 Hz to 2000 Hz, 20 g, 12 h, 3 axes

200 cycles

ΔR ≤ 1.0 ꢀ ⁽²⁾

ΔR ≤ 1.0 ꢀ ⁽²⁾⁽³⁾

ΔR ≤ 2.0 ꢀ

ΔR < 0.01 ꢀ

ΔR < 0.07 ꢀ

ΔR < 0.02 ꢀ

ΔR < 0.04 ꢀ

ΔR < 0.12 ꢀ

Shock

(213)

(204)

Vibration

Rotational life

Load life

(108)

1000 h at rated power at +85 °C

ΔR ≤ 2.0 ꢀ

Notes

(1)

(2)

(3)

Numbers in parenthesis refer to test method MIL-STD-202 as modified by the detail specification

For values below 100 Ω, add 0.05 Ω to the allowable change

The referenced tests also require that setting stability change shall not exceed 1.0 ꢀ plus the specified maximum resolution and operating

torque shall not exceed 150 ꢀ of the specified maximum

DERATING

0.50

0.40

0.30

0.20

0.10

75 85 100 125 150 175

AMBIENT TEMPERATURE °C

Revision: 26-Jul-2021

Document Number: 68017

For technical questions, contact: sfer@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

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Revision: 09-Jul-2021

Document Number: 91000