12S202 [VISHAY]

Potentiometer, Wire Wound, 0.5W, 2000ohm, 5% +/-Tol, -50,50ppm/Cel, 2516,;


型号：	12S202
厂家：	VISHAY
描述：	Potentiometer, Wire Wound, 0.5W, 2000ohm, 5% +/-Tol, -50,50ppm/Cel, 2516,
文件：	总3页 (文件大小：63K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Models 12^S, 14^S, 15^S, 17^S, 18^S

Vishay Techno

1/4" [6.35 mm] Sq. Wirewound Trimmers

FEATURES

• Precious metal wiper

• 0.25 watt to + 85 °C

• TCR < 50 ppm/°C

• Solderable leads

• Special configurations available

• 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

(%)

1.65

1.35

1.13

0.82

0.62

0.ꢀ9

0.3ꢀ

0.27

0.21

0.17

0.16

ELECTRICAL SPECIFICATIONS

Electrical Travel: 22 ꢀ turns

Resistance Range: 10 ohms to 5 kilohms, Extended range

available in non MIL-Spec product

Resistance Tolerance: 5 % standard,

Closer tolerances available

Temperature Coefficient: (- 65 °C to + 150 °C) 50 ppm/°C

Power Rating: 0.5 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

Insulation Resistance: >100000 Megohms (500 VDC),

These specifications exceed MIL-Spec

100

200

500

10k

20k

25k

*Other resistances available upon request.

MECHANICAL SPECIFICATIONS

CIRCUIT DIAGRAM

Operating Torque: 3 ounce inch maximum, 17^sand 18^s,

5 ounce inch maximum, 12^s, 1ꢀ^sand 15^s

Rotation: Clutch stop, wiper idles

Weight: 0.935 grams maximum

Resistive Element: Nickel chromium

Rotational Life: 200 cycles minimum

Terminal Strength: 2 pounds for 10 seconds

ENVIRONMENTAL SPECIFICATIONS

Temperature Limits: - 65 °C to + 175 °C

Sealing: Fully sealed case (non-hermetic)

DIMENSIONAL CONFIGURATIONS 1/4" [6.35 mm] Square in inches [millimeters]

X Lead Style - 18^S

W Lead Style - 17^S

0.160 0.010

0.030 0.010

0.045 0.005

[1.14 0.127]

[0.406 0.254]

[0.762 0.254]

0.020 0.003

0.038 0.005

[0.965 0.127]

[0.508 0.076]

0.260 0.005

[6.60 0.127]

0.020 0.003

0.100 0.005

[2.54 0.127]

0.211 0.005

[0.508 0.076]

0.062 0.005

0.045 0.005

[1.14 0.127]

[5.36 0.127]

0.172 [4.37]

Min.

[1.57 0.127]

0.100 0.005

[2.54 0.127]

0.020 0.003

[0.508 0.076]

0.016 0.001

[0.406 0.025]

Dia.

0.020 0.003

[0.508 0.076]

0.120 0.005

[3.05 0.127]

0.260 0.005

[6.60 0.127]

0.030 0.010

[0.762 0.254]

1 2 3

0.211 0.005

[5.36 0.127]

0.172 [4.37]

Min.

0.016 0.001

[0.406 0.025]

Dia.

0.160 0.010

[4.06 0.254]

0.120 0.005

[3.05 0.127]

0.038 0.005

[0.965 0.127]

0.100 0.005

[2.54 0.127]

0.062 0.005

[1.57 0.127]

Dia.

0.100 0.005

[2.54 0.127]

www.vishay.com

For technical questions contact te1resistors@vishay.com

Document Number: 68017

Revision: 27-Jun-05

Models 12^S, 14^S, 15^S, 17^S, 18^S

1/ꢀ" [6.35 mm] Sq. Wirewound

Vishay Techno

DIMENSIONAL CONFIGURATIONS 1/4" [6.35 mm] Square in inches [millimeters]

P Lead Style - 15^S

0.180 0.015

[4.57 0.381]

W Lead Style - 12^S

0.156 0.010

[3.96 0.254]

0.020 0.0015

[0.508 0.038]

Dia.

0.120 0.010

0.014 [0.356]

Min.

[3.05 0.254]

0.062 0.002

0.100

[2.54]

0.250 0.015

[6.35 0.381]

[1.57 0.051]

Dia.

0.013 0.001

[0.330 0.025]

Dia.

0.020

[0.508]

0.050 0.010

[1.27 0.254]

0.156

[3.96]

0.062 0.002

[1.57 0.051]

Dia.

0.082

[2.08]

0.250 0.015

[6.35 0.381]

1.72

[4.37]

Min.

0.100

[2.54]

0.055 0.010

[1.40 0.254]

0.020

0.172

[4.37]

Min.

0.038

[0.965]

[0.508]

0.100

[2.54]

0.125

[3.17]

0.050 0.010

[1.27 0.254]

0.014 [0.356]

Min.

X Lead Style - 14^S

0.050 0.010

[1.27 0.254]

0.020

[0.508]

0.014 [0.356]

Min.

0.062 0.002

[1.57 0.051]

Dia.

0.250 0.015

0.100

[2.54]

[6.35

0.381]

0.013 0.001

[0.330 0.025]

Dia.

0.120 0.010

[3.05 0.254]

0.210

[5.33]

0.038

[0.965]

0.172 [4.37]

Min.

0.156 0.010

[3.96 0.254]

ENVIRONMENTAL PERFORMANCE

MIL-R-27208

REQUIREMENT

TYPICAL

CHANGE

TEST¹

CONDITIONS

ΔR ≤ 1.0 %²

ΔR ≤ 1.0 %^2,3

Thermal Shock

(107) 5 cycles, - 55 °C to + 125 °C

ΔR < 0.02 %

ΔR < 0.01 %

ΔR < 0.03 %

Low Temperature Operation

High Temperature Exposure

1 hour storage, ꢀ5 minutes rated power at - 55 °C

250 hours, no load at + 150 °C

2ꢀ0 hours at rated power with humidity ranging

from 80 % RH to 98 % RH

ΔR ≤ 1.0 %²

Moisture Resistance

(106)

ΔR < 0.02 %

ΔR ≤ 1.0 %²

ΔR ≤ 1.0 %^2,3

ΔR ≤ 2.0 %

Resistance to Soldering Heat

Shock

(210) + 350 °C for 3 seconds

ΔR < 0.01 %

ΔR < 0.07 %

ΔR < 0.02 %

ΔR < 0.0ꢀ %

ΔR < 0.12 %

(213) 18 shocks, 100 g, 6 ms, sawtooth, 3 axes

(20ꢀ) 10 to 2000 Hz, 20 g, 12 hours, 3 axes

200 cycles

Vibration

Rotational Life

Load Life

(108) 1000 hours at rated power at + 85 °C

ΔR ≤ 2.0 %

¹Numbers in parenthesis refer to test method MIL-STD-202 as modified by the detail specification.

²For values below 100 ohms, add 0.05 ohm to the allowable change.

³The referenced tests also require that setting stability change shall not exceed 1.0 percent plus the specified maximum resolution and

operating torque shall not exceed 150 % of the specified maximum.

DERATING

ORDERING INFORMATION

12^S

501

0.50

0.ꢀ0

0.30

0.20

0.10

MODEL

VALUE

12^S= Top Adjustment Screw

1ꢀ^S= Side Adjustment Screw

15^S= PC Mount

17^S= Top Adjustment Screw

18^S= Side Adjustment Screw

First two digits are

significant figures. Last

digit specifies number of

zeros to follow.

75 85 100 125 150 175

AMBIENT TEMP. DEG. CENTIGRADE

Document Number: 68017

Revision: 27-Jun-05

For technical questions contact te1resistors@vishay.com

www.vishay.com

Legal Disclaimer Notice

Vishay

Disclaimer

All product specifications and data are subject to change without notice.

Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf

(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein

or in any other disclosure relating to any product.

Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any

information provided herein to the maximum extent permitted by law. The product specifications do not expand or

otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed

therein, which apply to these products.

No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this

document or by any conduct of Vishay.

The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless

otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such

applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting

from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding

products designed for such applications.

Product names and markings noted herein may be trademarks of their respective owners.

Document Number: 91000

Revision: 18-Jul-08

www.vishay.com

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