Datasheet > 140-7-3-500

140-7-3-500

更新时间： 2024-09-14 05:11:43

品牌	Logo	应用领域
威世 - VISHAY		/
页数	文件大小	规格书
3页	268K
描述
RESISTOR, POTENTIOMETER, WIRE WOUND, 1 TURN(S), 2 W, 50 ohm

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140-7-3-500 数据手册

Model 140, 142

Vishay Spectrol

1/2” (12.7mm) Single - Turn Wirewound

Precision Potentiometer

FEATURES

• 50Ω to 20KΩ

• Bushing or Servo

Model 142

Servo Mount

Model 140

Bushing Mount

ELECTRICAL SPECIFICATIONS

PARAMETER

STANDARD

Total Resistance

50Ω to 20KΩ

Tolerance

± 5%

Absolute Minimum Resistance

Linearity x Total Resistance or

0.5Ω, whichever is greater

Linearity (Independent)

Noise

± 1.0%

100Ω ENR

Power Rating

2 watts at 40°C ambient derating linearly to zero at 125°C

1,000MΩ min. 0.500VDC

Insulation Resistance

Dielectric Strength

Rotation

1.000V_RMS, 60 Hz

140

142

320° ± 5°

350° + 0° - 4°

End Voltage

Linearity x total applied voltage for total resistance above 20Ω;

2.0% of total applied voltage for 20Ω and below

MATERIAL SPECIFICATIONS

ENVIRONMENTAL SPECIFICATIONS

Shaft

Stainless steel, non magnetic

non-passivated

Vibration

20G thru 2000 Hz

50g

Shock

Housing

Rear Lid

Aluminum, anodized

Molded glass filled

thermoset plastic

Brass, gold plated

(Model 140 only)

Steel, nickel plated.

Brass, nickel plated

Salt Spray

Rotational Life

96 Hours

500,000

Terminals

Shaft Revolutions

900 Hours

Mounting Hardware

Lockwasher Internal Tooth:

Panel nut:

Load Life

Temperature Range

- 55°C to + 125°C (operating)

ORDERING INFORMATION

This part number consists of four groups of digits. The first group is the Spectrol model number. The second digit describes the mechani-

cal options available. The third digit describes the other optional features which can be supplied. The fourth group is the standard EIA

resistance code.

Example: 140 - 0 - 0 - 203

140

203

MODEL

MECHANICAL OPTIONS

OTHER OPTIONAL

RESISTANCE CODE

FEATURES

Bushing 140

0. Stops, Slotted Shaft (std)

1. Plain Shaft

2. Shaft Lock

0. Standard Torque

1. Center Tap (10K max. Rt)

2. High Torque

2 = First Significant figure

0 = Second significant figure

3 = Number of zeros following

3. Continuous Rotation

4. Combination 1 & 2

5. Combination 1 & 3

6. Combination 2 & 3

7. Combination 1, 2, & 3

3. Sealed Construction

4. Combination 1 & 2

5. Combination 1 & 3

6. Combination 2 & 3

7. Combination 1, 2, & 3

Servo 142

0. Continuous Rotation,

0. Standard Torque

Same as above

Plain Shaft (std.)

1. Center Tap (10K max. Rt)

Example: Part number 140-0-0-203 describes bushing mount 140 with stops, slotted shaft, standard torque and resistance of 20KΩ

Document Number: 57039

Revision 16-Jul-03

For technical questions, contact sfer@vishay.com

www.vishay.com

12 3

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