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67WR250KLF: 产品描述Trimmer Resistors - Through Hole 3/8" Squ 250K 10%; 产品类别未分类暂无类别数据; 文件大小61KB，共4页; 制造商TT Electronics plc; 官网地址http://www.ttelectronics.com/

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67WR250KLF概述

Trimmer Resistors - Through Hole 3/8" Squ 250K 10%

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MODEL 78

1-1/4” Rectangular

Multiturn

Cermet Trimming

Potentiometer

ELECTRICAL

Standard Resistance Range, Ohms

Standard Resistance Tolerance

Input Voltage, Maximum

Slider Current, Maximum

Power Rating, Watts

End Resistance, Maximum

Actual Electrical Travel, Turns, Nominal

Dielectric Strength

Insulation Resistance, Minimum

Resolution

Contact Resistance Variation, Maximum

ENVIRONMENTAL

10 to 2Meg

±10% (<100 Ohms = ±20%)

300 Vdc or rms not to exceed power rating

100mA or within rated power, whichever is less

1.0 at 70°C derating to 0 at 125°C

2 Ohms

500 Vrms

1,000 Megohms

Essentially infinite

1% or 1 Ohm, whichever is greater

Seal

Temperature Coefficient, Maximum

Operating Temperature Range

Thermal Shock

Moisture Resistance

Shock, 6ms Sawtooth

Vibration

High Temperature Exposure

Rotational Life

Load Life at 1.0 Watts

Resistance to Solder Heat

MECHANICAL

85°C Fluorinert® (No Leaks)

±100ppm/°C

–55°C to +125°C

5 cycles, –55°C to +125°C (1%

∆RT,

∆VR)

Ten 24 hour cycles (1%

∆RT,

IR 1,000 Megohms Min.)

100G’s (1%

∆RT,

∆VR)

20G’s, 10 to 2,000 Hz (1%

∆RT,

∆VR)

250 hours at 125°C (2%

∆RT,

∆VR)

200 cycles (3%

∆RT)

1,000 hours at 70°C (2%

∆RT)

260°C for 10 sec. (1%

∆RT)

Mechanical Stops

Torque, Starting Maximum

Weight, Nominal

Fluorinert® is a registered trademark of 3M Company.

Specifications subject to change without notice.

Clutch Action, both ends

5oz.-in. (0.035 N-m)

.09 oz. (2.6 grams)

1-61

Model 78

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