Datasheet > 78PBWR25KLF

78PBWR25KLF

更新时间： 2024-11-07 03:08:11

品牌	Logo	应用领域
TTELEC		电位器微调电位器
页数	文件大小	规格书
4页	63K
描述
1-1/4 Rectangular Multiturn Cermet Trimming Potentiometer

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78PBWR25KLF 数据手册

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

10 to 2Meg

10ꢀ ꢁ(100 Ohms ꢂ 20ꢀꢃ

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

Insulation Resistance, Minimum

Resolution

1,000 Megohms

Essentially infinite

Contact Resistance Variation, Maximum

1ꢀ or 1 Ohm, whichever is greater

ENVIRONMENTAL

Seal

85°C Fluorinert® ꢁNo Leaksꢃ

100ppmꢄ°C

Temperature Coefficient, Maximum

Operating Temperature Range

Thermal Shock

Moisture Resistance

Shock, 6ms Sawtooth

Vibration

–55°C to +125°C

5 cycles, –55°C to +125°C ꢁ1ꢀ ∆RT, 1ꢀ ∆VRꢃ

Ten 24 hour cycles ꢁ1ꢀ ∆RT, IR 1,000 Megohms Min.ꢃ

100G’s ꢁ1ꢀ ∆RT, 1ꢀ ∆VRꢃ

20G’s, 10 to 2,000 Hz ꢁ1ꢀ ∆RT, 1ꢀ ∆VRꢃ

250 hours at 125°C ꢁ2ꢀ ∆RT, 2ꢀ ∆VRꢃ

200 cycles ꢁ3ꢀ ∆RTꢃ

High Temperature Exposure

Rotational Life

Load Life at 0.5 Watts

Resistance to Solder Heat

1,000 hours at 70°C ꢁ2ꢀ ∆RTꢃ

260°C for 10 sec. ꢁ1ꢀ ∆RTꢃ

MECHANICAL

Mechanical Stops

Torque, Starting Maximum

Weight, Nominal

Clutch Action, both ends

5oz.-in. ꢁ0.035 N-mꢃ

.09 oz. ꢁ2.6 gramsꢃ

Fluorinert® is a registered trademark of 3M Company.

Specifications subject to change without notice.

Model 78

1-61

12 3 4

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