Datasheet > 44WR20LFTB

44WR20LFTB

更新时间： 2024-11-02 03:00:51

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
3页	58K
描述
4mm Square Multiturn Surface Mount Cermet Trimming Potentiometer

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中文翻译

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44WR20LFTB 数据手册

MODEL 44

4mm Square Multiturn

Surface Mount

Cermet Trimming

Potentiometer

ELECTRICAL

Standard Resistance Range, ꢂOms

Standard Resistance Tolerance

Input Voltage, Maximum

Slider Current, Maximum

Power Rating, Watts

End Resistance, Maximum

Actual Electrical Travel, Turns, Nominal

Dielectric StrengtO

±1 to ꢄMeg

±±1% (ꢁ±11 ꢂOms ꢃ ±ꢄ1%)

311 Vdc or rms not to exceed power rating

±11mA or witOin rated power, wOicOever is less

1.ꢄ5 at 85°C derating to 1 at ±51°C

±% or ꢄ ꢂOms, wOicOever is greater

611Vrms

Insulation Resistance, Minimum

Resolution

±,111 MegoOms

Essentially infinite

Contact Resistance Variation, Maximum

±% or 3 ꢂOms, wOicOever is greater

ENVIRONMENTAL

Seal

85°C Fluorinert® (No Leaks)

±±11ppmꢀ°C (ꢁ±11 ꢂOms ꢃ ±ꢄ51ppmꢀ°C)

–65°C to +±51°C

Temperature Coefficient, Maximum

ꢂperating Temperature Range

TOermal SOock

Moisture Resistance

SOock, 6ms SawtootO

Vibration

5 cycles, –65°C to +±51°C (ꢄ% ∆RT, ±% ∆VR)

Ten ꢄ4 Oour cycles (ꢄ% ∆RT, IR ±1 MegoOms Min.)

±11G’s (±% ∆RT, ±% ∆VR)

ꢄ1G’s, ±1 to ꢄ,111 Hz (±% ∆RT, ±% ∆VR)

ꢄ11 cycles (3% ∆RT, ±% CRV)

Rotational Life

Load Life at 1.ꢄ5 Watts

Resistance to Solder Heat

Temperature Exposure, Maximum

Solderability

±,111 Oours at 85°C (ꢄ% ∆RT, ±% CRV)

ꢄ61°C for ±1 sec. (±% ∆RT)

ꢄ±5°C for 3 min. (±% ∆RT)

Per MIL-STD-ꢄ1ꢄ, MetOod ꢄ18

MECHANICAL

MecOanical Stops

Torque, Starting Maximum

WeigOt, Nominal

ClutcO action, botO ends

3 oz.-in. (1.1ꢄ± N-m)

.1± oz. (1.3 grams)

Fluorinert® is a registered trademark of 3M Company.

Specifications subject to cOange witOout notice.

Model 44

1-21

12 3

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