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44GR250KLFTB

更新时间：2024-09-18 05:30:38

品牌：TTELEC

描述：4mm Square Multiturn Surface Mount Cermet Trimming Potentiometer

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44GR250KLFTB 概述

4mm Square Multiturn Surface Mount Cermet Trimming Potentiometer 4毫米广场多圈表面贴装金属陶瓷微调电位器

44GR250KLFTB 数据手册

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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

TOP ADJUSTMENT (Inch/mm)

SIDE ADJUSTMENT (Inch/mm)

Model 44W

Model 44J

Solderable

Terminals

.118±.113

.ꢄ13±.176

Solderable

Terminals

.118±.113

.ꢄ13±.176

(±)

.1ꢄ5

.63

.1ꢄ5

.63

.±11

ꢄ.54

(±)

(3)

(ꢄ)

.±91

4.83

.±91

4.83

(ꢄ)

.±11

ꢄ.54

.16±

±.56

.16±

±.56

.±±3

ꢄ.87

.±±3

ꢄ.87

(3)

.ꢄ11

5.18

Metal Adjustment

Screw .156ꢀ±.4ꢄ Dia.

witO .1ꢄ1ꢀ.5± wide x

.1±5ꢀ.38 deep slot

Metal Adjustment

Screw .156ꢀ±.4ꢄ Dia.

witO .1ꢄ1ꢀ.5± wide x

.1±5ꢀ.38 deep slot

.±98

5.13

.±81

4.57

.ꢄ19

5.3±

.1ꢄꢄ

.55

.±38

3.5±

.±47

3.73

.±54

3.9±

.139

.99

.163

±.61

.13ꢄ

.8±

SOLDER PAD LAYOUT (Inch/mm)

Model 44G

.15±

±.31

.±±4

ꢄ.91

ꢄX

.179

ꢄ.1±

(±)

.1ꢄ5

.63

Model 44W

.±11 .±91

ꢄ.54 4.83

.±11

ꢄ.54

.161

±.5ꢄ

(ꢄ)

.16±

±.56

.±57

3.99

.±ꢄ1

3.15

(3)

.179

ꢄ.1±

Metal Adjustment

Screw .156ꢀ±.4ꢄ Dia.

witO .1ꢄ1ꢀ.5± wide x

.1±5ꢀ.38 deep slot

.ꢄꢄ9

5.8ꢄ

.±81

4.57

Model 44J

.191

ꢄ.ꢄ9

.179

ꢄ.1±

.15±

±.31

ꢄX

.±54

3.9±

.ꢄ15

5.ꢄ±

.15±

±.31

.118±.113

.1ꢄ4

.6±

.ꢄ13±.176

Solderable

Terminals

.191

ꢄ.ꢄ9

.179

ꢄ.1±

Model 44G

.15±

±.31

ꢄX

STANDARD RESISTANCE VALUES, OHMS

±1

ꢄ1

±11

ꢄ11

511

±K

ꢄK

±1K

ꢄ1K

ꢄ5K

51K

±11K

ꢄ11K

ꢄ51K

511K

±Meg

ꢄMeg

Model 44

1-22

FEATURES AND BENEFITS

• Space saving SMD design for tOe most compact board designs

• Sealed to witOstand aggressive water wasO

• Long life - set and forget construction

• BI quality and reliability

• Available in top and side adjustment versions, J-Hook or gull wing termination

PACKAGING

Standard: Embossed Tape & Reel

All units oriented witO #± pin to tOe rigOt of tOe direction of feed.

13” Reel

7” Reel

Pin Style

WidtO

Sprocket

Capacity

Diameter

G & J

±ꢄ mm

ꢃ 4 mm PitcO

ꢃ ±,111 Units

±6 mm

4 mm PitcO

±,111 Units

G & J

±ꢄ mm

4 mm PitcO

511 Units

±6 mm

4 mm PitcO

ꢄ51 Units

Tape

Reel

ꢃ

±3” (331.ꢄ mm)

7” (±78 mm)

Option: Anti-Static Tubes

All units oriented witO #± pin to same side.

Magazine

Capacity

ꢃ

±11 Units

ORDERING INFORMATION

44 G R 10K LF XX

Model Series

Pin Style

Packaging ꢂption:

T7 ꢃ 7" Tape & Reel

T±3 ꢃ ±3" Tape & Reel

TB ꢃ Tubes

RoHS Compliant Product Code - optional

Resistance Value

Resistance Prefix

* Packaging option must be specified.

CIRCUIT DIAGRAM

(2)

NOTES

Metric equivalents, based on ± incO ꢃ ꢄ5.4mm are

rounded to tOe same number of significant figures

as in tOe original EnglisO units and are provided for

general information only.

INCH

(1)

(3)

Tolerances unless otOerwise specified:

Linear ꢃ ± .1±ꢄ incOes (.31mm)

Angular ꢃ ± ꢄ degrees

Model 44

1-23

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