Datasheet > 1240W

1240W

更新时间： 2024-09-27 05:57:35

品牌	Logo	应用领域
威世 - VISHAY		电位器微调电位器
页数	文件大小	规格书
5页	153K
描述
Bulk Metal® Foil Technology Precision Trimming Potentiometers, 1/4 Inch Square, RJ26 Style, Designed to

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1240W 数据手册

1240

Vishay Foil Resistors

Bulk Metal^®Foil Technology Precision Trimming

Potentiometers, 1/4 Inch Square, RJ26 Style, Designed to

Meet or Exceed the Requirements of MIL-PRF-39035, Char. H

FEATURES

• Temperature coefficient of resistance (TCR):

10 ppm/°C. (- 55 °C to + 150 °C ref. at + 25 °C);

through the wiper³⁾; 25 ppm/°C (see table 2 for

RoHS

COMPLIANT

low values)

• Load life stability: 0.1 % typical ΔR, 1.0 % maximum

ΔR under full rated power at + 85 °C for 10 000 h

• Settability: 0.05 % typical; 0.1 % maximum

• Setting stability: 0.1 % typical; 0.5 % maximum, ΔSS

• Power rating: 0.25 W at + 85 °C

• Resistance range: 5 Ω to 10 kΩ

TABLE 1 - MODEL SELECTION^*

POWER RATING

at + 85 °C AMBIENT

AVERAGE

WEIGHT (g)

MODEL

TERMINATION STYLE

NO. OF TURNS

W-edge mount, top adjust

X-edge mount, side adjust

P-horizontal mount, side adjust

1240

0.4

0.25 W

Note:

* See Figure 1, next page

TABLE 2 - 1240 (RJ26) SERIES

ELECTRICAL SPECIFICATIONS

TABLE 3 - VALUES VS. TOLERANCES

STANDARD RESISTANCE VALUES

STANDARD

Temperature Coefficient of

Resistance (TCR) 50 Ω to 10K

End-to-end²⁾

10 ppm/°C maximum

(- 55 °C to + 150 °C,

+ 25 °C ref.)

(in Ω)

TOLERANCE

5, 10

10 %

5 %

Temperature Coefficient of

Resistance 5, 10 and 20 Ω

20 ppm/°C

25 ppm/°C

20, 50, 100, 200, 500, 1K, 2K, 5K, 10K

Through the wiper³⁾

Stability

Load life at 10 000 h

0.1 % typical ΔR

1.0 % maximum ΔR

(under full rated power of

0.25 W at + 85 °C)

TABLE 4 - MECHANICAL SPECIFICATIONS

Power Rating⁴⁾

Settability

0.25 W at + 85 °C

Adjustment Turns

0.05 % typical;

0.1 % maximum

Mechanical Stops

Wiper idles - no discontinuity

All welded - no flux

Setting Stability

0.1 % typical;

0.5 % maximum

Internal

Terminations

Contact Resistance

3 Ω typical;

10 Ω maximum

Variation - CRV (noise)⁵⁾

1240X - diallyl-phthalate: green (DAP)

1240W - diallyl-phthalate: green (DAP)

1240P - thermoplastic: black

Hop-off

0.25 % typical;

1.0 % maximum

Case Material

High-Frequency Operation

Rise time

Inductance

1.0 ns without ringing

0.08 µH typical

0.5 pF typical

Shaft Torque

Backlash

3 oz. in. maximum

0.005 % typical

Capacitance

Operating Temperature Range - 55 °C to + 150 °C

Document Number: 63053

Revision: 17-Jun-08

For any questions, contact: foil@vishay.com

www.vishay.com

12 3 4 5

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与1240W相关器件

型号	品牌	获取价格	描述	数据表
1240W500R00JKB	VISHAY	获取价格	Bulk Metal® Foil Technology Precision Trimmin
1240X	VISHAY	获取价格	Bulk Metal® Foil Technology Precision Trimmin
1240X500R00JKB	VISHAY	获取价格	Bulk Metal® Foil Technology Precision Trimmin
1241.1002	SCHURTER	获取价格	Keypad Switch, 1 Switches, SPST, Momentary-tactile, 0.05A, 24VDC, 3N, 4 PCB Hole Cnt, Sold
1241.1003.3.044	SCHURTER	获取价格	Pushbutton Switch, SPST, Off-(on), Momentary, 0.05A, 24VDC, 4 PCB Hole Cnt, Solder Termina
1241.1003.3.070	SCHURTER	获取价格	Pushbutton Switch, SPST, Off-(on), Momentary, 0.05A, 24VDC, 4 PCB Hole Cnt, Solder Termina
1241.1003.3.072	SCHURTER	获取价格	Pushbutton Switch, SPST, Off-(on), Momentary, 0.05A, 24VDC, 4 PCB Hole Cnt, Solder Termina
1241.1003.5.033	SCHURTER	获取价格	Pushbutton Switch, SPST, Off-(on), Momentary, 0.05A, 24VDC, 4 PCB Hole Cnt, Solder Termina
1241.1003.6.022	SCHURTER	获取价格	Pushbutton Switch, SPST, Off-(on), Momentary, 0.05A, 24VDC, 4 PCB Hole Cnt, Solder Termina
1241.1003.7.001	SCHURTER	获取价格	Pushbutton Switch, SPST, Off-(on), Momentary, 0.05A, 24VDC, 4 PCB Hole Cnt, Solder Termina

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