1248W20R010% datasheet, PDF - EEWORLD Datasheet

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1248W20R010%: DescriptionRESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 20 ohm, 1/4 INCH, RECTANGULAR, 3 PINS; CategoryPassive components The resistor; File Size100KB，3 Pages; ManufacturerVishay; Websitehttp://www.vishay.com

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1248W20R010% Overview

RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 20 ohm, 1/4 INCH, RECTANGULAR, 3 PINS

1248W20R010% Parametric

Parameter Name	Attribute value
Maker	Vishay
package instruction	PCB Mount, 2518
Reach Compliance Code	unknown
ECCN code	EAR99
Actuator direction	VERTICAL
Actuator type	SCREW
Other features	PRECISION
structure	Rectangular
Manufacturer's serial number	1248
Installation features	THROUGH HOLE MOUNT
Number of terminals	3
number of turns	21
Maximum operating temperature	150 °C
Minimum operating temperature	-55 °C
Package height	6.352 mm
Package length	6.35 mm
Package shape	RECTANGULAR PACKAGE
Package form	PCB Mount
Package width	4.45 mm
Rated power dissipation(P)	0.25 W
Rated temperature	85 °C
resistance	20 Ω
resistance law	LINEAR
Resistor type	TRIMMER
rotation angle	7560 deg
series	1248
size code	2518
surface mount	NO
technology	METAL FOIL
Temperature Coefficient	-20,20 ppm/°C
Terminal shape	WIRE
Tolerance	10%

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1248

Vishay Foil Resistors

Bulk Metal

Foil Technology

Precision Trimming Potentiometers

1/4 Inch Rectilinear, RJ26 Style - Industrial Trimmer

FEATURES

• Temperature Coefficient of Resistance (TCR):

20ppm/°C Max

. (– 55°C to + 150°C Ref. @ + 25°C);

Through the wiper

;

±50

ppm/°C

• Load Life Stability: 1.0% Maximum

∆R

under Full Rated

Power for 2,000 hours @ + 85°C

• Settability: 0.1%

• Setting Stability: 0.1% Typical

; 0.5% Maximum

∆SS

• Power Rating

: 0.25 watts @ + 85°C

• Resistance Range: 20Ω to 5KΩ

• Resistance Tolerance:

10%

Product may not

be to scale

TABLE 1 - MODEL SELECTION*

MODEL

1248

TERMINATION STYLE

W-Edge Mount, Top Adjust

0.4

X-Edge Mount, Side Adjust

P-Horizontal Mount, Side Adjust

*See Figure 1, next page.

AVERAGE STANDARD RESISTANCE VALUES STANDARD POWER RATING @ NO. OF

WEIGHT (g)

(in

Ω

)

TOLERANCES +85

C AMBIENT TURNS

20, 50, 100,

200, 500, 1K

2K, 5K

±10%

0.25 W

±2

NOTES:

1. Maximum is 1.0% A.Q.L. standard for all specifications except TCR. (For TCR information see notes 2 and 3). “Typical”

is a designers reference which represents that 85% of the lots supplied, over a long period of time, will be at least the

figure stated or better.

2. Maximum TCR applies to the 3

(sigma) limit or 99.73% of a production lot. (Measured end-to-end with wiper off the

element.)

3. Measurements of TCR through the wiper are influenced more by setting stability and the percentage of the total resistance

in use (at the wiper) than by fundamental resistance change due to temperature alone. The parameter shown is a 2

distribution typifying the behavior of the device when used with 40% or more of the total resistance in use.

4. Derated linearly from full power @ + 85°C to zero (0) watts @ + 150°C. See Figure 2, next page.

5. Independent of resistance value 3 ohms maximum available on special request.

Special Available Options:

Special marking

Burn-in and screening operations

TRIMMERS

ADDITIONAL SPECIFICATIONS:

• Contact Resistance Variation – CRV (noise): 10 ohms Maximum

• Hop-off: 0.25% Typical; 1.0% Maximum

• Operating Temperature Range: – 55°C to + 150°C

• Adjustment Turns: 21

• Mechanical Stops: Wiper Idles – No Discontinuity

VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31

• GERMANY +49.9287.710 FAX: +49 9287.70435

• ISRAEL +972.3.557.0945 FAX: +972.3.558.9121

TABLE 2 - ORDERING INFORMATION - 1248 SERIES PARTS

Please specify Vishay Model 1248 Precision Trimming

Potentiometers as follows:

Example:

1248

100R

RESISTANCE

VALUE

10%

TOLERANCE

MODEL NO. TERMINATION

STYLE

See Table 1 for details. See Figure 1, next page for Standard Marking.

• SWEDEN +46.8.594.70590 FAX: +46.8.594.70581

• UK +44 191 514 8237 FAX: +44 1953 457 722

• USA +1 610 407-4800 FAX: +1 610 640-9081

• ITALY + 39.2.300.11919 FAX: +39.2.300.11999

• JAPAN +81.42.729.0661 FAX: +81.42.729.3400

• SINGAPORE +65.788.6668 FAX: +65.788.0988

Document Number: 63058

Revision 06-Aug-02

www.vishay.com

159

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Description	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 20 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 100 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 1000 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 200 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 2000 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 500 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 50 ohm, 1/4 INCH, RECTANGULAR, 3 PINS	RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 5000 ohm, 1/4 INCH, RECTANGULAR, 3 PINS
Maker	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay	Vishay
package instruction	PCB Mount, 2518	PCB Mount, 2518	PCB Mount, 2518	PCB Mount, 2518	PCB Mount, 2518	PCB Mount, 2518	PCB Mount, 2518	PCB Mount, 2518
Reach Compliance Code	unknown	unknown	unknown	unknown	unknown	unknown	unknown	unknown
Actuator direction	VERTICAL	VERTICAL	VERTICAL	VERTICAL	VERTICAL	VERTICAL	VERTICAL	VERTICAL
Actuator type	SCREW	SCREW	SCREW	SCREW	SCREW	SCREW	SCREW	SCREW
Other features	PRECISION	PRECISION	PRECISION	PRECISION	PRECISION	PRECISION	PRECISION	PRECISION
structure	Rectangular	Rectangular	Rectangular	Rectangular	Rectangular	Rectangular	Rectangular	Rectangular
Manufacturer's serial number	1248	1248	1248	1248	1248	1248	1248	1248
Installation features	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT	THROUGH HOLE MOUNT
Number of terminals	3	3	3	3	3	3	3	3
number of turns	21	21	21	21	21	21	21	21
Maximum operating temperature	150 °C	150 °C	150 °C	150 °C	150 °C	150 °C	150 °C	150 °C
Minimum operating temperature	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C	-55 °C
Package height	6.352 mm	6.352 mm	6.352 mm	6.352 mm	6.352 mm	6.352 mm	6.352 mm	6.352 mm
Package length	6.35 mm	6.35 mm	6.35 mm	6.35 mm	6.35 mm	6.35 mm	6.35 mm	6.35 mm
Package shape	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE	RECTANGULAR PACKAGE
Package form	PCB Mount	PCB Mount	PCB Mount	PCB Mount	PCB Mount	PCB Mount	PCB Mount	PCB Mount
Package width	4.45 mm	4.45 mm	4.45 mm	4.45 mm	4.45 mm	4.45 mm	4.45 mm	4.45 mm
Rated power dissipation(P)	0.25 W	0.25 W	0.25 W	0.25 W	0.25 W	0.25 W	0.25 W	0.25 W
Rated temperature	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C	85 °C
resistance	20 Ω	100 Ω	1000 Ω	200 Ω	2000 Ω	500 Ω	50 Ω	5000 Ω
resistance law	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR	LINEAR
Resistor type	TRIMMER	TRIMMER	TRIMMER	TRIMMER	TRIMMER	TRIMMER	TRIMMER	TRIMMER
rotation angle	7560 deg	7560 deg	7560 deg	7560 deg	7560 deg	7560 deg	7560 deg	7560 deg
series	1248	1248	1248	1248	1248	1248	1248	1248
size code	2518	2518	2518	2518	2518	2518	2518	2518
surface mount	NO	NO	NO	NO	NO	NO	NO	NO
technology	METAL FOIL	METAL FOIL	METAL FOIL	METAL FOIL	METAL FOIL	METAL FOIL	METAL FOIL	METAL FOIL
Temperature Coefficient	-20,20 ppm/°C	-20,20 ppm/°C	-20,20 ppm/°C	-20,20 ppm/°C	-20,20 ppm/°C	-20,20 ppm/°C	-20,20 ppm/°C	-20,20 ppm/°C
Terminal shape	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE	WIRE
Tolerance	10%	10%	10%	10%	10%	10%	10%	10%
ECCN code	EAR99	-	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99

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