Datasheet > 1248W200R10%

1248W200R10%

更新时间： 2024-02-20 07:52:24

品牌	Logo	应用领域
威世 - VISHAY		PC 电阻器
页数	文件大小	规格书
3页	99K
描述
RESISTOR, TRIMMER, METAL FOIL, 21 TURN(S), 0.25 W, 200 ohm, 1/4 INCH, RECTANGULAR, 3 PINS

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1248W200R10% 技术参数

生命周期：	Active	包装说明：	PCB Mount, 2518
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8533.40.80.70	风险等级：	5.21
执行器方向：	VERTICAL	执行器类型：	SCREW
其他特性：	PRECISION	构造：	Rectangular
安装特点：	THROUGH HOLE MOUNT	端子数量：	3
转弯数量：	21	最高工作温度：	150 °C
最低工作温度：	-55 °C	封装高度：	6.352 mm
封装长度：	6.35 mm	封装形状：	RECTANGULAR PACKAGE
封装形式：	PCB Mount	封装宽度：	4.45 mm
额定功率耗散 (P)：	0.25 W	额定温度：	85 °C
电阻：	200 Ω	电阻定律：	LINEAR
电阻器类型：	TRIMMER	旋转角：	7560 deg
系列：	1248	尺寸代码：	2518
子类别：	POTENTIOMETER	表面贴装：	NO
技术：	METAL FOIL	温度系数：	-20,20 ppm/ °C
端子形状：	WIRE	容差：	10%
Base Number Matches：	1

1248W200R10% 数据手册

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 Max². (– 55 C to + 150 C Ref. @ + 25 C);

Through the wiper³; 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% Typical¹; 0.5% Maximum¹, SS

• Power Rating⁴: 0.25 watts @ + 85 C

Product may not

be to scale

• Resistance Range: 20 to 5K

• Resistance Tolerance: 10%

TABLE 1 - MODEL SELECTION*

AVERAGE STANDARD RESISTANCE VALUES STANDARD POWER RATING @ NO. OF

MODEL TERMINATION STYLE

WEIGHT (g)

(in

)

TOLERANCES +85 C AMBIENT TURNS

1248

W-Edge Mount, Top Adjust

20, 50, 100,

200, 500, 1K

2K, 5K

0.4

10% 0.25 W 21

X-Edge Mount, Side Adjust

P-Horizontal Mount, Side Adjust

*See Figure 1, next page.

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

ADDITIONAL SPECIFICATIONS:

TABLE 2 - ORDERING INFORMATION - 1248 SERIES PARTS

•

Contact Resistance Variation – CRV (noise): 10 ohms Maximum⁵

Please specify Vishay Model 1248 Precision Trimming

Potentiometers as follows:

Example:

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

1248

100R

10%

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

MODEL NO. TERMINATION

STYLE

RESISTANCE TOLERANCE

VALUE

• Adjustment Turns: 21

• Mechanical Stops: Wiper Idles – No Discontinuity

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

VISHAY FOIL • FRANCE +33.4.93.37.28.24 FAX: +33.4.93.37.27.31 • ITALY + 39.2.300.11919 FAX: +39.2.300.11999

• 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

• GERMANY +49.9287.710 FAX: +49 9287.70435

• ISRAEL +972.3.557.0945 FAX: +972.3.558.9121

• 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

12 3

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