Datasheet > 1280G20R010%

1280G20R010%

更新时间： 2024-11-09 20:57:23

品牌	Logo	应用领域
威世 - VISHAY		电阻器
页数	文件大小	规格书
2页	37K
描述
RESISTOR, TRIMMER, METAL FOIL, 26 TURN(S), 0.75W, 20ohm, 3/4 INCH, RECTANGULAR, 3 PINS

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1280G20R010% 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8533.40.80.70	风险等级：	5.14
执行器方向：	HORIZONTAL	执行器类型：	SCREW
其他特性：	PRECISION	安装特点：	THROUGH HOLE MOUNT
端子数量：	3	转弯数量：	26
最高工作温度：	125 °C	最低工作温度：	-55 °C
封装形状：	RECTANGULAR PACKAGE	额定功率耗散 (P)：	0.75 W
额定温度：	25 °C	电阻：	20 Ω
电阻定律：	LINEAR	电阻器类型：	TRIMMER
表面贴装：	NO	技术：	METAL FOIL
端子形状：	FLAT	容差：	10%
Base Number Matches：	1

1280G20R010% 数据手册

P R E C I S I O N B U L K M E T A L

F O I L T E C H N O L O G Y

VIS HAY 12 8 0 AND 12 8 5 G S ERIES

Pre c is ion Trim m ing Pote ntiom e te rs

3/4" Re c tiline a r, ±5 ppm /°C a nd ±15 ppm /°C TCR

FEATURES

• Temperature Coefficient of Resistance (TCR):

<15 ppm/°C (Model 1280G); <5 ppm/°C (Model 1285G)⁴

(–55°C to +125°C Ref. @ +25°C); through the wiper

±50 ppm/°C

• Load Life Stability: 0.5% Maximum ∆R under Full Rated

Power @ +25°C for 2,000 hours

• Settability: 0.05% Typical; 0.1% Maximum

• Setting Stability: 0.1% Typical; 0.5% Maximum, ∆SS

• Power Rating: 0.75 watts @ +25°C

• Resistance Range: 10 Ω to 20K Ω

• Resistance Tolerance: ±10%, ±5 %

• Backlash: < 0.05%

• Tap Test: 0.05% Typical; 0.1% Maximum

TABLE 1 - 1 2 8 0 G AND 1 2 8 5 G S ERIES

TABLE 2 - 1 2 8 0 G AND 1 2 8 5 G S ERIES

MECHANICAL SPECIFICATIONS

ELECTRICAL SPECIFICATIONS

Adjustment Turns

Backlash

Stops

26 ±2 turns

Resistance Tolerance

Model 1280G 10%¹

Model 1285G 5%

<0.05%

Resistance Range

10 Ω to 20K Ω

clutch, wiper idles

+85°C water immersion

5 oz. in. Max.

T.C.R. Model 1280G

+15 ppm/°C (–55°C to +25°C)

–15 ppm/°C (+25°C to +125°C)

Sealed

Torque

T.C.R. Model 1285G ⁴

Power

+5 ppm/°C (–55°C to +25°C)

–5 ppm/°C (+25°C to +125°C)

Weight

1.5 grams Max.

0.75 W @ +25°C derated linearly

to zero watts @ +125°C (See Fig, 2)

Construction

Case Material

Lead Screw

Wiper

Valox^®

Brass

Settability

0.05% Typical²; 0.1% Maximum

Precious Metal Brush

Nylon

Rider Block

Element

Lead Material

Setting Stability

0.1% Typical; 0.5% Maximum,

∆SS

Bulk Metal^®Foil

Gold Plated Phosphor Bronze

Roll-on, Roll-off

0.25% Typical; 1.0% Maximum

Load-Life Stability

0.5% ∆R after 2,000 hours under

Full Rated Power @ +25°C

TABLE 3 - S TANDARD VALUES

End Resistance

C.R.V.³

2 Ω Maximum

3 Ω Typical; 10 Ω Maximum

10 Ω, 20 Ω, 50 Ω, 100 Ω, 200 Ω, 500 Ω

1K, 2K, 5K, 10K, 20K

Frequency Characteristics 10 ns rise time @ 1K Ω to 100 MHz

NOTES

HOW TO ORDER 1 2 8 0 /1 2 8 5 S ERIES P ARTS :

1. 5% Available on Special Order.

Please specify Vishay Model 1202 Precision Trimming Potentiometers

as follows:

2. Typical is a designer’s reference which represents that 85% of the

units supplied over a long period of time, will be at least the figure

shown or better.

Example:

10%

1280G

100R

3. The 1280G can be screened for low noise, if required.

4. For model 1285G 10 Ω and 20 Ω TCR is ±10 ppm/°C

5. Panel mount available on special order.

Model No.

Resistance Value Tolerance

VISHAY FOIL RESISTORS, 63 Lincoln Highway, P.O. Box 4004, Malvern, PA 19355-0988 • Phone (610) 644-1300

App. Eng. Phone (610) 251-5289 • App. Eng, Fax (610) 640-4487 • Sales Phone (610) 251-5842 • Sales Fax (610) 640-9081

144

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