Price: US $ 0.104 - 0.148 / Piece
Brand Name: genphoal
Model Number: 3266
Country/Region: China
Post Date: Mar 20,2012

Product Description: rotary carbon glaze potentiometer


rotary carbon glaze potentiometerDetailed Product Description


2.1 Nominal resistance range of 10~ 5Mohm
2.2 Resistance Tolerance +10%-10%
2.3 Resistance law A

 Use

 

@ all kinds of instruments, meters

 

# Recommended installation method: Insert the PCB Potentiometer lead within its closely aligns with tin solder firmly.

 

# Recommended adjust Methods: Cross slot screwdriver to adjust.

 

Electrical properties:

 

2.0 Electrical Performance

 

2.1 Nominal resistance range of   10Ω ~ 5MΩ

 

2.2 Resistance Tolerance              ± 10%

 

2.3 Resistance law       A (straight line)

 

2.4 rated power     (70 °C) 0.25W (nominal resistance> 50KΩ)

 

0.5W (nominal resistance of  ≤ 50KΩ)

 

2.5 Contact resistance variation    ≤ 3% R, or 5Ω (whichever is greater)

 

2.6 Temperature Coefficient of Resistance   ≤ ± 200 × 10 - 6 / °C (-55 °C ~ +125 °C)

 

2.7 zero resistance    ≤ 10Ω (100Ω ≤ R ≤ 1K)

 

                                  ≤ 1% R (R> 1K)

 

2.8 stability rating of   10%

 

2.9 resistors limit voltage    220 V (DC or AC RMS)

 

2.10 ambient temperature range   -55 °C ~ +125 °C

 

2.11 temperature change    ΔR ≤ ± 2% R Δ U12 / Δ U13 ≤ ± 1%

 

3.0 Mechanical properties

 

3.1 total mechanical travel   260 ° ± 10 °

 

3.2 starting torque   ≤ 35mN.m

 

3.3 solderable tin pot    235 °C ± 5 °C, 2S ± 0.5S, terminal dip

 

Taken out into the tin pot, stick tin area   > 90%.

 

 Environmental Testing

 5.1 Resistance change with temperature drying: the temperature is 55 °C ± 2 °C, relative temperature does not exceed ± 20% of the oven in place (24 ± 4) hours, the potentiometer taken out from the box should be placed with the appropriate desiccant dryer to cool and maintain the required test to begin.

                                  -55 °C ~ +20 °C Δ R / R ≤ ± 1.5%

                                  +20 °C ~ +70 °C Δ R / R ≤ ± 1%

                                   +20 °C ~ +125 °C Δ R / R ≤ ± 2.1%

 5.2 Climatic sequence

 

5.2.1 The drying temperature is 70 °C, for 16 hours, its appearance should be no visible damage, clearly marked;

 

5.2.2 Damp heat, cyclic test Db gradually from room temperature to 55 °C, maintained for some timeThe first cycle and then to room temperature for 24 hours in total;

 

5.2.3 cold temperature of -55 °C, for 2 hours, the starting torque ≤ 35mN.m;

 

5.2.4 Low pressure air pressure 8.5Kpa, test temperature of 15 °C ~ 35 °C

 Room, for 1 hour, the end of the testing process and test

Should be no breakdown or arc phenomena;

 

5.2.5 DC charge under Article 4.38.7 (The following articles are referenced general specification GB/T15298-94);

              Last check: a clear sign of its appearance, no visible damage, Δ R ≤ ± (3% R +0.5 Ω),

                 Insulation resistance ≥ 100MΩ,

                         Starting torque ≤ 35mN.m.

 

5.3 terminal when the terminal is in intensity to its normal position, and body components with the fixed, along its axial force to 5N added to terminal on the left component in the direction of body work, The tension should be (without any impact on land) is gradually applied, and then maintained (10 ± 1) seconds. Δ R ≤ ± (5% R +0.1 Ω), look no visible damage.

 

5.4 Resistance to soldering heat drying: temperature of 55 °C ± 2 °C, relative humidity less than 20% in the placement (24 ± 4) hours; Method 1A: the temperature of 350 °C ± 10 °C in the tin pot, to keep ( 5 ± 1) S, the Δ R ≤ ± (3% R +0.1 Ω).

 

5.5 Vibration frequency 10Hz ~ 500Hz, amplitude 0.75mm, in the three directions XYZ 2 hours each to maintain its appearance was no visible damage, Δ R ≤ ± (1% R +0.1 Ω), while there should be greater than 100us electrical discontinuity.

 

5.6 Impact acceleration: 390m/S2, 4000 collision,Δ R ≤ ± (1% R +0.1 Ω).

 

5. 7 70 °C temperature electrical durability of 70 °C ± 3 °C, rated voltage in the 1.3 client or the resistors limit voltage (whichever is the lesser), 1.5 hours to 0.5 hours electricity and power for the cycle, continued to 1000 hours, In 48 hours, 500 hours, 1000 hours when the checks clear signs of its appearance, no visible damage, in the 1.3 client Δ R ≤ ± (3% R +0.5 Ω);

 Temperature of 70 °C ± 3 °C, rated voltage of 1.2 side or resistors limit voltage (whichever is the lesser), of which two-side power stroke in 95% of office, 1.5 hours to 0.5 hours electricity and power for a period, continuous 1000 hours, 48 hours, 500 hours, 1000 hours when the checks clear signs of its appearance, 1.2 side  R ≤ ± (3% R +0.5 Ω),

 

All sample inspection at 1000 h, insulation resistance ≥ 1GΩ, CRV ≤ ± 3% R, or 5Ω (whichever big person).

 

5.8 Mechanical durability speed 5 to 10 cycles / min, rotating 200 weeks, its appearance was no visible damage, Δ R ≤ ± 5% R, CRV ≤ ± 3% R, or 5Ω (whichever is largest), with starting torque ≤ 35mN.m.

 

5.9 steady-state heat Article by 4.39.2.1, the first group of two samples, the second group of three samples, the third group of three samples;

 

According to Article 4.39.2.2, the first group of four samples, the second group of four samples;

 Last measurement: no visible damage its appearance, marking a clear resistance The resistance of Δ R ≤ ± 3% R, insulation resistance ≥ 100MΩ.

Supplier Details:

Genphoal Technology Co., Ltd.

Sales:Mr. Jones liu

Contact Phone:0086-0752-6288211

Main Products:Electrical Contacts and Contact Materials

Business type:Manufacturer, Trading Company

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