Datasheet > PSP900KB-91R

PSP900KB-91R

更新时间： 2024-01-18 19:22:52

品牌	Logo	应用领域
国巨 - YAGEO		/
页数	文件大小	规格书
9页	292K
描述
水泥电阻

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数据手册

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PSP900KB-91R 数据手册

6. ENVIRONMENTAL CHARACTERISTICS

(1) Short Time Over Load Test

At 2.5 times of the rated voltage applied for 5 seconds, the resistor should be free from defects after the

resistor is released from load for about 30 minutes

Short Time Overload Voltage = 2.5* Power Rating Resistance Value

The change of the resistance value should be within ± 2.0 % + 0.05Ω

(2) Voltage Proof

The resistor shall be clamped in the trough of a 90° metal V Block. Apply the insulation voltage of 1000V

between the terminals connected together with the block for about 60 seconds.

The resistor shall be able to withstand without breakdown or flashover.

(3) Temperature Coefficient Test

Test of resistors above room temperature 100°C ± 2°C ( Testing Temperature 115°C to 130°C ) at the

constant temperature silicon plate for over 5 minutes. Then measure the resistance value.

The Temperature Coefficient is calculated by the following equation and its value should be within the

range of requested.

R  R₀

Re sistor Temperature Coefficient 



10⁶

R₀

t  t₀

＝ Resistance value under the testing temperature

R0 ＝ Resistance value at the room temperature

＝ The testing temperature

t_o＝ Room temperature

(4) Insulation Resistance

Apply "measuring voltage" between protective coating and termination for 1 min.,then measure. The

measuring voltage shall be either 100V±15V d.c. for resistors with an insulation voltage lower than 500V

or 500V±50V d.c. for resistors with an insulatin voltage equal to or greater than 500V.

The test resistance should be high than 1,000M ohm.

(5) Solderability

Immerse the specimen into the solder pot at 235 ± 5 °C for 3 ± 0.5 seconds.

At least 90% solder coverage on the termination.

(6) Solvent Resistance of Marking

The specimen into the appropriate solvent of IPA condition of ultrasonic machine for 5± 0.5 minutes.

The specimen is no deterioration of coatings and color code.

(7) Robustness of Terminations

Direct Load – Resistors shall be held by one terminal and the load shall be gradually applied in the

direction of the longitudinal axis of the resistor unit the applied load reached the requirement.

The load shall be held for 10 seconds. The load of weight shall be ≧ 2.5 kg ( 24.5N ).

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