Quality Inspection for Reverse Push Button Switch - manufacturer 4.5×4.5 4 pin DIP tact switch – Shouhan

5A INSULATION RESISTANCE

Measurements shall be made following Application of DC100V potential across terminals and across terminals and fuame for 1minute,100MΩ min

5B WITHSTAND VILTAGE

AC250V、50HZ、1 min（imin(interrupting current≤500uA). AC250V、50HZ、5C CONTACT CIRCUIT

Addition 1.5-2 time force on the top of the key strok and press the switch,DC50V100mA 100mΩ Max

5D SWITCH CONNECTION FLASH

Addition DC5V on the two side of switch,at a speed of 3-5time a sec.to press the switch.The flash time between open not more than 10ms.

6.MECHANICAL EFFICIENCY 6A CONTACT STRENGTH

The contact shall be capable of a rorce of 5N for 5

seconds in any directions.

Switch electric andmechanical efficiency does not break

6B CONTACT JOURNEY

6C DRIVE FORCE

Being measure at across spring piece and across

6D CONNECTION

STRENGTH

A force of 1N being appling in any directions of the

switch connection partt.Switch mechanical

efficiency does not break.

6E

MECHANICAL LIFE

Operatin at a rate of 30-50 cycles a minute. 以

Life:100000ycles

7.ENVIRONME

NT—-RESISTANT EFFICIENCY 7A CHANGE OF

TEMPERATURE

The first temperature shall be 70 ℃ ,3h and

changed to-25℃,0.5h,5cycles of above test.

1. The appearance

should not break.

2. Contact

resistance ≤ 100 M Ω

3. Insulation

resistance ≥ 100 M Ω.

7B HUMIDITY RESISTANT

40±2℃ in temperature and 90-95%RH,Ruring

thetest time without load; After testing

the temperature should be 24h.

8.IOINTING EFFICIENCY

8A SOLDERABILITY

Temperature260±5℃;Duration;3±0.5S

Solderability part

should above 90%

8B

SOLDER—RESISTANT

Warm-up temperature:100℃,40S,

Froth height of assist

solder should under

board and switch electric and mechanical efficiency does not break.

8C JOINTING—RESISTANT

Jointing temperature: 260 ± 5 ℃ ,Duration of

immersion: 5±1S.

efficiency does not break

8D NORMAL JOLNTING TIMES

≤2times