China Wholesale Momentary Push Button Switch Normally Open Pricelist - DK4-AZ-004 – Tongda
China Wholesale Momentary Push Button Switch Normally Open Pricelist - DK4-AZ-004 – Tongda Detail:
The defining characteristics of operation | Operating Parameter | Value | Units |
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Free Position FP | 15.9±0.2 | mm |
Operating Position OP | 14.9±0.5 | mm | |
Releasing Position RP | 15.2±0.5 | mm | |
Total travel Position | 13.1 | mm | |
Operating Force OF | 0.25~4 | N | |
Releasing Force RF | — | N | |
Total travel Force TTF | — | N | |
Pre Travel PT | 0.5~1.6 | mm | |
Over Travel OT | 1.0Min | mm | |
Movement Differential MD | 0.4Max | mm |
Switch technical Characteristics
ITEM | technical parameter | Value | |
1 | Contact Resistance | ≤30mΩ Initial value | |
2 | Insulation Resistance | ≥100MΩ500VDC | |
3 | Dielectric Voltage | between non-connected terminals | 1000V/0.5mA/60S |
between terminals and the metal frame | 3000V/0.5mA/60S | ||
4 | Electrical Life | ≥50000 cycles | |
5 | Mechanical Life | ≥1000000 cycles | |
6 | Operating Temperature | -25~125℃ | |
7 | Operating Frequency | electrical:15 cycles Mechanical:60 cycles |
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8 | Vibration Proof | Vibration Frequency:10~55HZ; Amplitude:1.5mm; Three directions:1H |
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9 | Solder Ability: More than 80% of immersed part shall be covered with solder | Soldering Temperature:235±5℃ Immersing Time:2~3S |
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10 | Solder Heat Resistance | Dip Soldering:260±5℃ 5±1S Manual Soldering:300±5℃ 2~3S |
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11 | Safety Approvals | UL,CSA,VDE,ENEC,TUV,CE,KC,CQC | |
12 | Test Conditions | Ambient Temperature:20±5℃ Relative Humidity:65±5%RH Air Pressure:86~106KPa |
Switch application: widely used in various household appliances, electronic equipment, automation equipment, communication equipment, automotive electronics, power tools and other fields.
Product detail pictures:

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Our well-equipped facilities and great excellent command throughout all stages of generation enables us to guarantee total customer fulfillment for China Wholesale Momentary Push Button Switch Normally Open Pricelist - DK4-AZ-004 – Tongda , The product will supply to all over the world, such as: Belize , New Zealand , Congo , Due to our strict pursues in quality, and after-sale service, our product gets more and more popular around the world. Many clients came to visit our factory and place orders. And there are also many foreign friends who came for sight seeing, or entrust us to buy other stuff for them. You are most welcome to come to China, to our city and to our factory!

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