Product Description

WEIPENG® is a leading China manufacturers, suppliers and exporter of 3A Small Medical Infusion Mercury Waterproof Micro Switch

Product Introduction

As the core model in Yueqing Tongda's deep cultivation of waterproof switches, the FSK-20 series is positioned around the concept of 'miniature structure, high-performance waterproofing.' It is specifically designed for harsh environments such as damp, dusty, and outdoor conditions. With IP67 protection, a durability of millions of cycles, and flexible customization options, it is widely applicable in new energy vehicles, household appliances, industrial equipment, outdoor electronics, and more, making it the preferred solution for miniature waterproof control scenarios.

As a waterproof switch designed for automotive use, it is suitable for scenarios such as new energy vehicle charging guns, door status detection, and auxiliary control of battery packs. With an IP67 rating, it can withstand moisture during rainy-day charging and has no performance degradation after high and low temperature tests from -25℃ to 85℃, earning bulk orders from multiple car manufacturers.

The product is manufactured entirely on a fully automated precision assembly line, with key dimensional errors controlled within ±0.02mm. Each finished product undergoes eight rigorous tests, including high and low temperature cycling, salt spray corrosion, waterproof soaking, and one million presses. It has obtained ISO 9001 quality system certification as well as international safety certifications such as UL, VDE, CQC, and ENEC, complies with the RoHS environmental directive, maintains a 100% factory pass rate, and has an annual production capacity of 5 million units, capable of meeting large-scale bulk purchasing requirements.

Tongda Factory FAQ

Q1.:Do you have any certification about your factory or products?

A1:Of course,we have strong system certified,like IATF16949,ISO14001,UL,TUV,VDE,Rohs,Reach and related approvals.

Q2.What is your sample policy?

A2:Free sample could be provided within 5days,but express charge should be paid by customer.

Q3. What is your terms of packing?

A3: Generally, we pack goods in neutral boxes and brown cartons,or customized if qty reached.

Q4. What is your terms of payment?

A4: In common,T/T 30% as deposit, and 70% before delivery.,if the amount >2000USD

Product Specification

Switch Technical Characteristics:
ITEM	Technical parameter	Value
1	Electrical Rating	0.1A/1A/3A 250VAC
2	Operating Force	1.0-2.5N
6	Electrical Life	≥50000 cycles
7	Mechanical Life	≥100000 cycles
8	NO(Operating Position)	8.4±0.3mm
9	NC(Operating Position)	8.7±0.3mm
10	Vibration Proof	Vibration Frequency :10~55HZ Amplitude : 1.5mm Three directions :1H
11	Solder Ability :More than 80% of immersed part shall be covered with solder	Soldering Temperature : 235±5℃ Immersing Time :2~3S
12	Solder Heat Resistance	Dip Soldering :260±5℃ 5±1S Manual Soldering :300±5℃ 2~3S
13	Test Conditions	Ambient Temperature :20±5℃ Relative Humidity :65±5%RH Air Pressure :86~106KPa