Super Miniature High Power Relay 20A is a compact PCB-mounted electromagnetic relay designed for high current switching applications where space efficiency and reliable performance are critical. With a switching capacity up to 20A, this miniature relay provides stable control of high-power loads in industrial equipment, home appliances, and electronic control systems.
As a direct manufacturer and supplier in China, we provide consistent quality, competitive pricing, and OEM/ODM customization for global B2B customers.
●Ultra-compact design for high-density PCB layout
●High switching capacity up to 20A for power control applications
●Stable performance under continuous heavy-load operation
●Low coil power consumption with high sensitivity
●Long electrical and mechanical service life
●Suitable for automated SMT/through-hole PCB assembly
●Reliable contact structure for industrial environments
1. Factory Direct Supply
We are a professional relay manufacturer in China, ensuring stable production capacity and competitive factory pricing.
2. High Load Reliability
Designed to handle high inrush current and continuous 20A load, ensuring stable operation in demanding environments.
3. Compact PCB Design
Ultra-miniature structure helps engineers reduce PCB footprint and improve system integration efficiency.
4. Strict Quality Control
Each relay undergoes electrical performance testing, contact resistance testing, and endurance verification before shipment.
5. OEM / ODM Customization
We support:
●Coil voltage customization
●Contact configuration design
●Housing structure adjustment
●Branding and packaging solutions
| Contact arrangment | A,B,C |
| Contact resistance | ≤100mΩ(1A 6VDC) |
| Contact material | Silver alloy:AgSnOlIn₂O₃、AgSnO₂、AgNi |
| Contact rating(Res.load) | 10A 125VAC,10A/20A 14VDC |
| Max switching voltage | 220VAC/16VDC |
| Max switching current | NO:35A NC:20A |
| Max switching power | 2200VA/320W |
| Electrical endurance Frequency:360 ops/h) | 1×10⁵ops/1×10⁴ops |
| Mechanical endurance(Frequency:18000 ops/h) | 1×10⁷ops |
| Power consumption(W) | 0.60W(L) | 0.80W(D) | ||||||||||
| Nominal voltage(VDC) | 05 | 06 | 09 | 12 | 18 | 24 | 05 | 06 | 09 | 12 | 18 | 24 |
| Coil resistance(Ω±10%) | 42 | 60 | 135 | 240 | 540 | 960 | 31.25 | 45 | 101 | 180 | 405 | 720 |
| Pick-up voltage(Max) | 75%(Nominal voltage) | |||||||||||
| Drop-out voltage(Min) | 10%(Nominal voltage) | |||||||||||
| Max allowable overdrive voltage(VDC) | 130%(Nominal voltage) | |||||||||||
| Insulation level | B/F | |
| Insulation resistance | 100MQ(500VDC) | |
| Dielectric strength(Leakage current 1mA) | Between coil and contacts | 1500VAC 1min |
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Between open contacts | 1000VAC 1min |
| Operate time(at nominal voltage) | ≤10ms | |
| Release time(without diode)(at nominal voltage) | ≤5ms | |
| Humidity | 5%～85%RH | |
| Ambient temperature | -40℃~+85℃/+105℃ | |
| Shock resistance | Functional | 98m/s² |
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Destructive | 980m/s² |
| Vibration resistance(Double amplitude) | 10Hz~55Hz 1.5mm | |
| Weight | Approx 6g | |
| Construction | Sealed Flux proofed | |
The 20A super miniature relay is widely used in various high-demand electrical control systems:
●Home appliance control systems (washing machines, air conditioners, refrigerators)
●Industrial automation equipment
●Power supply switching modules
●Smart home control systems
●Automotive electronics control units
●Heating, ventilation, and HVAC systems
●PCB-based power management systems
When selecting a 20A miniature relay, engineers should consider:
1. Load Type
Resistive load (heaters, lamps) → standard 20A relay suitable
Inductive load (motors, compressors) → requires higher surge resistance design
2. Coil Voltage
Choose based on system design:
●5V DC → low-voltage control boards
●12V DC → industrial control systems
●24V DC → automation equipment
3. Switching Frequency
For high-frequency switching applications, select relays with longer mechanical life ratings.
| Item | Miniature 20A Relay | Standard Relay |
|---|---|---|
| Size | Ultra-compact | Larger footprint |
| PCB Integration | High-density suitable | Limited |
| Current Capacity | Up to 20A | 10A–16A typical |
| Application | Modern compact devices | Traditional control systems |
| Efficiency | High integration | Lower integration |
Q1: Can this 20A relay be used for inductive loads?
Yes, but load characteristics such as motor starting current should be considered when selecting the model.
Q2: What is the lifespan of the relay?
Mechanical life can reach up to 10 million operations, depending on usage conditions.
Q3: Is it suitable for PCB mounting?
Yes, it is specially designed for PCB mounting and automated assembly processes.
Q4: Do you provide samples for testing?
Yes, sample orders are available for engineering evaluation before mass production.
Q5: Can I customize coil voltage or contact type?
Yes, OEM/ODM customization is supported based on project requirements.
Address
350 Renmin North Road, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China
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