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2026-3-13
What is a Mini Power Relay?

Mini Power Relay is an electromagnetic or solid-state switching device with a small size and compact structure. Its core function is to use small current (coil side) to control the on/off of large current/high voltage (contact side) to achieve electrical isolation, signal amplification and logic control of the circuit. It is a basic control component in industrial automation, consumer electronics, automotive electronics and other fields.
1. Coil Electrical Parameters
- Rated Coil Voltage
DC: 5V, 12V, 24V, 48V
AC: 6V, 12V, 24V, 110V, 220V
- Coil Power Consumption: 0.2–1W (<0.5W for low-power types)
- Coil Resistance: Dozens to thousands of ohms
- Pick-up Voltage: ≥75% of rated voltage
- Drop-out Voltage: ≤10% of rated voltage
- Max. Continuous Applied Voltage: ≤110% of rated voltage
2. Contact Electrical Parameters
- Contact Configuration
NO (Normally Open), NC (Normally Closed), Changeover (1NO+1NC)
1P/2P/4P changeover available
- Rated Contact Load (Resistive)
General-purpose: 5A 250VAC / 5A 30VDC
Low-power: 1A 30VDC / 3A 250VAC
High-current compact type: 10A 250VAC / 10A 30VDC
- Contact Material: AgNi, AgCdO, AgSnO
- Dielectric Strength
Coil to contact: ≥5kV AC
Between contacts: ≥1kV AC
- Contact Resistance: ≤100mΩ (initial value)
3. Mechanical & Operating Parameters
- Operate Time: ≤10ms
- Release Time: ≤5ms
- Mechanical Life: ≥10,000,000 operations
- Electrical Life: ≥100,000 operations (rated resistive load)
4. Environmental Parameters
- Operating Temperature: -40℃ to +85℃
- Storage Temperature: -55℃ to +125℃
- Operating Humidity: 5%–85%RH (non-condensing)
- Vibration / Shock: Compliant with general industrial requirements
5. Physical & Mounting Parameters
- Typical Dimensions: 19.0×10.0×15.5mm
- Mounting Style: Through-hole (DIP), SMD, socket type
- Pin Count: 5 pins (1P changeover), 8 pins (2P changeover), 14 pins (4P changeover)
- Weight: approx. 5–15g
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What is a Mini Power Relay?

Mini Power Relay is an electromagnetic or solid-state switching device with a small size and compact structure. Its core function is to use small current (coil side) to control the on/off of large current/high voltage (contact side) to achieve electrical isolation, signal amplification and logic control of the circuit. It is a basic control component in industrial automation, consumer electronics, automotive electronics and other fields.
1. Coil Electrical Parameters
- Rated Coil Voltage
DC: 5V, 12V, 24V, 48V
AC: 6V, 12V, 24V, 110V, 220V
- Coil Power Consumption: 0.2–1W (<0.5W for low-power types)
- Coil Resistance: Dozens to thousands of ohms
- Pick-up Voltage: ≥75% of rated voltage
- Drop-out Voltage: ≤10% of rated voltage
- Max. Continuous Applied Voltage: ≤110% of rated voltage
2. Contact Electrical Parameters
- Contact Configuration
NO (Normally Open), NC (Normally Closed), Changeover (1NO+1NC)
1P/2P/4P changeover available
- Rated Contact Load (Resistive)
General-purpose: 5A 250VAC / 5A 30VDC
Low-power: 1A 30VDC / 3A 250VAC
High-current compact type: 10A 250VAC / 10A 30VDC
- Contact Material: AgNi, AgCdO, AgSnO
- Dielectric Strength
Coil to contact: ≥5kV AC
Between contacts: ≥1kV AC
- Contact Resistance: ≤100mΩ (initial value)
3. Mechanical & Operating Parameters
- Operate Time: ≤10ms
- Release Time: ≤5ms
- Mechanical Life: ≥10,000,000 operations
- Electrical Life: ≥100,000 operations (rated resistive load)
4. Environmental Parameters
- Operating Temperature: -40℃ to +85℃
- Storage Temperature: -55℃ to +125℃
- Operating Humidity: 5%–85%RH (non-condensing)
- Vibration / Shock: Compliant with general industrial requirements
5. Physical & Mounting Parameters
- Typical Dimensions: 19.0×10.0×15.5mm
- Mounting Style: Through-hole (DIP), SMD, socket type
- Pin Count: 5 pins (1P changeover), 8 pins (2P changeover), 14 pins (4P changeover)
- Weight: approx. 5–15g







