Core Advantages: Precisely Matching the Operating Needs of High-Power Home Appliances
1. Ultra-High Safety Protection, Fortifying the Power Barrier for Home Appliances
High-power home appliances are prone to voltage fluctuations during operation. The SMI(14F) Relay features an ultra-high dielectric strength of 5kV, far exceeding industry standards, effectively resisting instantaneous voltage surges and eliminating leakage and short-circuit risks. This safeguards the power safety of core components such as air conditioner compressors and washing machine/dryer motors. Simultaneously, the 1000VAC dielectric strength between contacts and 1000MΩ high insulation resistance further enhance insulation performance. Coupled with UL, VDE, and CQC triple authoritative safety certifications, it fully meets the safety compliance requirements of the global home appliance industry, eliminating manufacturers' concerns about compliance and market access.
2. Stable Load Capacity + Low Consumption and Durability, Adapting to Long-Term Home Appliance Operation
Designed for the long-term, high-frequency operation characteristics of home appliances, the product boasts a stable load capacity of 10A 250VAC/30VDC, easily handling the power transmission needs of high-power components such as air conditioner cooling/heating switching, dishwasher high-pressure water pumps, and ice maker compressors. The ultra-low contact resistance of ≤50mΩ significantly reduces energy loss and contact heating, preventing performance degradation or malfunctions caused by overheating during long-term operation. With an electrical life of 1 × 10⁵ cycles and a mechanical life of 1 × 10⁷ cycles, it remains stable and reliable even when facing the high-frequency start-stop cycles of washing machine/dryer spin cycles and the continuous operation of refrigerators, significantly reducing the after-sales repair rate of home appliances.
3. Wide Range Adaptation + Flexible Compatibility, Simplifying Home Appliance Design and Assembly
The SMI(14F) Relay supports a wide operating temperature range of -40℃~+85℃, perfectly adapting to different operating environments – whether it's an air conditioner outdoor unit exposed to direct sunlight on a balcony, a dishwasher in a high-temperature kitchen, or an ice maker in a low-temperature storage room, it can operate normally without being affected by ambient temperature. With a wide nominal voltage range of 5~48VDC, it seamlessly integrates with the power supply systems of various home appliances; three contact configurations (A/B/C) precisely match different circuit logics such as air conditioner fan speed control, refrigerator defrost control, and dishwasher program switching, allowing for integration without requiring additional circuit modifications. Its ultra-light weight of 13g and direct PCB mounting design neither increases the overall weight of the appliance nor complicates the production line assembly process, thus improving mass production efficiency.
Heavy load, suitable for heavy power reverse
Small size, suitable for high-density mounting
5kV dielectric strength
(between coil and contacts)
| Parameter | Value |
| Contact arrangement | A/B/C |
| Contact rating | 10A 250VAC/30VDC |
| Contact resistance | ≤50mΩ |
| Electrical endurance | 10⁵ / 10⁴ |
| Mechanical endurance | 10⁷ |
| Parameter | Value |
| Nominal voltage | 5–48VDC |
| Power dissipation | 0.54W, 0.72W |
| Pick-up voltage (Max) | 80% of nominal voltage |
| Drop-out voltage (Min) | 5% of nominal voltage |
| Parameter | Value |
| Ambient temperature (°C) | −40°C~+85°C |
| Dielectric strength (Coil & contacts, 1min) | 5000VAC |
| Dielectric strength (Open contacts, 1min) | 1000VAC |
| Insulation resistance (500VDC) | 1000MΩ |
| Wiring diagram (Bottom view) |
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| Installation hole drawing (Bottom view) | |
| Termination | P.C.B. |
| Weight | 13g |
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Safety approval |
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Address
CW7, Area A, Zhejiang Yuandong Industrial City, Yuyao City, Zhejiang Province, China
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