HF3FA-012-ZSTF (136) Sugar Cube Relay 12VDC SPDT 10A Sealed PCB Relay

Descriptions:
- The HF3FA-012-ZSTF(136) relay from Hongfa is a compact high-power sub-miniature "Sugar Cube" sealed relay designed for reliable switching in PCB-based electronic systems. With a Form 1C (SPDT) contact configuration, it provides flexible control of both normally open and normally closed circuits, making it suitable for industrial control systems, appliance electronics, and automation applications.
- This version operates with a 12VDC coil rated at 400 , offering stable actuation characteristics suitable for standard control circuits, PLC outputs, embedded controllers, and relay driver interfaces. The coil design balances energy efficiency with dependable switching performance, ensuring consistent operation in long-term use.
- The HF3FA-012-ZSTF supports switching loads up to 10A at 250VAC and 5A at 125VAC, with a maximum switching voltage of 277VAC or 28VDC. It is well-suited for controlling motors, lighting systems, HVAC equipment, power supplies, heating elements, and general-purpose AC/DC loads across residential, commercial, and industrial applications.
- It's sealed "Sugar Cube" housing protects internal contacts from dust, flux, and environmental contamination, enhancing durability and ensuring stable electrical performance over time. Built with UL94 V-0 flame-retardant materials and Class F insulation, the relay provides strong thermal resistance and high electrical safety margins. It is also compatible with IEC 60335-1 appliance safety standards.

Features:
- High-power sub-mini "Sugar Cube" sealed relay
- Form 1C (SPDT) contact configuration
- Compact PCB standard footprint
- 12VDC coil with 400 resistance
- 10A switching capacity at 250VAC
- 5A switching capability at 125VAC
- Max switching voltage: 277VAC / 28VDC
- Sealed construction for improved reliability
- UL94 V-0 flame-retardant housing
- Class F insulation system for thermal durability
- CTI 250 material rating available
- IEC 60335-1 compliant design
- Suitable for industrial and appliance control systems

Specifications:
- Model: HF3FA-012-ZSTF(136)
- Brand: Hongfa
- Device Type: High Power Sub-Mini Sugar Cube Sealed Relay
- Contact Form: Form 1C (SPDT)
- Coil Rated Voltage: 12VDC
- Coil Resistance: 400
- Maximum Switching Current: 10A
- Electrical Rating: 10A at 250VAC / 5A at 125VAC
- Maximum Switching Voltage: 277VAC / 28VDC
- Insulation Class: Class F
- Flammability Rating: UL94 V-0
- Mounting Type: PCB Through-Hole
- Construction Type: Sealed

Ideal for appliance controls, HVAC systems, industrial automation, lighting control modules, smart devices, embedded electronics, and PCB switching applications requiring reliable SPDT relay performance with compact size and strong electrical insulation.

What's in the box
1 x HF3FA-012-ZSTF (136) Sugar Cube Relay 12VDC SPDT 10A Sealed PCB Relay