HF5F-24-ZSTF Super-Mini Sugar Cube Sealed Relay 24VDC SPDT 6A PCB Relay

The HF5F-24-ZSTF relay from Hongfa is a medium-power super-mini "Sugar Cube" sealed relay engineered for reliable switching in compact PCB-mounted electronic systems. Designed for industrial automation, appliance controls, security systems, timers, and embedded electronics, this relay combines compact dimensions with dependable switching performance.

Featuring a Form 1C (SPDT / 1c/o) contact configuration, the HF5F-24-ZSTF allows flexible switching between normally open and normally closed circuits, making it suitable for a wide variety of control and signal routing applications. Its 24VDC coil with 1280 resistance ensures stable and energy-efficient operation in low-power control systems.

The relay supports switching loads up to 6A/5A at 250VAC or 28VDC, with a maximum switching voltage of 277VAC/28VDC, making it ideal for lighting circuits, appliance control boards, low-power motors, alarm systems, and industrial control equipment. Its sealed housing protects the internal mechanism from dust, flux, and moisture contamination, improving durability and long-term reliability.

Designed with a Class F insulation system and capable of operating in ambient temperatures up to 105 C, the HF5F-24-ZSTF is suitable for demanding environments where thermal endurance and electrical safety are critical.

Features

Super-mini "Sugar Cube" sealed relay

Medium-power PCB relay design

Form 1C (SPDT / 1c/o) contact configuration

24VDC coil operation

1280 coil resistance

6A/5A switching capability

Maximum switching voltage up to 277VAC / 28VDC

Compact PCB through-hole mounting

Sealed construction for environmental protection

Class F insulation system

Maximum ambient temperature rating of 105 C

Suitable for compact industrial and electronic applications

Specifications

Model: HF5F-24-ZSTF

Brand: Hongfa

Device Type: Medium Power Super-Mini Sealed Relay

Contact Form: Form 1C (SPDT / 1c/o)

Termination Type: PCB Through-Hole

Coil Rated Voltage: 24VDC

AC/DC Voltage: DC

Electrical Rating: 6A/5A at 250VAC / 28VDC

Maximum Switching Voltage: 277VAC / 28VDC

Coil Resistance: 1280

Insulation Class: Class F

Maximum Ambient Temperature: 105 C

Ideal for industrial control systems, smart appliances, embedded electronics, HVAC controls, security equipment, timers, automation modules, and compact PCB applications requiring reliable SPDT relay switching in high-temperature operating environments.

What's in the box
1 x HF5F-24-ZSTF Super-Mini Sugar Cube Sealed Relay 24VDC SPDT 6A PCB Relay