HF33F-005-ZST Mini Sealed Relay 5VDC SPDT 3A PCB Compact Control Relay

The hf33f-005-zst relay from hongfa is a miniature sub-power sealed relay designed for compact pcb applications requiring reliable low-current signal and load switching. It features a form 1c (spdt) contact configuration, enabling flexible switching between normally open and normally closed outputs for control and logic circuits.

This relay operates with a 5vdc coil rated at 55 , making it well-suited for direct interface with low-voltage control systems such as microcontrollers, embedded electronics, and industrial control boards. Its efficient coil design ensures stable actuation while maintaining low power consumption, ideal for compact and energy-sensitive designs.

With a switching capacity of 3a at 250vac or 30vdc, the hf33f-005-zst is intended for light-duty applications such as signal routing, small loads, control logic interfaces, and auxiliary switching functions. It is particularly effective in systems where space is limited and full power relays are unnecessary.

The relay is built with a plastic-sealed housing to protect internal components from dust and environmental contamination, improving reliability in embedded and industrial environments. It also provides 8mm creepage distance and 1kv insulation strength, ensuring safe electrical separation between coil and contact circuits.

Features:
- mini sealed pcb relay for compact control applications
- form 1c (spdt) contact configuration
- 5vdc coil (55 ) for low-voltage control compatibility
- 3a switching capacity at 250vac / 30vdc
- plastic sealed housing for improved durability
- 8mm creepage distance for enhanced safety
- 1kv dielectric isolation between coil and contacts
- suitable for signal and low-power load switching
- compact footprint for space-constrained pcb designs
- reliable performance in control and automation circuits

Specifications:
- model: hf33f-005-zst
- device type: miniature sealed relay
- contact form: form 1c (spdt)
- coil rated voltage: 5vdc
- coil resistance: 55
- electrical rating: 3a at 250vac
- mounting type: pcb through-hole
- contact material: agcdo
- insulation voltage: 1kv

Ideal for control panels, signal switching systems, automation logic boards, appliance control circuits, and embedded electronics where compact size and low-current reliable switching are required.

What's in the box
1 x HF33F-005-ZST Mini Sealed Relay 5VDC SPDT 3A PCB Compact Control Relay