Hongfa Europe GMBH PCB Mount Power Relay, 5V dc Coil, 5A Switching Current, SPS
The HF49FD/005-1H11TF is part of the Hongfa HF49FD series, which consists of compact, high-sensitivity power relays. It operates using a 5 V DC coil and provides electrical isolation between the control circuit and the load, allowing low-power signals (e.g., from a microcontroller) to switch higher voltages or currents.
Key Characteristics
Type: Electromagnetic relay (non-latching)
Contact Configuration: SPST-NO (1 Form A, normally open)
Coil Voltage: 5 V DC
Switching Current: up to 5 A
Switching Voltage:
250 VAC
30 VDC
Mounting Type: Through-hole / PCB mount
Size: ~20 × 5 × 12.5 mm (slim design)
Coil Power Consumption: ~120 mW (low power)
Dielectric Strength: up to 3 kV isolation
Functional Overview
Uses a coil + mechanical contacts:
When 5 V is applied → coil energizes → contacts close
When removed → contacts open
Provides electrical isolation between:
control side (low voltage)
load side (higher voltage/current)
#Relay
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