HF46F 12VDC 5A SPST Sealed Power Relay

HF46F 12VDC 5A SPST Sealed Power Relay is a compact, high-quality electromagnetic relay designed for general-purpose switching applications. With a coil rated for 12V DC and capable of handling up to 5A at 250VAC or 30VDC, this SPST-NO relay is suitable for use in automation systems, security equipment, and household appliances.

Key Features:

• 12V DC Coil: Operates efficiently at low coil voltage for versatile control applications.
• 5A Contact Rating: Capable of switching AC and DC loads up to 5A.
• SPST-NO (1 Form A): Single-pole single-throw normally open contact configuration.
• Sealed Housing: Fully sealed to protect against dust and moisture.
• Miniature Size: Compact footprint ideal for PCB mounting in space-constrained designs.

Technical Specifications:

• Coil Voltage: 12V DC
• Coil Resistance: Approx. 320Ω ±10%
• Contact Rating: 5A at 250VAC / 30VDC
• Contact Material: AgNi (Silver Nickel)
• Operate Time: ≤10ms
• Release Time: ≤5ms
• Dielectric Strength: 5000V RMS between coil and contacts
• Insulation Resistance: ≥1000MΩ at 500VDC
• Contact Resistance: ≤100mΩ (initial)

Mechanical Specifications:

• Contact Configuration: SPST-NO (1 Form A)
• Terminals: PCB type
• Construction: Fully sealed plastic case
• Mount Type: Through-hole (THT)

Dimensions:

• Body Dimensions: 20.0mm x 10.0mm x 15.0mm (L x W x H)
• Pin Pitch: Standard 5.0mm and 0.5mm spacing
• Weight: Approx. 5g

Mounting Options:

• PCB Mounting: Directly fits into standard PCB footprints
• Socket Mounting: Optional with relay socket bases (not included)

Schematic Diagram, Connection, Wiring and Pinout:

• Pinout: 5 pins – 2 for coil, 2 for contact, 1 unused (or support tab)
• Coil Polarity: Connect 12V DC across the coil pins (no polarity protection built-in)
• Wiring: NO (Normally Open) contact closes when relay is energized

Datasheet/User Manual:

• Download HF46F 12V Relay Datasheet (PDF)

Applications:

• Home Appliances: Relays for AC fans, refrigerators, and washing machines
• Security Systems: Alarm triggering and output isolation
• DIY Projects: Widely used in Arduino, ESP32, and Raspberry Pi projects
• Industrial Control: Switching solenoids, motors, and contactors
• Automated Lighting: Control of LED strips or 230V lights with microcontrollers

Equivalent:

• JQC-3FF 12V: Same size, pinout, and rating
• Songle SRD-12VDC-SL-C: Popular blue relay alternative
• Omron G5LE-1 12VDC: Premium-grade SPST-NO relay with similar specs

Package Includes:

• 1 x HF46F 12VDC 5A SPST Sealed Power Relay