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H1-2C / H1-2B 1-Pin Black Ceramic Automotive Connector — High-Temperature Headlamp Bulb Socket with Terminal
H1-2C / H1-2B 1-Pin Black Ceramic Automotive Connector High-Temperature Headlamp Bulb Socket with Terminal
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H1-2C / H1-2B 1-Pin Black Ceramic Automotive Connector — H1 Headlamp Bulb Socket
The H1-2C and H1-2B are 1-pin black ceramic automotive connectors designed as the wiring harness socket for H1 halogen headlamp bulbs. Unlike standard PA66 nylon connectors, the ceramic housing withstands the extreme radiant heat generated by H1 halogen bulbs — which can reach surface temperatures exceeding 300°C — without deforming, melting, or degrading over time. A direct OEM-compatible replacement for damaged or heat-cracked H1 headlamp sockets on passenger vehicles, motorcycles, and auxiliary lighting systems.
Key Specifications
| Parameter | Value |
|---|---|
| OEM Part Numbers | H1-2C / H1-2B |
| Compatible Bulb Type | H1 halogen (single-filament) |
| Pin Count | 1-pin |
| Housing Color | Black |
| Housing Material | Ceramic (high-temperature) |
| Terminal Material | Tin-plated copper alloy |
| Max Operating Temperature | >300°C (ceramic housing) |
| Current Rating | Up to 15A (H1 bulb: 55W/12V = 4.6A) |
| Sealing | Unsealed |
| Compliance | RoHS |
| Origin | Mainland China |
Why Ceramic Housing for Headlamp Connectors?
- Extreme heat resistance (>300°C) — H1 halogen bulbs generate intense radiant heat; standard nylon connectors crack, melt, and fail within months; ceramic housings last the life of the vehicle
- No thermal deformation — ceramic maintains dimensional stability at operating temperatures, ensuring consistent terminal contact pressure and reliable electrical connection
- Chemical resistance — ceramic is unaffected by the UV radiation, ozone, and heat cycling that degrade plastic connectors in headlamp assemblies
- OEM-compatible dimensions — H1-2C and H1-2B are manufactured to OEM mating dimensions for direct replacement without modification
- Direct replacement for cracked sockets — heat-cracked or melted H1 sockets are a common failure point; this connector restores the original electrical connection
H1-2C vs H1-2B — What’s the Difference?
The H1-2C and H1-2B are both 1-pin ceramic H1 sockets with minor dimensional or wire entry differences between variants. Both mate with standard H1 bulb bases. If replacing an existing socket, match the part number on your original connector, or measure the wire entry diameter to confirm the correct variant.
Package Contents
- 2× H1-2C or H1-2B ceramic connector housing
- Matching crimp terminals
Typical Applications
- H1 halogen headlamp (low beam / high beam / fog lamp) socket replacement
- Auxiliary and driving lamp H1 socket repair
- Motorcycle headlamp H1 socket replacement
- OEM headlight wiring harness repair
- Aftermarket HID/LED conversion harness H1 socket
Frequently Asked Questions
Q: Why did my original H1 socket crack or melt?
H1 halogen bulbs operate at very high surface temperatures. Over time, the radiant heat causes standard nylon connectors to become brittle, crack, and eventually melt — especially in enclosed headlamp assemblies with poor ventilation. Replacing with a ceramic socket permanently solves this problem, as ceramic is unaffected by the operating temperatures of H1 bulbs.
Q: Will this work with H1 HID or LED bulbs?
Yes — the H1-2C/H1-2B socket mates with any H1 base bulb, including halogen, HID (xenon), and H1-base LED retrofit bulbs. The ceramic housing is equally suitable for all H1 bulb types.
Q: How do I replace the H1 socket?
Cut the wiring harness close to the damaged socket, leaving enough wire length to work with. Strip 6–8mm of insulation from the wire, crimp the new terminal onto the wire using an automotive ratchet crimper, and insert the terminal into the ceramic housing until it clicks into place. Use heat-shrink tubing or self-amalgamating tape to protect the splice from moisture.
