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FW-C-9M-B / FW-C-9F-B Automotive 9-Pin 2.3mm Waterproof Connector — Furukawa Male Female Socket for Car
FW-C-9M-B / FW-C-9F-B Automotive 9-Pin 2.3mm Waterproof Connector Furukawa Male Female Socket for Car
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FW-C-9M-B / FW-C-9F-B Automotive 9-Pin 2.3mm Waterproof Connector — Furukawa
The FW-C-9M-B (male plug) and FW-C-9F-B (female socket) are 9-pin waterproof automotive connectors from the Furukawa Electric FW-C series, featuring a 2.3mm terminal pitch and sealed housing with individual wire seals. Furukawa Electric is one of Japan’s largest automotive wiring harness manufacturers, supplying sealed connector systems to Honda, Nissan, Mitsubishi, and Mazda. The FW-C series sealed connectors are used for ECU, sensor, and body control module applications requiring moisture protection in underhood and chassis environments.
The 9-pin configuration provides a versatile circuit count for sensor assemblies, BCM interfaces, and multi-function actuator connectors. The 2.3mm terminal pitch balances circuit density with current-carrying capacity — suitable for mixed signal and low-power circuits up to 5A per terminal. The sealed design with individual wire seals provides IP67-equivalent moisture protection.
Key Specifications
| Parameter | Value |
|---|---|
| Part Numbers | FW-C-9M-B (male) / FW-C-9F-B (female) |
| Manufacturer | Furukawa Electric |
| Pin Count | 9-pin |
| Terminal Pitch | 2.3mm |
| Housing Color | Black |
| Sealing | Waterproof (sealed housing + wire seals) |
| Housing Material | PA66 glass-filled nylon |
| Terminal Material | Tin-plated copper alloy |
| Wire Range | 0.3–0.85mm² (22–18 AWG) |
| Current Rating | Up to 5A per terminal |
| Operating Temperature | -40°C to +85°C |
| Compatible Platforms | Honda, Nissan, Mitsubishi, Mazda (Furukawa harness) |
| Compliance | RoHS |
Furukawa FW-C Sealed Series — Key Features
- Furukawa Electric OEM standard — FW-C series sealed connectors are used in Honda, Nissan, and Mitsubishi underhood and chassis wiring harnesses for sensor and ECU applications requiring moisture protection
- Individual wire seals — each terminal position has an individual wire seal providing IP67-equivalent moisture protection at the wire entry point
- 2.3mm pitch for mixed circuits — the 2.3mm terminal pitch accommodates both signal circuits (sensor inputs, switch outputs) and low-power actuator circuits (up to 5A) in a single connector
- Black housing for underhood identification — black housing is standard for underhood sealed connectors; distinguishable from interior unsealed connectors which may use color coding
Typical Applications
- Honda / Nissan underhood sealed sensor connector repair
- ECU and BCM sealed connector replacement on Furukawa-harness vehicles
- ABS/ESP sensor connector repair
- Custom sealed wiring harness fabrication for Japanese vehicle platforms
Frequently Asked Questions
Q: What is the difference between FW-C-9M-B and FW-C-9F-B?
FW-C-9M-B is the male plug — it has pin terminals and is typically on the component (ECU, sensor) side. FW-C-9F-B is the female socket — it has socket terminals and is typically on the wiring harness side. The “B” suffix indicates the black housing color variant. Both connectors are a matched pair that mate together. Always verify the gender of your original connector before ordering.
Q: How do I install the wire seals correctly on FW-C series connectors?
Thread the wire seal onto the wire before stripping the insulation and crimping the terminal. After crimping, slide the wire seal up to the terminal’s insulation barrel. When the terminal is inserted into the housing, the wire seal seats in the housing entry hole, creating the waterproof seal. If the wire seal is installed after crimping, it cannot pass over the terminal and the connector will not seal properly. This is the most common assembly error with sealed connectors.
Q: Can FW-C-9M-B / FW-C-9F-B be used as a matched pair for a custom sealed wiring harness?
Yes — the FW-C-9M-B and FW-C-9F-B are a matched connector pair that mate together. They can be used to create a new 9-pin sealed disconnect point in a custom wiring harness, add a service connector for easy component removal in a wet environment, or replace a damaged connector pair in an existing harness. Use 2.3mm Furukawa-compatible crimp terminals and a precision ratchet crimper for reliable terminal connections.
