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DJ7104-1.5/3.5-11/21 Automotive 10-Pin Composite Connector — 1.5mm / 3.5mm Mixed Pitch Male Female Socket
DJ7104-1.5/3.5-11/21 Automotive 10-Pin Composite Connector 1.5mm / 3.5mm Mixed Pitch Male Female Socket
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DJ7104-1.5/3.5-11/21 Automotive 10-Pin Composite Connector — 1.5mm / 3.5mm Mixed Pitch
The DJ7104-1.5/3.5-11 (male plug) and DJ7104-1.5/3.5-21 (female socket) are 10-pin composite automotive connectors in the DJ series, featuring a mixed terminal pitch design combining 1.5mm signal terminals and 3.5mm power terminals in a single housing. This composite design is used in Chinese OEM vehicle wiring harnesses where a single connector must interface both low-current signal circuits and moderate-current power circuits — common in door modules, seat control assemblies, and HVAC actuator connectors on SAIC, FAW, Dongfeng, Chery, Geely, and BYD vehicles.
Key Specifications
| Parameter | Value |
|---|---|
| OEM Part Numbers | DJ7104-1.5/3.5-11 (male) / DJ7104-1.5/3.5-21 (female) |
| Series | DJ series (Chinese OEM standard) |
| Pin Count | 10-pin (composite) |
| Terminal Pitch | 1.5mm (signal) + 3.5mm (power) — mixed |
| Sealing | Unsealed |
| Housing Material | PA66 glass-filled nylon |
| Terminal Material | Tin-plated copper alloy |
| Signal Terminal Rating | Up to 7A (1.5mm) |
| Power Terminal Rating | Up to 10A (3.5mm) |
| Operating Temperature | -40°C to +125°C |
| Compatible Platforms | SAIC, FAW, Dongfeng, Chery, Geely, BYD, Great Wall |
| Compliance | RoHS |
DJ Series Composite Connector — Naming Convention
- DJ7104 — DJ7 = automotive connector, 10 = 10-pin, 4 = housing variant (composite)
- 1.5/3.5 — mixed terminal pitch: 1.5mm for signal cavities, 3.5mm for power cavities
- -11 / -21 — gender suffix: 11 = male plug (unsealed), 21 = female socket (unsealed)
- Composite design — the housing has two distinct cavity sizes; the smaller 1.5mm cavities are for signal terminals and the larger 3.5mm cavities are for power terminals
Typical Applications
- Chinese OEM door module connector repair (window motor + switch signal)
- Seat control module connector replacement on Chinese vehicles
- HVAC actuator assembly connector repair
- Mixed signal/power circuit connector replacement on DJ-harness vehicles
- Custom wiring harness fabrication for Chinese vehicle platforms
Frequently Asked Questions
Q: How do I identify which cavities use 1.5mm vs 3.5mm terminals?
The composite housing has two visually distinct cavity sizes — the smaller cavities (1.5mm) are for signal terminals and the larger cavities (3.5mm) are for power terminals. The cavity sizes are physically different and prevent inserting the wrong terminal size. Consult your vehicle’s wiring diagram for the specific pin assignment. As a general rule, signal circuits (sensor inputs, switch outputs, CAN bus) use the 1.5mm cavities, and power circuits (motor power, heating elements) use the 3.5mm cavities.
Q: What is the current rating difference between 1.5mm and 3.5mm terminals?
The 1.5mm terminal is rated for up to 7A continuous — suitable for sensor signals, switch outputs, and low-power actuator circuits. The 3.5mm terminal is rated for up to 10A continuous — suitable for window motor power, seat heating elements, and moderate-current actuators. Never use a 1.5mm terminal in a 3.5mm cavity for a high-current circuit — the undersized terminal will overheat and fail.
Q: Can I use DJ7104-1.5/3.5-21 as a replacement for a Sumitomo or TE composite connector?
No — DJ series connectors are a Chinese OEM standard with housing dimensions and terminal specifications specific to the DJ series. They are not interchangeable with Sumitomo, TE Connectivity, or other connector systems, even if the pin count and terminal pitches appear similar. Always use the correct OEM connector series for your vehicle to ensure proper mating and reliable electrical connection.
