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Flex PCB Connector Types
| Type | Pitch | Pins | Cycles | Height | Application |
|---|---|---|---|---|---|
| ZIF | 0.3-1.0 mm | 4-60 | 10-30 | 1.0-2.5 mm | Konsumentelektronik |
| LIF | 0.5-1.25 mm | 6-50 | 50-100 | 1.5-3.0 mm | Industriell, fordon |
| BTB | 0.35-0.8 mm | 10-240 | 30-100 | 0.6-1.5 mm | Module interconnect |
"About 40% of flex PCB connector failures trace back to contact side mismatch. Always verify orientation against your flex stackup before sending Gerber files."
— Hommer Zhao, FlexiPCB Engineering Director
Key Specifications
| Pitch | Min Trace/Space | Use Case |
|---|---|---|
| 0.3 mm | 0.10/0.10 mm | Smartphones, wearables |
| 0.5 mm | 0.15/0.15 mm | General consumer |
| 0.8 mm | 0.20/0.20 mm | Industriell, fordon |
Flex PCB Design Guidelines | Stiffener Guide
Gold Plating
| Type | Thickness | Cycles | Cost |
|---|---|---|---|
| ENIG | 0.05-0.10 um | ≤20 | Low |
| Hard Gold | 0.20-0.75 um | ≤500 | Medium-High |
"We reject about 5% of incoming flex PCBs at connector inspection due to insufficient plating thickness."
— Hommer Zhao, FlexiPCB Engineering Director
Manufacturers
| Manufacturer | Series | Min Pitch | Feature |
|---|---|---|---|
| Hirose | FH12, BM28 | 0.25 mm | Widest pitch range |
| Molex | Easy-On | 0.30 mm | Back-flip ZIF |
| TE Connectivity | AMPMODU | 0.30 mm | Automotive qualified |
"For most consumer flex PCB designs, start with Hirose FH12 at 0.5 mm pitch."
— Hommer Zhao, FlexiPCB Engineering Director
EMI Shielding Guide | Cost Guide
FAQ
ZIF vs LIF? ZIF: zero force, 10-30 cycles. LIF: low force, 50-100 cycles.
Correct flex tail thickness? Sum all layers. Must be 0.20-0.30 mm.
ZIF for high-speed signals? Up to ~1 GHz. Above that, use BTB connectors.
References
Contact us for connector selection help.
