1.00 mm Pitch, 4-Position ZIF — Board-Fit Context
The SFW4R-1STE9LF: The 4-position count suits small sensor, LED strip, or low-power signal links where board space is at a premium. The 2.70 mm height above board is a standard profile for this pitch class.
Tin Contacts and 20 Mating Cycles — Reconnect Duty
In a product that sees quarterly reconnects, the cycle budget covers five years; beyond that, the tin surface may fret and increase contact resistance. The ZIF mechanism eliminates insertion force on the FPC pads — the slide lock clamps the cable after insertion, which reduces wear on the flexible circuit compared to non-ZIF designs.
Active Lifecycle — Sourcing Posture
Peer Comparison — Tin vs Gold Contacts
The closest sibling is SFW4R-1STE1LF — identical pitch, positions, height, and tin plating, but with a black housing instead of brown. The only functional difference is cosmetic; both are active and interchangeable in the same footprint. For higher mating cycle life, the SFW4R-1STAE1LF swaps tin for gold contacts — same 1.00 mm pitch and 4 positions, but the gold interface supports more than 20 cycles in corrosive environments. The trade-off is a higher unit cost.