
BZCN
Excellent form-fit match with identical electrical ratings, but has a noticeably lighter operating force.
Finding a substitute for the BZCN TSA002A3526B tactile switch involves matching its 260gf force, 12V/50mA rating, and 4.8x2.0x3.5mm horizontal SMD package. Alternatives may differ in operating force or physical footprint.
Key electrical ratings (12V, 50mA) are commonly matched by candidates.
Many candidates have different footprints, pin counts, or mounting styles, requiring PCB changes.
No direct drop-in replacement has been identified. The best candidate, TSA002A3518B, has a different operating force. All other options require PCB redesign.
TSA002A3518B is the closest alternative, matching form, fit, and electrical ratings, but has a lower operating force (180gf).
The primary risk is physical incompatibility (package size, pinout) or a change in tactile feel due to different operating force.

BZCN
Excellent form-fit match with identical electrical ratings, but has a noticeably lighter operating force.
| Feature / factor | TSA002A3526B | TSA002A3518B | TSA010A2026B | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4.8x2.0x3.5mm | 4.8x2.0x3.5mm | 3.9x3.0x2.0mm | 4.8x2.0x3.5mm / 3.9x3.0x2.0mm — Dimensions and mounting style match.; TSA010A2026B: Different footprint and height. | |
| Pinout | 2-pin Horizontal | 2-pin Horizontal | Vertical Mount | 2-pin Horizontal / Vertical Mount — Pin count and orientation match.; TSA010A2026B: Requires PCB redesign. | |
| Application | 260gf | 180gf | 260gf | 180gf / 260gf — Lighter tactile feel.; TSA010A2026B: Operating force matches. | |
| Voltage | 12V/50mA | 12V/50mA | 12V/50mA | 12V/50mA — Electrical ratings match.; TSA010A2026B: Electrical ratings match. |
BZCN's TSA002A3518B is the best alternative. It matches the package, pinout, and electrical ratings, but has a lower operating force of 180gf compared to the original's 260gf.