Is there a pin-compatible replacement for TSC015A03518A?

No, a verified pin-compatible replacement is not available. While candidates like TSC015A04818B share the same PCB footprint, their actuator height is different, which prevents them from being a direct drop-in replacement without mechanical verification.

What risks should I check before replacing TSC015A03518A?

The main risk is mechanical fit. All identified alternatives have a different actuator height. You must check if the new height (e.g., 4.8mm for TSC015A04818B) fits your enclosure and is compatible with your actuator cap. Some options also have a different operating force, which would change the user feel.

TSC015A03518A Alternatives, Datasheet & Cross Reference | Zhejiang Bozhong Electric Co., Ltd.

TSC015A03518A is a 4.5x4.5mm SMD tactile switch with a 3.5mm height. While no direct drop-in replacement has been identified, several functional alternatives from the same series are available with a matching footprint but different actuator heights.

AI replacement insight

Package riskhigh

Actuator height differs in all candidates, requiring mechanical design review.

Electrical risklow

Key electrical ratings (12V, 50mA) are matched by candidates.

Can it be replaced directly?

No direct drop-in replacement for TSC015A03518A has been verified. All same-series alternatives have a different actuator height.

Best replacement path

TSC015A04818B offers the same operating force and electrical ratings but has a taller actuator (4.8mm vs 3.5mm), requiring a mechanical check.

Main risk

The primary risk is mechanical incompatibility. All potential substitutes have a different actuator height than the original part.

Recommended alternatives

Alternative with same footprint and operating force, but a taller actuator (4.8mm vs 3.5mm).

View details

Alternative comparison matrix

Feature / factor	TSC015A03518A	TSC015A04818B	TSC015A05026A	Compatibility / risk
Application	Tactile Switch	Tactile Switch	-	Tactile Switch — Both are 4-pin SMD tactile switches.
Package	4.5x4.5mm, 4-pin	4.5x4.5mm, 4-pin	4.5x4.5mm, 4-pin	4.5x4.5mm, 4-pin — Footprint matches, enabling potential PCB reuse.; TSC015A05026A: Footprint matches.
Height	3.5mm	4.8mm	5.0mm	4.8mm / 5.0mm — Candidate is taller, requires mechanical clearance check.; TSC015A05026A: Candidate is significantly taller.
Operating Force	180gf	180gf	260gf	180gf / 260gf — Identical operating force ensures same user feel.; TSC015A05026A: Higher force will change user feel.
Voltage Current	12V/50mA	12V/50mA	12V/50mA	12V/50mA — Electrical ratings are identical.; TSC015A05026A: Electrical ratings match.

Application & sourcing insights

Questions & answers

The best alternative is likely TSC015A04818B. It has the same 4.5x4.5mm footprint, 180gf operating force, and electrical ratings, but its height is 4.8mm, which is taller than the original's 3.5mm. You must verify mechanical clearance.