Is there a pin-compatible replacement for TC33X-2-202E?

No pin-for-pin compatible replacement has been verified. While several alternatives have the same 3-pin layout, they come in different package sizes (e.g., 4mm square) and require PCB layout changes.

What risks should I check before replacing TC33X-2-202E?

The main risk is physical incompatibility. Verify the substitute's package dimensions and land pattern against your PCB layout. Also, check if a change from single-turn to multi-turn adjustment affects your calibration process.

TC33X-2-202E Alternatives, Datasheet & Cross Reference | BOURNS

Reviewing alternatives for the Bourns TC33X-2-202E, a 2kΩ 3mm SMD trimmer. Key considerations for replacement are the 3mm package, power rating, and resistance value.

AI replacement insight

Package riskhigh

All suitable electrical alternatives are in a larger 4mm package, requiring a PCB redesign.

Electrical risklow

Proposed alternatives offer superior electrical characteristics (power, tolerance, TCR).

Can it be replaced directly?

No direct, drop-in replacement for TC33X-2-202E has been found. All viable alternatives require a larger PCB footprint.

Best replacement path

Upgrade to a 4mm multi-turn trimmer like 3224W-1-202E for better precision and electrical specs, if board space allows.

Main risk

Package incompatibility is the primary risk; all reviewed functional upgrades are in a larger 4mm package, not the target's 3mm.

Recommended alternatives

A multi-turn upgrade with higher power and tighter tolerance, but requires a larger 4mm PCB footprint.

View details

Alternative comparison matrix

Feature / factor	TC33X-2-202E	3224W-1-202E	3314G-1-202E	3314J-1-202E	Compatibility / risk
Package	3 mm SMD	4mm Square	4 mm Square	4mm Square	4mm Square / 4 mm Square — Not a drop-in replacement; requires PCB layout change.; 3314G-1-202E: Not a drop-in replacement; requires PCB layout change.; 3314J-1-202E: Not a drop-in replacement; requires PCB layout change.
Power	0.15W	0.25W	0.25W	0.25W	0.25W — Higher power rating provides more design margin.; 3314G-1-202E: Higher power rating provides more design margin.; 3314J-1-202E: Higher power rating provides more design margin.
Tolerance	25%	10%	20%	20%	10% / 20% — Tighter tolerance improves circuit precision.; 3314G-1-202E: Tighter tolerance than target.; 3314J-1-202E: Tighter tolerance than target.
Tcr	±250 ppm/°C	100 ppm/°C	±100 ppm/°C	±100 ppm/°C	100 ppm/°C / ±100 ppm/°C — Improved temperature stability.; 3314G-1-202E: Improved temperature stability.; 3314J-1-202E: Improved temperature stability.
Application	Single-turn	Multi-turn (12)	-	-	Multi-turn (12) — Offers finer adjustment than single-turn target.

Application & sourcing insights

Questions & answers

Candidates like the Bourns 3224W-1-202E offer upgraded performance (tighter tolerance, higher power, multi-turn) but require a larger 4mm footprint. No direct drop-in replacement has been identified.