What risks should I check before replacing STC3MA03-T1?

Key risks include mismatched capacitance range, different temperature coefficients (e.g., N750 vs. NPO), and physical package/pinout differences. Always verify these critical parameters in your application's context.

STC3MA03-T1 Alternatives, Datasheet & Cross Reference | Sehwa Electronics Co., Ltd.

STC3MA03-T1 is a 1.5-3pF NPO trimmer capacitor from SEHWA in a 3mm package. Finding a replacement requires matching the capacitance range, NPO temperature coefficient, and physical footprint for tuning applications.

AI replacement insight

Electrical riskhigh

Capacitance range and temperature coefficient are critical and differ in most candidates.

Package riskmedium

Package names differ slightly (e.g., '3mm' vs '3mm Chip'), requiring datasheet verification for footprint compatibility.

Can it be replaced directly?

Direct replacement for STC3MA03-T1 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Evaluate other STC3M series parts with NPO coefficients, like STC3MA06-T1, while carefully checking the capacitance range.

Main risk

The main risk is functional failure due to mismatched capacitance range or temperature coefficient, which is critical in tuning and filter circuits.

Recommended alternatives

A potential alternative from the same series with better performance, but a different capacitance range.

View details

Alternative comparison matrix

Feature / factor	STC3MA03-T1	STC3MA06-T1	STC3MB10-T1	Compatibility / risk
Capacitance	1.5-3pF	2-6pF	3-10pF	2-6pF / 3-10pF — Higher minimum capacitance (2pF vs 1.5pF).; STC3MB10-T1: Adjustment range is completely different.
Temperature	NPO ±300ppm/°C	NPO ±200ppm/°C	N750	NPO ±200ppm/°C / N750 — Same TC type, better stability.; STC3MB10-T1: Different TC type (N750 vs NPO), not functionally equivalent.
Voltage	100V	100V	100V	100V — Voltage rating matches.; STC3MB10-T1: Voltage rating matches.
Q Factor	300 min	500 min	600 min	500 min / 600 min — Higher Q is an improvement.; STC3MB10-T1: Higher Q is generally better.
Package	3mm	3mm Chip	3mm Chip	3mm Chip — Package name differs, requires verification.; STC3MB10-T1: Package name differs, requires verification.
Pinout	2	null	-	null — Pin count is missing for candidate.

Application & sourcing insights

Questions & answers

Verified drop-in options for STC3MA03-T1 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.