Is there a pin-compatible replacement for STC3MB10-T1?

While other capacitors in the SEHWA STC3M series share the same 3mm SMD package and are likely form-fit compatible, no direct pin-to-pin replacement with identical electrical parameters has been identified. All candidates require engineering review.

What risks should I check before replacing STC3MB10-T1?

When replacing STC3MB10-T1, you must check the capacitance adjustment range, temperature coefficient (N750 vs. NPO), and Q factor. Mismatches can affect circuit tuning, stability over temperature, and signal integrity in RF applications.

STC3MB10-T1 Alternatives, Datasheet & Cross Reference | Sehwa Electronics Co., Ltd.

The SEHWA STC3MB10-T1 is a 3mm surface-mount trimmer capacitor with a 3-10pF range and 100V rating. Alternatives exist within the same STC3M series, but require careful review of capacitance range and temperature coefficient.

AI replacement insight

Electrical riskhigh

Candidates have different capacitance ranges, temperature coefficients, and Q-factors.

Package risklow

Same-series alternatives share the same 3mm SMD footprint, but datasheet verification is advised.

Can it be replaced directly?

No direct, drop-in replacement for STC3MB10-T1 has been found. All known alternatives require a review of key electrical parameters.

Best replacement path

Explore other options within the SEHWA STC3M series for package compatibility, but expect parametric differences.

Main risk

The primary risk is a mismatch in the capacitance adjustment range, which could prevent the circuit from being tuned correctly.

Recommended alternatives

Same package and voltage, but different capacitance range and temperature coefficient. Requires engineering review.

View details

Alternative comparison matrix

Feature / factor	STC3MB10-T1	STC3MA06-T1	STC3MA03-T1	STC3ME30-T1	Compatibility / risk
Package	3mm Chip	3mm Chip	3mm	3mm SMD	3mm Chip / 3mm SMD — Package name matches, likely same footprint.; STC3MA03-T1: Package name differs slightly but likely same footprint.; STC3ME30-T1: Package name differs slightly but likely same footprint.
Voltage	100V	100V	100V	100V	100V — Voltage rating is identical.; STC3MA03-T1: Voltage rating is identical.; STC3ME30-T1: Voltage rating is identical.
Capacitance	3pF to 10pF	2pF to 6pF	1.5pF to 3pF	8pF to 28.5pF	2pF to 6pF / 1.5pF to 3pF / 8pF to 28.5pF — Does not cover target's required range.; STC3MA03-T1: Significantly smaller range than target.; STC3ME30-T1: Range is shifted higher, only overlaps from 8-10pF.
Temperature	N750 ±400ppm/°C	NPO ±200ppm/°C	NPO ±300ppm/°C	N1300 ±400ppm/°C	NPO ±200ppm/°C / NPO ±300ppm/°C / N1300 ±400ppm/°C — Different temperature coefficient may affect circuit stability.; STC3MA03-T1: Different temperature coefficient.; STC3ME30-T1: Different temperature coefficient.
Q Factor	600 min	500 min	300 min	250 min	500 min / 300 min / 250 min — Lower Q factor may increase losses in RF circuits.; STC3MA03-T1: Significantly lower Q factor.; STC3ME30-T1: Significantly lower Q factor.

Application & sourcing insights

Questions & answers

The best alternatives are typically other parts from the same SEHWA STC3M series, as they share the same package. However, parts like STC3MA06-T1 have different capacitance ranges (2-6pF) and must be verified for your application's tuning requirements.