Is there a pin-compatible replacement for STC3MA06-T1?

Yes, other capacitors in SEHWA's STC3M series, like STC3MA03-T1 and STC3MB10-T1, share the same 3mm chip package and are pin-compatible. However, their electrical parameters like capacitance range and temperature coefficient differ, requiring engineering validation.

What risks should I check before replacing STC3MA06-T1?

When replacing STC3MA06-T1, the main risks are a mismatched capacitance range, which can prevent proper circuit tuning, and a different temperature coefficient (e.g., N750 vs. NPO), which can cause frequency drift with temperature changes. Also verify the Q factor meets your design's needs.

STC3MA06-T1 Alternatives, Datasheet & Cross Reference | Sehwa Electronics Co., Ltd.

The STC3MA06-T1 is a 3mm surface-mount trimmer capacitor from SEHWA with a 2pF to 6pF range, 100V rating, and stable NPO temperature coefficient. Finding a direct replacement requires matching these key parameters and the physical footprint.

AI replacement insight

Electrical riskhigh

Capacitance range and TC are critical for trimmer function and often cannot be changed without redesign.

Package risklow

Other parts in the same series share the same package, simplifying physical replacement.

Can it be replaced directly?

No direct drop-in replacement has been identified. Alternatives from the same manufacturer exist but have different capacitance ranges and temperature coefficients, requiring design review.

Best replacement path

Same-series parametric alternates like STC3MA03-T1 or STC3MB10-T1, if the different electrical parameters are acceptable.

Main risk

Mismatched capacitance range and temperature coefficient can lead to circuit malfunction or instability.

Recommended alternatives

Same series and package, but different capacitance range (3-10pF) and a much less stable N750 temperature coefficient.

View details

Alternative comparison matrix

Feature / factor	STC3MA06-T1	STC3MB10-T1	STC3MA03-T1	Compatibility / risk
Package	3mm Chip	3mm Chip	3mm	3mm Chip — Package matches, likely pin compatible.; STC3MA03-T1: Package matches, likely pin compatible.
Voltage	100V	100V	100V	100V — Voltage rating matches.; STC3MA03-T1: Voltage rating matches.
Capacitance	2pF to 6pF	3pF to 10pF	1.5pF to 3pF	3pF to 10pF / 1.5pF to 3pF — Range is different, starts higher and ends higher.; STC3MA03-T1: Range is narrower and does not fully cover target.
Temperature	NPO	N750	NPO ±300ppm	N750 / NPO ±300ppm — TC is significantly different and less stable than NPO.; STC3MA03-T1: Both are NPO, but tolerance is slightly wider.
Q Factor	500 min	600 min	300 min	600 min / 300 min — Q factor is higher, which is an improvement.; STC3MA03-T1: Q factor is significantly lower.

Application & sourcing insights

Questions & answers

The best alternatives are typically other parts within the same STC3M series, such as STC3MA03-T1 or STC3MB10-T1, but they have different capacitance ranges and electrical characteristics. Careful review of your circuit's tuning range and stability requirements is essential.