What risks should I check before replacing 2N7002KW?

Key risks include differences in power dissipation (Pd), drain-source voltage (Vdss), and gate threshold voltage (Vgs(th)). A substitute with lower ratings can lead to device failure. Always verify the substitute's datasheet against your application's needs.

2N7002KW Alternatives, Datasheet & Cross Reference | Yangjie Technology

2N7002KW is a general-purpose 60V, 300mA N-Channel MOSFET in a SOT-323 package, used for switching and amplification. Finding a replacement requires checking voltage, power, and gate drive compatibility.

AI replacement insight

Electrical riskhigh

Candidates have different power, voltage, and Vgs(th) ratings.

Package riskmedium

One candidate has a different package; others match but pinout needs verification.

Firmware risklow

Not applicable for this discrete component.

Can it be replaced directly?

Direct replacement for 2N7002KW should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Review 2N7002BKW,115 for applications that can tolerate slightly lower power dissipation and a higher gate threshold voltage.

Main risk

The main risks are substituting with a part that has lower voltage or power ratings, which could lead to premature failure.

Recommended alternatives

A potential alternative in the same SOT-323 package, but with a lower power rating and slightly different gate drive requirements.

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Alternative comparison matrix

Feature / factor	2N7002KW	2N7002BKW,115	2N7002	BSS138BKW	Compatibility / risk
Package	SOT-323	SC-70, SOT-323	SOT-23	SOT-323	SC-70, SOT-323 / SOT-23 — Package is form-factor compatible.; 2N7002: Different package requires board redesign.; BSS138BKW: Package is form-factor compatible.
Voltage	60V	60V	60V	55V	60V / 55V — Drain-Source voltage matches.; 2N7002: Drain-Source voltage matches.; BSS138BKW: Lower voltage rating is a critical downgrade.
Current	300mA	310mA	300mA	300mA	310mA / 300mA — Slightly higher current rating is acceptable.; 2N7002: Continuous drain current matches.; BSS138BKW: Continuous drain current matches.
Power	350mW	275mW	350mW	313mW	275mW / 350mW / 313mW — Lower power dissipation is a downgrade risk.; 2N7002: Power dissipation matches.; BSS138BKW: Lower power dissipation is a downgrade risk.
Vgs(Th)	1.0V - 2.0V	2.1V	-	1.6V	2.1V / 1.6V — Higher threshold may affect turn-on with low voltage logic.; BSS138BKW: Threshold voltage is within the target range.

Application & sourcing insights

Questions & answers

Verified drop-in options for 2N7002KW 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.