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Best Alternatives to SCR0402F21K

Package: 0402EVVOChip Resistor - Surface MountResistance: 21 kΩTolerance: ±1%Power Rating: 0.0625 WPackage/Case: 0402Operating Temperature: -55°C to +155°C

Find reliable alternatives for the SCR0402F21K, a 21kΩ 1% 1/16W 0402 thick film resistor. This guide reviews pin-compatible and parametric substitutes from leading manufacturers.

AI replacement insight

Electrical risklow

Low if key parameters (R, Tol, P, TCR) are matched.

Package risklow

0402 is a highly standardized package.

Sourcing risklow

This is a common resistor value with multiple sources.

Can it be replaced directly?

Direct replacement for SCR0402F21K should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Direct cross to another general-purpose thick film resistor like FRC0402F2102TS.

Main risk

The main risk is using a substitute with a different resistance value or a higher temperature coefficient (TCR), which could affect circuit performance.

Recommended alternatives

5
FRC0402F2102TS package
FRC0402F2102TS

FOJAN

Needs validationlow risk

Strong pin-compatible match with identical key electrical parameters and package.

View details

Alternative comparison matrix

Feature / factorSCR0402F21KFRC0402F2102TSRC-02K2102FTRT0402BRD0721KLCompatibility / risk
Package04020402040204020402 — Same standard 0402 package.; RC-02K2102FT: Same standard 0402 package.; RT0402BRD0721KL: Same standard 0402 package.; RC0402FR-0722K6L: Package matches.
Resistance21kΩ21kΩ21kΩ-21kΩ / 22.6kΩ — Resistance values match.; RC-02K2102FT: Resistance values match.; RC0402FR-0722K6L: Resistance differs by ~7.6%.
Tolerance±1%±1%±1%±0.1%±1% / ±0.1% — Tolerance values match.; RC-02K2102FT: Tolerance values match.; RT0402BRD0721KL: Candidate has tighter tolerance.; RC0402FR-0722K6L: Tolerance matches.
Power0.0625W0.0625W0.0625W-0.0625W — Power ratings match.; RC-02K2102FT: Power ratings match.; RC0402FR-0722K6L: Power rating matches.
TcrNot specified, assumed ±100 ppm/°C±100 ppm/°C-25 ppm/°C±100 ppm/°C / 25 ppm/°C — TCR matches typical general-purpose specs.; RT0402BRD0721KL: Candidate has a much better TCR.
TechnologyThick Film--Thin FilmThin Film — Technology differs, may affect pulse handling.

Application & sourcing insights

Questions & answers

Verified drop-in options for SCR0402F21K 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.