Is there a pin-compatible replacement for CR0805-FX-5621ELF?

While several 0805 package resistors are available, no direct drop-in replacement has been verified. Candidates like AC0805FR-075K9L and RT0805BRD075K6L have the same package but require engineering review for parametric differences.

What risks should I check before replacing CR0805-FX-5621ELF?

Key risks include: 1) Resistance deviation, as substitutes may not be exactly 5.62kΩ. 2) Technology mismatch (Thick vs. Thin Film), which affects stability and pulse handling. 3) Power rating, ensure the substitute can handle the same or higher power with sufficient derating.

CR0805-FX-5621ELF Alternatives, Datasheet & Cross Reference | BOURNS

Finding a replacement for the Bourns CR0805-FX-5621ELF 5.62kΩ 1% resistor requires careful matching of electrical parameters. While several 0805 package resistors exist, key differences in technology, resistance value, and power rating must be reviewed.

AI replacement insight

Electrical riskmedium

Resistance deviation and technology mismatch require analysis.

Package risklow

All viable candidates share the 0805 package.

Sourcing risklow

Candidates are from a major manufacturer (Yageo).

Can it be replaced directly?

No direct, drop-in replacement is confirmed. All candidates require engineering review due to parametric deviations.

Best replacement path

The best path is to evaluate AC0805FR-075K9L, which matches the core technology, but requires validating the circuit's tolerance to a +5% resistance shift.

Main risk

The main risk is functional failure or reduced performance due to differences in resistance value and resistor technology (Thick vs. Thin Film).

Recommended alternatives

A high-precision alternative in the same package, but uses different resistor technology requiring engineering review.

View details

Alternative comparison matrix

Feature / factor	CR0805-FX-5621ELF	RT0805BRD075K6L	AC0805FR-075K9L	Compatibility / risk
Package	0805	0805	0805	0805 — Form factor matches.; AC0805FR-075K9L: Form factor matches.
Resistance	5.62 kΩ	5.6 kΩ	5.9 kΩ	5.6 kΩ / 5.9 kΩ — 0.35% deviation, well within tolerance.; AC0805FR-075K9L: +5% deviation from target nominal value.
Technology	Thick Film	Thin Film	Thick Film	Thin Film / Thick Film — May affect stability and pulse handling.; AC0805FR-075K9L: Technology matches.
Tolerance	1.0%	0.1%	±1%	0.1% / ±1% — Tighter tolerance is an upgrade.; AC0805FR-075K9L: Percentage tolerance matches.
Tcr	±100 PPM/°C	25 ppm/°C	-	25 ppm/°C — Lower TCR provides better stability.
Power	0.125 W	0.125 W	1/8 W	0.125 W / 1/8 W — No safety margin per engineering rules.; AC0805FR-075K9L: No safety margin per engineering rules.

Application & sourcing insights

Questions & answers

AC0805FR-075K9L is a potential functional alternative with the same thick film technology and 1% tolerance, but its 5.9kΩ resistance is 5% higher and requires circuit validation. RT0805BRD075K6L offers tighter tolerance and TCR but uses different (thin film) technology.