AC0402FR-073K3L
Yageo
Needs validationlow risk
AEC-Q200 qualified automotive-grade resistor with identical electrical and physical specifications.
Best Alternatives to WR04X3301FTL
Find and compare suitable replacements for the Walsin WR04X3301FTL, a 3.3kΩ 1% 1/16W 0402 thick film chip resistor. This guide covers pin-compatible upgrades and parametric alternatives.
AI replacement insight
Package risklow
All suggested alternatives are in the same 0402 package.
Electrical riskmedium
Risk is low for direct matches, but medium for alternatives with different resistance or technology.
Can it be replaced directly?
Yes, Yageo AC0402FR-073K3L is a direct, pin-compatible replacement for WR04X3301FTL, and offers an upgrade to automotive grade.
Best replacement path
The most straightforward replacement is Yageo's AC0402FR-073K3L, an AEC-Q200 qualified part with identical parameters.
Main risk
The main risk involves using parametric alternatives with different resistance values or technology (thin film), which requires circuit validation.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | WR04X3301FTL | AC0402FR-073K3L | RT0402BRD073K3L | RT0402BRE073K3L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 (1005 metric) | 0402 | 0402 | 0402 | 0402 — Identical package and pin count.; RT0402BRD073K3L: Identical package.; RT0402BRE073K3L: Identical package.; RC0402FR-073K24L: Identical package. |
| Resistance | 3.3 kΩ | 3.3 kΩ | - | - | 3.3 kΩ / 3.24 kΩ — Resistance matches.; RC0402FR-073K24L: -1.8% deviation from target. |
| Tolerance | ±1% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% — Tolerance matches.; RT0402BRD073K3L: Tighter tolerance.; RT0402BRE073K3L: Tighter tolerance. |
| Power | 1/16 W | 1/16 W | - | - | 1/16 W — Power rating matches. |
| Application | General Purpose | AEC-Q200 | - | - | AEC-Q200 — Candidate is automotive grade. |
| Technology | Thick Film | - | Thin Film | Thin Film | Thin Film / Thick Film — Technology differs, affects noise/pulse performance.; RT0402BRE073K3L: Technology differs, affects noise/pulse performance.; RC0402FR-073K24L: Technology matches. |
| Tcr | ±100 ppm/°C | - | 25 ppm/°C | 50 ppm/°C | 25 ppm/°C / 50 ppm/°C — Superior temperature stability.; RT0402BRE073K3L: Improved temperature stability. |
Application & sourcing insights
Questions & answers
The Yageo AC0402FR-073K3L is an excellent alternative, offering identical core specifications plus AEC-Q200 automotive qualification, making it a direct upgrade.