Is there a pin-compatible replacement for YNR4020-4R7M?

Yes, other inductors in a 4020 package, like the YHNR4020-4R7M, are pin-compatible. However, you must always verify key electrical parameters like inductance, DCR, and current ratings before substitution.

What risks should I check before replacing YNR4020-4R7M?

When replacing this inductor, verify the inductance value is identical (4.7µH), the DC Resistance (DCR) is not significantly higher to avoid efficiency loss, and that the saturation and heat rating currents are sufficient for your circuit's peak and RMS currents.

YNR4020-4R7M Alternatives, Datasheet & Cross Reference | YJYCOIN

Finding a replacement for the YJYCOIN YNR4020-4R7M 4.7µH power inductor involves matching the 4020 package, inductance, and current ratings. Several alternatives exist with varying performance trade-offs.

AI replacement insight

Package risklow

Multiple candidates share the same 4020 package.

Electrical risklow

Close matches exist, but DCR and current ratings must be verified.

Sourcing riskmedium

Availability of niche manufacturers should be confirmed.

Can it be replaced directly?

No confirmed drop-in replacement exists without review. However, YHNR4020-4R7M is a very close functional match with upgraded current specs.

Best replacement path

The YJYCOIN YHNR4020-4R7M is a strong candidate, offering higher current ratings in the same package and inductance value.

Main risk

The primary risk is ensuring the replacement's DC resistance (DCR) and current ratings meet or exceed the original's requirements for your specific application.

Recommended alternatives

A functional alternative in the same 4020 package with different inductance (3.3µH) that requires engineering review.

View details

Alternative comparison matrix

Feature / factor	YNR4020-4R7M	YHNR4020-4R7M	YNR4020-3R3M	Compatibility / risk
Package	4020 (4.0mm x 4.0mm)	4020 (4.0mm x 4.0mm)	4020 (4.0mm x 4.0mm)	4020 (4.0mm x 4.0mm) — Same package and footprint.; YNR4020-3R3M: Same package and footprint.
Inductance	4.7 µH	4.7 µH	3.3 µH	4.7 µH / 3.3 µH — Inductance value matches.; YNR4020-3R3M: Lower inductance will alter circuit behavior (e.g., ripple current).
Current	2.35 A	4.0 A	3.2 A	4.0 A / 3.2 A — Higher saturation current prevents inductance drop at high peaks.; YNR4020-3R3M: Higher saturation current.
Resistance	0.098 Ω	0.115 Ω	0.091 Ω	0.115 Ω / 0.091 Ω — Slightly higher max DCR may cause minor efficiency loss.; YNR4020-3R3M: Lower max DCR is a slight improvement.

Application & sourcing insights

Questions & answers

The YJYCOIN YHNR4020-4R7M is an excellent alternative, providing the same 4.7µH inductance and 4020 package but with significantly higher current handling capabilities. A minor trade-off is its slightly higher DC resistance.