Is there a pin-compatible replacement for YSPI0420-6R8M?

Yes, other inductors in the YJYCOIN YSPI0420 series, like YSPI0420-4R7M, are pin-compatible. However, their electrical parameters like inductance and current ratings differ, requiring engineering review.

What risks should I check before replacing YSPI0420-6R8M?

Key risks are changes in inductance, which affects converter stability and ripple, and differences in current ratings (Irms/Isat) and DC Resistance (DCR), which impact thermal performance and efficiency.

YSPI0420-6R8M Alternatives, Datasheet & Cross Reference | YJYCOIN

YJYCOIN YSPI0420-6R8M is a 6.8µH molded power inductor in a 4.4x4.2mm package, designed for DC-DC converters. Alternatives typically involve other parts from the same YSPI0420 series, requiring careful review of inductance and current ratings.

AI replacement insight

Electrical riskhigh

Changing inductance affects the power converter's control loop, ripple current, and transient response.

Package risklow

Alternatives from the same YSPI0420 series share the same package and land pattern.

Sourcing risklow

The YSPI0420 series offers multiple inductance values, providing sourcing flexibility.

Can it be replaced directly?

No direct drop-in replacement with identical specifications has been identified. All viable alternatives require a parametric trade-off, primarily in the inductance value.

Best replacement path

The best path is selecting another part from the YJYCOIN YSPI0420 series, such as YSPI0420-4R7M, and validating the impact of its different inductance value on the power supply circuit.

Main risk

The main risk is circuit instability or performance degradation due to a change in inductance value from the original 6.8µH.

Recommended alternatives

A form-fit alternative from the same series with lower inductance (4.7µH) and improved current handling.

View details

Alternative comparison matrix

Feature / factor	YSPI0420-6R8M	YSPI0420-4R7M	YSPI0420-100M	Compatibility / risk
Inductance	6.8µH	4.7µH	10µH	4.7µH / 10µH — Lower inductance requires circuit validation.; YSPI0420-100M: Higher inductance requires circuit validation.
Package	4.4mm x 4.2mm	4.4mm x 4.2mm	4.4mm x 4.2mm	4.4mm x 4.2mm — Same series and package ensures form-fit compatibility.; YSPI0420-100M: Same series and package ensures form-fit compatibility.
Current	2.0A Irms, 2.5A Isat	2.2A Irms, 3.0A Isat	1.6A Irms	2.2A Irms, 3.0A Isat / 1.6A Irms — Higher current ratings provide more thermal headroom.; YSPI0420-100M: Lower current rating is a downgrade and reliability risk.
Resistance	130mΩ typ	118mΩ typ	225mΩ	118mΩ typ / 225mΩ — Lower DCR improves efficiency.; YSPI0420-100M: Higher DCR reduces efficiency and increases heat.

Application & sourcing insights

Questions & answers

YSPI0420-4R7M is a strong candidate. It shares the same package and has better current ratings, but its lower inductance (4.7µH) must be verified for your application's stability and performance.