Is there a pin-compatible replacement for YI321611U800-4R0T?

Yes, several alternatives like YI321611U101-4R0T share the same 1206 package and 2-pin layout, making them physically compatible. However, electrical parameters like impedance differ and must be verified for your application.

What risks should I check before replacing YI321611U800-4R0T?

The main risk is impedance mismatch. Using a bead with different impedance (e.g., 100Ω or 30Ω instead of 80Ω) will change the EMI filtering characteristics. Also, ensure any substitute meets or exceeds the 4A current rating to avoid overheating.

YI321611U800-4R0T Alternatives, Datasheet & Cross Reference | YJYCOIN

Find substitutes for the YJYCOIN YI321611U800-4R0T, a 1206 ferrite bead rated for 80Ω at 100MHz and 4A. This page analyzes alternatives based on key electrical and physical parameters.

AI replacement insight

Electrical riskmedium

Impedance mismatch will change filter characteristics.

Package risklow

Candidates with 1206 packages are physically compatible.

Can it be replaced directly?

No direct drop-in replacement with identical specs was found. YI321611U101-4R0T is the closest functional alternative but has a different impedance (100Ω vs 80Ω).

Best replacement path

Use YI321611U101-4R0T for a close match with slightly higher impedance. Other options require significant parametric trade-offs.

Main risk

Altering the EMI filtering performance due to impedance differences between the target and substitute parts.

Recommended alternatives

Functional alternative in the same 1206 package with matching 4A current rating and DCR, but with 100Ω impedance.

View details

Alternative comparison matrix

Feature / factor	YI321611U800-4R0T	YI321611U101-4R0T	CBM321609U300T	Compatibility / risk
Impedance	80Ω @ 100MHz	100Ω @ 100MHz	30Ω @ 100MHz	100Ω @ 100MHz / 30Ω @ 100MHz — Higher impedance provides more filtering, but may affect signal integrity.; CBM321609U300T: Significantly lower impedance provides less EMI suppression.
Current	4A	4A	4A	4A — Rated current matches the target.; CBM321609U300T: Rated current matches the target.
Resistance	0.03Ω	0.03Ω	0.03Ω	0.03Ω — DC Resistance (DCR) matches.; CBM321609U300T: DC Resistance (DCR) matches.
Package	1206	1206	1206	1206 — Package size is identical.; CBM321609U300T: Package size is identical.
Temperature	-40°C to +125°C	-40°C to +125°C	-	-40°C to +125°C — Operating temperature range matches.

Application & sourcing insights

Questions & answers

YI321611U101-4R0T is a strong candidate from the same manufacturer with a slightly higher impedance of 100Ω. It matches the 4A current rating and 1206 package, making it a good starting point for evaluation.