Is there a pin-compatible replacement for LBR2012T100K?

Several parts like CMP201209XD100KT and LQM21DH100M70L share the same 0805 package, making them form-fit compatible. True pin-to-pin electrical equivalence is not guaranteed; parameters like DCR and SRF differ and must be reviewed for your application.

What risks should I check before replacing LBR2012T100K?

Key risks include: higher DC Resistance (DCR), which increases power loss; lower Self-Resonant Frequency (SRF), which affects high-frequency performance; and different operating temperature ranges. Always verify these in the candidate's datasheet.

LBR2012T100K Alternatives, Datasheet & Cross Reference | TAIYO YUDEN

Searching for a replacement for the TAIYO YUDEN LBR2012T100K inductor? This guide provides vetted alternatives, highlighting key parametric differences in current, resistance, and package compatibility to ensure a successful substitution.

AI replacement insight

Electrical riskmedium

DCR, SRF, and tolerance vary across candidates and must be checked against application requirements.

Package risklow

All viable candidates use the same 0805 package, ensuring physical compatibility.

Sourcing risklow

Alternatives are available from different manufacturers, improving supply chain resilience.

Can it be replaced directly?

No perfect drop-in replacement has been identified. Candidates like CMP201209XD100KT are form-fit compatible but have minor electrical differences, requiring engineering review.

Best replacement path

The most promising path is CMP201209XD100KT, which offers an upgraded current rating with only a minor increase in DCR. This makes it a likely functional alternate after datasheet verification.

Main risk

The primary risk is increased DC Resistance (DCR) in alternatives, leading to higher power dissipation and potential thermal issues.

Recommended alternatives

A 10µH inductor in the same 0805 package with higher current rating but slightly higher DCR. Review required.

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Alternative comparison matrix

Feature / factor	LBR2012T100K	CMP201209XD100KT	LQM21DH100M70L	Compatibility / risk
Package	0805 (2012 Metric)	0805	0805 (2012 Metric)	0805 / 0805 (2012 Metric) — Form-factor match.; LQM21DH100M70L: Form-factor match.
Inductance	10µH ±10%	10µH ±10%	10µH ±20%	10µH ±10% / 10µH ±20% — Inductance and tolerance match.; LQM21DH100M70L: Inductance matches, but tolerance is wider.
Current	150mA	250mA	250mA	250mA — Higher current rating is an upgrade.; LQM21DH100M70L: Higher current rating is an upgrade.
Dcr	0.468Ω	0.56Ω	0.845Ω	0.56Ω / 0.845Ω — Slightly higher DCR, may be acceptable.; LQM21DH100M70L: Significantly higher DCR increases power loss.
Temperature	-40°C to 105°C	unknown	-55°C to 150°C	unknown / -55°C to 150°C — Operating temperature not found, must verify.; LQM21DH100M70L: Wider operating temperature range.

Application & sourcing insights

Questions & answers

CMP201209XD100KT is a strong candidate, offering a higher current rating in the same 0805 package with very similar DCR. However, its operating temperature and SRF should be verified from its datasheet.