Is there a pin-compatible replacement for KLZ1608MHR4R7WTD25?

Yes, TDK's MLZ1608M4R7WT000 is a pin-compatible replacement in the same 0603 package. However, it is not AEC-Q200 qualified and has a lower max temperature of 125°C, making it suitable only for non-automotive applications.

What risks should I check before replacing KLZ1608MHR4R7WTD25?

The main risks are application mismatch and parametric downgrades. Ensure any replacement meets the AEC-Q200 requirement if used in automotive circuits. Also, verify the saturation current (Isat) and temperature range are sufficient for your design.

KLZ1608MHR4R7WTD25 Alternatives, Datasheet & Cross Reference | TDK Electronics AG

Finding a replacement for the TDK KLZ1608MHR4R7WTD25, a 4.7µH AEC-Q200 inductor, requires careful attention to its automotive qualification. While pin-compatible options exist for general use, functional alternates may be needed for board redesigns.

AI replacement insight

Application riskhigh

Substituting a non-AEC-Q200 part into an automotive design is a high risk.

Package riskmedium

Functional alternates have different packages, requiring board redesign.

Electrical risklow

Several candidates match or exceed key electrical parameters like inductance and current.

Can it be replaced directly?

No direct, fully-qualified (AEC-Q200, 150°C) replacement was found. MLZ1608M4R7WT000 is a pin-compatible option for general-purpose applications.

Best replacement path

For non-automotive applications, MLZ1608M4R7WT000 is a strong form-fit match. For automotive use, a direct replacement is not found; a new AEC-Q200 part search is needed.

Main risk

The primary risk is using a non-automotive grade component in an automotive application, which can lead to reliability issues due to temperature and quality differences.

Recommended alternatives

A strong match with identical package and key electricals, but lacks automotive qualification and has a lower temperature rating.

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Alternative comparison matrix

Feature / factor	KLZ1608MHR4R7WTD25	MLZ1608M4R7WT000	WPN4012H4R7MT	XRIM252012S4R7MBCA	Compatibility / risk
Package	1608 (0603)	1608 (0603 Metric)	4012	2520	1608 (0603 Metric) / 4012 / 2520 — Package size is identical, ensuring form and fit compatibility.; WPN4012H4R7MT: Different package requires PCB redesign.; XRIM252012S4R7MBCA: Different package requires PCB redesign.
Inductance	4.7µH	4.7µH	-	-	4.7µH — Inductance value is identical.
Saturation Current	120mA	120mA	2.3A	2.4A	120mA / 2.3A / 2.4A — Saturation current matches the target's requirement.; WPN4012H4R7MT: Significantly higher current handling.; XRIM252012S4R7MBCA: Significantly higher current handling.
Temperature	-55°C to +150°C	-55°C to +125°C	-	-	-55°C to +125°C — Candidate has a lower maximum operating temperature.
Application	AEC-Q200	No	-	-	No — Candidate is not AEC-Q200 qualified, unlike the target.
Dcr	0.5Ω	-	0.23Ω	0.15Ω	0.23Ω / 0.15Ω — Significantly lower DCR improves efficiency.; XRIM252012S4R7MBCA: Significantly lower DCR improves efficiency.

Application & sourcing insights

Questions & answers

For non-automotive designs, MLZ1608M4R7WT000 is the best alternative as it matches the package and key electrical specs. For automotive use, no direct replacement was found; a new search for an AEC-Q200 part is required.