Is there a pin-compatible replacement for DF37NC-24DS-0.4V(51)?

No, a pin-compatible and mate-compatible replacement is not available among the reviewed parts. For board-to-board connectors, matching the series (e.g., DF37), mated height, and footprint is essential for a drop-in replacement.

What risks should I check before replacing DF37NC-24DS-0.4V(51)?

The main risk is mechanical incompatibility. You must verify the footprint, mated height, and locking features. Since no direct replacement was found, you will need to replace both mating connectors and revise the PCB layout.

DF37NC-24DS-0.4V(51) Alternatives, Datasheet & Cross Reference | HRS

DF37NC-24DS-0.4V(51) is a 24-pin, 0.4mm pitch board-to-board connector from Hirose. Finding a direct, mate-compatible replacement is challenging, as alternatives often have different mechanical dimensions requiring a design update.

AI replacement insight

Package riskhigh

Alternatives are not mate-compatible. Footprint and mated height differ, requiring a full redesign.

Electrical risklow

Candidates have matching or superior voltage and current ratings.

Sourcing risklow

Alternatives are from active series, but availability for the full mating pair should be confirmed.

Can it be replaced directly?

No, there are no direct, mate-compatible replacements for DF37NC-24DS-0.4V(51) among the candidates reviewed. All alternatives belong to different connector series and are not mechanically compatible.

Best replacement path

No direct drop-in replacement was found. The best path is to select a new, readily available connector pair (plug and receptacle) that meets the electrical and new mechanical requirements, which will require a PCB layout revision.

Main risk

The primary risk is mechanical incompatibility. Using any of the identified alternatives will require a PCB redesign and replacing the mating connector on the corresponding board.

Recommended alternatives

Alternative from the same manufacturer but a different, non-intermateable series (DF40). Not a drop-in replacement.

View details

Alternative comparison matrix

Feature / factor	DF37NC-24DS-0.4V(51)	DF40C-24DS-0.4V(51)	BM20B(0.8)-24DS-0.4V(51)	YXT-BB10-24P-02	Compatibility / risk
Manufacturer	HRS	HRS	-	-	HRS — Same manufacturer.
Family	DF37	DF40	BM20	-	DF40 / BM20 — Different connector series are not inter-mateable.; BM20B(0.8)-24DS-0.4V(51): Different connector series are not inter-mateable.
Current	0.3 A	0.3 A	0.3 A	0.5 A	0.3 A / 0.5 A — Current rating matches.; BM20B(0.8)-24DS-0.4V(51): Current rating matches.; YXT-BB10-24P-02: Higher current rating is acceptable.
Voltage	30 V	30 V	30 V	60 V	30 V / 60 V — Voltage rating matches.; BM20B(0.8)-24DS-0.4V(51): Voltage rating matches.; YXT-BB10-24P-02: Higher voltage rating is acceptable.
Mated Height	0.98 mm	-	0.8 mm	0.8 mm	0.8 mm — Mated height is different, not inter-mateable.; YXT-BB10-24P-02: Mated height is different, not inter-mateable.
Package	SMD	-	-	SMD	SMD — Package type matches.
Temperature	-35°C to +85°C	-	-	-55°C to +85°C	-55°C to +85°C — Wider operating temperature range.

Application & sourcing insights

Questions & answers

No direct drop-in replacement was identified. The best alternatives, such as parts from the Hirose DF40 or YXT BB10 series, are functionally similar but require a PCB redesign due to mechanical differences.