Is there a pin-compatible replacement for GHR-03V-S?

While several 3-pin, 1.25mm pitch housings exist, true pin-to-pin compatibility depends on the mechanical housing design, including the locking mechanism. No candidates have been confirmed as mechanically identical.

What risks should I check before replacing GHR-03V-S?

Key risks include: 1) Mechanical Mismatch: The new housing may not mate with the existing header. 2) Thermal Downgrade: Many alternatives have a lower max operating temperature (e.g., 85°C vs 105°C). 3) Material Differences: Different plastics can affect durability.

GHR-03V-S Alternatives, Datasheet & Cross Reference | JST

The GHR-03V-S is a 3-position, 1.25mm pitch wire-to-board receptacle housing from JST's GH series, known for its secure locking feature and high-temperature PBT material. Finding a direct replacement requires careful mechanical and parametric validation.

AI replacement insight

Package riskhigh

Different connector series may not mate correctly, even with the same pitch.

Electrical riskmedium

Most alternatives have a lower maximum operating temperature, posing a risk in high-temp applications.

Can it be replaced directly?

No direct, verified drop-in replacement has been identified. Alternatives exist but have lower temperature ratings and require mechanical fit verification.

Best replacement path

Source other JST GH series parts or compatible series from other vendors after verifying mechanical drawings and temperature ratings.

Main risk

Mechanical incompatibility and reduced thermal performance are the main risks when substituting this part.

Recommended alternatives

A 3-pin, 1.25mm pitch housing, but with a lower temperature rating and different material that requires engineering review.

View details

Alternative comparison matrix

Feature / factor	GHR-03V-S	HC-1.25-3Y	ZX-MX1.25-3PJK	Compatibility / risk
Pin Count	3	3	3	3 — Pin count matches.; ZX-MX1.25-3PJK: Pin count matches.
Pitch	1.25mm	1.25mm	1.25mm	1.25mm — Pitch matches.; ZX-MX1.25-3PJK: Pitch matches.
Type	Receptacle Housing	Receptacle Housing	Receptacle Housing	Receptacle Housing — Connector type is a receptacle housing.; ZX-MX1.25-3PJK: Connector type is a receptacle housing.
Temperature	-40°C to +105°C	-25°C to +85°C	-25°C to +85°C	-25°C to +85°C — Candidate has a narrower operating temperature range.; ZX-MX1.25-3PJK: Candidate has a narrower operating temperature range.
Material	PBT	Nylon 66	PA66	Nylon 66 / PA66 — Material differs, may affect durability and high-temp performance.; ZX-MX1.25-3PJK: Material differs, may affect durability and high-temp performance.

Application & sourcing insights

Questions & answers

Currently, no verified drop-in alternative exists. Candidates like Megastar ZX-MX1.25-3PJK are functionally similar but have a lower temperature rating and require mechanical verification before use.