
CJT
Parametrically similar 2.5mm pitch housing, but from a different series requiring mechanical verification.
The JST EHR-2 is a 2-position, 2.5mm pitch housing from the reliable EH series, widely used for wire-to-board connections. When seeking alternatives, focus on matching the connector series and mechanical dimensions.
Mating compatibility with non-EH series parts is not guaranteed and is the primary risk.
Key electrical parameters like pitch, current, and voltage are standard and easy to match.
No verified direct drop-in replacement was found. All candidates are from different connector series and require mechanical validation.
First, seek other parts within the JST EH series. If unavailable, consider parametrically similar cross-vendor options like CJT's A2508 series, but you must verify mechanical drawings.
Mechanical incompatibility. Connectors from different series, even with the same pitch and pin count, are not designed to mate.

CJT
Parametrically similar 2.5mm pitch housing, but from a different series requiring mechanical verification.
| Feature / factor | EHR-2 | A2508H-2P | HC-XHB-2Y | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Pitch | 2.5mm | 2.5mm | 2.5mm | 2.5mm — Pitch matches.; HC-XHB-2Y: Pitch matches. | |
| Positions | 2 | 2 | 2 | 2 — Position count matches.; HC-XHB-2Y: Position count matches. | |
| Package | Housing | Housing | - | Housing — Package type matches. | |
| Temperature | -25°C to +85°C | -40°C to +105°C | -40°C to +105°C | -40°C to +105°C — Wider operating range.; HC-XHB-2Y: Wider operating range. | |
| Series | EH | A2508 | XHB | A2508 / XHB — Different connector series, mating not guaranteed.; HC-XHB-2Y: Different series, mating unverified. |
The best alternative is another part from the JST EH series with the same position count. Cross-vendor parts like CJT A2508H-2P are parametrically similar but require careful mechanical verification to ensure they mate correctly.