
JST Sales America Inc.
A 2-pin, 2.5mm pitch housing with matching electrical ratings but from a different, incompatible JST connector series.
JST's XAP-02V-1 is a 2-pin, 2.5mm pitch housing from the XA series. Finding a direct replacement requires matching the series for mechanical compatibility, as many alternatives with similar electrical ratings exist but will not mate.
Candidates are from different connector series (SM, XHB) and will not mate with the target's XA series counterpart.
Key electrical ratings like voltage, current, and pitch are matched by several alternatives.
While a direct replacement is hard, many functional alternatives exist if a board redesign is possible.
No direct drop-in replacement has been identified. All reviewed candidates are from different, mechanically incompatible connector series.
Source another part from the JST XA series with 2 positions, or evaluate a full connector system replacement if the XA series is unavailable.
Mechanical Mismatch: The primary risk is that alternative housings will not mate with the existing XA series connector half.

JST Sales America Inc.
A 2-pin, 2.5mm pitch housing with matching electrical ratings but from a different, incompatible JST connector series.
| Feature / factor | XAP-02V-1 | SMR-02V-N | HC-XHB-2Y | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | JST XA Series | JST SM Series | HCTL XHB Series | JST SM Series / HCTL XHB Series — Mechanically incompatible with target's XA series. Will not mate.; HC-XHB-2Y: Mechanically incompatible. XHB is a JST XH clone, not XA. | |
| Pitch | 2.5mm | 2.5mm | 2.5mm | 2.5mm — matched; HC-XHB-2Y: matched | |
| Current | 3A | 3A | - | 3A — matched | |
| Voltage | 250V | 250V | 3A / 250V | 250V / 3A / 250V — matched; HC-XHB-2Y: matched | |
| Temperature | -25°C to +85°C | -25°C to +85°C | -40°C to +105°C | -25°C to +85°C / -40°C to +105°C — matched; HC-XHB-2Y: Wider operating range. |
There are no confirmed drop-in replacements. Alternatives like JST's SMR-02V-N have similar electrical ratings but belong to the different SM connector series and are not mechanically compatible with the XA series.