Needs validationmedium risk
The official straight-mount version of the target's connector series, offering identical electrical performance.
Best Alternatives to S2B-XH-A(LF)(SN)
S2B-XH-A(LF)(SN) is a popular 2-pin, 2.5mm pitch right-angle shrouded header from JST's XH series. It is widely used for reliable wire-to-board connections in various electronic devices.
AI replacement insight
Package riskhigh
Orientation mismatch (straight vs. right-angle) prevents drop-in replacement and requires layout review.
Electrical risklow
Candidates have matching voltage, current, and pitch, posing minimal electrical risk.
Sourcing risklow
The JST XH series and its clones are widely available from multiple manufacturers.
Can it be replaced directly?
No direct, drop-in replacements for S2B-XH-A(LF)(SN) were identified, as all candidates have a straight orientation instead of right-angle.
Best replacement path
If a straight (vertical) connector is acceptable, B2B-XH-A(LF)(SN) from JST is the best functional alternative as it's from the same series. No direct right-angle replacements were found in this batch.
Main risk
The primary risk is mechanical. A straight header occupies vertical space above the PCB, unlike the horizontal profile of the original right-angle part, which can cause interference with the enclosure or other components.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | S2B-XH-A(LF)(SN) | B2B-XH-A(LF)(SN) | XH-2AK米色 | HC-XH-2A-G | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | JST | JST | - | - | JST — Same manufacturer and series. |
| Package | Right-Angle / Side-Entry | Straight / Top-Entry | Straight / Top-Entry | Straight / Top-Entry | Straight / Top-Entry — Target is right-angle; candidate is the straight version from the same series.; XH-2AK米色: Target is right-angle; candidate is straight. Footprint matches, orientation does not.; HC-XH-2A-G: Target is right-angle; candidate is straight. Footprint is likely compatible but requires verification.; ZX-XH2.54-2PZZ-R: Target is right-angle; candidate is straight. Footprint is likely compatible but requires verification. |
| Pitch Mm | 2.5mm | 2.5mm | 2.5mm | 2.5mm | 2.5mm — Pitch matches.; XH-2AK米色: Pitch matches.; HC-XH-2A-G: Pitch matches.; ZX-XH2.54-2PZZ-R: Pitch matches. |
| Current | 3A | 3A | - | - | 3A / 3.0A — Current rating matches.; ZX-XH2.54-2PZZ-R: Current rating matches. |
| Gender | Header, Male Pins | - | Header, Male Pins | - | Header, Male Pins — Both are male pin headers. |
| Positions | 2 | - | 2 | 2 | 2 — Position count matches.; HC-XH-2A-G: Position count matches.; ZX-XH2.54-2PZZ-R: Position count matches. |
Application & sourcing insights
Questions & answers
The best functional alternative is B2B-XH-A(LF)(SN), also from JST. It shares the same electrical specifications and footprint but has a straight (vertical) orientation instead of right-angle. This is only suitable if your design can accommodate a vertical connector.