XH2.54mm Connectors, Cables & PCB Headers
XH2.54mm Connectors for Wire-to-Board and Cable Harnesses
XH2.54mm is a common catalog name for single-row, approximately 2.5mm-pitch connector products used in wire-to-board wiring. This Yoeruyo collection includes housings, crimp contacts, pre-crimped leads, finished cable assemblies, extension and adapter cables, PCB headers, ribbon cables and connector kits.
The 109 products also include related XHB locking, XHD dual-row, TJC3-style and mixed-family products. These names do not describe one universally interchangeable system. Product-level dimensions, latch geometry, terminals, wire, pinout and PCB footprint must be verified before purchase. Listings using “JST” or “XH” as search terminology should not automatically be interpreted as official JST-manufactured parts.
Products Available
- Single-row housings and terminals: loose parts for custom harness production.
- Pre-crimped wires and cable assemblies: selected 22AWG, 24AWG and 26AWG products in multiple lengths and conductor arrangements.
- PCB headers: straight and right-angle through-hole parts plus selected horizontal and vertical SMD formats.
- Extension and docking cables: male-to-female, female-to-female and detachable wire-to-wire configurations.
- Adapters: selected XH-to-PH, Dupont, SM, USB-C board, audio and other transitions.
- Battery balance leads: selected multi-position cables marketed for balance charging; pinout and cell count require exact verification.
- XHB and XHD products: related locking or dual-row connector formats that must be matched by their own drawings.
2.50mm vs. 2.54mm Naming
XH-family products are often marketed online as 2.5mm, 2.50mm or 2.54mm. These labels are not enough to prove a mechanical match. Measure contact spacing, then compare the complete housing, keying, friction lock, terminal and header drawing. A generic 0.1-inch or Dupont connector may also use 2.54mm spacing but does not therefore mate with an XH-style housing.
How to Select the Correct Connector
- Identify the family: distinguish standard single-row XH-style parts from XHB, XHD, TJC3, KF2510, Dupont and other similarly pitched products.
- Confirm positions and rows: match the circuit count and verify single-row versus dual-row construction.
- Check the mating interface: compare latch, polarization, housing width, contact form and insertion direction.
- Choose the PCB orientation: select straight/vertical or right-angle/horizontal entry and verify through-hole or SMD mounting.
- Check wire details: confirm gauge, insulation, length, conductor color order and termination at both ends.
- Validate the pinout: same-side, reverse-side and extension cables can map conductors differently.
- Review package contents: determine whether the listing contains housings, contacts, headers, cables or a complete mating set.
- Use product-level ratings: current, voltage, temperature, material, plating and certification vary across the collection.
XH vs. XHB and XHD
Standard XH-style products in this collection are generally single-row wire-to-board components. XHB listings use a different buckle or locking interface, while XHD listings include dual-row arrangements. Matching nominal pitch does not make their housings, contacts or PCB headers interchangeable. Treat each named family as a separate mechanical system unless exact drawings prove otherwise.
PCB Mounting and Cable Direction
Straight or vertical headers route the cable above the PCB; right-angle or horizontal headers route it near the board plane. Confirm footprint, pin-one location, solder-tail dimensions and enclosure clearance. For double-ended cables, inspect both connectors from the same reference view. A visually neat color sequence can still be electrically reversed.
Battery and Balance-Cable Safety
Some products are intended for LiPo or battery-balance wiring, but connector appearance alone does not establish cell count, polarity or pin order. Verify every conductor against the charger, BMS or battery documentation before connection. Reversed or shifted balance wiring can damage equipment or create a battery hazard.
Typical Applications
Properly selected XH-style connectors can support internal wiring in control boards, LED equipment, sensors, appliances, robotics, instruments, development hardware and battery-management assemblies. Suitability depends on the exact electrical load, environment, retention needs and matched component specifications.
Frequently Asked Questions
Is XH2.54mm the same as 2.50mm XH?
The terms are often used for similar products, but naming alone is not proof of compatibility. Compare exact dimensions and mating features.
Is XH2.54mm interchangeable with Dupont 2.54mm?
No. They can share similar contact spacing while using different housings, contacts, polarization and retention.
Are all products official JST XH components?
No such assumption should be made. Verify the manufacturer on the individual product page.
Do all cables use the same wire gauge or current rating?
No. This collection includes multiple wire gauges and constructions. Use the exact listing specifications.
Can XHB or XHD parts mate with standard XH parts?
Not by default. XHB locking and XHD dual-row formats require their corresponding mating components.
Which header orientation should I choose?
Choose vertical entry for cable routing above the board and right-angle entry for routing parallel to it, subject to footprint and enclosure clearance.
Can I use an XH cable as a battery balance lead?
Only after confirming connector family, positions, cell count, conductor order and polarity against the battery and charger.
Procurement Checklist
Record the family name, measured pitch, row count, positions, housing geometry, contact type, PCB orientation, wire gauge, cable length, pinout and quantity. For mixed-family listings, select the exact XH/XHB/XHD option. Validate samples before production purchasing.
