2-pin JST XH Polarised Connector 2mm Pitch Male & Female Wire Harness

Specifications:

• Connector Family: JST XH Series
  
• Pin Count: 2-Pin
  
• Pitch: 2.0mm
  
• Current Rating: 3A AC/DC max
  
• Voltage Rating: 250V AC/DC max
  
• Contact Resistance: ≤ 20 mΩ
  
• Insulation Resistance: ≥ 1000 MΩ
  
• Wire Gauge: 26 AWG [Estimated]
  
• Wire Length: 150mm [Estimated]
  
• Connector Gender: Female Wire Harness + Male Board Header
  
• Mating Mechanism: Polarized / Keyed Friction Latch
  
• Operating Temperature: -25°C to +85°C
  
• Compatible Platforms: Custom PCBs, Microcontroller Boards, Sensor Modules

Project Evolution

Unlock New Capabilities

• Past Projects (Prerequisites): If you've already experimented with basic breadboard circuits, Arduino jumper wire connections, or simple battery-powered projects, you are familiar with how easily point-to-point wires can slip loose during movement.
• Feature Upgrade (What This Unlocks): This 2-pin JST XH wire harness unlocks compact custom PCB modularity, detachable battery power interconnects, secure external sensor wiring, and vibration-proof wire-to-board connections. It transforms fragile breadboard prototypes into durable, plug-and-play enclosures ready for real-world deployment.

Effort Level & Minimum Hardware:

• Effort Level: Beginner

     Minimum hardware to get started:

• Soldering Iron or PCB Header Socket: Required to solder the male header block onto your custom PCB or breakout board for a solid structural anchor.
• Power Source or Sensor Module: Required to supply DC power (up to 250V/3A) or route signals through the pre-crimped female wire lead.
• Heat Shrink Tubing: Recommended to insulate exposed wire ends after splicing onto external components.

Virtual Technician & Wiring Guide
 Safety Warnings:

• Polarity Warning: Always double-check wire color conventions (Red/Black or Brown/Black) against your PCB layout before powering on. While the housing is keyed to prevent reverse plugging, incorrect wire soldering on custom boards can still short power to ground.
• Current Limit: Do not exceed 3A continuous DC current through the 26 AWG lead wires to prevent conductor heating and voltage drop.

Required Additional Items

• Soldering Iron & Solder: Needed to securely attach the male 2-pin header onto your circuit board or sensor module.
  
• Wire Strippers: Needed if you need to trim or strip the pre-tinned wire leads to length.
• Heat Shrink Tube Assortment Kit: Provides clean, professional insulation over soldered wire splices. 

Package Includes: 

1× 2-pin JST XH Female Housing Connector with pre-crimped 150mm Wire Lead 

1× 2-pin JST XH Male Straight PCB Header Block 

Frequently Asked Questions ( FAQ)

1. Is this 2-pin JST XH connector compatible with standard 2.54mm bread boards? No, this model features a 2.0mm pitch spacing, which is smaller than the standard 2.54mm (0.1 inch) breadboard pin grid.
2. Can I plug this 2mm JST cable directly into standard female jumper wire headers?
   No, the 2.0mm spacing does not align with standard 2.54mm header sockets.
3. Does this connector work with LiPo battery connections?
   Many small LiPo batteries use JST PH (2.0mm) or JST XH connectors, but you must verify that the housing keying and wire polarity match your battery.
4. Can I use this JST XH connector on standard custom PCBs?
   Yes, the included male header can be soldered directly into standard 2mm pitch PCB drill holes.
5. What is the maximum voltage rating for this connector?
   This JST XH connector is rated for up to 250V AC/DC maximum.
6. How much current can this 2-pin JST wire harness handle?
   The connector contacts and 26 AWG wire leads are rated for up to 3A continuous DC current.
7. Will this wire harness overheat if I draw 5A through it?
   Yes, drawing 5A exceeds the continuous 3A current rating and can cause excessive heating or wire insulation melting.
8. How is the polarity controlled on this 2-pin connector?
   The housing features side alignment slots and a top latching guide that physical prevent reverse insertion into the male header.
9. What are the colors of the pre-crimped wire leads?
   The wire harness comes pre-crimped with distinct color-coded wires (typically Red/Black or Brown/Black) for positive and ground identification.
10. Can I remove the crimped wire pins from the plastic female housing?
    Yes, pressing down gently on the tiny metal locking tab on the contact pin allows you to slide the pin out of the housing.
11. Do I need any software libraries to use this wire connector?
    No, this is a purely mechanical and electrical hardware connection component and requires no software or libraries.
12. How do I monitor voltage passing through this connector in Arduino code?
    You route the positive line to an analog input pin (via a voltage divider if above 5V) and read the analog voltage signal.
13. Can I use this connector to transmit digital signals like I2C or UART?
    Yes, this 2-pin connector can carry single-line signals plus ground or two signal channels efficiently.
14. Why is my female JST socket loose on the male PCB header?
    Check if the locking latch on top of the female housing is properly engaged with the ridge on the male header.
15. Why am I experiencing intermittent power connection on my circuit board? Inspect the solder joints on the male PCB header to ensure there are no cold joints or broken copper traces.
16. What should I do if my wires pull out of the female JST housing?
    Ensure the metal terminal latch tab is bent outward slightly before reinserting the pin until it clicks firmly into place.
17. My circuit is not powering on even though the JST connector is plugged in — what is wrong?
    Check continuity across the wire leads using a multimeter to confirm the internal wire crimps are making clean contact.
18. Does Probots offer bulk quantities of JST XH connectors for production runs?
    Yes, Probots supplies bulk institutional quantity options for commercial production and academic laboratories.
19. Are both male PCB header and female wire harness included in this purchase? Yes, each unit includes one pre-wired female JST cable assembly and one male straight PCB header.
20. Does Probots verify pin retention and wire crimp quality before dispatch?
    Yes, every batch is inspected under Probots™ QC-Pass  guidelines to guarantee reliable connections out of the box.