Andrew
Andrew Content Marketer
On Jun 9, 2025

B3B-XH-A (LF)(SN) FFC & FPC Connectors by JST – Reliable 2.5mm Pitch Solution for Wire-to-Board Connectivity

The FFC & FPC Connectors B3B-XH-A (LF)(SN)  by JST are part of the XH series, designed to provide high-reliability wire-to-board connections in compact and high-density applications. With a 2.5mm pitch and through-hole mounting, these connectors support low-profile devices that require strong mechanical stability and efficient electrical transmission.

In this blog, we’ll explore its technical specs, features, applications, wiring layout, and how to buy or download the datasheet from Xon Electronics. If you need durable and compact connectors for your FFC/FPC applications, these FFC & FPC Connectors by JST are an excellent choice.


Technical Specifications of B3B-XH-A (LF)(SN)

  • Manufacturer: JST

  • Part Number: B3B-XH-A (LF)(SN)

  • Series: XH Series

  • Type: Wire-to-Board Connector (FFC/FPC Compatible)

  • Mounting Type: Through Hole

  • Pitch: 2.5mm

  • Number of Positions: 3

  • Contact Type: Male Pin

  • Termination Style: Solder

  • Current Rating: 3A AC/DC

  • Voltage Rating: 250V

  • Operating Temperature: -25°C to +85°C

  • Category: Connectors, FFC & FPC Connectors by JST

This JST connector is RoHS compliant and lead-free, making it a reliable choice for global electronics applications.


Key Features of B3B-XH-A (LF)(SN) Connector

  • 2.5mm Pitch – Ensures compact layout while allowing current up to 3A

  • Secure Mechanical Fit – Through-hole design provides stable mounting

  • Versatile Compatibility – Supports FFC, FPC, and discrete wires

  • 250V Rating – Ideal for mid-range voltage electronic systems

  • Environmentally Friendly – Lead-free (RoHS-compliant)

These features make the B3B-XH-A (LF)(SN) FFC & FPC Connectors by JST a preferred solution for manufacturers requiring compact and durable connectors.


Applications of B3B-XH-A (LF)(SN)

The B3B-XH-A (LF)(SN) FFC & FPC Connectors by JST are widely used in:

  • Consumer Electronics (TVs, Set-Top Boxes)

  • Office Equipment (Printers, Copiers)

  • Industrial Controllers

  • LED Lighting Systems

  • Battery Packs and Charging Circuits

  • Home Appliance PCBs

These connectors are ideal for reliable, high-cycle wire-to-board interfaces in space-constrained environments.


Wiring and Connection Overview

[Cable/Pin Insertion] – Insert FFC/FPC or wire cable into mating connector housing

[Board Mounting] – Solder through-hole pins to the PCB for robust mechanical and electrical contact

Thanks to JST’s precise pin spacing and locking design, connection integrity is maintained even under vibration or repeated use.


Use Case Scenario: LED Driver Circuit

Scenario: An LED lighting manufacturer needed a cost-effective, compact connector to link control boards to LED modules.

Problem: Standard connectors lacked secure cable retention and were not heat-resistant.

Solution: The B3B-XH-A (LF)(SN) FFC & FPC Connectors by JST offered 2.5mm pitch spacing, high current handling, and robust through-hole stability.

Result: Improved assembly speed, reduced defects, and enhanced durability in production systems.


Download Datasheet for B3B-XH-A (LF)(SN)

Need detailed mechanical specs or PCB layout recommendations?

Download B3B-XH-A (LF)(SN) Datasheet from Xon Electronics


Why Buy from Xon Electronics?

Xon Electronics offers genuine B3B-XH-A (LF)(SN) FFC & FPC Connectors by JST with:

  • 100% Original JST Stock
  • Global Shipping – USA, India, Australia, Europe & more
  • Bulk Pricing for OEMs
  • Technical Application Support
  • Secure Ordering & Easy Checkout

Order now at www.xonelec.com to streamline your next design.


Conclusion

The B3B-XH-A (LF)(SN) FFC & FPC Connectors by JST are engineered for high-reliability wire-to-board connections in compact systems. With 2.5mm pitch, through-hole stability, and global compliance, these JST connectors provide a smart solution for a wide range of electronic designs. Available now at Xon Electronics with international shipping.


FAQs – B3B-XH-A (LF)(SN) Connector

Q1. What is the pitch size of this connector?
2.5mm.

Q2. Is it suitable for FFC and FPC applications?
Yes, it is designed for both FFC/FPC and wire-to-board configurations.

Q3. How many circuits does it support?
It supports 3 circuits.

Q4. What current and voltage ratings does it offer?
3A current and 250V voltage.

Q5. Where can I buy it with international shipping?
At www.xonelec.com, with delivery to USA, India, Australia, Europe, and other countries.




Looking for help? Visit our FAQ's Section to answer to all your questions

 

X-ON Worldwide Electronics

Welcome To X-ON Electronics
For over three decades, we have been advocating and shaping the electronic components industry. Our management complements our worldwide business scope and focus. We are committed to innovation, backed by a strong business foundation. If you need a trustworthy supplier of electronic components for your business – look no further.
 

Copyright ©2025  X-ON Electronics Services. All rights reserved.
Please ensure you have read and understood our Terms & Conditions before purchasing. All prices exclude GST.

Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted Image for all the cards that are accepted AS9120 Certified