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On Jun 9, 2025

B3B-XH-A JST Connector – 2.5mm Pitch, 3-Circuit Design

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.