JST S03B-XASK-1(LF)(SN) 3-Pin Right Angle Header | 2.5mm XA Series

Short Description:

Manufacturer: JST (Japan Solderless Terminals)
Part Number: S03B-XASK-1(LF)(SN)
Series: XA Series (Secure Locking Type)
Number of Positions: 3 Position
Pitch: 2.50 mm (0.098″)
Orientation: Right Angle / Side Entry
Mounting Type: Through Hole (With Board Lock)
Locking Type: Secure Locking Ramp
Rated Current/Voltage: 3A / 250V AC/DC
Material: Glass-filled PA66 (UL94 V-0)

Product Detail

Product Tags

Shop JST S03B-XASK-1(LF)(SN). A 3-position, 2.5mm pitch right angle shrouded header from XA series. Features secure locking ramp and board locks for high-vibration PCB applications. 3A/250V rated.

Data Overview

Attribute Category	Technical Specification
Manufacturer	JST Sales America Inc.
Full Part Number	S03B-XASK-1(LF)(SN)
Connector Series	XA (Secure Lock)
Positions	3 Pins
Pitch (Mating)	2.50 mm
Mounting Angle	Right Angle / Side Entry
Termination Style	Solder (Through Hole)
Current Rating	3 A (AC/DC)
Voltage Rating	250 V (AC/DC)
Contact Material	Copper Alloy (Tin Plated)
Housing Material	Polyamide (PA66), Glass Filled
Color	Natural (Off-White)
Flammability Rating	UL94 V-0
Operating Temp	-25°C to +85°C

Product Details

Engineering Features & Specs	Technical & Assembly Advantages	Strategic Business Benefits
Right Angle (Side Entry) Profile	Mounts parallel to the PCB, significantly reducing the vertical clearance required for wiring.	Compact Product Design: Enables the development of slimmer electronic devices and low-profile control boxes, meeting modern miniaturization trends.
Integrated Secure Locking Ramp	Provides a strong mechanical latch that requires intentional force to disconnect.	High-Vibration Reliability: Ensures zero accidental disconnections in industrial machinery or household appliances, drastically reducing field maintenance and warranty costs.
Mechanical Board Lock Feature	Includes a built-in snap-fit board lock that stabilizes the header during the soldering process.	Improved Production Yield: Prevents the header from tilting or lifting during wave soldering, ensuring consistent quality and reducing manual rework on assembly lines.
4-Wall Shrouded Housing	Fully protects the 3 male pins from bending or contamination during handling.	Enhanced Component Longevity: Minimizes risk of pin damage or short circuits caused by improper mating, ensuring long-term system uptime and safety.

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Q1: How does the “Board Lock” feature help in the assembly process?

A: The S03B-XASK-1 features a mechanical board lock that snaps into the PCB before soldering. This keeps the header perfectly aligned and prevents it from shifting or floating during the wave soldering process, which is a common issue with standard right-angle headers.

Q2: Is this XA series header compatible with standard XH series wire housings?

A: No, the XA series uses a 2.50mm pitch with a specific secure locking mechanism, while the XH series is 2.50mm but is a friction-lock type. To ensure a secure connection and proper IP/Vibration ratings, you must use the matching JST XA series female housings (e.g., XAP-03V-1).

Q3: Can this connector handle high-vibration automotive environments?

A: While primarily designed for industrial and consumer electronics, its locking ramp and shrouded design make it much more vibration-resistant than standard headers. It is widely used in applications like factory automation and home appliances where reliability under stress is critical.