1/30/2026 8:11:48 AM   By  Andrew  in

03NR-E4K I/O Connectors by JST


The I/O Connectors 03NR-E4K by JST are compact and reliable interconnect solutions designed for secure input/output connections in electronic and embedded systems. Known for precision engineering and long-term durability, JST connectors provide stable electrical performance, making them ideal for industrial, consumer, and communication devices.

Professional-grade bold: Connectors, I/O Connectors like the 03NR-E4K ensure dependable signal transmission, simplified assembly, and consistent operation even in high-vibration or tight-space environments.

You can buy genuine JST components from www.xonelec.com — globally trusted as X-On Electronics and XON Electronics.


Technical Specifications of 03NR-E4K


Product Overview

  • Manufacturer: JST

  • Part Number: 03NR-E4K

  • Product Type: I/O Connector

  • Mounting Style: Wire-to-board

  • Contact Type: Crimp termination

  • Housing Material: High-strength thermoplastic

  • Pitch: Compact configuration

  • Application: Signal and power connections

These features make it suitable for advanced bold: Connectors, I/O Connectors applications.


Key Features


Performance Benefits

  • Secure locking design

  • Easy wire insertion

  • Reliable contact stability

  • Compact and lightweight

  • Excellent insulation properties

  • Long mating cycle durability

Such characteristics make the 03NR-E4K one of the most dependable bold: Connectors, I/O Connectors used by engineers worldwide.


Applications


Common Use Cases

  • Consumer electronics

  • Data communication equipment

  • Control panels

  • Industrial automation

  • Embedded systems

  • PCB interconnects

Stable bold: Connectors, I/O Connectors are critical in maintaining uninterrupted signal and power transfer in these devices.


Installation Guidelines


Best Practices

  • Use compatible JST crimp tools

  • Verify wire gauge compatibility

  • Ensure proper locking engagement

  • Avoid over-bending wires

  • Test electrical continuity after installation

Correct installation ensures maximum life and reliability for bold: Connectors, I/O Connectors.


Why Choose JST 03NR-E4K?


JST is known for precision and durability in connector technology. The 03NR-E4K offers compact design, strong retention force, and stable conductivity, making it ideal for high-density PCB layouts and dependable bold: Connectors, I/O Connectors solutions.


Download Datasheet


Access the official datasheet for dimensions, ratings, material details, and recommended assembly procedures.03NR-E4K Datasheet .


Why Buy from XON Electronics?


  • 100% authentic JST parts

  • Competitive pricing

  • Ready stock availability

  • Fast global shipping

  • Reliable support team

Order today from www.xonelec.com for trusted sourcing and delivery.


Conclusion


The 03NR-E4K I/O Connectors by JST provide compact size, robust performance, and dependable connectivity, making them an excellent choice for modern bold: Connectors, I/O Connectors across industries.


FAQs – 03NR-E4K I/O Connectors


Q1. What is the primary use of 03NR-E4K?
It provides secure wire-to-board I/O connectivity.

Q2. Is it suitable for compact devices?
Yes, its small footprint supports space-constrained designs.

Q3. Does it support industrial environments?
Yes, it offers strong durability and stable connections.

Q4. What termination type is used?
Crimp termination.

Q5. Where can I buy genuine JST 03NR-E4K connectors?
From authorized suppliers like XON Electronics.




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