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  • In Stock: 2400
  • Available: 19000

Reference Price(In US Dollars)

QtyUnit PriceExt.Price
1+US $2.16300US $2.16
10+US $1.44200US $14.42
30+US $1.08150US $32.45
100+US $0.86520US $86.52
500+US $0.79310US $396.55
1000+US $0.72100US $721.00

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The S8421-45R connector from Harwin is a robust and reliable board-to-board connector designed for demanding applications in industrial, aerospace, automotive, and other harsh environments. Known for its high-quality construction, secure mating mechanism, and excellent electrical performance, the S8421-45R connector provides a dependable interconnection solution for critical electronic systems.

Key Features:

  1. Rugged Construction: The S8421-45R connector features a ruggedized construction with high-grade materials, ensuring durability and resistance to mechanical stress, shock, vibration, and environmental hazards. It is capable of withstanding harsh operating conditions, including temperature extremes, moisture, dust, and chemicals, making it suitable for use in challenging environments.
  2. Compact Design: With a compact and space-saving design, the S8421-45R connector offers a high-density interconnect solution for applications where board space is limited. Its low-profile form factor enables close stacking of PCBs and minimizes overall system footprint without compromising on performance or reliability.
  3. Secure Mating Mechanism: Equipped with a reliable mating mechanism, the S8421-45R connector ensures secure and stable connections between mating pairs of connectors. It features a positive locking mechanism or friction lock design that prevents accidental disconnection and provides audible and tactile feedback upon mating, ensuring proper engagement and alignment.
  4. High-Speed Data Transmission: The S8421-45R connector is designed to support high-speed data transmission and signal integrity in digital communication systems. It features impedance-matched signal contacts, low insertion loss, and minimal crosstalk, enabling reliable data transfer at high data rates with minimal signal degradation or distortion.
  5. Wide Operating Temperature Range: Engineered to perform across a wide operating temperature range, the S8421-45R connector ensures consistent and reliable operation in both extreme cold and hot environments. It maintains electrical performance and mechanical integrity over a temperature range typically from -40°C to +125°C, making it suitable for use in automotive, aerospace, and industrial applications.
  6. Versatile Configurations: The S8421-45R connector is available in various configurations, including different contact layouts, stack heights, and mounting options, to accommodate diverse application requirements. It offers flexibility in design and compatibility with standard PCB footprints, allowing for easy integration into new or existing electronic systems.
  7. RoHS Compliance: Manufactured in compliance with Restriction of Hazardous Substances (RoHS) directives, the S8421-45R connector is free from harmful substances such as lead, mercury, cadmium, and hexavalent chromium, making it environmentally friendly and compliant with global regulatory standards.


  • Industrial automation and control systems
  • Aerospace and defense electronics
  • Automotive electronics
  • Robotics and unmanned vehicles
  • Telecommunications equipment
  • Medical devices and instrumentation
  • Test and measurement instruments
  • Energy and power systems
  • Consumer electronics

The S8421-45R connector from Harwin is a high-quality, high-performance interconnect solution designed to meet the demanding requirements of modern electronic systems. With its rugged construction, secure mating mechanism, high-speed data transmission capabilities, wide temperature range, and versatile configurations, it provides engineers and designers with a reliable connectivity solution for mission-critical applications in various industries.


Functional Equivalent (FE) materials, including Fused Filament Fabrication (FFF) form, assembly, and functionally compatible substitute materials.


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