Hirose A4B Series Straight Through Hole Pin Header 16 Contacts 2 mm Pitch 1 Row Unshrouded A4B-16PA-2DSA(51)

Hirose A4B-16PA-2DSA(51) is a miniature, high-density, straight through hole pin header designed to provide reliable wire-to-board connections. It features 16 gold-plated brass contacts arranged in a single row with 2 mm pitch, making it ideal for compact PCB mounting in electronic equipment.

The connector's polyamide housing offers durability while maintaining a lightweight profile suitable for densely packed electronic assemblies. Operating safely over a temperature range from -55°C up to 85°C, this connector withstands harsh environmental conditions typically encountered in industrial and commercial electronics.

Termination is by solder through hole mount, ensuring secure mechanical and electrical connection to printed circuit boards. The pin header’s tail pin length is 2.6 mm, with a mating pin length of 3.5 mm, suitable for a variety of mating components.

These connectors are specifically engineered for miniature and lightweight applications requiring high-density mounting with 2 mm pitch grids. The unshrouded male contacts allow versatile configurations and easy assembly in wire-to-board and board-to-board setups. When used in board stacking, the connector accommodates a spacing of 6 mm between boards with A3B pin headers or 5.1 mm with A3C variants.

Manufactured in Japan, the Hirose A4B Series meets high reliability standards demanded in electronic, industrial, and instrumentation applications including consumer electronics, communication equipment, and automotive systems.

The connector supports a current rating of 1 ampere and voltage up to 200 volts. Gold-plated brass contacts ensure excellent conductivity and resistance to corrosion. Polyamide housing material contributes to lightweight yet durable construction.

Operating temperature range from -55°C to +85°C allows usage across extreme environments. Solder termination and through hole mount provide secure physical and electrical PCB connection. Single-row, 16-contact configuration with 2 mm pitch is suitable for compact PCB designs.

Unshrouded design permits flexible mating and easy inspection of contacts. Ideal for industrial, laboratory, electronic designs requiring miniature, high-density connectors.

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