B5743-226-M-T-R

Overview

The B5743-226-M-T-R is a male pin header from the Harwin Datamate L-Tek series. It features a 2-row configuration with 26 positions and a 2 mm (0.079 in) pitch. Designed for through-hole mounting, it utilizes solder pin termination. The connector employs a latch mechanism to ensure secure mating. Contact materials are specified as phosphor bronze with gold plating on the mating interface. The housing is constructed from polyester reinforced with glass fiber, rated UL94 V-0. It supports a voltage rating of 120V AC/DC and operates within a temperature range of -55°C to +125°C.

Feature Summary

• Datamate L-Tek series design with integrated latch for quick and secure mating
• Double-row shrouded header construction with four-wall shielding
• Through-hole solder termination for reliable board attachment
• Gold-plated contacts on phosphor bronze base material

Applications

• Board-to-board interconnections requiring high-density I/O
• Wire-to-board connections utilizing compatible female housings
• Industrial control systems operating in extreme temperature environments
• Test and measurement equipment interfaces

Procurement Notes

Verify RoHS compliance status carefully, as some sources indicate non-compliance while others suggest REACH SVHC details. Confirm the specific suffix 'R' denotes reel packaging if required for automated assembly. Cross-reference the exact part number against the latest manufacturer datasheet to ensure availability and correct contact finish specifications. Check for any recent PCN or EOL notices associated with the B5743 series.

Selection Notes

Select this component when a latched, double-row male header is required for robust mechanical retention. Ensure the mating counterpart is a compatible female socket from the same Datamate L-Tek family. Verify that the PCB layout accommodates the 2 mm pitch and through-hole pad dimensions. Consider the operating temperature range and voltage rating against application requirements before finalizing the design.

Part Context

This part belongs to the Harwin Datamate L-Tek rectangular connector system, known for its compact size and high reliability. The B5743 prefix indicates a male header variant. The series is widely used in electronics where space constraints and secure connection integrity are critical. It complements a broad ecosystem of accessories and mating components designed for harsh environments.

Replacement Considerations

Direct substitutes include other Harwin B5743 series headers with matching position counts and row configurations. Compatible alternatives may exist within the broader M80/M83 catalog families if form factor differences are acceptable. Always verify pinout compatibility and mechanical locking mechanisms before substituting.