WTB70SAD9SY-B82-9

Overview

The WTB70SAD9SY-B82-9 is a rectangular MIL-DTL-55302 series connector manufactured by Molex / AirBorn. It is a board mount receptacle featuring 70 positions in a dual-row configuration with a 2.54 mm pitch. The component utilizes through-hole termination for socket contacts and includes mounting ears. Constructed with a Polyphenylene Sulfide (PPS) body and gold-plated copper alloy contacts, it supports a current rating of 5 A and a voltage rating of 1 kV. The unit operates within a temperature range of -65 C to +125 C and provides an insulation resistance of 5 GOhms.

Feature Summary

• Complies with MIL-DTL-55302 military specifications for rugged rectangular interconnects.
• Features a guide set and mounting ears for secure board installation alignment.
• Includes a termination face sealed against conformal coating application.

Applications

• Military aerospace electronic systems
• Ruggedized communication equipment
• Avionics control units

Procurement Notes

Verify the specific suffix B82-9 against official datasheets to confirm the conformal coating seal feature. Ensure compatibility with mating plugs from the same W Series family. Confirm RoHS status and lead times directly with the manufacturer or authorized distributors due to potential supply chain variations for specialized military-grade components.

Selection Notes

Select this part for applications requiring high-density connections in constrained spaces with a 2.54 mm pitch. The straight through-hole design suits vertical board mounting. Verify that the 5 A current rating meets circuit requirements. Consider the PPS material properties for thermal stability in demanding environments.

Part Context

This component belongs to the AirBorn W Series, a line of rectangular connectors designed for harsh environments. The series offers various contact counts and termination styles. This specific model represents a high-pin-count receptacle variant optimized for reliable signal transmission in defense and industrial sectors.

Replacement Considerations

M55302/58-A70X is a documented alias for similar W Series receptacles. Verify pinout and mechanical dimensions before substituting. Cross-referencing with other MIL-DTL-55302 compliant manufacturers requires strict adherence to interface standards.

FAQ

What is the function of the B82-9 suffix?

The suffix indicates specific features such as the termination face being sealed against conformal coating, distinguishing it from standard variants.

Is this connector compatible with standard PCB layouts?

Yes, it uses a standard 2.54 mm pitch and through-hole termination, suitable for conventional PCB designs.