ABB25DYFN-S1355

Overview

The ABB25DYFN-S1355 is a dual-sided card edge connector manufactured by Sullins Connector Solutions. It features 50 total positions arranged in two rows of 25 contacts each, with a 0.050-inch (1.27mm) centerline spacing. Designed for surface mount installation, the connector utilizes solder termination and cantilever contact types. The housing is constructed from polyamide PA9T nylon, colored black, and supports a card thickness of 0.062 inches (1.57mm). Contacts are made of beryllium copper with a gold plating thickness of 10.0µin (0.25µm), ensuring reliable electrical performance within an operating temperature range of -65°C to 150°C.

Feature Summary

• Dual-sided configuration with cantilever spring contacts for secure board retention
• Surface mount termination method compatible with automated assembly processes
• Gold-plated beryllium copper contacts providing corrosion resistance and low contact resistance
• High-temperature resistant polyamide insulation suitable for demanding thermal environments

Applications

• Industrial control system interface boards
• Telecommunications equipment backplanes
• Consumer electronics mainboard interconnections
• Automotive electronic module connections

Procurement Notes

Verify that the specific suffix DYFN corresponds to the required surface mount footprint and contact orientation, as variations exist within the product family. Confirm compliance with RoHS 3 standards if restricted substances are a constraint. Ensure the procurement channel provides original manufacturer documentation to validate the part number against the official Sullins Connector Solutions catalog specifications before finalizing orders.

Selection Notes

Select this component when a dual-sided, surface-mount connection is required for a 0.062-inch thick PCB. The 0.050-inch pitch allows for moderate density without requiring fine-pitch manufacturing capabilities. Consider the beryllium copper material for applications needing high fatigue resistance in the cantilever contacts. Verify that the operating environment remains within the specified -65°C to 150°C range to maintain material integrity and contact performance.

Part Context

This model belongs to the ABB series of card edge connectors from Sullins Connector Solutions. The series offers various position counts and termination styles, including through-hole and surface mount options. The ABB25 variant specifically addresses mid-range density needs with 50 positions, balancing space constraints with connectivity requirements for standard edge-card applications.

Replacement Considerations

Direct substitutes include other Sullins models with identical 50-position dual-sided surface mount specifications, such as those sharing the same 0.050-inch pitch and 0.062-inch card thickness compatibility. Cross-manufacturer replacements require strict verification of mating dimensions, contact force characteristics, and PCB footprint alignment to ensure mechanical and electrical interchangeability.