837-074-540-208

Edgeboard Connectors Overview

The EDAC Inc. 837-074-540-208 is a high-temperature card edge connector from the 837 Series, designed for reliable signal transmission in demanding environments. This component features a dual female configuration with 74 positions arranged in two rows, providing extensive connectivity options. The contact spacing is standardized at 0.156 inches (3.96 mm), ensuring compatibility with industry-standard board layouts. Constructed with copper alloy contacts and gold plating, it offers excellent conductivity and corrosion resistance. The insulator is made of green diallyl phthalate (DAP), supporting an operating temperature range of -40°C to 125°C.

Edgeboard Connectors Feature Summary

• Dual-edge female receptacle design accommodates double-sided card edges for enhanced signal routing capacity.
• Gold-plated copper alloy contacts ensure durable electrical performance and resistance to oxidation over time.
• High-temperature rated DAP insulator material maintains structural integrity across extreme thermal conditions.

Edgeboard Connectors Applications

• Industrial control systems requiring robust interconnects under variable thermal loads
• Telecommunications infrastructure utilizing standard card edge module formats
• Medical equipment needing reliable connections within specified temperature ranges

Edgeboard Connectors Procurement Notes

Verify that the specific part number matches the required dual-row configuration and position count before ordering. Confirm that the supplier provides documentation confirming RoHS3 compliance and REACH status as stated in official specifications. Ensure storage and handling procedures protect the gold-plated contacts from physical damage or contamination prior to installation on the printed circuit board.

Edgeboard Connectors Selection Notes

Select this model when a dual-sided card edge interface is necessary for higher density applications compared to single-row alternatives. The 0.156-inch pitch is critical for matching existing board designs without retooling. Consider the high-temperature rating if the operational environment exceeds standard commercial limits, ensuring the DAP material remains stable during peak thermal cycles.

Edgeboard Connectors Part Context

This component belongs to the EDAC 837 Series, a line of high-temperature card edge connectors known for durability in harsh conditions. The series utilizes DAP insulation and gold-plated contacts to support wide temperature ranges. Variants within the series differ primarily by position count and row configuration, allowing engineers to scale connectivity needs while maintaining consistent mechanical and electrical characteristics across the product family.

Edgeboard Connectors Replacement Considerations

Direct substitutes within the same series include models with identical 0.156-inch pitch and dual-row female configurations, such as the 837-074-540-808. Verify that any replacement maintains the same 74-position count and mounting style to ensure mechanical fit and electrical continuity without redesigning the host PCB layout.