2.54mm Pitch Dual Row SMT Female Header, Straight Surface Mount PCB Connector, HFNDMXX Series-ELETE | Professional Connector Manufacturer

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2.54mm Pitch Dual Row SMT Female Header, Straight Surface Mount PCB Connector, HFNDMXX Series

Double-Row Vertical SMT PCB Socket with Multi-Profile Height Options for Parallel Board-to-Board Stacking

HFNDM50-A074

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HFNDM50-A074

Serial Number：HFNDM50-A074

Connector & Cable

Board to board connector

Female Header

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A versatile 2.54mm pitch dual-row vertical SMT female header providing reliable, mid-profile surface mount connections for high-density multi-board electronic assemblies.

Feature	Specification
Model	HFNDM50-A074
Pitch	2.54 mm / 0.1 inch / 0.1"
Gender	Female Header, Socket Header, Receptacle
Rows	Dual Rows
Insulator Height	5.0mm, 7.1mm
Number of Pins	2 to 40 Pins per Row
Mounting Type	Surface Mount Technology(SMT)
Current Rating	3 A, 4A, 5A or as required
Insulation Resistance	1000MΩ Min
Dielectric Withstanding	600V AC
Contact Resistance	20mΩ Max
Operating Temperature	-40℃ to +105℃
Contact Material	Brass / Phosphor Bronze
Insulation Material	High-temp Polyester,UL94V-0 LCP/NL6T/PA9T
Suggested Mating Pin Length	4.0mm to 6.5mm
·All materials are RoHS and REACH compliant. Halogen-free options are available.

Key Features & Advantage

Automated SMT Assembly Support: Engineered for efficient Surface Mount Technology (SMT) production lines. Pick-and-place caps and Tape & Reel packaging ensure seamless, cost-saving automated assembly.
Dual Height Options (5.0mm & 7.1mm): Offers mid-profile housing height options, giving engineers flexible vertical clearance control when connecting parallel PCBs.
Reliable Dual-Beam Contacts: The dual-beam phosphor bronze contact design ensures stable wiping action and consistent retention force upon mating with male headers.
High-Density Grid Layout: Accommodates up to 80 total pins on a compact 2.54mm pitch layout, maximizing signal expansion paths on surface mount circuit boards.
High Thermal Durability: Molded with advanced NL6T or LCP thermoplastic materials, making it fully compatible with demanding lead-free reflow soldering processes.

Drawing

Classic Applications

Industrial Controls: SMT-based PLC extension cards, motor driver mainboards, and modular automation control units.
Consumer & Smart Home Electronics: Gateway hubs, smart meters, IoT devices, and digital screen panels.
Telecommunications: Access network modules, compact routers, base station interface cards, and blade server daughterboards.
Power Management Arrays: Solar inverter controls, power distribution modules, and battery chargers.
Medical Instruments: Internal stackable control board connections within diagnostic screens and laboratory monitoring devices.