1.27mm SMT Female Header - Dual Row Bottom Entry Pass-Through Socket
Low Profile Dual-Row PCB Receptacle, Peg-Free Design for Flexible SMT Assembly
HFIDM22-A001
Serial Number:HFIDM22-A001
Low profile design, HFIDM22-A001 series features a peg-free, completely flat SMT base paired with dual-entry bottom contacts to achieve high-density parallel board-to-board bridging.
| Feature | Specification |
|---|---|
| Model | HFIDM22-A001 |
| Pitch | 1.27mm(0.05'') |
| Gender | Female Header |
| Rows | Dual Row, 03 to 40 Positions per row |
| Mounting Type | Bottom Contact / Top Entry Dual-Mode |
| Current Rating | 1 Ampere |
| 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 |
| ·All materials are RoHS and REACH compliant. Halogen-free options are available. | |
Key Features & Advantage:
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Peg-Free Flat SMT Design: Without plastic locating pegs beneath the insulator base, this connector eliminates the need for precision alignment holes on the PCB, freeing up underlying layer routing tracks and simplifying board drilling layouts.
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Ultimate 2.15mm Clearance Slimming: Specially trimmed to a 2.15mm profile, it allows developers to compress multi-layer PCB sandwiches together with unparalleled narrow spacing, perfect for slim handheld electronics.
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Dual-Entry Pass-Through Agility: Features the iconic bottom-contact design that accepts male headers passing through the PCB from the reverse side, supporting intricate, multi-level blind mating architectures.
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Flawless Automated Coplanarity : Every component features a uniform 0.15mm coplanarity line across all SMT leads, preventing soldering open-circuits and ensuring excellent yield rates during automated high-speed Pick-and-Place workflows.
Drawing

Classic Applications
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Smart Metering & IoT Sensor Hubs: Connecting sensor expansion daughterboards to the main processing unit from the back of the board to reduce total stacking volume.
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High-Density LED Display Control Arrays: Ideal for sandwich-style cascading multi-layered driver boards where signal lines must pass through from the bottom of neighboring modules.
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Miniaturized Embedded Compute Cards (PC104 / Micro-VME): Creating secure pass-through parallel data buses across vertically stacked embedded hardware systems.
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Industrial Automation & Drive Inverters: Bridging signal isolation barriers inside high-density motor driver modules and compact robotic control units.
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