SFM-133-L2-H-D-A-K SAMTEC Connector (Other) In Stock
The SFM-133-L2-H-D-A-K is a 66-position dual-row high-reliability socket strip from SAMTEC with 0.050 inch (1.27 mm) pitch and surface mount termination. It is designed for dense mezzanine and board-stacking interconnects in high-performance embedded systems. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 66
- Lifecycle
- ACTIVE
- Datasheet
- SFM-133-L2-H-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 66-position dual-row configuration at 0.050 inch (1.27 mm) pitch for ultra-high-density SMT socket interconnects
- High-reliability socket strip design rated for extended mating cycles in demanding industrial and aerospace environments
- Surface mount termination enables automated reflow soldering and eliminates through-hole drilling for double-sided PCB optimization
- Dual-row layout provides 33 positions per row, maximizing signal density per unit PCB length at 1.27 mm pitch
Applications
The SFM-133-L2-H-D-A-K is used in high-density mezzanine card interconnects, FPGA daughter card sockets, and high-reliability board-stacking assemblies where 66 signal or power connections are needed at a 0.050 inch pitch. Its surface mount footprint makes it compatible with compact PCBs in aerospace avionics, military electronics, and industrial computing modules that require a low-profile, high pin-count socket. The high-reliability contact design is particularly valued in applications demanding thousands of mating cycles with consistent low contact resistance.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What pitch and position count does the SFM-133-L2-H-D-A-K provide, and how does this compare to standard 0.100 inch pitch sockets?
The SFM-133-L2-H-D-A-K operates at a 0.050 inch (1.27 mm) pitch with 66 total positions in a dual-row layout of 33 positions per row. Compared to standard 0.100 inch (2.54 mm) pitch sockets, this 1.27 mm pitch doubles the pin density per unit board length, enabling 66 connections within roughly half the PCB footprint, which is critical for compact mezzanine card designs.
In which high-reliability applications is the SFM-133-L2-H-D-A-K typically deployed?
This SAMTEC socket strip is commonly used in aerospace avionics, military electronics, and industrial control modules that demand high mating cycle reliability. The high-reliability socket contact design maintains low contact resistance typically below 20 milliohms over thousands of insertions, making it suitable for mission-critical mezzanine card sockets in environments with vibration, temperature swings from -55°C to +85°C, and frequent board swaps.
How does the surface mount design of the SFM-133-L2-H-D-A-K simplify PCB manufacturing?
The surface mount termination of the SFM-133-L2-H-D-A-K eliminates through-hole drilling for 66 positions, reducing PCB fabrication cost and enabling placement on densely routed inner-layer boards. It is compatible with standard SMT reflow soldering at typical peak temperatures of 260°C (per J-STD-020), and the 1.27 mm pitch pads fit standard SMT stencil designs for high-volume automated assembly.
When is the SFM-133-L2-H-D-A-K a better socket choice than a 0.100 inch pitch equivalent for an FPGA mezzanine card?
The SFM-133-L2-H-D-A-K is preferable when board area constraints prevent using a 0.100 inch pitch socket with 66 positions, since its 0.050 inch pitch reduces the connector body length by approximately 50%. For FPGA mezzanine cards requiring 66 I/O connections in a compact FMC or PC/104 form factor where the host board provides less than 85 mm of connector mounting length, the 1.27 mm pitch version fits while a 2.54 mm pitch equivalent would not.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 2026
Why Buy from FindMyChip
About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”