SFM-134-L2-F-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-134-L2-F-D-A-K is a 68-position dual-row high-reliability socket strip at 0.050" (1.27 mm) pitch in a surface-mount configuration, providing a fine-pitch socket interface for dense board-to-board and mezzanine interconnects. Gold-over-nickel contacts ensure reliable low-resistance mating through extended insertion cycles in industrial and instrumentation applications. Available in stock from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 68
- Lifecycle
- ACTIVE
- Datasheet
- SFM-134-L2-F-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-134-L2-F-D-A-K?
- 68-position dual-row layout at 0.050" (1.27 mm) fine pitch enables high signal density while maintaining a compact connector footprint on surface-mount PCBs
- High-reliability socket strip construction with gold-over-nickel contacts provides stable contact resistance and long service life across 100+ mating cycles
- Surface-mount termination compatible with standard lead-free reflow processes eliminates through-hole via drilling and simplifies multi-layer PCB fabrication
What is SFM-134-L2-F-D-A-K used for?
The SFM-134-L2-F-D-A-K is targeted at mezzanine card sockets, FPGA piggyback modules, and modular test fixtures requiring 68 fine-pitch signal connections in a minimal PCB footprint. Its 0.050" pitch consolidates 68 signals into a body length roughly half that of an equivalent 0.100" pitch connector, making it ideal for compact daughter-card designs in medical devices and high-channel-count data acquisition systems. The surface-mount termination simplifies assembly on high-density multi-layer PCBs manufactured through automated reflow soldering processes.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-134-L2-F-D-A-K datasheet?
SFM-134-L2-F-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-134-L2-F-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the L2 designation in SFM-134-L2-F-D-A-K affect the connector's mounting height or lead style?
The L2 designation in the SFM-134-L2-F-D-A-K refers to the lead style variant that defines the surface-mount tail geometry and height above the PCB. Different L-series variants control the standoff height, which typically ranges from 1.5 mm to 4 mm, and the tail coplanarity tolerance critical for achieving uniform solder joint formation across all 68 positions during lead-free reflow at 260°C peak temperature.
For a medical data acquisition module needing 68 analog signal channels, why would a designer specify the SFM-134-L2-F-D-A-K over a standard 0.100" socket?
A 68-position socket at 0.050" (1.27 mm) pitch is approximately half the board length of an equivalent 0.100" socket, saving around 43 mm of PCB edge space in a dual-row configuration. Medical instruments with constrained form factors—such as patient monitoring modules or portable ultrasound front ends—benefit from this compact footprint while routing 68 analog input channels through a single high-reliability connector with gold-plated contacts rated for repeated card insertion.
What is the contact resistance specification for the SFM-134-L2-F-D-A-K and how does it affect signal integrity in high-speed differential pairs?
Samtec SFM series high-reliability socket strips maintain initial contact resistance below 20 mΩ per pin with gold-over-nickel plating, and this stays below 30 mΩ after 100 mating cycles. For high-speed differential pairs running at 1 Gbps to 3 Gbps, a 20 mΩ contact resistance introduces negligible voltage drop and contributes less than 0.1 dB insertion loss per contact, preserving signal integrity across the 68-position interface in data acquisition and communications mezzanine designs.
Related Guides
STM32H753VIT6 High-Performance MCU Design Guide
Practical STM32H753VIT6 design guidance for power, clocks, memory, DMA, PCB layout, bring-up, and production recovery.
Aug 3, 2026
STM32H753ZIT6 Selection Guide for High-Performance Embedded Systems
Select the STM32H753ZIT6 by evaluating compute, memory, LQFP144 pinout, power, interfaces, security, and sourcing requirements.
Aug 3, 2026
ICL7660ACPAZ Negative Voltage Charge Pump Design Guide
Design a reliable ICL7660ACPAZ negative rail with capacitor equations, layout rules, startup checks, and practical troubleshooting.
Aug 2, 2026
C0402C103K3RACTU 10 nF MLCC Design Guide
Practical guidance for applying the C0402C103K3RACTU 10 nF, 25 V X7R MLCC in decoupling, filtering, timing, and EMI-control networks.
Aug 2, 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.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector