SFM-111-L2-L-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-111-L2-L-D-A-K is a 22-position dual-row high-reliability surface mount socket strip with 0.050" pitch, L2 locking, and kinematic keying. Designed for mezzanine and board-to-board stacking with secure mating retention, it supports dense signal routing in compact PCB layouts. Competitively priced and available from global distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 22
- Lifecycle
- ACTIVE
- Datasheet
- SFM-111-L2-L-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 22-position dual-row socket strip on 0.050" (1.27 mm) pitch for compact high-density board-to-board signal routing
- L2 locking latch provides positive retention force to prevent unmating under vibration or mechanical shock
- Kinematic keying (K suffix) prevents mis-orientation during mating, reducing assembly errors in automated and manual builds
Applications
The SFM-111-L2-L-D-A-K is ideal for compact mezzanine board stacking in portable instruments, embedded module designs, and consumer electronics where a 22-position dual-row socket must stay mated under routine handling. Its 0.050" pitch minimizes board area while the L2 locking and kinematic keying combination simplifies field-replacement of daughter boards without risk of backward insertion. The surface mount termination integrates into standard reflow assembly processes up to 260°C peak.
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
How does the L2 locking mechanism on SFM-111-L2-L-D-A-K prevent accidental unmating on a portable instrument with vibration?
The L2 locking latch on the SFM-111-L2-L-D-A-K requires a deliberate release force — typically above 5 N axial pull — before the 22-position dual-row connector separates. Without this latch, standard friction-fit 0.050" pitch SMT sockets may disengage under sustained vibration above 5 g, causing signal interruptions. The L2 mechanism is therefore specified for portable field instruments, ruggedized embedded modules, and handheld testers subject to drop or transit shock.
What board area does the 22-position SFM-111-L2-L-D-A-K occupy on a PCB compared to a 0.100" pitch equivalent?
The SFM-111-L2-L-D-A-K on 0.050" (1.27 mm) pitch spans 11 positions per row x 1.27 mm = approximately 14 mm per row, with a 2-row width of about 2.0 mm — giving a total footprint near 14 mm x 2 mm. A 0.100" (2.54 mm) pitch alternative for the same 22-position count would span approximately 28 mm per row, consuming twice the board length and requiring more than 55 mm² versus roughly 28 mm² for the SFM-111.
When mating the SFM-111-L2-L-D-A-K, which SAMTEC male header series is the correct counterpart?
The SFM-111-L2-L-D-A-K mates with SAMTEC's SFM-compatible vertical or right-angle male pin headers in the SFM or MEC series on the same 0.050" (1.27 mm) dual-row pitch. The kinematic keying (K suffix) on the socket requires the corresponding keyed male header — typically denoted by the K or matching A key in the male part number — ensuring proper polarization. For a 22-position socket, the matching male header carries 22 positions (11 per row) on 1.27 mm centers, with up to 0.5 A per contact signal rating.
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.”