SFM-121-L2-S-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-121-L2-S-D-A-K is a 42-position dual-row high-reliability surface-mount socket strip with 0.050 inch (1.27 mm) pitch designed for high-density board-to-board connections. Available in stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SFM-121-L2-S-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-121-L2-S-D-A-K?
- 42-position dual-row layout at 0.050 inch (1.27 mm) pitch for high-density signal routing
- Surface-mount termination enabling reflow-compatible PCB assembly with automated placement
- High-reliability socket strip construction rated for demanding vibration and mating cycle environments
- Compact footprint supporting space-constrained board-to-board interconnect designs
What is SFM-121-L2-S-D-A-K used for?
The SFM-121-L2-S-D-A-K is used in high-density board-to-board interconnect applications such as embedded computing modules, FPGAs, and DSP daughtercards where 0.050 inch pitch saves PCB real estate. Its surface-mount profile makes it compatible with automated SMT assembly lines in telecom, defense, and industrial control equipment. The dual-row configuration provides 42 signal positions per connector, enabling data-intensive parallel bus connections in compact system designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-121-L2-S-D-A-K datasheet?
SFM-121-L2-S-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-121-L2-S-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal positions does SFM-121-L2-S-D-A-K provide and at what pitch?
The SFM-121-L2-S-D-A-K provides 42 positions arranged in a dual-row configuration at 0.050 inch (1.27 mm) pitch, delivering high signal density for board-to-board connections in space-constrained designs.
Can SFM-121-L2-S-D-A-K be placed with standard SMT pick-and-place equipment?
Yes, the SFM-121-L2-S-D-A-K features a surface-mount termination style compatible with automated pick-and-place and reflow soldering at standard SMT profile temperatures, integrating into high-volume PCB assembly lines without special tooling.
What board-to-board applications are best suited for SFM-121-L2-S-D-A-K?
FPGA mezzanine cards, embedded processor daughterboards, and telecom line cards benefit from the SFM-121-L2-S-D-A-K's 42-pin dual-row layout and 0.050 inch pitch, which supports parallel buses at 42 signals per mating pair within a compact SMT footprint.
When should SFM-121-L2-S-D-A-K be chosen over a single-row strip of equivalent pitch?
Choose SFM-121-L2-S-D-A-K when a design requires more than 21 signals but must minimize connector length; the dual-row layout nearly halves the board edge length compared to a single-row 42-pin strip at the same 1.27 mm pitch.
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