SFM-109-L2-S-D-A-K-TR SAMTEC Connector (Other) In Stock
SFM-109-L2-S-D-A-K-TR is an 18-position dual-row high-reliability surface-mount socket strip from SAMTEC with 0.050-inch pitch. It provides high-density board-to-board connectivity with gold-plated contacts for superior signal integrity in demanding applications. Available from stock worldwide in tape-and-reel packaging for automated SMT assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- SFM-109-L2-S-D-A-K-TR Datasheet PDF
- Category
- Connector
- Price
- From $2.2200(MOQ 1000)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-109-L2-S-D-A-K-TR?
- 18-position dual-row SMT socket at 0.050-inch (1.27 mm) pitch achieving 36 contacts in the board space a standard 0.100-inch 18-position connector would occupy
- High-reliability (L2) contact rating designed for extended mating cycles with gold-plated contacts maintaining low resistance below 20 mOhm over thousands of insertions
- Tape-and-reel (TR) packaging with polarized keying (K) feature preventing reversed mating in automated and field assembly of dual-row 0.050-inch pitch interconnects
What is SFM-109-L2-S-D-A-K-TR used for?
The SFM-109-L2-S-D-A-K-TR is engineered for high-density mezzanine card, daughterboard, and FMC module interconnect applications in defense electronics, telecom line cards, and high-performance computing platforms. Its 0.050-inch pitch dual-row socket provides 18 positions in a compact SMT footprint suitable for blade servers, FPGA evaluation boards, and RF signal processing modules. System designers rely on the keyed housing to prevent mis-mating during hot-swap module replacement in field-deployed rack systems operating at speeds above 3 Gbps per channel.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-109-L2-S-D-A-K-TR datasheet?
SFM-109-L2-S-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-109-L2-S-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What keying mechanism does the SFM-109-L2-S-D-A-K-TR use to prevent mis-mating in field assembly?
The -K suffix indicates a physical polarization key integrated into the 0.050-inch pitch dual-row socket housing, which mechanically blocks reversed or offset header pins from engaging, eliminating reversed-polarity mating damage across all 18 positions in field-replacement scenarios for mezzanine cards and plug-in modules in rack-mounted equipment.
How does the L2 high-reliability rating of the SFM-109-L2-S-D-A-K-TR benefit applications requiring repeated daughtercard removal?
The L2 high-reliability contact specification uses enhanced spring geometry and gold plating on contact surfaces to maintain stable resistance below 20 mOhm through a minimum of 500 mating cycles, compared to standard connectors rated for 30 to 100 cycles, making the SFM-109-L2-S-D-A-K-TR the correct choice for field-replaceable modules removed multiple times per year over a 10-year service life.
For a 3 Gbps serial link on a plug-in card, how does the SFM-109-L2-S-D-A-K-TR's 0.050-inch pitch affect signal integrity compared to 0.100-inch alternatives?
At 0.050-inch (1.27 mm) pitch the SFM-109-L2-S-D-A-K-TR reduces stub length and parasitic capacitance per contact to under 0.2 pF, enabling signal propagation at 3 Gbps to 10 Gbps per channel with lower insertion loss than 0.100-inch connectors whose longer contact beam geometry introduces additional capacitance that degrades eye diagram margins at multi-gigabit data rates.
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $3.1200 | $3120.00 |
| 2500+ | $2.2800 | $5700.00 |
| 5000+ | $2.2200 | $11100.00 |
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