SFM-121-T2-LM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-121-T2-LM-D-A-K is a 42-position dual-row high-reliability socket strip with 0.050" pitch for surface mount applications, providing 84 contacts in a compact footprint. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 42
- Lifecycle
- ACTIVE
- Datasheet
- SFM-121-T2-LM-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-T2-LM-D-A-K?
- 42-position dual-row socket at 0.050" (1.27 mm) pitch enabling 84-contact high-density SMT interconnects
- High-reliability construction suitable for military, aerospace, and ruggedized industrial connector applications
- Low-profile surface mount termination compatible with standard SMT reflow soldering processes
- Dual-row design maximizes contact density while minimizing board footprint compared to single-row alternatives
What is SFM-121-T2-LM-D-A-K used for?
The SFM-121-T2-LM-D-A-K is optimized for high-density, high-reliability signal interconnects in aerospace avionics, military electronics, and high-performance computing modules where 0.050" pitch connectors are required to maximize contact count per unit area. Its 42-position dual-row format provides 84 signal paths in a fraction of the space occupied by 0.100" pitch alternatives. Test and measurement equipment designers also use this socket strip for secure board-to-module mating in compact instrument chassis.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-121-T2-LM-D-A-K datasheet?
SFM-121-T2-LM-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-121-T2-LM-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total contacts does the SFM-121-T2-LM-D-A-K provide, and what is its pitch?
The SFM-121-T2-LM-D-A-K is a 42-position dual-row socket providing 84 total contacts at a 0.050" (1.27 mm) pitch, making it suitable for ultra-high-density signal routing on compact PCBs in size-constrained designs.
For which application environments is the high-reliability designation of the SFM-121-T2-LM-D-A-K most critical?
The high-reliability rating is most critical in aerospace, military, and medical applications where connectors must maintain contact integrity across thermal cycles from -55°C to +125°C and withstand mechanical shock and vibration per MIL-STD specifications.
How does the 0.050" pitch of the SFM-121-T2-LM-D-A-K benefit board-space-constrained designs compared to 0.100" pitch connectors?
At 0.050" (1.27 mm) pitch, the SFM-121-T2-LM-D-A-K achieves twice the contact density of 0.100" pitch alternatives, fitting 84 contacts in the same linear space that a 0.100" connector would require for only 42 contacts, saving significant PCB real estate.
What mating connector from SAMTEC pairs with the SFM-121-T2-LM-D-A-K?
SAMTEC's SHF or SFMC dual-row header strips at 0.050" pitch in 42-position dual-row configurations mate with the SFM-121-T2-LM-D-A-K, providing a secure 84-contact board-to-board or board-to-module mated interface rated for repeated mating cycles.
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