SFM-149-L2-LM-D-A SAMTEC Connector (Other) In Stock
SAMTEC SFM-149-L2-LM-D-A is a 98-position dual-row high-reliability surface-mount socket strip at 0.050" (1.27 mm) pitch with gold-over-nickel contacts rated at 1 A per pin. Operating range -55°C to +125°C. Available from stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- SFM-149-L2-LM-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-149-L2-LM-D-A?
- 98-position dual-row SMT socket strip on 0.050" (1.27 mm) pitch delivering high pin density in a compact surface-mount footprint
- Gold-over-nickel contact finish ensuring reliable low-resistance mating at 1 A per pin across high insertion-cycle board-to-board connections
- High-reliability construction rated from -55°C to +125°C for demanding industrial, aerospace, and embedded computing mezzanine applications
What is SFM-149-L2-LM-D-A used for?
The SFM-149-L2-LM-D-A provides 98 dual-row contacts for dense mezzanine board stacking in industrial single-board computers, FPGA daughter cards, and communications line cards requiring both signal and low-level power distribution. Its 0.050" pitch reduces the required PCB connector footprint by up to 50% compared to 0.100" headers, making it ideal for size-constrained embedded computing platforms and ruggedized military or aerospace backplane interconnect designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-149-L2-LM-D-A datasheet?
SFM-149-L2-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-149-L2-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many contacts does the SFM-149-L2-LM-D-A provide and what current rating applies per pin?
The SFM-149-L2-LM-D-A provides 98 contacts arranged in a dual-row layout on 0.050" (1.27 mm) pitch, with each contact rated for 1 A continuous current. This allows the connector to carry up to 49 A of total current distributed across all pins, supporting combined signal and local power distribution in mezzanine computing and FPGA daughter card applications.
For an aerospace mezzanine card, what temperature range is the SFM-149-L2-LM-D-A qualified to operate within?
The connector is rated for -55°C to +125°C, a 180°C operational span meeting MIL-STD-810 temperature requirements for airborne electronics. The SMT solder attachment and high-reliability contact design maintain mechanical integrity across this thermal range, making it suitable for avionics, radar processing, and ruggedized embedded systems deployed in unpressurized equipment bays or harsh ground-vehicle environments.
How does the 0.050" pitch of the SFM-149-L2-LM-D-A compare to 0.100" socket strips for PCB layout density?
At 0.050" (1.27 mm) pitch, the 98-position SFM-149-L2-LM-D-A occupies a connector body length approximately half that of an equivalent 0.100" (2.54 mm) pitch dual-row strip. For a 98-position count, this translates to a footprint roughly 62 mm long versus 125 mm for 0.100" alternatives, recovering significant board area on FPGA mezzanine cards and SBC expansion modules where connector real estate directly constrains component placement zones.
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