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
Key Features
- 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
Applications
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) |
Alternate & Equivalent Parts
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.
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