SFM-149-L2-H-D-A-P-TR SAMTEC Connector (Other) In Stock
SFM-149-L2-H-D-A-P-TR is a 98-position dual-row high-reliability SMT socket strip from Samtec with a fine 1.27 mm (0.050") pitch, gold-plated contacts, and tape-and-reel packaging for automated placement. Each contact is rated for 1.5 A current and the series supports high-density board-to-board mating with Samtec TSM or SFM-series pin headers. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- SFM-149-L2-H-D-A-P-TR 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-H-D-A-P-TR?
- 98-position dual-row 1.27 mm (0.050") pitch SMT socket for high-density board-to-board stacking with minimal board footprint
- High-reliability gold-plated contacts rated 1.5 A per pin ensure stable low-resistance mating across thousands of mate/unmate cycles
- Tape-and-reel (TR) packaging for automated pick-and-place with full compatibility with lead-free SAC305 reflow profiles
What is SFM-149-L2-H-D-A-P-TR used for?
The SFM-149-L2-H-D-A-P-TR is used on high-density daughter cards, processor modules, and memory expansion boards where 98 signals must be routed through a compact 1.27 mm pitch dual-row interface. Its fine pitch and SMT termination style make it ideal for space-constrained telecom blades, FPGA mezzanine cards, and test-and-measurement modules that need reliable repeated mating and de-mating. The gold contact finish and high-cycle-life construction support prototype bring-up jigs and field-upgradeable modular systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-149-L2-H-D-A-P-TR datasheet?
SFM-149-L2-H-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-149-L2-H-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many signal positions does the SFM-149-L2-H-D-A-P-TR provide and how are they physically arranged?
The SFM-149-L2-H-D-A-P-TR provides 98 total positions arranged as 2 rows of 49 contacts each, spaced on a 1.27 mm (0.050") pitch. The dual-row layout concentrates these 98 circuits into a strip length of approximately 49 × 1.27 mm = 62 mm, making it a highly space-efficient solution compared to 2.54 mm pitch alternatives that would need roughly twice the board length for the same signal count.
What current rating does each contact carry in the SFM-149-L2-H-D-A-P-TR and is it adequate for mixed power-and-signal use?
Each contact in the SFM-149-L2-H-D-A-P-TR is rated at 1.5 A continuous current with contact resistance below 30 mΩ, keeping ohmic heating minimal at typical signal loads under 500 mA. For mixed power rails alongside signals, designers commonly group 3 to 4 adjacent pins to carry a single 3.3 V or 1.8 V supply, providing 4.5 A to 6 A aggregate current through the shared supply group without derated temperature rise.
Which Samtec mating headers are compatible with the SFM-149-L2-H-D-A-P-TR socket strip?
The SFM series sockets mate with Samtec TSM dual-row pin headers and SFM-series pin strips at the matching 1.27 mm pitch and 2×49 arrangement. Specifically, TSM-149 or SFM-149 pin-side variants with the same row count pair directly. The H suffix in the part number denotes a 2.41 mm (0.095") above-board stack height for the socket, defining the board-to-board separation when mated.
How does the tape-and-reel packaging of the SFM-149-L2-H-D-A-P-TR support high-volume SMT manufacturing?
The -TR suffix specifies tape-and-reel delivery, typically in reels of 250 to 500 units depending on the carrier pocket size. This packaging feeds directly into standard 8 mm to 24 mm SMT pick-and-place feeders, eliminating manual load steps and reducing placement error rates to below 50 ppm on modern assembly equipment. The SMT solder tails are compatible with lead-free reflow at peak temperatures up to 260°C per J-STD-020.
For an FPGA mezzanine card requiring 90+ differential pairs, how does the SFM-149-L2-H-D-A-P-TR compare to a fine-pitch BGA socket?
The SFM-149-L2-H-D-A-P-TR provides 98 single-ended or 49 differential-pair lanes in a socketed strip format, with signal integrity maintained up to several hundred MHz for LVDS or SSTL interfaces on the 1.27 mm pitch. Unlike a BGA socket, the strip format allows visual inspection of solder joints, accommodates field replacement without rework stations, and supports selective de-population of individual rows, giving hardware teams greater flexibility during FPGA prototype iterations.
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About SAMTEC
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