SFM-149-02-LM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-149-02-LM-D-A-K is a 98-position dual-row high-reliability SMT socket strip with 0.050" (1.27 mm) pitch, featuring low-mount (LM) profile and keyed alignment for error-proof mating. Delivers dense signal connectivity in a compact surface-mount package. From $10.00; in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 98
- Lifecycle
- ACTIVE
- Datasheet
- SFM-149-02-LM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 98-position dual-row layout at 0.050" (1.27 mm) pitch enables ultra-high-density SMT signal routing
- Low-mount (LM) profile reduces connector stack height for space-constrained board assemblies
- Keyed (K) alignment feature prevents mis-mating, ensuring correct polarization across all 98 contacts
Applications
The SFM-149-02-LM-D-A-K is optimized for high-density board-to-board and module-to-board interconnects in embedded computing, data-acquisition systems, and ruggedized instrumentation requiring 98-position dual-row connectivity at 1.27 mm pitch. Its low-mount profile and keyed alignment make it ideal for stacked PCB assemblies and plug-in module designs where height clearance and mating accuracy are critical.
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
What does the low-mount (LM) designation mean for the SFM-149-02-LM-D-A-K board stack height?
The LM (low-mount) designation means the SFM-149-02-LM-D-A-K has a reduced above-board profile compared to standard SFM series strips, helping keep overall PCB stack height low — essential in enclosures with tight vertical clearances across 98-contact dual-row assemblies at 1.27 mm pitch.
How does the keyed (K) feature on SFM-149-02-LM-D-A-K prevent assembly errors?
The K (keyed) alignment polarization feature on the SFM-149-02-LM-D-A-K physically prevents incorrect 180-degree mating insertions, ensuring all 98 contacts align correctly with the mating plug — reducing rework costs and preventing damage to signal lines during board assembly or field replacement.
For which embedded computing or instrumentation designs is SFM-149-02-LM-D-A-K most appropriate?
The SFM-149-02-LM-D-A-K suits high-channel-count embedded modules, FPGA daughterboards, and data-acquisition expansion cards that need 98-position dual-row socket connectivity at 0.050" (1.27 mm) pitch with SMT reflow assembly and reliable keyed polarization.
How does SFM-149-02-LM-D-A-K compare to wider-pitch dual-row socket strips for signal density?
Compared to 0.100" (2.54 mm) pitch dual-row socket strips, the SFM-149-02-LM-D-A-K 0.050" pitch packs 98 positions into roughly half the board footprint, making it the preferred choice for compact PCBs where maximizing signal count per unit area is a primary design constraint.
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