SFM-137-02-L-D-LC-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-137-02-L-D-LC-TR is a 74-position, dual-row, 1.27 mm (0.050 inch) pitch high-reliability SMT socket strip with low-clearance (LC) housing in tape-and-reel packaging. Provides 148 total contacts at 1.5 A per pin for very-high-density mezzanine and board-to-board applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 74
- Lifecycle
- ACTIVE
- Datasheet
- SFM-137-02-L-D-LC-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-137-02-L-D-LC-TR?
- 74 dual-row positions at 1.27 mm (0.050 inch) pitch providing 148 total contacts for maximum-density mezzanine interfaces
- Low-clearance (LC) housing minimizing board-to-board stack height for slim multi-PCB assemblies
- High-reliability dual-row socket design rated for harsh environments from -55°C to +125°C
What is SFM-137-02-L-D-LC-TR used for?
SFM-137-02-L-D-LC-TR is designed for maximum-density board-to-board mezzanine interconnects in space-constrained, high-reliability systems such as satellite electronics, advanced FPGA carrier modules, and compact military computing boards. The low-clearance housing minimizes the mated stack height between PCBs, enabling thinner multi-board assemblies without sacrificing 148 contact positions. Tape-and-reel packaging ensures consistent component orientation for automated SMT placement in high-volume production.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-137-02-L-D-LC-TR datasheet?
SFM-137-02-L-D-LC-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-137-02-L-D-LC-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the low-clearance (LC) housing designation mean for SFM-137-02-L-D-LC-TR in multi-PCB stack assemblies?
The LC (low-clearance) designation on SFM-137-02-L-D-LC-TR indicates the connector body is designed with a reduced above-board height, decreasing the board-to-board mated standoff distance by several millimeters compared to standard-height SFM variants. This is critical in multi-PCB stacks where total enclosure height is constrained to less than 10 mm, such as compact avionics line-replaceable units.
How does SFM-137-02-L-D-LC-TR's 148 total contact count at 1.27 mm pitch compare to alternatives at 2.54 mm pitch?
SFM-137-02-L-D-LC-TR provides 148 contacts across 74 dual-row positions at 1.27 mm (0.050 inch) pitch, occupying approximately 94 mm of row length. An equivalent 2.54 mm pitch connector would need roughly 188 mm — twice the footprint — for the same 148 contacts, making the 1.27 mm pitch variant indispensable for dense FPGA I/O boards and high-bandwidth digital backplanes.
Which production approach is correct for SFM-137-02-L-D-LC-TR and what minimum reel quantity should buyers plan for?
The TR suffix confirms SFM-137-02-L-D-LC-TR ships in tape-and-reel format for automated SMT pick-and-place assembly, with typical reel quantities of 1000 to 3000 pieces per reel. Buyers prototyping fewer than 50 boards should inquire about cut-strip or sample packaging from SAMTEC to avoid committing to a full tape-and-reel minimum order quantity before validating the PCB layout.
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