SFM-136-L2-STL-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-136-L2-STL-D-A-P-TR is a 72-position, dual-row, high-reliability socket strip on 1.27 mm (0.050") pitch with SMT attachment, polarization, and tape-and-reel packaging. Gold-plated contacts with standard-tail length (STL) rating support -55°C to +125°C for aerospace and defense applications. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 72
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 72-position dual-row SMT high-reliability socket strip at 1.27 mm (0.050") pitch delivering 144 total contacts for dense FPGA and DSP mezzanine card interfaces
- Standard-tail length (STL) gold-plated contacts ensure consistent solder joint formation on SMT pads, optimizing signal integrity at high cycle counts
- Polarization (P) keying and tape-and-reel (TR) packaging support error-free automated assembly for aerospace and defense production
Applications
SFM-136-L2-STL-D-A-P-TR is designed for ultra-high-density mezzanine and daughter card interfaces in aerospace, defense, and industrial computing applications requiring up to 144 signal contacts at 1.27 mm pitch. The polarization feature prevents mis-insertion in field-replaceable module configurations critical for avionics line-replaceable units (LRUs) and rugged embedded computers. Its high-reliability construction and -55°C to +125°C temperature range ensure long-term performance in satellite payload boards and military ground vehicle electronics.
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 total contact positions does SFM-136-L2-STL-D-A-P-TR offer, and what pitch does it use?
SFM-136-L2-STL-D-A-P-TR provides 36 positions per row in a dual-row configuration, yielding 72 total high-reliability socket positions at 1.27 mm (0.050") pitch. This enables 72 or more independent signal paths in a compact SMT footprint suited to FPGA mezzanine cards, DSP processor daughterboards, and high-density avionics backplanes.
What does the STL (standard-tail length) designation mean for solder joint quality in SFM-136-L2-STL-D-A-P-TR?
The STL (standard-tail length) designation specifies the length of the SMT solder tails on SFM-136-L2-STL-D-A-P-TR, ensuring they extend a consistent distance onto the PCB pads for reliable solder joint formation during reflow at up to 260°C. Consistent tail length across all 72 positions minimizes the risk of cold joints or pad bridging in high-density 1.27 mm pitch SMT assemblies.
How does the P (polarization) option on SFM-136-L2-STL-D-A-P-TR reduce mis-mating risk in LRU field replacement?
The P (polarization) keying on SFM-136-L2-STL-D-A-P-TR mechanically restricts the 72-position connector to a single mating orientation, preventing reversed insertion of line-replaceable units (LRUs) in aerospace or defense systems. In environments where technicians swap boards under time pressure or low-visibility conditions, this key eliminates the risk of connecting 3.3 V or 5 V signal buses backwards, protecting sensitive avionics circuitry.
Is SFM-136-L2-STL-D-A-P-TR a viable choice for a VITA 57 FMC mezzanine card connector in an FPGA development platform?
SFM-136-L2-STL-D-A-P-TR at 1.27 mm pitch with 72 positions and high-reliability gold-plated contacts aligns with the dense interconnect requirements of VITA 57 FPGA Mezzanine Card (FMC) interfaces, which demand high pin counts, sub-2 mm pitch, and reliable signal integrity for multi-Gbps serial lanes. Its -55°C to +125°C rating and polarization feature further support the rugged performance needs of FPGA platforms used in aerospace test and signal processing.
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