SFM-136-02-STL-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-136-02-STL-D-A-K is a 72-position dual-row surface mount socket strip with 0.050 inch pitch, gold-plated contacts, and polarization key for error-proof mating. It features a low-profile SMT footprint suited to high-density board-to-board connections in industrial and computing equipment. Available from authorized distributors with in-stock inventory and worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 72
- Lifecycle
- ACTIVE
- Datasheet
- SFM-136-02-STL-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 72-position dual-row configuration at 0.050 inch pitch with polarization key for mistake-proof connector orientation
- STL (straight tail length) variant optimized for controlled co-planarity in high-volume SMT reflow assembly
- Gold-plated contacts delivering consistent low contact resistance across hundreds of mating and unmating cycles
Applications
The SFM-136-02-STL-D-A-K is suited for daughter card and mezzanine board interconnects in industrial control systems, network switches, and embedded computing platforms requiring 72-pin high-density connections. The polarization key prevents incorrect board mating, making it especially valuable in field-replaceable module designs and rack-mount equipment with frequent plug-in operations.
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 STL suffix indicate on the SFM-136-02-STL-D-A-K, and why does it matter for assembly?
The STL suffix designates a straight tail length variant calibrated for optimal co-planarity during SMT reflow soldering. Maintaining all 72 contact tails within the specified height tolerance ensures reliable solder joint formation across all positions simultaneously, reducing the risk of open joints that can occur when tail height variation exceeds 0.1 mm on high-pin-count SMT connectors.
How does the polarization key on the SFM-136-02-STL-D-A-K prevent assembly errors?
The K suffix adds a molded polarization key that physically prevents the mating header from being inserted in the wrong orientation. This is critical on 72-position dual-row connectors at 0.050 inch pitch where a 180-degree mis-insertion is visually difficult to detect but would reverse signal assignments across all 72 pins and potentially damage the connected circuitry.
Which connector series mates with the SFM-136-02-STL-D-A-K for a complete board-to-board stack?
The SFM-136-02-STL-D-A-K mates with SAMTEC SFM series plug strips sharing the same 0.050 inch pitch and 72-position dual-row layout. Stack heights are determined by the mating plug's column height designator, typically ranging from 3 mm to 23 mm depending on the specific plug variant, allowing flexible PCB separation distances for different enclosure geometries.
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