SFM-143-02-STL-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-143-02-STL-D-A-K is an 86-position dual-row high-reliability socket strip with 1.27 mm (0.050 inch) pitch and surface mount termination. It features a keyed housing to prevent mismating and precision-machined contacts for consistent low-resistance connections. Suited for demanding board-to-board signal interconnect applications in compact electronics.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- SFM-143-02-STL-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 86-position dual-row configuration at 1.27 mm (0.050") pitch enabling high signal-count SMT board-to-board connections
- STL (short tail) termination variant optimized for low-profile SMT solder joints with minimal standoff height
- Keyed housing (K suffix) enforces correct insertion orientation, eliminating mating errors in production and field use
Applications
The SFM-143-02-STL-D-A-K is designed for use in FPGA mezzanine cards, high-channel-count data acquisition boards, and industrial embedded modules requiring 86-pin dual-row socket connectivity with a low-profile SMT footprint. The short-tail (STL) termination style is particularly advantageous in applications where board clearance is minimal and consistent solder joint height is critical for reliable PCB assembly.
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 designation in SFM-143-02-STL-D-A-K specify about the connector termination?
The STL designation stands for short tail, referring to the reduced length of the SMT termination leads on the SFM-143-02-STL-D-A-K. This results in a lower solder joint standoff height compared to standard tail lengths, which is important in tight board-to-board stacking configurations where clearances are under 5 mm.
How many signal positions and at what pitch does SFM-143-02-STL-D-A-K support?
The SFM-143-02-STL-D-A-K provides 86 positions in a dual-row layout at 1.27 mm (0.050 inch) pitch. This combination delivers 86 signal channels within a compact SMT footprint, and the keying feature ensures all 86 positions are correctly aligned during mating in automated assembly or manual installation.
Is SFM-143-02-STL-D-A-K a suitable alternative to SFM-143-T2-S-D-A for the same 86-pin application?
Both connectors serve 86-position dual-row applications at 1.27 mm pitch, but the SFM-143-02-STL-D-A-K differs in offering a short-tail SMT termination and mechanical keying, whereas SFM-143-T2-S-D-A uses a different tail variant without keying. Designers requiring at least 100 mating cycles, mismating prevention, and a lower SMT solder profile should prefer the STL-D-A-K variant.
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