SFM-143-T2-FM-D-A-K SAMTEC Connector (Other) In Stock
SFM-143-T2-FM-D-A-K is an 86-position, dual-row, high-reliability surface-mount socket strip at 0.050 inch pitch, featuring T2 terminals, guide posts, and keyed housing for precise and secure board-stacking interconnect. From $4.20 in stock worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 86
- Lifecycle
- ACTIVE
- Datasheet
- SFM-143-T2-FM-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 surface-mount socket at 0.050 inch pitch accommodates wide parallel buses and dense signal interfaces on compact mezzanine boards
- T2 terminal and FM guide-post construction provides mechanical alignment and retention during mating, reducing connector skew on high-pin-count interfaces
- Keyed housing (K-suffix) ensures correct single-orientation insertion, preventing mis-mating damage across all 86 signal contacts
- High-reliability surface-mount design rated for extended thermal cycling from -55°C to +125°C, suitable for industrial and communications-grade applications
Applications
SFM-143-T2-FM-D-A-K targets mezzanine card and daughterboard stacking in high-density PCB assemblies for industrial control, telecommunications switching, and embedded computing platforms where 86 signals must be routed at 0.050 inch pitch in a surface-mount footprint. The T2/FM guide-post features provide the alignment precision required for automated board stacking in volume production lines. Its operating range of -55°C to +125°C also suits ruggedized environments including transportation electronics and military-grade computing modules.
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 does the T2-FM feature on SFM-143-T2-FM-D-A-K aid precise board alignment during mezzanine stacking?
The T2 terminal posts and FM guide posts on SFM-143-T2-FM-D-A-K mechanically locate the mating header and socket into correct coplanar alignment before any of the 86 signal contacts engage, preventing the angular mis-mating that can bend 0.050 inch pitch contacts and is particularly critical in automated board-stacking assembly where manual visual inspection is not feasible.
What bus width can a designer route through SFM-143-T2-FM-D-A-K in a dual-row 86-position configuration?
With 86 positions in a dual-row 0.050 inch pitch layout, SFM-143-T2-FM-D-A-K can carry a 64-bit wide data bus plus 22 control, address, or power signals simultaneously, or a full 80-bit ECC memory bus with 6 spare lines, making it suitable for FPGA-to-processor interfaces, high-speed memory mezzanines, and wide parallel ADC/DAC board interconnects.
Which industries commonly specify SFM-143-T2-FM-D-A-K for long-lifecycle product designs?
Telecommunications OEMs, industrial automation integrators, and defence electronics manufacturers frequently specify SFM-143-T2-FM-D-A-K because its -55°C to +125°C operating range, high-reliability socket construction with gold-plated contacts, and SAMTEC's long-lifecycle part numbering support product programs spanning 10 to 15 years without connector redesign.
How does SFM-143-T2-FM-D-A-K compare to SFM-145-02-F-D-A-K when selecting between 86-position and 90-position SAMTEC socket strips?
SFM-143-T2-FM-D-A-K provides 86 positions with T2 terminal and FM guide-post mechanical features, while SFM-145-02-F-D-A-K provides 90 positions in a simpler F-series form; designers needing the extra 4 positions to close out a complete 90-signal bus choose the SFM-145 variant, while those prioritising alignment and retention mechanics in a slightly smaller 86-pin footprint approximately 54.4 mm long select the SFM-143-T2-FM-D-A-K.
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