SFM-125-T2-ZZ-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC SFM-125-T2-ZZ-D-A-K-TR is a 50-position dual-row high-reliability SMT socket strip with 0.050 inch pitch, ZZ-profile, keying, and tape-and-reel packaging. Designed for dense mezzanine interconnects. From $5.00, in stock, worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- SFM-125-T2-ZZ-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-125-T2-ZZ-D-A-K-TR?
- 50-position dual-row socket at 0.050 inch (1.27 mm) pitch providing 100 total contacts for ultra-high-density FPGA, DSP, and processor module interconnects
- ZZ zero-insertion-force-compatible profile with anti-mismating keying (K) prevents incorrect connector engagement and eliminates bent pins during mating in field-serviceable assemblies
- Tape-and-reel (TR) packaging for automated SMT pick-and-place assembly, maintaining consistent placement accuracy across the 50-position dual-row footprint during high-volume production
What is SFM-125-T2-ZZ-D-A-K-TR used for?
The SFM-125-T2-ZZ-D-A-K-TR is engineered for high-density mezzanine and module stacking applications in FPGA evaluation boards, embedded computing platforms, and high-speed data acquisition systems requiring 50 dual-row positions at 0.050 inch pitch. The ZZ profile and keying option ensure correct mating orientation in multi-board assemblies where access is limited and misalignment risk is high. This surface-mount socket strip is also used in telecommunications daughtercard interfaces and advanced driver assistance system (ADAS) development hardware where reliable multi-hundred-pin signal routing is critical.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SFM-125-T2-ZZ-D-A-K-TR datasheet?
SFM-125-T2-ZZ-D-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-125-T2-ZZ-D-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total contacts does the SFM-125-T2-ZZ-D-A-K-TR provide and what signal density does this support?
The SFM-125-T2-ZZ-D-A-K-TR provides 50 positions in a dual-row configuration at 0.050 inch (1.27 mm) pitch, giving a total of 100 individual contacts within a compact SMT footprint. This density supports simultaneous routing of 64-bit data buses plus address, control, and power lines, making it suitable for FPGA module interfaces, DSP boards, and high-speed memory expansion cards where wide parallel interfaces are required.
What design scenarios make the 0.050 inch pitch of the SFM-125-T2-ZZ-D-A-K-TR preferable over 0.100 inch pitch connectors?
The 0.050 inch (1.27 mm) pitch halves the center-to-center spacing compared to 0.100 inch connectors, allowing the 50-position dual-row SFM-125-T2-ZZ-D-A-K-TR to fit in a PCB area roughly 50% smaller than an equivalent 0.100 inch pitch connector. This is preferable in space-constrained mezzanine modules such as COM Express Type 6 or SMARC 2.0 carrier boards where board area under 100 mm x 100 mm must accommodate 80+ signal connections alongside power and ground pins.
When does the keying (K) option on the SFM-125-T2-ZZ-D-A-K-TR prevent costly assembly errors?
The keying (K) option adds a polarization key to the 50-position dual-row connector body that physically prevents the mating header from being inserted in the reverse orientation. In a 100-contact interface at 0.050 inch pitch, a reversed connection would swap power and ground signals across 2 or more pins, potentially destroying ICs and FPGAs within milliseconds of power-on. The keying prevents this failure mode during both automated PCB assembly and manual module installation in the field, protecting investments in high-cost components such as FPGAs priced above $100 each.
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