SFM-129-T2-SM-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-129-T2-SM-D-A-K is a 58-position dual-row surface mount socket strip with 0.050" pitch, delivering high reliability with Tiger Eye beryllium copper contacts and gold plating for low-resistance mating. Supports dense board-to-board interconnects across -55°C to +125°C operating temperature. Available from FindMyChip with worldwide shipping for industrial and embedded applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 58
- Lifecycle
- ACTIVE
- Datasheet
- SFM-129-T2-SM-D-A-K Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 58-position dual-row socket at 0.050" (1.27 mm) pitch providing high pin-count interconnects in a compact surface mount footprint
- Tiger Eye beryllium copper contacts with gold over nickel plating ensure reliable signal integrity across thousands of mating cycles
- Rated for -55°C to +125°C operating temperature, suitable for industrial, telecom, and ruggedized embedded computing applications
Applications
SFM-129-T2-SM-D-A-K is designed for 58-signal board stacking in telecom line cards, FPGA expansion boards, and high-density embedded computing modules where 0.050" pitch reduces connector footprint by half compared to 0.100" alternatives. Its Tiger Eye contacts maintain reliable continuity in applications subject to vibration or thermal cycling, making it appropriate for industrial automation and military-grade electronics. The surface mount format integrates directly into standard SMT reflow assembly processes.
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 SFM-129-T2-SM-D-A-K compare to a 0.100" pitch socket for a 58-position board stacking application?
SFM-129-T2-SM-D-A-K at 0.050" pitch spans approximately 1.45" (36.8 mm) for its 29 positions per row, compared to about 2.9" for an equivalent 0.100" pitch socket. This 50% footprint reduction is significant on compact embedded boards where routing space around the connector is constrained, and the Tiger Eye contact design maintains the same mating reliability despite the smaller pin-to-pin spacing.
What temperature range does SFM-129-T2-SM-D-A-K support and what environments does this cover?
SFM-129-T2-SM-D-A-K operates from -55°C to +125°C, meeting both commercial and full industrial temperature specifications. This range covers factory automation equipment, outdoor telecom enclosures, avionics test systems, and ruggedized military electronics where ambient temperatures can swing from cold-soak conditions to high-heat operation without degrading contact performance across all 58 pins.
For a FPGA daughter-card design needing 58 signals, why would an engineer choose SFM-129-T2-SM-D-A-K?
SFM-129-T2-SM-D-A-K provides 58 positions in dual-row format at 0.050" pitch, accommodating FPGA I/O banks with multiple differential pairs, power, and ground in a single compact connector. The beryllium copper Tiger Eye contacts preserve signal integrity for high-speed signals, and the SMT format allows placement of decoupling capacitors very close to the connector footprint, minimizing stub lengths and impedance discontinuities.
Is SFM-129-T2-SM-D-A-K RoHS compliant and what are its contact plating materials?
SFM-129-T2-SM-D-A-K uses gold over nickel contact plating on beryllium copper contacts, with tin-over-nickel termination finish for the SMT solder tails. The connector is manufactured as a RoHS-compliant part, making it suitable for products sold in the EU and other markets requiring restriction of hazardous substances, including lead-free solder compatibility for standard reflow profiles up to 260°C peak.
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About SAMTEC
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