SFM-125-02-S-D-A-K SAMTEC Connector (Other) In Stock
SAMTEC SFM-125-02-S-D-A-K is a 50-position dual-row high-reliability socket strip with .050" pitch, gold-over-nickel contacts, and positioning pin in a surface-mount package. Body dimensions of 1.375" × 0.185" suit dense FPGA mezzanine and test-board interconnects. From $8.50 in stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- SFM-125-02-S-D-A-K Datasheet PDF
- Category
- Connector
- Price
- From $5.8062(MOQ 1)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SFM-125-02-S-D-A-K?
- 50-position dual-row .050" (1.27 mm) pitch SMT socket with 30 µin gold over 50 µin nickel contact finish for superior corrosion resistance and low contact resistance
- Integrated positioning pin ensures precise PCB alignment and prevents board-to-board misregistration during assembly and mating
- High-reliability construction with RoHS-compliant materials supports thousands of mating cycles in demanding aerospace, defense, and embedded computing applications
What is SFM-125-02-S-D-A-K used for?
The SFM-125-02-S-D-A-K is designed for board-to-board stacking applications in FPGA mezzanine cards, test and measurement daughter boards, and ruggedized embedded computing modules where a 50-position, .050" pitch SMT socket with precise positioning is required. Its gold-over-nickel contacts and high-reliability rating make it suitable for military, aerospace, and industrial designs where repeated mating cycles and environmental exposure are concerns.
What are the specifications of SFM-125-02-S-D-A-K?
| Factory Lead Time | 2 Weeks, 5 Days |
| YTEOL | 9.4 |
| Additional Feature | ROHS COMPLIANT |
| Board Mounting Option | POSITIONING PIN |
| Body Breadth | 0.145inch |
| Body Depth | 0.185inch |
| Body Length | 1.375inch |
| Body/Shell Style | SOCKET |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (30) OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | FEMALE |
| Contact Material | BERYLLIUM COPPER |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Durability | 10000Cycles |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insertion Force-Max | .695N |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 2.7432mm |
| Plating Thickness | 30u inch |
| Polarization Key | POLARIZED HOUSING |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 50 |
| UL Flammability Code | 94V-0 |
| Withdrawl Force-Min | .556N |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | Costa Rica, Vietnam |
Where can I find the SFM-125-02-S-D-A-K datasheet?
SFM-125-02-S-D-A-K Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for SFM-125-02-S-D-A-K?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact finish does SFM-125-02-S-D-A-K use, and how many mating cycles does it support?
The SFM-125-02-S-D-A-K uses 30 µin gold over 50 µin nickel contact finish on all 50 positions across its dual-row .050" pitch layout. This finish is rated for hundreds to thousands of mating cycles while maintaining contact resistance below specified limits, making it appropriate for test fixtures, removable daughter cards, and high-reliability embedded computing modules.
How does the positioning pin on SFM-125-02-S-D-A-K prevent assembly errors on dense .050" pitch PCBs?
The integral positioning pin on the SFM-125-02-S-D-A-K registers the connector body to a precision hole in the PCB, holding it within tight X-Y tolerances during solder reflow. On a 50-position dual-row .050" pitch socket where a 0.1 mm misalignment could shift contacts out of pad, this mechanical registration prevents cold joints and misaligned mating with the plug header.
Which FPGA mezzanine or FMC form-factor designs can use SFM-125-02-S-D-A-K as a board-to-board socket?
The SFM-125-02-S-D-A-K with its 50-position dual-row .050" pitch footprint and 1.375" body length is compatible with FPGA Mezzanine Card (FMC) and custom daughter-card designs that break out 50 of the available signals in a half-width configuration. Designers can pair it with Samtec TFM or SFM plug strips to create a 50-line high-speed or mixed-signal interface stack with sub-100 ps matched-length signal paths.
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About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $12.0095 | $12.01 |
| 16+ | $8.4331 | $134.93 |
| 25+ | $7.6864 | $192.16 |
| 50+ | $7.0305 | $351.52 |
| 100+ | $6.6371 | $663.71 |
| 250+ | $5.8062 | $1451.54 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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