TFC-125-02-FM-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-125-02-FM-D-A is a dual-row 50-position Tiger Eye cost-effective terminal strip with 0.050" (1.27 mm) pitch, phosphor bronze male contacts with gold (3 µin) mating finish and tin-over-nickel termination, in a 1.375" body length. Available with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFC-125-02-FM-D-A Datasheet PDF
- Category
- Connector
- Price
- From $1.8718(MOQ 16)
- 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 TFC-125-02-FM-D-A?
- 50-position dual-row male terminal strip at 0.050" (1.27 mm) pitch with 1.375 inch body length for medium-high-density board-to-board connections
- Gold (3 µin) mating contact finish on phosphor bronze contacts providing corrosion resistance and consistent low contact resistance over many mating cycles
- Tin-over-nickel termination finish enabling reliable through-hole or SMT soldering in standard lead-free reflow and wave solder processes
What is TFC-125-02-FM-D-A used for?
The TFC-125-02-FM-D-A is used in board-to-board mezzanine assemblies, daughter card interconnects, and module expansion sockets requiring 50 dual-row contacts at 0.050" pitch with gold-plated mating interfaces. Industrial computing, test and measurement, and communication equipment designs specify this terminal strip when reliable multiple-mate connections and cost efficiency are simultaneously required. The phosphor bronze contact material and gold mating finish make it particularly suitable for environments where repeated connector mate/unmate cycles are expected during field service or testing.
What are the specifications of TFC-125-02-FM-D-A?
| YTEOL | 9.4 |
| Body Breadth | 0.225inch |
| Body Depth | 0.226inch |
| Body Length | 1.375inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (3) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | SQ PIN-SKT |
| Dielectric Withstanding Voltage | 825VAC V |
| Filter Feature | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| 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 | 3.43mm |
| Plating Thickness | 3u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2.9A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 50 |
| UL Flammability Code | 94V-0 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
| Country of Origin | France, Malaysia |
Where can I find the TFC-125-02-FM-D-A datasheet?
TFC-125-02-FM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-125-02-FM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact material and plating does the TFC-125-02-FM-D-A use, and how does this affect mating reliability?
The TFC-125-02-FM-D-A features phosphor bronze male contacts with a gold (3 µin) mating finish and tin-over-nickel termination. Phosphor bronze provides high spring force for reliable normal force at the contact interface, while the 3 µin gold plating resists tarnish and corrosion, ensuring stable low-resistance connections across the 50 positions even after repeated mate/unmate cycles in test equipment and field-service applications.
What PCB footprint dimensions does the TFC-125-02-FM-D-A occupy on a board layout?
The TFC-125-02-FM-D-A body measures 1.375 inches long, 0.225 inches wide, and 0.226 inches deep, accommodating 50 dual-row contacts at 0.050" (1.27 mm) pitch. This compact footprint allows designers to route 25 contacts per row within a 1.375 inch linear board length, making efficient use of PCB real estate in mezzanine and daughter card stack assemblies.
For which system designs is a 50-position dual-row 0.050" terminal strip like the TFC-125-02-FM-D-A the right choice?
A 50-position dual-row terminal strip at 0.050" pitch suits designs needing to carry combined 32-bit data buses, address lines, power, and ground signals across a single board-to-board connector. Typical applications include FPGA daughter cards, high-speed data acquisition modules, and industrial PLC expansion cards where routing efficiency matters and individual signal count falls between 40 and 50 connections.
How does the gold mating finish on the TFC-125-02-FM-D-A compare to tin-finished connectors for long-term contact performance?
Gold (3 µin) mating finish outperforms tin in connector longevity, especially in applications with more than 25 mating cycles or in humid environments. Gold does not oxidize, so contact resistance remains consistently below 20 milliohms across all 50 positions throughout the connector's rated life. Tin-finished contacts are adequate for permanent installations but can form tin oxide films that increase resistance over time in frequently mated connectors.
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About SAMTEC
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 16+ | $4.5600 | $72.96 |
| 100+ | $3.6300 | $363.00 |
| 500+ | $3.1000 | $1550.00 |
| 1000+ | $2.6433 | $2643.30 |
| 2500+ | $2.1545 | $5386.23 |
| 5000+ | $1.8718 | $9359.00 |
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