TFC-125-02-LM-D-A SAMTEC Connector (Other) In Stock
Samtec TFC-125-02-LM-D-A is a 50-position dual-row Tiger Eye male terminal strip at 0.050" (1.27 mm) pitch with 15 µin gold mating contacts on phosphor bronze and a nickel-barrier tin termination finish. Designed for high-density board-to-board and board-to-cable interconnects in compact embedded electronics. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFC-125-02-LM-D-A Datasheet PDF
- Category
- Connector
- Price
- From $2.3595(MOQ 16)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What is TFC-125-02-LM-D-A used for?
The TFC-125-02-LM-D-A is suited for wide parallel bus interconnects in FPGA mezzanine boards, SoC expansion headers, and multi-board embedded computing stacks requiring 50 or more signal pins at fine 0.050" pitch. Its nickel-barrier tin solder tails integrate into lead-free PCB assembly lines for industrial automation controllers and medical device mainboards where long-term solder joint reliability is mandatory. The 15 µin gold mating surface also suits test fixture jigs and development platforms where boards are swapped frequently during prototyping and validation.
What are the specifications of TFC-125-02-LM-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 (15) |
| 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 | 15u 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 |
Where can I find the TFC-125-02-LM-D-A datasheet?
TFC-125-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-125-02-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why does TFC-125-02-LM-D-A use a nickel barrier under the tin termination finish on its solder tails?
The nickel (Ni) barrier layer between the phosphor bronze contact base and the outer tin (Sn) finish on TFC-125-02-LM-D-A solder tails prevents copper migration into the tin, which reduces the risk of tin whisker growth over time. This is particularly important in lead-free solder environments where pure tin deposits can develop whiskers that cause short circuits, especially in high-reliability industrial and medical PCB assemblies.
For a 50-signal parallel FPGA interface, how much board length does TFC-125-02-LM-D-A require?
The TFC-125-02-LM-D-A body is 1.375 inches (approximately 34.9 mm) long for 50 positions in a dual-row 0.050" pitch configuration. This is roughly half the footprint of a 0.100" pitch header carrying 50 signals, freeing significant PCB area on FPGA expansion boards and SoC daughter cards where connector placement competes with BGA device routing.
How does TFC-125-02-LM-D-A compare to TFC-118-02-L-D-A when a design needs more than 36 pins?
TFC-125-02-LM-D-A adds 14 more positions (50 vs 36 pins) and extends the body length from 1.025" to 1.375" while maintaining the same 0.050" pitch, dual-row layout, and 15 µin gold mating contact specification. The key differentiator is the nickel-barrier tin termination on TFC-125-02-LM-D-A versus plain matte tin on TFC-118-02-L-D-A, offering better solder joint durability for high-reliability production designs.
What types of embedded computing interfaces benefit from TFC-125-02-LM-D-A's 50-pin fine-pitch configuration?
Interfaces such as 32-bit or 16-bit memory buses with address and control lines, camera parallel sensor ports (8-bit to 16-bit data plus synchronization signals), and PCI Express x4 debug headers benefit from the 50-pin capacity of TFC-125-02-LM-D-A. In FPGA development boards, the connector can route a full 48-bit I/O bank plus 2 power pins within the 1.375" body length at the standard 0.050" pitch.
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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 |
|---|---|---|
| 16+ | $4.9956 | $79.93 |
| 50+ | $4.5700 | $228.50 |
| 100+ | $3.9000 | $390.00 |
| 500+ | $3.1542 | $1577.11 |
| 1000+ | $2.7285 | $2728.45 |
| 2000+ | $2.3595 | $4719.04 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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