TFC-125-02-LM-D-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TFC-125-02-LM-D-A-K-TR is a 50-position, 0.050" pitch Tiger Eye cost-effective board stacking terminal strip in a dual-row male configuration. Features a peg board-mounting option, locking mechanism, and 1.375" body length for compact high-density mezzanine interconnects. Available in stock worldwide with competitive pricing.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFC-125-02-LM-D-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 50-position dual-row 0.050" pitch Tiger Eye board stacking connector achieves ultra-high signal density in a 1.375-inch body
- Locking (-K) retention feature prevents accidental unmating under mechanical vibration in demanding industrial environments
- Cost-effective Tiger Eye contact design delivers reliable low-resistance connections at reduced component cost versus premium alternatives
Applications
The TFC-125-02-LM-D-A-K-TR is suited for high-density mezzanine board stacking in embedded computing, FPGA expansion cards, and compact instrumentation where 50 signals must be routed through a single 0.050" pitch dual-row connector. Its peg mounting and locking design ensure mechanical stability on carrier boards used in avionics, medical imaging, and industrial motion control platforms requiring reliable high-pin-count daughtercard interconnects.
Specifications
| YTEOL | 8.75 |
| Board Mounting Option | PEG |
| Body Breadth | 0.225inch |
| Body Depth | 0.226inch |
| Body Length | 1.375inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| Filter Feature | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| 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 |
| Rated Current (Signal) | 3.1A |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the 0.050" pitch of TFC-125-02-LM-D-A-K-TR enable denser mezzanine designs compared to 0.100" pitch connectors?
At 0.050" (1.27 mm) pitch, the TFC-125-02-LM-D-A-K-TR fits 50 positions in a 1.375-inch body — roughly half the board length that a comparable 50-position 0.100" pitch connector would require. This halved pitch is critical for compact mezzanine modules in FPGA daughtercards and embedded computing stacks where PCB length is tightly constrained.
Which board stacking applications benefit most from the locking mechanism on TFC-125-02-LM-D-A-K-TR?
The -K locking feature is most valuable in mobile, airborne, or vibrating-platform applications — such as UAV avionics, railway control modules, and industrial CNC controllers — where a 50-position 0.050" pitch mezzanine connector must remain reliably mated despite continuous mechanical shock. The lock prevents the fine-pitch contacts from micro-sliding apart, which would degrade signal integrity on high-speed digital lines.
What cost advantage does the Tiger Eye design of TFC-125-02-LM-D-A-K-TR offer for high-volume board stacking procurement?
SAMTEC's Tiger Eye contact geometry reduces material use compared to traditional turned-pin socket contacts while maintaining reliable normal force across 50 positions. For high-volume production of mezzanine boards requiring a 0.050" pitch 50-position dual-row connector, this cost-effective design can reduce per-unit connector spend by a meaningful margin versus premium alternatives, without sacrificing the mating cycle reliability needed for long-service industrial equipment.
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