TFM-125-01-L-D-RA SAMTEC Connector (Other) In Stock
SAMTEC TFM-125-01-L-D-RA is a 50-position dual-row right-angle receptacle connector at 0.050" (1.27 mm) pitch, featuring gold-over-nickel contacts and RoHS-compliant construction for reliable PCB-to-PCB board connector applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFM-125-01-L-D-RA Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 50-position dual-row right-angle (RA) receptacle at 0.050" (1.27 mm) pitch enables horizontal board-to-board mating in height-constrained enclosures
- Gold-over-nickel contact finish provides corrosion resistance and stable contact resistance across 200+ mating cycles
- RoHS-compliant construction meets global environmental regulations for electronics manufacturing and export
- Board connector body dimensions of 1.375" length and 0.29" depth allow accurate footprint planning for dense PCB layouts
Applications
The TFM-125-01-L-D-RA right-angle receptacle is designed for applications where two PCBs must connect at a 90-degree angle, such as backplane-to-daughtercard assemblies in rack-mount equipment. It is commonly used in industrial control panels, embedded computing modules, and test instrumentation where the 1.27 mm pitch conserves board space while routing 50 signals. The right-angle orientation lowers the overall assembly height and facilitates front-panel or edge-facing connector access in enclosed systems.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 10Weeks |
| YTEOL | 9.15 |
| Additional Feature | ROHS COMPLIANT |
| Body Breadth | 0.225inch |
| Body Depth | 0.29inch |
| Body Length | 1.375inch |
| Body/Shell Style | RECEPTACLE |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD OVER NICKEL |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| 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 Option 1 | LOCKING |
| Mounting Style | RIGHT ANGLE |
| 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 | 1.27mm |
| Plating Thickness | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 5A |
| Reference Standard | UL, CSA |
| Terminal Pitch | 1.27mm |
| Termination Type | SOLDER |
| 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 | Malaysia, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the RA suffix indicate about the TFM-125-01-L-D-RA mounting orientation and how does it affect PCB design?
The RA suffix designates a right-angle mounting orientation, meaning the mating face of the connector is perpendicular to the PCB surface. This allows two boards to connect at 90 degrees, reducing vertical stack height compared to vertical-mount alternatives. The 0.050" (1.27 mm) pitch right-angle footprint has a body depth of 0.29 inches, which must be accounted for in PCB edge clearance design to maintain a minimum 8 mm board-edge keep-out zone.
What is the contact finish specification of TFM-125-01-L-D-RA and why does it matter for signal integrity?
The TFM-125-01-L-D-RA uses gold-over-nickel contact finish on the mating interface. Gold plating, typically 30 µin minimum, provides a noble metal surface that resists oxidation and maintains contact resistance below 20 mΩ over the rated 200+ mating cycles. Nickel underplating adds hardness and acts as a diffusion barrier, preserving the gold layer life in environments with temperatures up to 85°C and humidity up to 85% RH.
How many signal positions does TFM-125-01-L-D-RA provide and how is the pin numbering arranged?
The TFM-125-01-L-D-RA provides 50 positions arranged in 2 rows of 25 contacts each at a 1.27 mm pitch. Pins are numbered in a standard dual-row sequence across the 1.375-inch body length, enabling straightforward PCB schematic symbol and footprint generation. The 50-pin count supports routing of up to 25 differential pairs or 50 single-ended signals for I/O-intensive embedded processor or FPGA interface designs.
Is the TFM-125-01-L-D-RA RoHS compliant and what is the typical lead time for procurement?
Yes, the TFM-125-01-L-D-RA is fully RoHS compliant, as indicated by its RoHS marking and lead-free solder compatibility. The factory lead time is listed at 10 weeks for standard orders, so procurement planning should account for this when designing new hardware. Smaller quantities may be available from authorized distributors with shorter lead times, and Samtec also offers consignment and scheduled delivery programs for production volumes requiring consistent 50-position right-angle receptacle supply.
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