TFC-127-02-L-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-127-02-L-D-A is a 54-position dual-row Tiger Eye cost-effective terminal strip on a 0.050" pitch with L low-profile mounting and A right-angle through-hole termination. Enables high-density vertical or edge signal routing in compact PCB assemblies. Available worldwide with fast delivery.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Datasheet
- TFC-127-02-L-D-A Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 54 positions in a dual-row layout on 0.050" (1.27 mm) pitch for high-density signal routing
- Tiger Eye bifurcated contact provides reliable, consistent wiping force across all 54 mating positions
- L low-profile mounting option reduces overall connector height for slim-profile board assemblies
- A right-angle through-hole termination offers robust mechanical anchoring to the PCB
- Cost-effective Tiger Eye design reduces BOM cost while maintaining SAMTEC reliability standards
Applications
The TFC-127-02-L-D-A is suited for FPGA daughter card interfaces, processor expansion headers, and high-density ribbon cable breakouts where 54 positions at 0.050" pitch deliver maximum signal density within a compact board footprint. The through-hole A termination provides strong mechanical retention for applications subject to cable pull forces, such as portable instruments and rack-mount embedded computers. Its low-profile L mounting style also benefits designs with strict height envelopes, including mezzanine module stacks and backplane daughter board assemblies.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TFC-127-02-L-D-A:
Board Connector, 54 Contact(s), 2 Row(s), Male, Straight, 0.05 inch Pitch, Surface Mount Terminal, Black Insulator
Frequently Asked Questions
How many signal positions does TFC-127-02-L-D-A provide and what pitch does it use?
The TFC-127-02-L-D-A provides 54 positions arranged in 2 rows on a 0.050" (1.27 mm) pitch. At this pitch, the dual-row contact field spans approximately 34 mm, enabling 54 independent signal connections in a footprint roughly half the length that an equivalent 0.100" pitch connector would require, which is critical for dense FPGA I/O breakout and processor expansion header applications.
For a portable instrument subject to cable pull stress, how does the through-hole termination of TFC-127-02-L-D-A improve mechanical reliability?
The A through-hole termination of TFC-127-02-L-D-A anchors each of the 54 pins through the PCB with solder fillets on both the component and solder sides, providing significantly greater pull-out resistance than a surface-mount termination that relies solely on pad adhesion. In portable instruments where cables are regularly connected and disconnected, the through-hole joints distribute mechanical stress across 54 pins and into the PCB laminate, reducing the risk of pad lifting or connector delamination under repeated plug-unplug cycling.
When should a designer choose TFC-127-02-L-D-A over a higher-pitch 54-pin connector for a mezzanine module stack?
For mezzanine module stacks where PCB area is at a premium, the 0.050" pitch of TFC-127-02-L-D-A reduces the connector footprint by approximately 75% compared to a 54-pin connector at 0.100" pitch in a single-row layout, or approximately 50% compared to a dual-row 0.100" pitch alternative. The low-profile L mounting style further reduces the stacking height, allowing tighter board-to-board spacing in multi-layer mezzanine assemblies. The Tiger Eye cost-effective contact design also keeps the unit price competitive with standard 0.100" pitch connectors.
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