TFM-109-03-L-D-RA SAMTEC Connector (Other) In Stock
The TFM-109-03-L-D-RA is an 18-position dual-row right-angle Tiger Eye terminal strip from SAMTEC with 0.050 inch (1.27 mm) pitch and a longer (03) tail length for increased solder depth. It delivers high-reliability fine-pitch interconnection with right-angle board-edge mating in compact PCB assemblies. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- TFM-109-03-L-D-RA Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 18-position dual-row right-angle (RA) configuration at 0.050 inch (1.27 mm) pitch for fine-pitch horizontal board-edge interconnects
- 03-series extended tail length provides deeper solder penetration, improving pull-out strength compared to standard L-series tails
- Tiger Eye contact geometry ensures low and consistent contact resistance across repeated insertion and withdrawal cycles
Applications
The TFM-109-03-L-D-RA is used in board-edge and horizontally-mated PCB assemblies within telecommunications equipment, embedded modules, and test fixtures requiring fine-pitch 1.27 mm pitch dual-row connectivity. The right-angle tail orientation aligns the mating interface parallel to the PCB, enabling card-edge access in enclosed chassis designs with limited vertical clearance. The extended tail length suits applications with thicker PCBs or wave-soldering processes requiring enhanced mechanical retention.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What distinguishes the TFM-109-03-L-D-RA from the TFM-109-02-L-D-RA in terms of tail length and solder joint depth?
The TFM-109-03-L-D-RA uses a longer tail series (03 vs. 02), which provides approximately 0.5 mm to 1 mm more solder tail depth below the PCB surface compared to the standard 02 tail. This extended length increases solder fillet volume, improving mechanical pull-out resistance in applications using thicker 2.4 mm boards or selective wave-soldering processes.
For an 18-signal right-angle connector at 1.27 mm pitch, how does the TFM-109-03-L-D-RA footprint fit within a typical card-edge zone?
With 18 positions in a dual-row (2 x 9) layout at 0.050 inch (1.27 mm) pitch, the TFM-109-03-L-D-RA occupies roughly 11.4 mm of connector length. The right-angle body keeps the mating direction horizontal, requiring a card-edge clearance zone of less than 6 mm from the board edge, which fits within standard 10 mm edge exclusion zones used in compact chassis designs.
How does Tiger Eye contact technology in the TFM-109-03-L-D-RA contribute to reliability in test and measurement equipment subject to frequent connector cycling?
Tiger Eye contacts use a dual-point wiping action that sweeps contaminants from the mating surface on each insertion, maintaining contact resistance below 20 milliohms across hundreds of mate and unmate cycles. In test and measurement fixtures where connectors may be cycled daily, this self-cleaning mechanism extends service life compared to conventional single-wipe contacts by reducing oxide buildup on gold-plated surfaces.
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