TFM-139-12-FM-D-A-P-TR SAMTEC Connector (Other) In Stock
The TFM-139-12-FM-D-A-P-TR is a SAMTEC Tiger Eye high-reliability dual-row terminal strip with 0.050-inch (1.27 mm) pitch and 78 total pins in a flush-mount (FM) configuration. It delivers reliable high-density PCB-to-PCB signal connectivity in demanding environments. Available in tape-and-reel format with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFM-139-12-FM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-139-12-FM-D-A-P-TR?
- Flush-mount (FM) termination style for low-profile PCB integration where connector height above the board must be minimized
- 0.050 inch (1.27 mm) pitch dual-row layout providing 78 pins within a compact, space-efficient connector body
- Tiger Eye high-reliability contact system ensuring consistent electrical performance across thousands of mating cycles
- Tape-and-reel (TR) packaging enabling automated SMT pick-and-place assembly for volume production efficiency
What is TFM-139-12-FM-D-A-P-TR used for?
The TFM-139-12-FM-D-A-P-TR is used in space-constrained PCB assemblies in defense, aerospace, and industrial electronics where a flush-mount dual-row connector with 78 pins at 0.050 inch pitch is required. Its flush-mount design minimizes the connector's profile above the PCB surface, enabling tighter board stacking in multi-layer assemblies. The high pin count at fine pitch makes it ideal for data-dense interconnects such as FPGA I/O expansion boards and high-channel-count sensor interfaces.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-139-12-FM-D-A-P-TR datasheet?
TFM-139-12-FM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-139-12-FM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the flush-mount (FM) designation mean for the TFM-139-12-FM-D-A-P-TR's PCB integration?
The flush-mount (FM) designation means that the TFM-139-12-FM-D-A-P-TR sits as close to the PCB surface as possible, minimizing the height profile above the board to less than 1 mm above the soldered pad area. This is critical in stacked PCB assemblies where board-to-board clearance may be only 2 mm to 5 mm, and a standard elevated connector body would prevent proper board stacking.
How many pins does the TFM-139-12-FM-D-A-P-TR have, and what signal density does that provide?
The TFM-139-12-FM-D-A-P-TR has 78 total pins arranged in 2 rows of 39 contacts at a 0.050 inch (1.27 mm) pitch. This allows routing of 78 individual signals through a connector body that spans less than 50 mm in length, achieving a signal density of approximately 1.56 pins per millimeter that is essential in FPGA expansion, high-channel sensor, and compact backplane designs.
Is the TFM-139-12-FM-D-A-P-TR designed for automated assembly, and what packaging format does it come in?
Yes, the TFM-139-12-FM-D-A-P-TR is supplied in tape-and-reel (TR) format, which is fully compatible with automated SMT pick-and-place equipment. The reel format ensures consistent feeder orientation during high-speed placement of the 78-pin fine-pitch connector body, enabling accurate positioning during lead-free reflow soldering at peak temperatures up to 260°C in volume production runs.
In which high-reliability applications is the TFM-139-12-FM-D-A-P-TR most commonly deployed?
The TFM-139-12-FM-D-A-P-TR is most commonly deployed in defense avionics, satellite systems, and harsh-environment industrial controllers where board connectors must withstand vibration, shock, and thermal cycling from -55°C to +125°C without degrading contact resistance. The Tiger Eye contact geometry maintains reliable electrical continuity across 78 pins through thousands of mating cycles, making it a preferred choice for mission-critical signal routing in rugged electronics.
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