TFM-139-32-H-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-139-32-H-D-A-P-TR is a high-reliability Tiger Eye dual-row terminal strip connector with 0.050 inch pitch and 78 pins, designed for dense fine-pitch board-to-board interconnect. It features horizontal orientation, press-fit termination, and tape-and-reel packaging for automated assembly. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFM-139-32-H-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-139-32-H-D-A-P-TR?
- Tiger Eye contact system at 0.050 inch (1.27 mm) pitch provides high-reliability wiping contact action, ensuring stable electrical connection through repeated mating cycles in demanding environments
- Dual-row 78-pin layout with horizontal press-fit termination enables dense, low-profile board-to-board interconnect without soldering, reducing assembly time and thermal stress on PCBs
- Tape-and-reel (TR) packaging and -A-P (polarized) keying option support automated pick-and-place assembly with error-proof orientation for high-volume production
What is TFM-139-32-H-D-A-P-TR used for?
The TFM-139-32-H-D-A-P-TR is engineered for high-density board-to-board and mezzanine interconnect in high-reliability applications such as aerospace, defense electronics, and advanced computing modules. Its Tiger Eye contact system and 0.050 inch pitch accommodate 78 signals in a compact dual-row footprint suitable for FPGA mezzanine cards, backplane interfaces, and ruggedized embedded systems. The press-fit horizontal termination enables tool-free PCB assembly and supports field-replacement or reconfiguration of module stacks.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-139-32-H-D-A-P-TR datasheet?
TFM-139-32-H-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-139-32-H-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact pitch and pin count does TFM-139-32-H-D-A-P-TR provide, and how does that compare to 0.100 inch pitch alternatives?
The TFM-139-32-H-D-A-P-TR uses a 0.050 inch (1.27 mm) pitch dual-row layout with 78 pins total, delivering twice the contact density of a standard 0.100 inch pitch connector in the same board length. This makes it suitable for signal-intensive interfaces where routing space is a constraint, such as FPGA mezzanine cards or high-speed memory bus connections.
How does the Tiger Eye contact system in TFM-139-32-H-D-A-P-TR improve connection reliability over standard bifurcated contacts?
The Tiger Eye contact design uses a wiping action during mating that removes surface oxides and contaminants from the mating pin, maintaining low contact resistance even after hundreds of mating cycles. This is particularly important in aerospace and defense applications where connectors may be exposed to vibration, temperature extremes ranging from -55°C to +125°C, and infrequent but critical mating events.
When is the polarized keying option (-A-P suffix) in TFM-139-32-H-D-A-P-TR essential for system assembly?
The -A-P polarized keying prevents incorrect orientation of the 78-pin connector during board assembly or field installation, eliminating the risk of reversed-polarity damage on signal lines carrying logic levels from 1.8 V to 3.3 V. This is especially critical in dual-row high-density connectors where visual pin-1 identification is difficult and a 180-degree reversal error would short or misroute dozens of signals simultaneously.
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