TFC-140-02-FM-D-A SAMTEC Connector (Other) In Stock
The SAMTEC TFC-140-02-FM-D-A is an 80-position Tiger Eye dual-row terminal strip at 0.050" pitch with female-over-male contacts, 3µ" gold mating finish, and rectangular contact pattern for high-density board-to-board signal interconnection.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 80
- Lifecycle
- ACTIVE
- Datasheet
- TFC-140-02-FM-D-A 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
- 80-position dual-row rectangular contact array at 0.050" (1.27 mm) pitch achieves high signal density in a 2.125 inch body length
- 3µ" gold mating contacts over phosphor bronze deliver stable low-resistance connections across repeated mating cycles
- Cost-effective Tiger Eye design reduces connector procurement costs without sacrificing contact reliability in high-channel-count applications
Applications
The TFC-140-02-FM-D-A is designed for high-signal-count board-to-board and mezzanine card interconnect applications in data communications, industrial computing, and test and measurement systems. Its 80-position dual-row layout at 0.050" pitch and 2.125 inch body length enable dense signal routing between carrier and daughter boards. The gold mating contacts on phosphor bronze ensure reliable performance in applications with moderate mating cycle requirements.
Specifications
| YTEOL | 9.4 |
| Body Breadth | 0.225inch |
| Body Depth | 0.226inch |
| Body Length | 2.125inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (3) |
| Contact Finish Termination | Matte Tin (Sn) |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | SQ PIN-SKT |
| Dielectric Withstanding Voltage | 825VAC V |
| Filter Feature | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Style | STRAIGHT |
| 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 | 3.43mm |
| Plating Thickness | 3u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 2.9A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 80 |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the body dimensions of the TFC-140-02-FM-D-A and how do they affect PCB layout?
The TFC-140-02-FM-D-A has a body length of 2.125 inch, breadth of 0.225 inch, and depth of 0.226 inch. This elongated form factor accommodates 80 contact positions at 0.050" pitch in a dual-row rectangular pattern, requiring a 2.125 inch routing zone along one PCB edge while occupying minimal board depth, making it suitable for card-edge or inline board-to-board designs.
How does the 3µ" gold mating finish on the TFC-140-02-FM-D-A affect contact reliability over time?
The 3µ" gold mating finish on phosphor bronze contacts provides a hard, corrosion-resistant surface that maintains low contact resistance over repeated mating cycles. Compared to gold flash finishes of less than 1µ", the 3µ" deposit offers longer-lasting reliability in industrial environments with temperature cycling, humidity, or mild contamination, supporting reliable signal transmission across all 80 positions.
For which types of board-to-board applications is the 80-position TFC-140-02-FM-D-A best suited?
The TFC-140-02-FM-D-A is best suited for mezzanine module interconnects, FPGA daughter card interfaces, multi-channel data acquisition boards, and industrial I/O expansion modules where 80 signals must be transferred reliably between boards. Its 0.050" pitch allows routing these 80 positions within a 2.125 inch connector span, compared to over 4 inches for an equivalent 0.100" pitch connector.
How does the TFC-140-02-FM-D-A differ from keyed variants in the TFC series?
The TFC-140-02-FM-D-A lacks a keying feature, meaning it can mate with any compatible 80-position 0.050" header regardless of orientation markers. This suits applications with clear visual labeling or single-connector designs. When multiple identical connectors are used on the same PCB, engineers should consider the K-suffix keyed variant to prevent incorrect mating, which could swap signal groups across 80 channels and cause system faults.
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