TFC-138-02-F-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-138-02-F-D-A is a 76-position dual-row Tiger Eye male terminal strip at 0.050 inch pitch, featuring Gold (3 µin) mating contacts over phosphor bronze, matte tin termination, and a 2.025 inch body length for high-density board interconnection.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 76
- Lifecycle
- ACTIVE
- Datasheet
- TFC-138-02-F-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
- 76-position dual-row male terminal strip at 0.050 inch pitch enabling high signal density on a 2.025 inch body with rectangular contact pattern
- Phosphor bronze contacts with Gold (3 µin) mating finish providing reliable electrical performance and corrosion resistance across standard mating cycle requirements
- Matte Tin (Sn) termination finish simplifying soldering during PCB assembly while maintaining strong mechanical and electrical connection to the board
Applications
The TFC-138-02-F-D-A is designed for high-density board-to-board signal interconnect in data acquisition systems, embedded computing modules, and industrial automation equipment. Its 76-position dual-row layout at 0.050 inch pitch enables efficient multi-bus signal routing across daughtercard and backplane interfaces in space-constrained electronic assemblies.
Specifications
| YTEOL | 9.4 |
| Body Breadth | 0.225inch |
| Body Depth | 0.226inch |
| Body Length | 2.025inch |
| 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 | 76 |
| 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 contact materials and finishes does TFC-138-02-F-D-A use for mating and termination?
The TFC-138-02-F-D-A features phosphor bronze contacts with a Gold (3 µin) mating finish and Matte Tin (Sn) termination finish. The phosphor bronze base material provides good spring properties and mechanical durability, while the 3 µin gold mating surface ensures reliable low-resistance contact with the corresponding socket connector across typical mating cycle counts.
For a 76-signal parallel bus, how does TFC-138-02-F-D-A's dual-row layout reduce PCB area compared to single-row connectors?
A dual-row 0.050 inch pitch connector like the TFC-138-02-F-D-A fits 76 positions in a 2.025 inch body length by staggering contacts across 2 rows. A single-row alternative at the same pitch would require nearly double the connector length, approximately 3.8 inches, to accommodate the same signal count. This makes the dual-row format significantly more compact for large buses.
Which board-to-board applications benefit from specifying TFC-138-02-F-D-A over higher-cost gold-plated alternatives?
Applications requiring moderate mating cycle life, such as factory-configured backplane interconnects, industrial controller daughter cards, and embedded system prototyping, benefit from TFC-138-02-F-D-A's cost-effective 3 µin gold mating finish. The Tiger Eye design delivers reliable contact at lower cost than 15 µin or 30 µin gold alternatives, making it suitable where connectors are mated only a few dozen times over the product's service life.
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