TFC-135-02-LM-D-A SAMTEC Connector (Other) In Stock
SAMTEC TFC-135-02-LM-D-A is a 70-position dual-row Tiger Eye cost-effective male board connector with 0.050-inch pitch, phosphor bronze contacts with 15 µin gold mating finish and matte tin termination. The 1.875-inch body length supports high signal density board-to-board mezzanine stacking in communications and embedded computing systems.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 70
- Lifecycle
- ACTIVE
- Datasheet
- TFC-135-02-LM-D-A Datasheet PDF
- Category
- Connector
- Price
- From $4.5300(MOQ 250)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFC-135-02-LM-D-A?
- 70-position dual-row male board connector at 0.050" (1.27 mm) pitch for high-density mezzanine interconnect
- Phosphor bronze contacts with 15 µin gold mating finish provide low contact resistance and extended mating cycle life
- Matte tin termination is compatible with standard lead-free SMT reflow soldering up to 260 °C
- Cost-effective Tiger Eye terminal strip design reduces BOM cost while maintaining high-reliability contact performance
What is TFC-135-02-LM-D-A used for?
The TFC-135-02-LM-D-A is used in high-density board-to-board mezzanine stacking applications within communications line cards, FPGA development boards, and embedded computing modules. Its 70-position dual-row configuration at 0.050-inch pitch enables 35 signal pairs per row within a compact 1.875-inch body length. The 15 µin gold mating contacts ensure consistent signal integrity and low resistance across repeated mating operations in demanding industrial and commercial environments.
What are the specifications of TFC-135-02-LM-D-A?
| YTEOL | 9.4 |
| Body Breadth | 0.225inch |
| Body Depth | 0.226inch |
| Body Length | 1.875inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (15) |
| 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 | 15u 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 | 70 |
| 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 |
Where can I find the TFC-135-02-LM-D-A datasheet?
TFC-135-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-135-02-LM-D-A?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What contact material and plating does the TFC-135-02-LM-D-A use, and what mating life does it support?
The TFC-135-02-LM-D-A uses phosphor bronze contacts with a 15 µin (microinch) gold plating on the mating surface and matte tin on the termination. Phosphor bronze provides good spring characteristics that maintain contact force over mating cycles, and the gold plating ensures contact resistance remains below 20 mΩ for a typical service life exceeding 500 mating cycles in board-to-board applications.
How does the 70-position TFC-135-02-LM-D-A compare to a 52-position variant for communications backplane use?
The TFC-135-02-LM-D-A provides 70 positions versus 52 in smaller TFC variants, supporting 18 additional signal connections in a longer 1.875-inch body. For communications backplane designs requiring more than 50 signal lines at 0.050-inch pitch, the 70-position variant eliminates the need for a second connector, reducing PCB complexity and assembly cost while maintaining 15 µin gold contact quality across all 70 positions.
Is the TFC-135-02-LM-D-A suitable for automated SMT production, and what is its body length?
Yes. The TFC-135-02-LM-D-A has a body length of 1.875 inches and uses matte tin termination, both of which are compatible with standard automated SMT pick-and-place and lead-free reflow soldering up to 260 °C. Its 0.225-inch body breadth and 0.226-inch depth keep it within standard SMT component height profiles, supporting high-volume PCB assembly for commercial and industrial applications.
For a compact dual-board stack carrying 60 or more signals, why select the TFC-135-02-LM-D-A over wire harnesses?
The TFC-135-02-LM-D-A provides 70 signal positions in a rigid 1.875-inch board connector that eliminates cable routing, reduces EMI from unshielded wires, and supports signal frequencies well above 100 MHz with shorter, controlled-length trace connections. Compared to a wire harness carrying the same 70 signals, the TFC-135 reduces assembly time and maintains 0.050-inch pitch signal spacing that simplifies PCB trace impedance control for high-speed interfaces.
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About SAMTEC
SAMTEC is a leading electronic component manufacturer. FindMyChip sources SAMTEC ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $6.4200 | $1605.00 |
| 500+ | $5.9000 | $2950.00 |
| 1000+ | $4.5300 | $4530.00 |
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