TFM-140-12-L-D SAMTEC Connector (Other) In Stock
SAMTEC TFM-140-12-L-D is an 80-position dual-row 1.27 mm pitch through-hole male board connector featuring Tiger Eye contact technology and gold-over-nickel mating contacts. Shrouded body protects contacts during assembly and mating. RoHS compliant and stocked at authorized distributors worldwide.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 80
- Lifecycle
- ACTIVE
- Datasheet
- TFM-140-12-L-D 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
- Tiger Eye contact technology providing superior contact reliability and lower insertion force compared to standard stamped contacts
- 15 microinch gold over 50 microinch nickel mating contact finish ensuring low resistance below 20 milliohms across all 80 positions
- Shrouded body design protecting dual-row contacts and enabling guided mating to prevent misalignment during connector insertion
- ELP (Extended Life Pin) option extending mechanical durability for applications requiring frequent mating cycles
Applications
The TFM-140-12-L-D is used in high-reliability backplane systems, mezzanine card interfaces, and industrial computing modules requiring robust 1.27 mm pitch dual-row through-hole connectivity. Its Tiger Eye contact technology and gold-plated mating surfaces make it suitable for test and measurement equipment and defense electronics where low contact resistance across 80 pins must be maintained over extended service. The shrouded dual-row layout simplifies alignment in blind-mate connector applications.
Specifications
| Pbfree Code | Yes |
| YTEOL | 9.4 |
| Additional Feature | ELP; TIGER EYE, SHROUDED |
| Body Breadth | 0.225inch |
| Body Length | 2.125inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (15) OVER NICKEL (50) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | PHOSPHOR BRONZE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulator Color | BLACK |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.05inch |
| Mating Contact Row Spacing | 0.05inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | GUIDE SLOT |
| Mounting Option 2 | LOCKING |
| 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 | 1.27mm |
| Plating Thickness | 15u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 3.2A |
| Reference Standard | UL, CSA |
| 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 |
| Country of Origin | Malaysia, USA |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is Tiger Eye contact technology in the TFM-140-12-L-D, and how does it improve performance?
Tiger Eye is SAMTEC's proprietary contact beam geometry that provides a larger contact wiping area and lower insertion force compared to conventional stamped contacts. In the TFM-140-12-L-D, this technology ensures reliable electrical connection across all 80 positions with contact resistance typically below 20 milliohms, even after repeated mating cycles. The technology is especially valuable in high-vibration or frequent mating environments such as test fixtures and removable module interfaces.
What is the contact finish specification of the TFM-140-12-L-D and how does it affect longevity?
The TFM-140-12-L-D features 15 microinch gold plating over 50 microinch nickel on the mating contact surfaces, with tin over nickel on the termination side. The gold-over-nickel finish delivers stable contact resistance below 20 milliohms, resists oxidation at temperatures from -55°C to +125°C, and supports a minimum of 500 mating cycles. This dual-layer finish is standard in high-reliability connector applications including aerospace, defense, and industrial instrumentation.
Is the TFM-140-12-L-D compatible with SAMTEC SFM series socket strips for mezzanine board-to-board stacking?
Yes, the TFM-140-12-L-D mates with SAMTEC SFM series high-reliability socket strips that share the 1.27 mm (0.050 inch) dual-row pitch. The dual-row 80-position through-hole male header and its matching SFM socket create a board-to-board stacking interface suitable for mezzanine module designs, FPGA daughter cards, and piggyback boards. Stack heights are determined by the selected SFM mating receptacle, which is available in heights from 4 mm to over 20 mm.
When should engineers choose TFM-140-12-L-D over a surface mount alternative for board-to-board connections?
The TFM-140-12-L-D through-hole configuration is preferred when mechanical retention strength must exceed 10 N pull force, when the connector will experience significant vibration or shock per MIL-STD-810, or when the application requires reworkable joints for maintenance. Through-hole soldering provides greater board adhesion than SMT pads alone, making TFM-140-12-L-D the better choice for ruggedized 80-pin interface applications in military, aerospace, or heavy industrial environments compared to surface mount TFM variants.
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