TFM-120-02-L-D-K-TR SAMTEC Connector (Other) In Stock
The TFM-120-02-L-D-K-TR is a 40-position dual-row male board connector from SAMTEC with a 0.050-inch (1.27 mm) pitch and tin-over-nickel contact finish. It features a rectangular contact pattern in a compact 1.125-inch body for high-density board-to-board and mezzanine interconnect applications. Supplied in tape-and-reel format for automated SMT assembly with worldwide in-stock availability.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- TFM-120-02-L-D-K-TR 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
- 40-position dual-row male configuration on 0.050-inch (1.27 mm) pitch delivers high signal density in a 1.125 × 0.235 inch PCB footprint for compact mezzanine board connections
- Tin-over-nickel contact finish provides excellent solderability and corrosion resistance for reliable SMT reflow assembly and long-term electrical stability
- Tape-and-reel (TR) packaging enables fully automated pick-and-place and reflow soldering for high-volume PCB production without manual handling
Applications
The TFM-120-02-L-D-K-TR is used in board-to-board mezzanine interconnects for industrial computing modules, embedded SBC carrier boards, and test and measurement daughter cards requiring a 0.050-inch pitch high-density male connector. Its 40 positions on a 1.125-inch body length accommodate mixed power and signal routing in a single compact header. The surface mount termination integrates directly into standard reflow processes for cost-effective automated assembly in both prototyping and production.
Specifications
| Reach Compliance Code | Compliant |
| Factory Lead Time | 2 Weeks, 6 Days |
| YTEOL | 9.4 |
| Body Breadth | 0.235inch |
| Body Depth | 0.22inch |
| Body Length | 1.125inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Resistance | 15mΩ |
| Contact Style | SQ PIN-SKT |
| Dielectric Withstanding Voltage | 750VAC V |
| Durability | 2500Cycles |
| 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) | 3.2A |
| Reference Standard | UL |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 40 |
| 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, Vietnam |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the contact pitch and body size of the TFM-120-02-L-D-K-TR?
The TFM-120-02-L-D-K-TR uses a 0.050-inch (1.27 mm) pitch with a connector body length of 1.125 inches (28.6 mm), breadth of 0.235 inches (5.97 mm), and depth of 0.22 inches (5.59 mm). The 40 male contacts are arranged in 2 rows of 20, providing a high-density interconnect in a footprint that fits standard 0.050-inch pitch mating sockets from SAMTEC's SFM and similar series.
What current rating do the TFM-120-02-L-D-K-TR contacts support and how can power pins be allocated?
SAMTEC TFM series contacts are rated at 1 A per pin at 30 V AC/DC. For a 5 V power rail requiring 3 A, three adjacent pins can be paralleled on both signal and ground rows, leaving the remaining 34 contacts available for high-speed digital signals, control lines, and differential pairs within the 40-pin body without compromising the connector's overall current capacity.
Which SAMTEC socket strip mates with the TFM-120-02-L-D-K-TR and what is the mated stack height?
The TFM-120-02-L-D-K-TR mates with SAMTEC SFM series socket strips sharing the 0.050-inch pitch dual-row pattern. When paired with an L2 (2 mm above board) SFM socket, the mated board-to-board stack height is approximately 4 mm to 5 mm, providing clearance for surface mount components between the two PCBs in a mezzanine assembly while maintaining a low overall system profile.
Is the TFM-120-02-L-D-K-TR compatible with standard 260°C SMT reflow profiles for lead-free assembly?
Yes, the TFM-120-02-L-D-K-TR's tin-over-nickel contact finish and thermoplastic housing are compatible with standard J-STD-020 SMT reflow profiles up to 260°C peak temperature. The tape-and-reel packaging ensures consistent component orientation during automated placement, and the nickel barrier under the tin plating prevents tin diffusion into the base metal during reflow, preserving contact integrity across multiple thermal cycles.
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