TFC-120-02-LM-D-A SAMTEC Connector (Other) In Stock
Samtec TFC-120-02-LM-D-A is a 40-position dual-row Tiger Eye male terminal strip at 0.050" (1.27 mm) pitch with 15 µin gold mating contacts on phosphor bronze and a nickel-barrier tin termination finish on a 1.125" body length. Designed for high-density fine-pitch board-to-board interconnects in embedded and industrial electronics. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Datasheet
- TFC-120-02-LM-D-A Datasheet PDF
- Category
- Connector
- Price
- From $1.9691(MOQ 19)
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What is TFC-120-02-LM-D-A used for?
The TFC-120-02-LM-D-A is designed for 40-pin parallel bus interconnects in FPGA peripheral headers, embedded SoC expansion cards, and industrial fieldbus interface modules where fine 0.050" pitch minimizes connector board area. Its 15 µin gold contacts support repeated mating in development and test environments, while the nickel-barrier tin solder tails meet lead-free manufacturing requirements for medical and industrial electronics production. The connector also serves motion controller daughtercard interfaces and communication module edge connectors in compact multi-board system designs.
What are the specifications of TFC-120-02-LM-D-A?
| YTEOL | 9.4 |
| Body Breadth | 0.225inch |
| Body Depth | 0.226inch |
| Body Length | 1.125inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | GOLD (15) |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| 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 | 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 |
Where can I find the TFC-120-02-LM-D-A datasheet?
TFC-120-02-LM-D-A Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFC-120-02-LM-D-A?
Compatible alternatives and drop-in replacements for TFC-120-02-LM-D-A:
Board Stacking Connector, 40 Contact(s), 2 Row(s), Male, Straight, 0.05 inch Pitch, Surface Mount Terminal, Locking, Black Insulator
Board Stacking Connector, 40 Contact(s), 2 Row(s), Male, Straight, 0.05 inch Pitch, Surface Mount Terminal, Locking, Black Insulator
Frequently Asked Questions
How does TFC-120-02-LM-D-A's 40-pin count compare to TFC-118-02-L-D-A and TFC-125-02-LM-D-A in the same TFC series?
TFC-120-02-LM-D-A sits between TFC-118-02-L-D-A (36 pins, 1.025" body) and TFC-125-02-LM-D-A (50 pins, 1.375" body) in the Samtec TFC series, offering 40 pins on a 1.125" body at the same 0.050" pitch. TFC-120-02-LM-D-A and TFC-125-02-LM-D-A share the nickel-barrier tin termination, while TFC-118-02-L-D-A uses plain matte tin, making the LM variants preferable for lead-free high-reliability production.
For a 32-bit embedded processor bus, how does TFC-120-02-LM-D-A fit the signal count requirement?
A 32-bit data bus with 8 address lines would require 40 pins — exactly matching TFC-120-02-LM-D-A's 40-position capacity. The dual-row 0.050" layout places 20 contacts per row on a 1.125" body, making it practical to route a complete 32-bit parallel interface plus control signals between two stacked PCBs in embedded processor modules without requiring a wider connector.
What assembly process is recommended for soldering TFC-120-02-LM-D-A to a PCB?
The nickel-barrier tin (Sn/Ni) solder tails of TFC-120-02-LM-D-A are compatible with both lead-free reflow and wave soldering. Standard SAC305 solder paste with a peak profile of 260°C applies for surface-mount reflow. For mixed-technology boards using wave solder, the nickel barrier prevents copper leaching from the phosphor bronze contact base, maintaining joint integrity on all 40 pins across production volumes.
Which industrial or test-fixture applications justify choosing TFC-120-02-LM-D-A over a lower-cost 0.100" header?
When the available connector zone on a PCB is under 30 mm and a 40-pin count is required, TFC-120-02-LM-D-A's 1.125" (28.6 mm) body at 0.050" pitch fits the space where a 0.100" pitch 40-pin dual-row header would need approximately 2.05" (52 mm). Test fixtures and FPGA mezzanine cards in ATE systems that are re-mated tens to hundreds of times also benefit from the 15 µin gold mating surface, which maintains reliable contact resistance below 50 mΩ over the connector's mating cycle life.
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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 |
|---|---|---|
| 19+ | $4.7100 | $89.49 |
| 100+ | $3.8300 | $383.00 |
| 500+ | $3.2700 | $1635.00 |
| 1000+ | $2.7324 | $2732.40 |
| 2500+ | $2.2719 | $5679.65 |
| 5000+ | $1.9690 | $9845.25 |
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