TFM-125-02-L-D-LC SAMTEC Connector (Other) In Stock
SAMTEC TFM-125-02-L-D-LC is a 50-position dual-row Tiger Eye surface mount terminal strip with 0.050" (1.27 mm) pitch for high-density board stacking interconnection. Features split board lock and tin-over-nickel contact finish for reliable vertical SMT mounting. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFM-125-02-L-D-LC 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
- 50-position dual-row configuration on 0.050" (1.27 mm) pitch delivers high-density board stacking in a 1.425" body length
- SAMTEC Tiger Eye contact technology provides enhanced normal force for reliable low-resistance mating in repeated-cycle applications
- Split board lock and SMT vertical mounting ensure mechanical stability on the PCB during and after reflow soldering
Applications
The TFM-125-02-L-D-LC is designed for high-density board stacking and mezzanine interconnect applications in embedded computing modules, FPGA carrier boards, and telecom line cards where 50 signals must be routed through a compact vertical SMT interface. Tiger Eye contact technology maintains reliable electrical continuity across multiple mating cycles, making it suitable for modular systems requiring frequent daughter card swaps. The split board lock feature secures the connector mechanically before and during reflow, simplifying automated PCB assembly.
Specifications
| Factory Lead Time | 2 Weeks, 6 Days |
| YTEOL | 8.75 |
| Additional Feature | E.L.P., TIGER EYE |
| Board Mounting Option | SPLIT BOARD LOCK |
| Body Breadth | 0.225inch |
| Body Depth | 0.22inch |
| Body Length | 1.425inch |
| Connector Type | BOARD STACKING CONNECTOR |
| Contact Finish Mating | NOT SPECIFIED |
| Contact Finish Termination | Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Material | NOT SPECIFIED |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Filter Feature | NO |
| IEC Conformance | NO |
| 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 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 | 3.429mm |
| Rated Current (Signal) | 3.2A |
| Terminal Pitch | 1.27mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 50 |
| 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
How many positions and what pitch does the TFM-125-02-L-D-LC provide for board stacking designs?
The TFM-125-02-L-D-LC provides 50 positions arranged in a dual-row layout at a 0.050" (1.27 mm) pitch. The 1.425" body length accommodates all 50 contacts, making it suitable for high-density FPGA daughter card interfaces and embedded computing bus interconnects that require more than 32 signals per connector.
What advantage does SAMTEC Tiger Eye contact technology provide compared to standard SMT connectors?
Tiger Eye contacts use a stamped eye-of-the-needle or enhanced beam geometry that delivers higher normal force than conventional SMT spring contacts, maintaining contact resistance below specified limits even after 100 or more mating cycles. This makes the TFM-125-02-L-D-LC a reliable choice for modular telecom blades and test fixtures where connectors are routinely mated and unmated.
Does the TFM-125-02-L-D-LC require any special PCB footprint considerations for its split board lock?
Yes. The split board lock on TFM-125-02-L-D-LC requires dedicated mechanical lock pads on the PCB land pattern, typically 0.225" x 0.22" per the body breadth and depth dimensions. These pads provide pull strength during mating and prevent connector lift-off during reflow; designers should reference SAMTEC's application-specific recommended land pattern document before layout.
How does TFM-125-02-L-D-LC compare to a 0.1" pitch alternative for the same 50-signal interface?
A 0.1" (2.54 mm) pitch 50-position dual-row connector would span roughly 2.85" body length, while the TFM-125-02-L-D-LC achieves the same 50 positions in only 1.425" at 0.050" pitch. This roughly 50% reduction in connector length frees significant board real estate on dense 6-layer or 8-layer PCBs designed for 19" rack-mount blade servers.
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