TFM-125-01-L-D-LC SAMTEC Connector (Other) In Stock
Samtec TFM-125-01-L-D-LC is a dual-row SMT receptacle board connector with 50-pin count, split board lock, and 15µin gold-over-nickel mating contacts, measuring 1.375 inches in body length for high-reliability board-to-board signal and power interconnects. It supports standard 0.05-inch pitch high-density layouts. Available in stock worldwide with fast shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- TFM-125-01-L-D-LC Datasheet PDF
- Category
- Connector
- Price
- From $3.1571(MOQ 16)
- 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 TFM-125-01-L-D-LC?
- Split board lock mechanical feature ensures positive PCB retention and prevents connector tipping or pull-out during mating in vibration-prone environments
- 15µin gold-over-nickel mating contact finish delivers low, stable contact resistance and extended insertion cycle life for repeated mate/unmate applications
- Dual-row receptacle body (1.375 inch × 0.225 inch) provides high conductor density in a compact SMT footprint for compact board-to-board assemblies
- RoHS compliant with tin-over-nickel PCB termination contacts and gold mating surface for environmental compliance and reliable solderability in reflow assembly
What is TFM-125-01-L-D-LC used for?
The Samtec TFM-125-01-L-D-LC dual-row SMT receptacle is designed for high-density board-to-board interconnects in industrial single-board computers, FPGA daughter cards, and communication module assemblies where a secure mechanical lock and high pin count are required. Its split board lock feature maintains reliable contact under vibration and mechanical handling, making it suitable for defense electronics, ruggedized instrumentation, and compact server blade connectors. The gold mating contacts support repeated connection cycles in field-serviceable modular systems.
What are the specifications of TFM-125-01-L-D-LC?
| YTEOL | 9.15 |
| Additional Feature | ROHS COMPLIANT |
| Board Mounting Option | SPLIT BOARD LOCK |
| Body Breadth | 0.225inch |
| Body Depth | 0.22inch |
| Body Length | 1.375inch |
| Body/Shell Style | RECEPTACLE |
| 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 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 |
| Mixed Contacts | NO |
| Mounting Option 1 | 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 | 10u inch |
| Polarization Key | POLARIZED HOUSING |
| Rated Current (Signal) | 5A |
| Reference Standard | UL, CSA |
| Terminal Pitch | 1.27mm |
| Termination Type | SOLDER |
| Total Number of Contacts | 50 |
| 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 |
Where can I find the TFM-125-01-L-D-LC datasheet?
TFM-125-01-L-D-LC Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-125-01-L-D-LC?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the split board lock on the TFM-125-01-L-D-LC improve mechanical reliability compared to standard SMT receptacles?
The split board lock on the TFM-125-01-L-D-LC engages the mating PCB edges to distribute pull-out forces across the board substrate rather than concentrating stress solely on the SMT solder joints. This prevents connector rocking or partial unmating under vibration loads — important in industrial backplane assemblies and ruggedized systems where PCB connectors experience continuous mechanical stress during operation.
What contact finish specification does the TFM-125-01-L-D-LC use and how does 15µin gold affect cycle life?
The TFM-125-01-L-D-LC uses 15 microinches (µin) of gold over 50µin of nickel on the mating contact surfaces. At 15µin gold thickness, the contacts maintain low and stable contact resistance — typically below 20 milliohms — for hundreds of mating cycles, making the connector suitable for field-serviceable module systems where the receptacle is mated and unmated during maintenance operations.
Which PCB assembly process is recommended for soldering the TFM-125-01-L-D-LC to a circuit board?
The TFM-125-01-L-D-LC uses tin-over-nickel termination contacts optimized for standard SMT reflow soldering. Engineers should apply solder paste to the PCB land pattern and reflow at standard lead-free profile peak temperatures around 245°C to 260°C. The split board lock pegs seat into the PCB before reflow to maintain connector alignment during the soldering process.
For a 50-position dual-row board-to-board interface, how does the TFM-125-01-L-D-LC body size compare to single-row alternatives?
The TFM-125-01-L-D-LC dual-row receptacle body measures 1.375 inches (approximately 34.9mm) long by 0.225 inches (5.7mm) wide for its 50-position layout, whereas a single-row 50-position connector at the same pitch would require roughly 62mm in length. The dual-row design reduces required PCB edge length by approximately 44%, freeing board space for other components in compact system designs.
Related Guides
STM32H753VIT6 High-Performance MCU Design Guide
Practical STM32H753VIT6 design guidance for power, clocks, memory, DMA, PCB layout, bring-up, and production recovery.
Aug 3, 2026
STM32H753ZIT6 Selection Guide for High-Performance Embedded Systems
Select the STM32H753ZIT6 by evaluating compute, memory, LQFP144 pinout, power, interfaces, security, and sourcing requirements.
Aug 3, 2026
ICL7660ACPAZ Negative Voltage Charge Pump Design Guide
Design a reliable ICL7660ACPAZ negative rail with capacitor equations, layout rules, startup checks, and practical troubleshooting.
Aug 2, 2026
C0402C103K3RACTU 10 nF MLCC Design Guide
Practical guidance for applying the C0402C103K3RACTU 10 nF, 25 V X7R MLCC in decoupling, filtering, timing, and EMI-control networks.
Aug 2, 2026
Why Buy from FindMyChip
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 |
|---|---|---|
| 16+ | $5.3513 | $85.62 |
| 50+ | $4.8900 | $244.50 |
| 100+ | $4.4700 | $447.00 |
| 500+ | $3.6879 | $1843.97 |
| 1000+ | $3.4347 | $3434.70 |
| 2000+ | $3.1571 | $6314.28 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
10214-6212PC
3M
Connector
1778573
Phoenix Contact
Connector
5227222-3
TE Connectivity
Connector
S4B-XH-SM4-TB(LF)(SN)
JST (JAPAN SOLDERLESS TERMINALS)
Connector
185226-2
TE Connectivity
Connector
0533980571
Molex
Connector
0360-0-15-01-34-27-10-0
Mill-Max
Connector
7850-0006PR
3M
Connector
AVB 1,5/2/12
BLOCK
Connector
N3764-5002RB
3M
Connector
N3627-6002RB
3M
Connector
N3627-5002RB
3M
Connector
N3440-6002RB
3M
Connector
929715-03-36-I
3M
Connector
929667-02-36-I
3M
Connector
929665-04-36-I
3M
Connector
929665-02-36-I
3M
Connector
929647-04-36-I
3M
Connector
929647-03-36-I
3M
Connector
7834-0006PR
3M
Connector
7826-0006PR
3M
Connector
7820-0006PR
3M
Connector
3440-5002
3M
Connector
3433-5302
3M
Connector