TFM-139-01-LM-D-A-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TFM-139-01-LM-D-A-P-TR is a 78-position high-reliability Tiger Eye dual-row surface mount terminal strip at 0.050 inch pitch, low-profile horizontal mating, tape-and-reel packaged, with gold flash contacts for automated high-volume PCB assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 78
- Lifecycle
- ACTIVE
- Datasheet
- TFM-139-01-LM-D-A-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TFM-139-01-LM-D-A-P-TR?
- 78-position dual-row layout at 0.050 inch (1.27 mm) pitch with low-profile horizontal mating (LM suffix) minimizes connector stack height for thin-form-factor PCB designs
- Tape-and-reel (TR) packaging enables high-speed automated pick-and-place SMT assembly at production rates exceeding 10,000 placements per hour without manual handling
- Tiger Eye gold flash over nickel contacts provide reliable low-resistance mating engagement across the rated operating temperature range
What is TFM-139-01-LM-D-A-P-TR used for?
The TFM-139-01-LM-D-A-P-TR suits high-density board-to-cable and mezzanine card interconnect in portable medical devices, compact industrial computers, and wearable electronics where 78 signals at 0.050 inch pitch must exit the PCB with minimal vertical clearance. Its low-profile horizontal mating orientation routes mating connectors along the PCB surface, keeping cable bundles below the height of adjacent SMT components. The tape-and-reel format supports continuous automated SMT production runs in high-volume consumer and industrial electronics manufacturing.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TFM-139-01-LM-D-A-P-TR datasheet?
TFM-139-01-LM-D-A-P-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TFM-139-01-LM-D-A-P-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the low-profile horizontal mating orientation of TFM-139-01-LM-D-A-P-TR reduce connector stack height compared to vertical mating variants?
The LM (low-profile mating) designation routes the mating connector horizontally along the PCB surface rather than perpendicular to it, reducing the combined stack height of the connector and mated cable assembly to approximately 3 to 5 mm above the PCB versus 8 to 12 mm for a vertical mating 0.050 inch pitch connector. This makes TFM-139-01-LM-D-A-P-TR the preferred choice for portable medical devices and industrial handhelds with chassis depths under 10 mm carrying 78 signal lines.
Can TFM-139-01-LM-D-A-P-TR be used in a continuous automated production run, and what throughput does tape-and-reel packaging enable?
Yes, the -TR tape-and-reel packaging is specifically designed for automated SMT pick-and-place machines that can place the 78-position 0.050 inch pitch connector at rates of 10,000 or more per hour without operator intervention. Continuous reels eliminate the frequent tray reloading required for bulk-packaged connectors, significantly reducing changeover downtime on high-volume production lines for consumer electronics and industrial PCB assemblies.
When should a PCB designer select TFM-139-01-LM-D-A-P-TR over TFM-130-01-SM-D-A-P-TR for a wearable device interconnect?
Choose TFM-139-01-LM-D-A-P-TR over TFM-130-01-SM-D-A-P-TR when the wearable design requires 78 positions instead of 60 and when the mating cable must exit horizontally with a stack height under 5 mm above the PCB. The additional 18 positions at 0.050 inch pitch add only 0.9 mm of extra connector body length, while the low-profile horizontal mating prevents the connector-cable assembly from protruding through a thin wearable housing that may be only 8 mm deep.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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.
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