TSM-120-04-LM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-120-04-LM-DH-A-K-TR is a 40-position, 0.100" (2.54 mm) pitch surface mount terminal strip featuring a long-body (LM) dual-row (DH) configuration. Gold-plated contacts ensure reliable signal integrity. Available in tape-and-reel packaging for automated SMT assembly.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 40-position dual-row (DH) long-body (LM) SMT terminal strip with 2.54 mm pitch, supporting high pin-count board-to-board connections
- Gold-plated contacts ensuring low contact resistance and superior corrosion resistance for long service life
- Tape-and-reel (TR) packaging enabling automated pick-and-place assembly for high-volume PCB production
Applications
The TSM-120-04-LM-DH-A-K-TR is designed for board-to-board interconnect applications in industrial automation, embedded computing, and telecommunications equipment where a long-body 40-position 2.54 mm pitch SMT connector is needed. The dual-row configuration efficiently accommodates 40 signal channels in a compact surface mount footprint, making it suitable for data acquisition systems, motor drive boards, and backplane interface modules requiring dense connectivity.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the long-body (LM) variant of the TSM-120-04-LM-DH-A-K-TR differ from the standard body version?
The LM (long mount) designation indicates an extended insulator body height compared to the standard FM version, providing additional standoff clearance of approximately 1.5 mm above the PCB surface, which helps in applications requiring component clearance or improved mechanical retention across 40 positions.
What current and voltage ratings apply to the TSM-120-04-LM-DH-A-K-TR for signal and power connections?
SAMTEC TSM series connectors are typically rated for 3 A per contact and up to 250 V AC/DC, with gold-plated contacts providing contact resistance below 20 milliohms, making this 40-position dual-row strip suitable for both signal and moderate power distribution applications.
Which PCB assembly processes are compatible with this surface mount terminal strip?
The TSM-120-04-LM-DH-A-K-TR is compatible with standard SMT reflow soldering processes at temperatures up to 260°C (peak), and its tape-and-reel (TR) format supports automated pick-and-place placement, making it ideal for high-volume manufacturing lines producing 40-position dual-row connector assemblies.
Related Guides
ECMF02-4CMX8 Common-Mode Filter with ESD Protection: Selection Guide
Compare ECMF02-4CMX8 vs ECMF02-2AMX6, ECMF04-4HSM10, and other ST ECMF filters. Choose the right 4-channel common-mode filter with ESD protection for USB 2.0.
Jun 20, 2026
AD5204 Quad Digital Potentiometer Selection Guide (2026)
How to choose the right AD5204 quad digital potentiometer: compare 10kΩ vs 100kΩ variants, TSSOP vs SOIC packages, and SPI interface options for your design.
Jun 20, 2026
0402 10uF X5R Decoupling Design Guide for Compact Digital Rails
Application note for using CL05A106MP5NUNC-class 0402 10uF X5R MLCCs in compact digital rail decoupling designs.
Jun 19, 2026
How to Choose an 0805 10uF MLCC for Decoupling and Bulk Capacitance
Selection guide for choosing 0805 10uF MLCCs around CL21A106KOQNNNE, covering derating, dielectric, package, and sourcing checks.
Jun 19, 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.”