TSM-103-01-LM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-103-01-LM-DH-A-K-TR is a 6-position, 2.54 mm pitch dual-row surface mount terminal strip with low-profile mounting, gold-plated contacts, and key polarization in tape-and-reel format. It provides reliable, polarized board-to-board or wire-to-board connections in space-constrained SMT designs. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6-position dual-row layout on 2.54 mm (0.100") pitch in a low-profile (LM) form factor for height-constrained PCB designs
- Key polarization (K) prevents incorrect mating across all 6 positions, ensuring error-free assembly in automated and field wiring
- Gold-plated (A) contacts deliver contact resistance below 20 milliohms and corrosion resistance for extended service life
- Tape-and-reel (TR) packaging enables automated SMT pick-and-place assembly at high production volumes with consistent placement accuracy
Applications
TSM-103-01-LM-DH-A-K-TR is ideal for compact IoT sensor modules, wearable device PCBs, and portable instrumentation where a low-profile 6-pin polarized dual-row connector must fit within tight height clearances of less than 5 mm above the PCB surface. Its key polarization makes it a reliable choice for field-swappable sensor interface boards in industrial monitoring systems where plug-in errors could damage downstream circuitry. The tape-and-reel format supports high-volume SMT production in consumer electronics and medical device manufacturing.
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 key polarization (K) on TSM-103-01-LM-DH-A-K-TR prevent connector miswiring in a 6-pin dual-row SMT header?
The key polarization (K) feature on TSM-103-01-LM-DH-A-K-TR incorporates an asymmetric keying element that physically prevents insertion of the mating connector in the wrong orientation. For a 6-position dual-row connector on a 2.54 mm pitch, reversing the connector would swap pin 1 with pin 6 and could short power rails operating at 3.3 V or 5 V directly to signal lines. The polarization ensures correct insertion on the first attempt, reducing field assembly errors and preventing potential circuit damage in IoT and industrial sensor applications.
What is the low-profile (LM) mounting height of TSM-103-01-LM-DH-A-K-TR, and which height-constrained applications benefit most?
TSM-103-01-LM-DH-A-K-TR uses the LM (low mounting) configuration of the SAMTEC TSM series, which reduces the mated connector height to well under 5 mm above the PCB surface compared to standard height TSM variants. This low profile is critical for wearable electronics, smart card interfaces, and compact handheld instruments where total PCB stack height must stay below 10 mm including all components. The 6-position dual-row layout on a 2.54 mm pitch provides enough pins for SPI (4 lines), I2C (2 lines), or UART plus power interfaces in a single minimal connector.
What gold plating specification do the contacts of TSM-103-01-LM-DH-A-K-TR carry, and how does this support long-term reliability in an IoT sensor module?
TSM-103-01-LM-DH-A-K-TR features gold-plated (A suffix) contacts, which provide a typical contact resistance below 20 milliohms and excellent resistance to oxidation at operating temperatures up to 85 degrees C. Gold plating is rated for at least 30 mate-unmate cycles under standard IEC test conditions, making this 6-pin connector suitable for removable sensor interface boards that are periodically replaced during field maintenance. The gold finish also ensures reliable low-voltage signal integrity at 1.8 V and 3.3 V logic levels that are common in IoT microcontroller designs.
How does TSM-103-01-LM-DH-A-K-TR in tape-and-reel format compare to a tube-packaged alternative for high-volume PCB assembly?
TSM-103-01-LM-DH-A-K-TR in TR (tape-and-reel) format feeds directly into standard SMT pick-and-place machines operating at placement rates exceeding 10,000 components per hour, eliminating the operator-fed loading required by tube-packaged connectors. Tape-and-reel also ensures consistent connector orientation and protects the 2.54 mm pitch contacts from damage during handling, reducing the defect rate in reflow soldering lines. For production runs exceeding 5,000 boards per month, TR packaging offers a lower total cost per assembly compared to manual-loaded tube alternatives.
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