TSM-127-03-STL-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-127-03-STL-DH-A-K-TR is a 54-position, triple-row, 2.54 mm (0.100 inch) pitch surface mount terminal strip in tape-and-reel packaging with dual-height contacts and locking key alignment feature. Designed for high-density board-to-board and backplane interconnect, it delivers 162 total contacts for industrial control, embedded computing, and expansion bus applications.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-127-03-STL-DH-A-K-TR?
- 54-position triple-row layout at 2.54 mm (0.100 inch) pitch providing 162 total contacts for high-density interconnect
- Dual-height (DH) contacts for compatibility with multiple mating connector stack heights
- Keyed (K) alignment feature prevents incorrect mating connector orientation during assembly
- Tape-and-reel (TR) packaging supports automated high-volume SMT pick-and-place production
- STL contact style with locking feature for mechanical retention in vibration-prone environments
What is TSM-127-03-STL-DH-A-K-TR used for?
The TSM-127-03-STL-DH-A-K-TR is used in high-density backplane connectors, industrial expansion bus interfaces, and embedded computing module sockets where 162 contacts across 54 triple-row positions at 2.54 mm pitch provide comprehensive signal and power routing. Its keyed alignment prevents reversed mating in field-installation scenarios, making it well-suited for modular industrial controllers, rack-mounted computing systems, and VME or custom backplane designs. The tape-and-reel format enables seamless integration into high-volume automated SMT assembly lines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-127-03-STL-DH-A-K-TR datasheet?
TSM-127-03-STL-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-127-03-STL-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many total contacts does the TSM-127-03-STL-DH-A-K-TR provide across its three rows, and what is the connector body length?
The TSM-127-03-STL-DH-A-K-TR provides 162 total contacts in a triple-row, 54-position layout at 2.54 mm (0.100 inch) pitch. The connector body spans approximately 68 mm in length, making it suitable for backplane and expansion bus PCBs that require a high contact count in a standard-pitch triple-row footprint.
What does the keyed (K) alignment feature of the TSM-127-03-STL-DH-A-K-TR prevent during connector mating?
The keyed (K) designation indicates a polarization or keying feature that physically prevents the mating connector from being inserted in the wrong orientation. This is critical in field-serviceable equipment and industrial panels where a reversed 162-pin connection across 3 rows could damage circuits or signal buses operating at 3.3 V, 5 V, or higher power rails.
Why is tape-and-reel packaging important for the TSM-127-03-STL-DH-A-K-TR in SMT production environments?
The tape-and-reel (TR) suffix means the TSM-127-03-STL-DH-A-K-TR is packaged for automated SMT pick-and-place equipment, enabling precise placement of a 162-contact connector at production throughput rates exceeding thousands of units per hour. This eliminates manual loading errors and supports RoHS-compliant lead-free reflow soldering at peak temperatures up to 260°C.
In which industrial and embedded applications is a triple-row 2.54 mm pitch terminal strip like this preferred over dual-row alternatives?
Triple-row 2.54 mm pitch terminal strips like the TSM-127-03-STL-DH-A-K-TR are chosen when designs need more than 100 contacts while keeping the connector length under 75 mm. They appear in VME backplane expansion cards, industrial PLC bus interfaces, and multi-channel data acquisition systems where routing 162 signals across 3 rows avoids the longer PCB footprints required by dual-row alternatives at the same pitch.
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