TSM-127-04-STL-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-127-04-STL-DH-A-K-TR is a 54-position, 2.54mm (0.100") pitch dual-row surface-mount terminal strip with through-hole tails, designed for high-density PCB interconnect applications requiring stable mechanical attachment and reliable electrical performance.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 54
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 54-position dual-row layout at 2.54mm pitch delivers high contact density in compact surface-mount form factor
- Surface-mount with through-hole tails provides superior mechanical strength for board retention and vibration resistance
- Tape-and-reel (TR) packaging enables automated pick-and-place assembly for high-volume PCB production
- RoHS-compliant materials support lead-free manufacturing and global regulatory compliance
Applications
The SAMTEC TSM-127-04-STL-DH-A-K-TR is suited for high-density board-to-board and wire-to-board connections in telecommunications infrastructure, embedded computing modules, and test and measurement equipment. Its 54-position dual-row configuration supports complex signal routing in industrial automation controllers and data acquisition systems. Tape-and-reel packaging makes it compatible with automated SMT assembly lines, reducing placement cycle times in high-volume production environments.
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 many positions and rows does the TSM-127-04-STL-DH-A-K-TR have, and what is its pitch?
The SAMTEC TSM-127-04-STL-DH-A-K-TR is a 54-position, dual-row terminal strip with a 2.54mm (0.100") pitch. This configuration provides 27 contacts per row, enabling high-density signal routing while maintaining compatibility with standard 2.54mm grid PCB layouts common in industrial and computing applications.
Why does TSM-127-04-STL-DH-A-K-TR use a surface-mount with through-hole tail design instead of pure SMT?
The combined surface-mount body with through-hole tails on the TSM-127-04-STL-DH-A-K-TR delivers mechanical anchoring strength that pure SMT pads cannot match. Through-hole tails resist up to several Newtons of extraction force and provide stability against PCB flexing, vibration, and connector mating forces, making it suitable for rugged industrial and telecom environments operating from -55°C to +125°C.
For a high-volume production line, what packaging does the TSM-127-04-STL-DH-A-K-TR use to support automated assembly?
The -TR suffix indicates tape-and-reel packaging, allowing automated pick-and-place machines to place the 54-position connector at high speed with consistent orientation. Standard reel sizes typically carry 250 to 500 pieces per reel, reducing manual handling and improving throughput on SMT lines running at rates above 10,000 placements per hour.
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