TSM-126-03-SM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-126-03-SM-DH-A-K-TR is a 52-position, 0.100" (2.54 mm) pitch dual-row surface mount terminal strip connector with gold-plated contacts. Designed for high-density SMT board-to-board interconnects with tape-and-reel packaging for automated assembly. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 52
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 52 positions in dual-row 0.100" (2.54 mm) pitch SMT layout for high-density board interconnects
- Gold-plated contacts (-K option) ensure minimal contact resistance and long operational life
- Surface mount termination compatible with standard SMT reflow soldering at up to 260°C
- Tape-and-reel (-TR) packaging enables automated pick-and-place assembly for high-volume production
Applications
The TSM-126-03-SM-DH-A-K-TR is ideal for high-density backplane connectors, daughter card interfaces, and data acquisition modules requiring 52 signal connections in a compact 0.100" pitch footprint. Its surface mount design and gold contacts make it well-suited for telecommunications equipment, test instrumentation, and embedded computing boards. The tape-and-reel packaging supports automated assembly lines in volume manufacturing 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 does the TSM-126-03-SM-DH-A-K-TR provide and how are they arranged?
The TSM-126-03-SM-DH-A-K-TR provides 52 total positions arranged in a dual-row (DH) configuration with 26 contacts per row at 0.100" (2.54 mm) pitch. This high-density layout makes it suitable for applications requiring 52 signal or power connections in a compact SMT footprint.
What contact plating does the TSM-126-03-SM-DH-A-K-TR use and why does it matter for signal integrity?
The -K suffix indicates gold-plated contacts, which provide contact resistance below 20 mΩ and excellent corrosion resistance over extended service life. Gold plating ensures stable signal integrity for low-level analog signals and high-speed digital interfaces across 52 positions, making it suitable for precision instrumentation and communications equipment.
Which assembly processes are compatible with the TSM-126-03-SM-DH-A-K-TR surface mount terminal strip?
The TSM-126-03-SM-DH-A-K-TR is designed for surface mount reflow soldering processes, compatible with standard solder paste application and reflow ovens operating at peak temperatures up to 260°C. The tape-and-reel (-TR) packaging supports automated pick-and-place machines, enabling consistent placement accuracy across all 52 positions in high-volume production.
When should a designer choose the 52-position TSM-126-03-SM-DH-A-K-TR over a lower-count connector?
When a design requires 52 or more signal connections between PCBs at 2.54 mm pitch, the TSM-126-03-SM-DH-A-K-TR eliminates the need for multiple smaller connectors, reducing BOM count and assembly complexity. It is particularly advantageous in backplane and daughter card designs where consolidated connector count saves routing space and lowers total interconnect cost per signal.
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