TSM-123-03-T-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-123-03-T-DH-A-K-TR is a 46-position dual-row surface-mount terminal strip with 0.100-inch pitch featuring tall T profile and keying for reliable board-to-board mating. It offers dual-height (DH) insulator configuration and ships tape-and-reel for automated SMT assembly. Available globally with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 46
- Lifecycle
- ACTIVE
- Datasheet
- TSM-123-03-T-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-123-03-T-DH-A-K-TR?
- 46-position dual-row layout at 0.100-inch (2.54 mm) pitch balances high contact count with robust solderability in a standard SMT footprint
- Dual-height (DH) insulator accommodates mixed component heights on mating boards, providing clearance flexibility in multi-PCB stack assemblies
- Keying (K suffix) prevents 180-degree mis-mate across all 46 positions, eliminating costly rework from incorrect connector orientation
What is TSM-123-03-T-DH-A-K-TR used for?
The TSM-123-03-T-DH-A-K-TR is designed for motherboard-to-daughter card interfaces in industrial controllers, test fixtures, and embedded single-board computers where a 46-position 0.100-inch pitch SMT header provides reliable mating. Its dual-height insulator accommodates capacitors or other tall components on the mating board, making it a practical choice for mixed-height PCB assemblies. Tape-and-reel delivery supports automated placement on high-throughput SMT lines with standard pick-and-place machines.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-123-03-T-DH-A-K-TR datasheet?
TSM-123-03-T-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-123-03-T-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many contacts and at what pitch does the TSM-123-03-T-DH-A-K-TR provide, and what connector span does this occupy?
The TSM-123-03-T-DH-A-K-TR provides 46 contacts in 2 rows at a 0.100-inch (2.54 mm) pitch, spanning approximately 1.15 inches of PCB edge. The 2.54 mm pitch is the industry-standard spacing, ensuring compatibility with a wide range of SAMTEC and third-party mating plugs available for prototyping and production.
What does the dual-height (DH) insulator option on TSM-123-03-T-DH-A-K-TR solve for stacked PCB designs?
The DH (dual-height) insulator on the TSM-123-03-T-DH-A-K-TR raises the mating interface above the PCB surface, providing a taller clearance gap — typically several millimeters — between the two stacked boards. This prevents interference with bypass capacitors, inductors, or other passive components that are taller than 2 mm on the lower board, allowing denser component placement without redesigning the mating board layout.
How does the keying feature (K suffix) in TSM-123-03-T-DH-A-K-TR prevent field failures during maintenance?
The K keying notch in the TSM-123-03-T-DH-A-K-TR insulator physically blocks the mating plug from seating in the wrong 180-degree orientation. In a system with multiple adjacent 46-pin headers, keying prevents a technician from accidentally reversing power and ground lines, which could damage components supplied by all 46 contact signals, reducing costly field repair incidents.
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