TSM-109-04-S-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-109-04-S-DH-A-K-TR is an 18-position, 0.100" pitch dual-row surface mount terminal strip with key-lock polarization and tape-and-reel packaging, designed for secure high-density PCB-to-PCB interconnections.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- TSM-109-04-S-DH-A-K-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 18-position dual-row terminal strip at 0.100" (2.54 mm) pitch offering 9 contacts per row in a compact surface mount footprint
- Key-lock (K suffix) anti-mismating feature physically prevents incorrect connector orientation, protecting sensitive signal and power circuits during assembly and field servicing
- Tape-and-reel (TR) packaging enables high-volume automated pick-and-place assembly with standard SMT feeders
Applications
TSM-109-04-S-DH-A-K-TR is ideal for industrial control boards, embedded system modules, and test equipment where a reliable 18-pin 0.100" pitch terminal strip with polarization is needed for daughtercard or expansion module connections. The key-lock feature ensures correct mating even in dense multi-connector layouts, reducing assembly errors in 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
What is the significance of the 04 in TSM-109-04-S-DH-A-K-TR, and how does it affect the connector height?
The 04 in the part number designates the post height above the PCB surface, which in the SAMTEC TSM series typically corresponds to a 4.06 mm (0.160 inch) post length. This post height determines the mating engagement depth with a corresponding socket strip, making it important to select a matching socket with compatible stack height when designing board-to-board assemblies.
How many contacts does TSM-109-04-S-DH-A-K-TR provide, and in what row configuration?
TSM-109-04-S-DH-A-K-TR provides 18 total contacts arranged in a dual-row (DH) configuration of 9 contacts per row, spaced at 0.100" (2.54 mm) pitch. This 18-pin count is common in embedded system expansion interfaces, such as GPIO headers on microcontroller development boards, where 9 signals per row balance pin density with PCB routing ease.
Is TSM-109-04-S-DH-A-K-TR compatible with standard 0.100" socket strips from other manufacturers?
The TSM series uses an industry-standard 0.100" (2.54 mm) dual-row pitch, so the header posts are mechanically compatible with most standard 0.100" dual-row socket strips from SAMTEC and other major connector manufacturers. However, the key-lock (K) feature may only engage its full polarization function when paired with a matching K-coded SAMTEC socket, so verifying key compatibility is recommended before cross-brand pairing.
What procurement advantages does the tape-and-reel format of TSM-109-04-S-DH-A-K-TR offer over tray packaging?
Tape-and-reel (TR) packaging allows TSM-109-04-S-DH-A-K-TR to be loaded directly into standard 8 mm or 12 mm pitch pick-and-place feeders, reducing per-unit handling time in automated SMT lines. Compared to tray packaging, reels support longer uninterrupted production runs—typically 1000 to 3000 parts per reel—lowering changeover frequency and improving throughput in high-volume board assembly operations.
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