TSM-109-03-TL-DH-P-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-109-03-TL-DH-P-TR is an 18-position, 2.54 mm pitch dual-row surface mount terminal strip with low-profile (TL) configuration and polarization peg for accurate board placement. Features gold-plated contacts and tape-and-reel packaging optimized for automated SMT assembly. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Datasheet
- TSM-109-03-TL-DH-P-TR Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 18-position dual-row (DH) layout on 2.54 mm (0.100 inch) pitch with low-profile (TL) design for reduced PCB stack height in space-constrained assemblies
- Polarization peg (P) ensures correct connector orientation during automated SMT placement, preventing rotational mis-alignment across all 18 positions
- Tape-and-reel (TR) packaging supports high-volume pick-and-place assembly with consistent feed and placement accuracy for SMT reflow processing
Applications
The TSM-109-03-TL-DH-P-TR is used in embedded computing modules, industrial sensor interfaces, and compact control electronics where an 18-pin dual-row surface mount terminal strip at 2.54 mm pitch is needed with precise board orientation. Its low-profile body and polarization peg improve assembly yield in high-density PCB designs by reducing connector height and preventing rotational placement errors. The tape-and-reel format enables seamless integration into automated manufacturing lines producing IoT devices, measurement instruments, and modular electronics.
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 does the polarization peg (P) on the TSM-109-03-TL-DH-P-TR improve SMT assembly yield?
The polarization peg (P) on the TSM-109-03-TL-DH-P-TR inserts into a corresponding hole in the PCB, mechanically constraining the connector to a single correct orientation across all 18 positions during automated pick-and-place and reflow soldering. This prevents 180-degree rotational placement errors that would cause all signal pins to be reversed, a fault mode that is difficult to detect visually and can result in circuit damage when the board is first powered.
What does the low-profile (TL) designation mean for the TSM-109-03-TL-DH-P-TR in stacked PCB designs?
The TL (low-profile) designation indicates that the TSM-109-03-TL-DH-P-TR has a reduced body height compared to standard TSM series connectors. This lower profile decreases the total PCB stack height when used in board-to-board or board-to-wire configurations, making it suitable for slim embedded modules, panel-mounted instruments, and compact IoT enclosures where maintaining less than a few millimeters of connector clearance is critical to fit within mechanical constraints.
How many total pins does the TSM-109-03-TL-DH-P-TR provide and how are they distributed between rows?
The TSM-109-03-TL-DH-P-TR provides 18 total positions distributed in a dual-row (DH) configuration, with 9 pins per row on a 2.54 mm (0.100 inch) pitch. This dual-row arrangement allows all 18 signals to be routed within a compact linear footprint, reducing the connector length compared to a single-row 18-position header while maintaining the standard 2.54 mm inter-pin spacing compatible with a wide range of mating connectors.
Which mating connectors are compatible with the TSM-109-03-TL-DH-P-TR for board-to-wire assemblies?
The TSM-109-03-TL-DH-P-TR mates with standard dual-row 2.54 mm pitch female crimp housings and IDC cable assemblies designed for 0.100 inch pitch headers. Compatible mating options include SAMTEC's SSM and IDSS series female housings accepting 22 AWG to 28 AWG wire, as well as industry-standard 18-pin IDC ribbon cable connectors. The dual-row 2.54 mm pitch is one of the most widely supported interface standards, ensuring broad mating connector availability from multiple manufacturers.
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