TSM-109-03-SM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-109-03-SM-DH-A-K-TR is an 18-position dual-row surface mount terminal strip with 0.100" (2.54 mm) pitch and surface mount with optional through-hole configuration. Gold-plated contacts are rated for 3A per pin and operate from -55°C to +125°C. Available from authorized distributors with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 18
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-109-03-SM-DH-A-K-TR?
- 18-position dual-row terminal strip at 0.100" (2.54 mm) pitch provides compact signal distribution in standard grid footprints
- Surface mount (SM) with optional dual-hole (DH) variant enables both SMT and through-hole soldering flexibility on the same footprint
- Gold-plated contacts rated at 3A per pin for reliable signal and low-power distribution in mixed-signal PCB designs
- Operating temperature range of -55°C to +125°C suits commercial, industrial, and extended-temperature applications
What is TSM-109-03-SM-DH-A-K-TR used for?
The TSM-109-03-SM-DH-A-K-TR is used in compact PCB designs requiring 18-pin dual-row signal connections such as microcontroller interface headers, sensor breakout boards, and development kit expansion connectors. The dual-hole surface mount configuration allows secure soldering with both reflow and wave soldering processes, accommodating mixed assembly workflows in industrial prototyping and low-to-medium volume production. Its 0.100" pitch aligns with standard mating sockets and jumper headers widely available in the electronics market.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-109-03-SM-DH-A-K-TR datasheet?
TSM-109-03-SM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-109-03-SM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What does the SM-DH suffix mean for TSM-109-03-SM-DH-A-K-TR assembly options?
SM indicates a surface mount solder tail, and DH (dual hole) means the package also includes through-hole posts that pass through the PCB. This dual configuration allows engineers to solder the connector either via standard SMT reflow (using the SM pads) or through-hole wave soldering (using the DH vias), giving assembly flexibility for boards processed on mixed SMT and through-hole production lines.
How much current can the 18-pin TSM-109-03-SM-DH-A-K-TR carry per pin, and what is its temperature range?
Each pin on the TSM-109-03-SM-DH-A-K-TR is rated at 3A of current capacity. The connector operates across a temperature range of -55°C to +125°C, making it suitable for both commercial-grade development boards and industrial embedded systems that see elevated ambient temperatures in enclosed enclosures or during extended duty cycles.
For a microcontroller development board, what signal types can be routed through the 18 positions of TSM-109-03-SM-DH-A-K-TR?
At 3A per pin and 0.100" pitch, the 18-position TSM-109-03-SM-DH-A-K-TR can simultaneously carry GPIO signals, SPI or I2C bus lines, analog reference voltages, UART TX/RX, and up to 3A of 3.3V or 5V power per pin. This makes it suitable as a general-purpose expansion header on MCU boards, combining digital control lines, analog signals, and power distribution within a single 18-pin footprint.
When is the TSM-109-03-SM-DH-A-K-TR preferable to a lower pin-count header, and how does the tape-and-reel packaging support production?
An 18-position connector consolidates what would otherwise require three separate 6-pin headers, reducing PCB real estate and solder joint count while maintaining 0.100" standard pitch compatibility. The TR (tape-and-reel) suffix confirms automated feeder compatibility, allowing pick-and-place machines to place the connector at rates exceeding 1000 components per hour with ±0.05 mm placement accuracy for consistent, defect-free solder joints in production runs.
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