TSM-120-04-TM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-120-04-TM-DH-A-K-TR is a 40-position, 0.100" (2.54 mm) pitch dual-row surface mount terminal strip with top-mount orientation. Gold-plated contacts and robust 4-wall housing deliver reliable signal integrity for dense SMT board interconnects. Stocked at authorized distributors with worldwide shipping options.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 40
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-120-04-TM-DH-A-K-TR?
- 40-position, 0.100" (2.54 mm) pitch top-mount SMT terminal strip optimized for low-profile dual-row board interconnect
- Gold-plated contact finish provides superior corrosion resistance and maintains contact resistance below 20 mΩ over extended service life
- 4-wall housing design shields solder joints from flux contamination and provides mechanical retention during 260°C reflow processes
What is TSM-120-04-TM-DH-A-K-TR used for?
The TSM-120-04-TM-DH-A-K-TR top-mount terminal strip is ideal for daughterboard-to-motherboard connections, backplane interfaces, and modular industrial control systems where 40 signals must be routed across a 0.100" pitch SMT interface. Its top-mount configuration enables low-profile stacking in space-constrained enclosures used in networking equipment, medical devices, and embedded computing platforms. The dual-row layout efficiently handles mixed signal and power lines within a compact PCB footprint.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-120-04-TM-DH-A-K-TR datasheet?
TSM-120-04-TM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-120-04-TM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the top-mount orientation of TSM-120-04-TM-DH-A-K-TR benefit compact PCB designs?
The top-mount (TM) orientation positions the mating interface perpendicular to the PCB surface, reducing overall stack height compared to right-angle alternatives and enabling board separations as small as 8.38 mm. This makes it suitable for slim industrial enclosures, embedded systems, and medical devices where vertical clearance is limited to under 15 mm.
What contact rating and plating does the TSM-120-04-TM-DH-A-K-TR provide for signal integrity?
The TSM-120-04-TM-DH-A-K-TR uses gold-plated (Au) contacts that maintain contact resistance below 20 mΩ, supporting signal frequencies up to several hundred MHz and current capacities typically up to 1 A per pin at standard 0.100" pitch SMT terminal strips from SAMTEC.
Is TSM-120-04-TM-DH-A-K-TR a drop-in alternative to TSM-120-04-H-DH-A-K-TR for the same PCB footprint?
No — the TM (top-mount) and H (horizontal/right-angle) variants differ in mating direction and PCB footprint. Both share the same 40-position, 0.100" (2.54 mm) dual-row pitch, but the TM version requires a top-entry mating connector while the H version mates horizontally, so PCB land patterns and housing heights differ by several millimeters.
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