TSM-125-01-SM-DH-A-K-TR SAMTEC Connector (Other) In Stock
SAMTEC TSM-125-01-SM-DH-A-K-TR is a 50-position surface mount terminal strip with 0.100" (2.54 mm) pitch in a dual-row configuration, featuring gold-plated contacts and tape-and-reel packaging for automated SMT assembly. It carries up to 3 A per contact and supports high-density board-to-board or board-to-cable interconnect. Available from stock with worldwide shipping.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TSM-125-01-SM-DH-A-K-TR?
- 50-position dual-row layout at 0.100" (2.54 mm) pitch provides a widely compatible footprint for legacy and modern PCB designs
- Gold-plated contacts rated at 3 A deliver reliable low-resistance connections across thousands of mating cycles in industrial and telecom applications
- Surface mount termination with tape-and-reel (TR) packaging enables automated pick-and-place assembly in high-volume SMT production lines
- Dual-height (DH) housing option accommodates taller mating connectors and provides shrouded alignment to prevent mis-mating during cable or board connection
What is TSM-125-01-SM-DH-A-K-TR used for?
The TSM-125-01-SM-DH-A-K-TR is used in board-to-board and board-to-cable signal routing applications in industrial automation, test equipment, and communications hardware where a robust 0.100" pitch 50-position surface mount interface is required. Its dual-row high-profile (DH) shrouded housing makes it well suited for backplane-style daughter-card sockets and panel-cable connections where guided mating is needed to prevent pin damage during field installation. The tape-and-reel format supports efficient automated assembly in high-volume production runs of server I/O boards and rack-mounted instruments.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the TSM-125-01-SM-DH-A-K-TR datasheet?
TSM-125-01-SM-DH-A-K-TR Datasheet DownloadOfficial datasheet from SAMTEC
What are equivalent replacements for TSM-125-01-SM-DH-A-K-TR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the position count and pitch of TSM-125-01-SM-DH-A-K-TR, and which legacy PCB systems is it compatible with?
The TSM-125-01-SM-DH-A-K-TR provides 50 positions arranged in a dual-row layout at 0.100" (2.54 mm) pitch, yielding 25 positions per row. The 0.100" pitch is the most widely adopted standard in PCB interconnect history, making this connector footprint directly compatible with thousands of legacy backplane, development board, and industrial I/O designs dating back to the 1980s through today's embedded computing platforms.
What does the DH (dual-height) suffix mean for TSM-125-01-SM-DH-A-K-TR, and when is this housing style preferred?
The DH (dual-height) suffix on TSM-125-01-SM-DH-A-K-TR denotes a taller shrouded housing profile, typically approximately 8 mm to 10 mm above the PCB surface, compared to a standard single-height housing of 4 mm to 5 mm. The taller shroud is preferred when mating with ribbon cable IDC connectors, box headers, or daughter-card modules that require additional clearance for the mating connector body and strain-relief boot, common in industrial panel wiring and server board daughtercard assemblies.
For a 50-signal board interconnect design, why would TSM-125-01-SM-DH-A-K-TR be chosen over a through-hole dual-row header?
The TSM-125-01-SM-DH-A-K-TR's surface mount termination eliminates the need for 50 through-holes per connector, reducing PCB drilling cost by approximately 30 to 50 cents per board on high-layer-count designs where via drilling is expensive. Surface mount also allows the connector to be placed on the bottom side of the PCB without reworking the assembly process, and the 3 A per contact rating matches the current capacity of equivalent through-hole 0.100" headers used in comparable designs.
How does ordering TSM-125-01-SM-DH-A-K-TR in tape-and-reel affect minimum order quantities and placement quality?
Tape-and-reel (TR) packaging for TSM-125-01-SM-DH-A-K-TR typically requires a minimum order quantity of 500 to 1000 pieces depending on the distributor, compared to cut-tape quantities as low as 1 piece. In exchange, TR format enables nozzle-fed pick-and-place machines to place the 50-position connector to within ±0.05 mm positional accuracy at rates of 3000 to 5000 placements per hour, dramatically improving throughput and reducing solder-bridge rework compared to manual or tray-based placement.
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