HTSS-125-01-TM-DV SAMTEC Connector (Other) In Stock
The SAMTEC HTSS-125-01-TM-DV is a 50-position, 0.100-inch pitch high-temperature shrouded terminal strip with dual-row male square-pin contacts and matte tin finish, measuring 2.65 × 0.365 × 0.4 inches. It is designed as a board-to-cable mate for industrial and embedded systems that demand reliable signal connections in thermally challenging environments.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 50
- Lifecycle
- ACTIVE
- Datasheet
- HTSS-125-01-TM-DV Datasheet PDF
- Category
- Connector
- Temp Range
- -55.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 50-position dual-row layout on 0.100 inch (2.54 mm) pitch consolidates 50 signals into a single 2.65 inch long polarized connector, reducing header count on dense industrial PCBs
- Matte tin (Sn) over nickel (Ni) contact finish on square pins provides robust solderability and low contact resistance for reliable signal integrity in wire-to-board assemblies
- High-temperature thermoplastic housing withstands reflow soldering peaks near 260°C and sustained service temperatures, making it suitable for industrial control boards with limited airflow cooling
Applications
The HTSS-125-01-TM-DV is frequently used on industrial PLC backplanes and motor controller boards where 50 I/O, encoder, or power signals must be reliably routed to a field-wiring cable harness via a single keyed connector. Its robust square-pin contact and shrouded polarized housing also suit automated test equipment (ATE) fixtures that need repeatable, high-reliability wire-to-board connections during continuous production testing cycles. The 0.100-inch standard pitch further simplifies cable assembly sourcing, as it mates with a wide range of off-the-shelf IDC and discrete-wire cable connectors.
Specifications
| YTEOL | 9.1 |
| Body Breadth | 0.365inch |
| Body Depth | 0.4inch |
| Body Length | 2.65inch |
| Connector Type | BOARD CONNECTOR |
| Contact Finish Mating | MATTE TIN |
| Contact Finish Termination | Matte Tin (Sn) - with Nickel (Ni) barrier |
| Contact Gender | MALE |
| Contact Pattern | RECTANGULAR |
| Contact Style | SQ PIN-SKT |
| DIN Conformance | NO |
| Dielectric Withstanding Voltage | 1414VAC V |
| Filter Feature | NO |
| IEC Conformance | NO |
| Insulation Resistance | 5000000000Ω |
| Insulator Color | NATURAL |
| Insulator Material | LIQUID CRYSTAL POLYMER |
| JESD-609 Code | e3 |
| MIL Conformance | NO |
| Mating Contact Pitch | 0.1inch |
| Mating Contact Row Spacing | 0.1inch |
| Mating Information | MULTIPLE MATING PARTS AVAILABLE |
| Mixed Contacts | NO |
| Mounting Option 1 | LOCKING |
| Mounting Style | STRAIGHT |
| Mounting Type | BOARD |
| Number Of Connectors | ONE |
| Number Of PCB Rows | 2 |
| Number of Rows Loaded | 2 |
| Option | GENERAL PURPOSE |
| PCB Contact Pattern | RECTANGULAR |
| PCB Contact Row Spacing | 6.86mm |
| Polarization Key | POLARIZATION NOTCH |
| Rated Current (Signal) | 3A |
| Reference Standard | UL |
| Terminal Pitch | 2.54mm |
| Termination Type | SURFACE MOUNT |
| Total Number of Contacts | 50 |
| UL Flammability Code | 94V-0 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8536.69.40.40 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the physical dimensions of the HTSS-125-01-TM-DV and how do they influence PCB layout planning?
The HTSS-125-01-TM-DV body measures 2.65 inches long × 0.365 inches wide × 0.4 inches deep (approximately 67.3 mm × 9.3 mm × 10.2 mm). On a PCB, designers must reserve a clearance zone of at least 67.3 mm along the connector's long axis plus additional space for the mating cable to exit, which typically dictates placing the connector near a board edge to avoid obstructing adjacent components.
How does the matte tin over nickel contact finish affect the long-term reliability of the HTSS-125-01-TM-DV in industrial environments?
Matte tin (Sn) over a nickel (Ni) barrier provides a solderable, corrosion-resistant surface that maintains low contact resistance over thousands of mating cycles. The nickel barrier prevents tin diffusion into the brass contact substrate, extending the useful life of each of the 50 pin-socket contact pairs. In humid or mildly corrosive industrial environments, this finish outperforms bare copper contacts and is compatible with standard Sn-Ag-Cu (SAC305) lead-free solder alloys used in modern PCB assembly.
Which cable connector families mate with the HTSS-125-01-TM-DV for a complete 50-circuit wire-to-board assembly?
The HTSS-125-01-TM-DV mates with SAMTEC's IDSS and ISDM discrete-wire cable assemblies, as well as standard IDC (insulation-displacement connector) ribbon cable assemblies on 0.100 inch (2.54 mm) pitch. These mating options support 26–28 AWG wire and are rated at up to 1 A per contact at 125 V AC/DC, giving system integrators a complete 50-circuit interconnect path without custom tooling or non-standard cable assemblies.
How does the shrouded, polarized design of the HTSS-125-01-TM-DV reduce field assembly errors compared to open-pin strip headers?
The polarized shroud physically blocks insertion of the mating cable connector in any orientation other than the correct one, preventing the 180-degree reversal that would cross-connect power and signal pins across all 50 circuits simultaneously. In industrial field environments where technicians may service equipment under poor lighting or time pressure, this mechanical keying feature eliminates a common and potentially destructive wiring error without relying on operator training or color-coded cables.
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