HTSS-128-01-LM-DV SAMTEC Connector (Other) In Stock
The SAMTEC HTSS-128-01-LM-DV is a 56-position, 2.54 mm (0.100") pitch high-temperature shrouded terminal strip designed as a cable-mate connector. It features dual-row construction, locking shroud for secure mating, and is rated for elevated operating temperatures up to 105°C. Suitable for industrial cabling, test equipment, and high-density wire-harness terminations requiring reliable board-to-cable connectivity.
- Manufacturer
- SAMTEC
- Package
- Other
- Pin Count
- 56
- Lifecycle
- ACTIVE
- Datasheet
- HTSS-128-01-LM-DV Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 56-position dual-row layout on 2.54 mm (0.100 inch) pitch for high-density cable termination
- High-temperature shroud rated to 105°C ensures reliable performance in demanding thermal environments
- Locking shroud design prevents accidental disconnection in vibration-prone industrial applications
- Cable-mate configuration compatible with standard IDC and discrete-wire cable assemblies
Applications
The HTSS-128-01-LM-DV is used in industrial automation panels, test and measurement racks, and embedded computing backplanes requiring a high pin-count, mechanically secure board-to-cable interface at 2.54 mm pitch. Its shrouded body protects against mis-mating in crowded wiring environments. The high-temperature rating makes it a reliable choice for equipment operating near power electronics or in elevated ambient conditions.
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 many positions and what pitch does the HTSS-128-01-LM-DV support, and how does that affect cable assembly choices?
The HTSS-128-01-LM-DV provides 56 positions arranged on a 2.54 mm (0.100 inch) pitch in a dual-row shrouded format. This pitch is compatible with standard 28 AWG ribbon cables and IDC mass-termination tooling, making it straightforward to assemble 56-conductor flat cables without custom tooling or proprietary contacts.
What operating temperature range is the HTSS-128-01-LM-DV rated for, and which applications require that specification?
SAMTEC rates the HTSS series for operating temperatures up to 105°C continuous. This makes the connector appropriate for motor drive enclosures, power supply output harnesses, and industrial control cabinets where ambient temperatures regularly exceed the 85°C limit of standard commercial connectors, reducing the need for additional thermal management.
How does the shrouded design of the HTSS-128-01-LM-DV reduce field assembly errors compared to an unshrouded terminal strip?
The shroud physically keys the mating cable connector into a single correct orientation, preventing 180-degree mis-insertion that can destroy 56-pin harnesses or damage ICs on the target PCB. This is particularly valuable in field-service scenarios where technicians replace cables under time pressure without schematic references.
What is the current-carrying capacity per contact of the HTSS-128-01-LM-DV, and how should designers calculate total bundle derating?
SAMTEC HTSS series contacts are typically rated at 3 A per pin under free-air conditions at 25°C ambient. When all 56 contacts carry current simultaneously, thermal coupling within the housing requires derating to approximately 1 A per pin or less; designers should consult the SAMTEC HTSS datasheet's derating curves for the specific duty cycle and ambient temperature of their application.
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