
Ultra-High-Density Heavy Duty Connector HDC-HDD Series
The HDD series pushes the contact density to the extreme, achieving the solution with the highest number of cores in the current heavy duty connector within the same housing volume. The contact pitch can be reduced to 1.5mm or even smaller, with a single insert reached 64, 144 pins or more, while still maintaining signal / low-voltage transmission below 10A. To ensure the precise mating under the high-density contact arrangement, the HDD series is equipped with reinforced guide pin and a multi-key misinsertion coding system. It's mainly used in large-scale CNC system, semiconductor manufacturing equipment, automatic test benches and high-complexity equipment that requires hundreds of thousands of signals.
HDC-HDD-024-MC
Base: H6B-BK-1L, H6B-CCT-1L, H6B-CCTH-1L, H6B-SF-1L-CV, H6B-SFH-1L-CV









HDC-HDD-042-FC
Base: H10B-BK-2L, H10B-CCT-2L, H10B-CCTH-2L, H10B-SF-2L, H10B-SFH-2L









HDC-HDD-072-MC
Base: H16B-BK-2L, H16B-CCT-2L, H16B-CCTH-2L, H16B-SF-2L, H16B-SFH-2L









HDC-HDD-108-FC
Base: H24B-BK-2L, H24B-CCT-2L, H24B-CCTH-2L, H24B-SF-2L, H24B-SFH-2L



















| Parameter | Specification |
|---|---|
| High Density Inserts | |
| Number of Contacts | 24, 42, 72, 108, 144, 216 (+ PE) |
| Rated Current | 10 A |
| Rated Voltage | 250 V |
| Rated Impulse Voltage | 4 kV |
| UL/CSA Rated Voltage | 600 V |
| Pollution Degree | 3 |
| Insulation Resistance | ≥ 10^10 Ω |
| Mechanical & Material | |
| Insert Material | Polycarbonate (PC) |
| Flammability | UL 94 V-0 |
| Mating Cycles | ≥ 500 cycles |
| Temperature Range | -40 °C to +125 °C |
| Contact Specifications | |
| Contact Material | Copper Alloy (Silver Plated) |
| Contact Resistance | ≤ 3 mΩ |
| Wiring Method | Crimp Terminal |
| Wire Gauge | 0.14 - 2.5 mm² (26 - 14 AWG) |
| Tightening Torque | 7.5 Nm (Housing) |
| Housing Compatibility | H6B, H10B, H16B, H24B, H32B, H48B |
Ultra-high density heavy-duty connector HDC-HDD series: industrial complex signal transmission
The HDC-HDD series of ultra-high-density heavy-duty connectors is more than just a simple multi-pin interface. It is a signal transmission system that has been precisely engineered. By using a high-density arrangement of Crimp Contacts, this series allows for pin density far exceeding that of conventional inserts in standard heavy-duty housings.
Semiconductor Manufacturing Equipment
The semiconductor industry’s requirements for precision are almost harsh. Lithography, etching, and wafer processing systems require thousands of synchronous signals to drive vacuum systems, robotic arms, and thermal sensors.
The ultra-high density heavy-duty connector HDC-HDD series provides the necessary signal integrity for these clean room environments. Its ultra-high density significantly reduces the space occupied by the control cabinet, and the cold crimping point with low contact resistance ensures the stability of weak data signal transmission, which is crucial to the lithography accuracy.
Large-scale CNC System
The modern multi-axis CNC machining center requires seamless communication between the central controller and each drive unit, sensor and tool changer. The HDD series simplifies this process by integrating power and signals into a single robust interface.
CNC manufacturers can achieve a more flexible modular design using the ultra-high density heavy-duty connector HDC-HDD series. Reinforced Guide Pins is particularly critical here, which can resist the vibration caused by high-speed machining and the loss caused by frequent maintenance to ensure long-term connection reliability.
Automatic Test Benches / ATE
Automatic test equipment usually needs to process hundreds of thousands of cyclic signals to verify the performance of complex electronic products. The HDD series has become the first choice for ATE designers because of its extremely high Mating Cycles and Multi-key Coding System. The system allows rapid replacement of test modules without worrying about misconnection, which greatly improves the test efficiency in high-yield production environments.
High Complexity Devices and Industrial Internet of Things (IIoT)
For equipment that needs to process ‘hundreds of thousands of signals’ – such as large scientific instruments or smart factory data hubs – the ultra-high density heavy-duty connector HDC-HDD series acts as its ‘central nervous system’. By using these high-density multi-pin industrial connectors, system integrators can more effectively manage complex wiring harnesses, reduce the total weight of cabling, and optimize the overall architecture of the system.