High-Density Micro-D Connector: HUADA CDb-25TYN-J 1.27mm Pitch, 25 Cores
Ultra-Compact Micro-D HUADA CDb-25TYN-J Connector for Harsh Environments
The HUADA CDb-25TYN-J is a high-density micro rectangular electrical connector designed for demanding applications. With a 1.27mm pitch and options for 9 to 51 cores, it offers exceptional versatility. Its compact form factor allows space-saving installations in tight spaces. Whether used in aerospace avionics, medical devices, or industrial equipment, this connector ensures reliable signal transmission even in harsh environments. The crimping cross-sectional area ranges from 0.05mm² to 0.15mm², making it suitable for various wire gauges. Additionally, its robust construction withstands vibration, impact, and pressure, ensuring long-lasting performance.
The HUADA CDb-25TYN-J connector operates within a wide temperature range, from -55°C to +125°C. Its low contact resistance (8 mΩ) ensures efficient signal transfer, while the insulation resistance of 5000 mΩ guarantees reliable electrical isolation. With a mechanical life of 500 cycles, this connector withstands repeated mating and unmating. Whether in avionics systems, medical imaging devices, or industrial automation, the CDb-25TYN-J delivers consistent performance, making it an ideal choice for engineers seeking reliability and space efficiency.
Key Features of the HUADA CDb-25TYN-J Connector
Rated Voltage and Current: The CDb-25TYN-J operates at a rated voltage of 800 V. On the input side, it can handle up to 150 A, while the output side supports 75 A.
These robust ratings ensure reliable performance even in demanding applications.
Tightening Torque and Housing Material: When installing the connector, apply 6 Nm of tightening torque on the input side and 2 Nm on the output side.
The housing material is polyamide, combining durability with lightweight design.
Function and Wire Entry Orientation: The CDb-25TYN-J serves as a modular distribution block with a bolt-type input connection. It simplifies distribution systems by providing multiple connection points for outgoing wires.
For ease of installation, the wire entry is from the side.
Mounting Possibility and Surge Voltage Rating: You can mount this connector on DIN 32, DIN 35, and DIN 35-15 rails.
It has a surge voltage rating of 8 KV, ensuring protection against voltage spikes.
Pollution Degree and Dimensions: The connector complies with pollution degree 3 standards.
Its dimensions include a height of 62.3 mm (with DIN 32 rail), 64.7 mm (with DIN 35 x 15 mm rail), and 57.2 mm (with DIN 35 x 7.5 mm rail). The length is 49 mm.
Conductor Cross Section and Ordering Options: The CDb-25TYN-J accommodates stranded conductors: imum: 6 mm²
Maximum (Output Side): 25 mm²
Maximum (Input Side): 50 mm²
You can choose from different ordering options based on the number of outputs (e.g., CDB25/1, CDB25/2, etc.).
Technical Features Table:
Minimum Operating Temperature | -55 °C |
Maximum Operating Temperature | +125 °C |
Current | 3 A |
Insulation Resistance | 5000 mΩ |
Mechanical life | 500 |
Work pressure | 4.4 KPa |
Pressure Resistant | 600 V |
Contact Resistance | 8 mΩ |
Vibration | 10~2000Hz 196m/S2 |
Impact | 490 m/s2 |
Relative humidity | 40℃, 98% |

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