HUADA CDb-21T1 Micro Rectangular Electrical Connector | 1.27mm Pitch, 21 Cores
High-Density Micro HUADA CDb-21t1 Connector for Harsh Environments
The HUADA CDb-21T1 micro rectangular electrical connector combines compact dimensions with impressive versatility. With a 1.27mm pitch and 21 cores, it’s ideal for applications where space is at a premium. Whether in aerospace avionics, medical devices, or industrial machinery, this connector ensures reliable signal transmission. Its robust construction withstands harsh environments, including temperature extremes (-55°C to +125°C), vibration, and pressure. The low contact resistance (8 mΩ) and high current capacity (up to 3A) make it a go-to choice for engineers seeking dependable connectivity solutions.
Designed to meet GJB2446 and Q/MB20604-2018 standards, the HUADA CDb-21T1 connector delivers precision-engineered performance. Its crimping cross-sectional area (0.05mm²~0.15mm²) ensures secure connections, while the insulation resistance of 5000 mΩ guarantees signal integrity. Whether in avionics systems, medical imaging equipment, or robotics, this connector excels. Its mechanical life of 500 cycles and pressure resistance up to 600V underscore its reliability. Choose the HUADA CDb-21T1 for a micro connector that combines efficiency, durability, and adaptability.
Key features of the HUADA CDb-21T1 Connector
Weight: Approximately 9.65 lbs (4.38 kg) for both models.
Dimensions: 2.75 x 8.72 x 11.07 inches (6.98 x 22.15 x 28.12 cm) for both CDB-8U and CDB-8P variants.
The compact design ensures space efficiency in various applications.
Environmental Resilience: Operating Temperature Range: Up to 122°F (50°C) at altitudes up to 5000 ft (1524 m).Up to 113°F (45°C) at altitudes up to 10,000 ft (3048 m).
Storage Temperature: Safely store the connector between -13°F and 158°F (-25°C to 70°C) at altitudes up to 15,000 ft (4572 m).
Humidity Tolerance: During operation, the connector thrives in relative humidity ranging from 5% to 90% (non-condensing). Storage conditions allow for relative humidity up to 95% (non-condensing).
Altitude Considerations: Whether you’re at sea level or scaling mountains, the HUADA CDb-21T1 performs reliably up to 10,000 ft (3048 m) during operation and up to 15,000 ft (4572 m) during storage.
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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