SDC HUADA SDC-21S1 Micro Rectangular Electrical Connector

The SDC HUADA SDC-21S1 Micro Rectangular Electrical Connector is engineered for high-density applications requiring a compact and reliable connection solution. With dimensions matching the NDM series (0.635 pitch), this miniaturized connector offers a robust structure and small footprint, making it ideal for space-constrained environments.

Featuring a variety of core options (5, 9, 15, 21, 25, 31, 37, 51, 66, 74), the SDC-21S1 ensures versatility and adaptability to different electrical systems. The connector supports a crimping cross-section of 0.035mm² to 0.06mm² wire, adhering to the GJB7245-2011 and Q/MB25122-2018 standards for reliable performance.

Key technical characteristics include a maximum operating temperature of +125°C, minimum operating temperature of -55°C, and insulation resistance of 5000 mΩ. The connector is designed to withstand work pressures of 4.4 KPa, impacts of 490m/s², and vibrations ranging from 10-2000Hz at 196m/S². With a relative humidity tolerance of 40℃ at 98%, contact resistance of 15 mΩ, and a current rating of 1.8A, the SDC-21S1 ensures dependable performance in demanding conditions. Additionally, it boasts a mechanical life of 300 cycles and a pressure resistance of 300 V.

Key Features of the HUADA SDC-21S1 Micro Rectangular Electrical Connector

Design and Structure
Miniaturized Design: The SDC-21S1 is meticulously engineered to be compact and space-efficient, making it an ideal choice for applications where space is at a premium. Its dimensions are consistent with the NDM series (0.635 pitch), ensuring compatibility and ease of integration into existing systems.
High-Density Configuration: This connector is available in multiple core configurations, ranging from 5 to 74 cores. This versatility allows it to support high-density electrical connections, which is particularly beneficial for complex and multi-functional systems.
Performance and Reliability
Wide Temperature Range: The SDC-21S1 is designed to operate efficiently across a broad temperature spectrum, from -55°C to +125°C. This wide range ensures reliable performance in both extreme cold and hot environments, making it suitable for a variety of industrial and commercial applications.
High Insulation Resistance: With an insulation resistance of 5000 mΩ, the connector provides excellent electrical insulation. This high resistance minimizes the risk of electrical leakage and short circuits, enhancing the safety and reliability of the electrical system.
Mechanical Durability: The connector is built to endure up to 300 mechanical cycles, which translates to a long operational life. This durability ensures that the connector can withstand repeated connections and disconnections without compromising performance.
Environmental Resistance
Impact and Vibration Resistance: The SDC-21S1 is designed to withstand significant mechanical stress. It can endure impacts up to 490m/s² and vibrations in the range of 10-2000Hz at 196m/S². This robustness makes it suitable for use in environments with high mechanical stress, such as industrial machinery and automotive applications.
Humidity Tolerance: The connector can operate effectively in high humidity conditions, with a relative humidity tolerance of up to 98% at 40℃. This capability ensures reliable performance in humid and moisture-prone environments, such as outdoor installations and marine applications.
Electrical Specifications
Low Contact Resistance: With a contact resistance of just 15 mΩ, the SDC-21S1 ensures minimal electrical resistance at the connection points. This low resistance facilitates efficient electrical transmission and reduces power loss.
Current and Voltage Ratings: The connector supports a current rating of 1.8A and a pressure resistance of 300 V. These ratings make it suitable for a wide range of electrical applications, from low-power signal transmission to moderate power delivery.
Standards and Compliance
General Specifications: The SDC-21S1 adheres to the GJB7245-2011 standards, ensuring it meets the general requirements for electrical connectors.
Detailed Specifications: It also complies with the Q/MB25122-2018 standards, which specify detailed performance and quality criteria. This compliance guarantees that the connector meets rigorous industry standards for reliability and performance.

Technical Features Table