China DC Connector (DC Power Connector) Suppliers, Manufacturers

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China DC Connector (DC Power Connector) Suppliers, Manufacturers

The key interface for power transmission is designed specifically for DC power supply systems to achieve safe and reliable connection between equipment and power sources. Adopting copper alloy nickel/gold plated contacts, supporting 2.5A~30A current loads, with a withstand voltage of up to 500V, equipped with anti misoperation structure and quick locking mechanism, widely used in consumer electronics, industrial equipment, new energy systems and medical instrument fields, it is the core component to ensure stable power supply of equipment.

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Product Description

Application Section

Application 01

Consumer Electronics

Fast charging device: mobile phone/laptop adapter port, supporting PD3.1 protocol 100W power transmission.
Home appliance power supply: Smart speaker/router DC input interface, anti electric shock design in accordance with IEC 62368 standard.

Application 02

Industry and Energy

Industrial control power module: connected to 24V/48V industrial bus, capable of withstanding 10kV surge impact (IEC 61000-4-5).
Photovoltaic inverter: Outdoor connector protection level IP68, resistant to UV aging for 2000 hours.

Application 03

Transportation

Electric vehicle charging: The high current version supports CHAdeMO/CCS standards, with a temperature rise of <30 ℃ and a continuous load of 30A.
Rail transit: Fire resistant connectors meet the EN 45545-2 HL3 rating.

Application 04

Medical Equipment

Medical imaging system: Redundant contact design ensures zero power interruption for ICU equipment.
Portable monitor: Magnetic DC interface supports one handed blind insertion operation.

Function Introduction

Feature 01

High Current Carrying Capacity

Silver plated contacts reduce contact resistance (<10m Ω), and the 30A version has a temperature rise of ≤ 40 ℃ (ambient 25 ℃).
The insulation has a CTI resistance of ≥ 600V and complies with UL 1977/IEC 60512 standards.

Feature 02

Security Protection Mechanism

Polarity anti reverse insertion design (inner hole/outer needle shaped structure), with a protection force of over 50N against accidental insertion.
The version with locking buckle has a tensile strength of ≥ 80N and seismic performance in accordance with MIL-STD-202G standard.

Feature 03

Quick Connection and Maintenance

Push pull/thread coupling method, with a insertion and extraction cycle of >5000 times.
Configurable LED power indicator light (voltage range 3-48VDC).

Feature 04

Environmental Adaptability

Fully sealed silicone ring structure (IP67/IP69K), resistant to high-pressure water gun cleaning.
The high-temperature resistant model shell is made of PPS material (continuous working temperature of 200 ℃).

Feature 05

Multi Specification Compatibility

Standard caliber 5.5 × 2.1mm/3.5 × 1.35mm, optional aviation plug/PCB direct welding type.
Support customized 24V/48V system specific interfaces, including EMI filtering function.

Frequently Asked Questions

Q1: What are the main applications of these DC connectors?

A1: These DC connectors are widely used in consumer electronics (laptops, smart speakers), industry and energy (photovoltaic inverters, industrial control power modules), transportation (EV charging, rail transit), and medical equipment (imaging systems, portable monitors).

Q2: How do the DC connectors ensure safety against accidental insertion and reverse polarity?

A2: The connectors feature a polarity anti-reverse insertion design with an inner hole/outer needle-shaped structure, providing a protection force of over 50N against accidental mismatches, conforming to IEC 62368 safety standards.

Q3: What current capacity and temperature rise limits do these connectors support?

A3: With silver-plated contacts, they keep contact resistance below 10mΩ. The 30A high-current version guarantees a temperature rise of ≤ 40 ℃ (at 25 ℃ ambient), complying with UL 1977 and IEC 60512 specifications.

Q4: Are these DC connectors suitable for outdoor or harsh environments?

A4: Yes, options with fully sealed silicone rings provide IP67/IP69K protection ratings, allowing them to withstand high-pressure water cleaning. They also offer UV resistance for up to 2000 hours and continuous working temperatures of 200 ℃ with PPS shells.

Q5: What are the standard calibers and coupling options available?

A5: Standard calibers include 5.5 × 2.1mm and 3.5 × 1.35mm. Coupling types include push-pull and thread coupling, with options for aviation plugs or PCB direct welding, as well as customizable 24V/48V system interfaces.

Q6: What is the typical connection lifespan and durability?

A6: These connectors feature robust mechanical structures supporting over 5000 insertion and extraction cycles. Models with locking buckles can withstand tensile loads of ≥ 80N and meet MIL-STD-202G standards for vibration and seismic resistance.

Product Detail

China DC Connector (DC Power Connector) Suppliers, Manufacturers

Product Description