Wholesale Circular Electrical Connector(599 Series II) Suppliers, Exporter

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Wholesale Circular Electrical Connector(599 Series II) Suppliers, Exporter

599â…¡ product is a small circular electrical connector. This product uses an advanced crimp termination method, features high reliability, and is suitable for signal transmission and electrical connection between devices under various environmental conditions. It is widely used in fields such as aviation, aerospace, electronics, ships, satellites, weapons, and the information industry.

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Product Description

Production Introduction

Bayonet-style quick connection.

In the 599 series, it has the smallest volume, lightest weight, and shortest shell.

EMI/RFI Shielding.

Crimped contacts are removable and do not prevent misinsertion.

Application: Circuit signal connection.

Main Technical Performance

Mechanical Performance

Shell material: Aluminum alloy, Stainless steel

Plating:

• Class B: Cadmium plating with military green
• Class E: Stainless steel passivation
• Class F: Electroless nickel plating

Insulator: Thermosetting Plastic

Cable seal and sealing ring: Silicone rubber

Electrical Performance

Contact Resistance of Contacts and Rated Current:

Contact Specifications	Working Diameter (mm)	Contact Resistance (mΩ)	Rated Current (A)
22D	Φ0.76	≤ 12	5
20#	Φ1.00	≤ 5	7.5
16#	Φ1.60	≤ 2.5	13
12#	Φ2.40	≤ 1.5	23

Electromagnetic Interference Shielding (EMI): Minimum attenuation of 45dB at 100MHz - 1GHz.

Environmental Performance

Operating Temperature:

• Class B: -65°C to +175°C
• Classes E and F: -65°C to +200°C

Salt spray:

• Class B: 500h
• Class E: 1000h
• Class F: 48h

Circular Electrical Connector 599 Series II

Operating Environment

The lightweight electrical connector is suitable for applications not subjected to high-intensity vibration, harsh sand, dust, or humidity.

Mechanical & Structure Features

Contact Features: Gold-plated copper alloy, Crimp type, solder type, (PCB) type.

Mechanical Life: 500 cycles.

Vibration: Random Vibration: Frequency 100 - 1000 Hz, Power Spectral Density 1 g²/Hz.

Shock: 3ms half-sine wave, Peak Acceleration 300g.

Withstand Voltage

Operating Class*	M	I	II
Sea Level	1300	1800	2300
21000m	800	1000	1000

Note: Different contact arrangements have different working levels. For specific working levels, please refer to the letters in the upper right corner of the contact arrangement.

Environmental Limits

Insulation Resistance: Normal ≥ 5000MΩ; Humid ≥ 100MΩ.

Electrical continuity between shells:

• Class B: ≤ 2.5mΩ
• Class F: ≤ 1.0mΩ
• Class E: ≤ 50mΩ

Relative Humidity: Up to 98% at 40°C.

Operating Altitude: ≤ 30480 m.

Frequently Asked Questions

What are the main advantages of the 599 Series II connectors?

The 599 Series II features a bayonet-style quick connection. It has the smallest volume, lightest weight, and shortest shell within the 599 series, and provides effective EMI/RFI shielding.

What shell materials and plating options are available?

The shells are available in Aluminum alloy and Stainless steel. Plating options include Class B (Cadmium plating with military green), Class E (Stainless steel passivation), and Class F (Electroless nickel plating).

What is the operating temperature range for these connectors?

The operating temperature limits depend on the class: Class B ranges from -65°C to +175°C, while Classes E and F are rated for -65°C to +200°C.

What is the insulation resistance performance under different conditions?

Under normal environmental conditions, the insulation resistance is ≥ 5000MΩ. In humid environments, it maintains a resistance of ≥ 100MΩ.

Are the crimped contacts removable?

Yes, the crimped contacts are designed to be removable and their structure is configured to prevent misinsertion during assembly.

What are the electrical continuity limits between shells?

The shell-to-shell electrical continuity limits are ≤ 2.5mΩ for Class B, ≤ 1.0mΩ for Class F, and ≤ 50mΩ for Class E.