M5 A-Code 4-Pin Female Straight Front-Locking Socket is a compact circular connector designed for reliable connections in space-constrained industrial equipment. It features a 4-pin A-Code female contact configuration, straight socket design, front-locking mounting, and solder termination.
The connector uses an M5 × 0.5 screw-locking interface and provides IP67 protection when properly mated. Its compact construction makes it suitable for industrial automation, sensors, control equipment, and other applications requiring reliable panel-mounted connectivity.
Key Features & Advantages
- 4-Pin A-Code Female Configuration
- Straight Front-Locking Socket
- Solder Termination
- M5 × 0.5 Screw Locking
- IP67 Protection
- Compact M5 Circular Design
- Multiple Material Options
Technical Specifications
| Parameter | Specification |
|---|---|
| Connector Series | M5 |
| Coding | A-Code |
| Contact Configuration | 4 Pin |
| Connector Type | Female Straight Front-Locking Socket |
| Operating Standard | IEC 61076-2-105 |
| Rated Current | 1 A |
| Rated Voltage | 60 V |
| Rated Impulse Voltage | 500 V |
| Insulation Resistance | 100 MΩ |
| Contact Resistance | ≤5 mΩ |
| Shielding Performance | Non-Shielded |
| Locking Method | M5 × 0.5 Screw Lock |
| Recommended Screw Torque | 0.1 Nm |
| Maximum Screw Torque | 0.15 Nm |
| Wiring Method | Soldering |
| Operating Temperature | -40°C to +80°C Static / -25°C to +80°C Dynamic |
| Protection Rating | IP67 |
| Pollution Degree | 3 |
| Insulator Material | PA66 + GF / TPU + GF |
| Screw / Nut Material | Nickel-Plated Brass |
| Pin Material | Gold-Plated Phosphor Bronze / Gold-Plated Brass |
| Sealing Material | FKM / Silicone / Epoxy |
Contact Configuration
4-Pin A-Code Female

4-pin A-Code female contact arrangement follows the configuration shown in the technical drawing. The front-locking socket design provides a panel-mounted female interface with solder termination
Dimensions
The M5 A-Code 4-Pin Female Straight Front-Locking Socket features a compact circular design for space-constrained panel installations. Detailed dimensions, mounting configuration, and contact arrangement are shown in the product drawing.

Product Industry Applications
- Industrial Automation
- Sensors & Measurement
- Control Equipment
- Industrial Machinery
- Industrial Electronics






