Compactness: The M9 circular connector, with its relatively small form factor (approximately 9 millimeters in diameter), is suitable for space-constrained application environments.
Protection grade: The M9 yuan connector has an IP67 or higher protection grade, which can prevent dust and water, and maintain good performance even in harsh environments
Termination methods: Soldering termination and dip soldering PCB connection. In addition, there is a cable mounting version, which is suitable for direct connection with cables
Material selection: High-quality engineering plastics or metal casings are adopted, and gold-plated contacts are equipped to ensure good electrical contact performance.
Rated voltage: Depending on the specific model, the rated voltage of the M9 connector can reach 125VAC or higher
Rated current: Each contact can carry a current of up to 4A.
Locking mechanism: The threaded locking mechanism is a standard configuration of M9 connectors, providing a safe and reliable connection and preventing accidental disconnection caused by vibration or other mechanical stresses.
As an interface between sensors and actuators, especially in automated production lines.
It serves as the connection point between power supply and control signals in commercial lighting systems.
It is used in aviation controllers and other devices that require highly reliable connections
| Number of pins/holes core |
4Pin |
| Plug Type |
Female |
| Dummy-proof keying |
A |
| Straight/ Elbow |
Straight |
| Terminal connection type |
Plug plate type |
| Mounting type |
Front-facing nut |
| Protection Rating |
IP68 |
| Wire Gauge/Size |
26AWG/0.14mm² |
| Operating Temperature |
-40°C Tо +80°C (Fixed Installation) -20°C Tо +80°C (flexible mounting) |
| Number of insertions and removals |
> 500 insertions and removals |
| Rated voltage |
60V |
| Rated impulse voltage |
1500V |
| Rated current |
3A |
| Contact resistance |
5mΩ |
| Insulation resistance |
100 MΩ |
| Shielding structure |
non-shielded |
| Shell material |
copper nickel-plated |
| Connector core |
PA66 + GF |
| Pollution class |
III |
| Flame retardant grade |
UL94 V0 |
| Industry Standard |
IEC61076-2-111 |
M9 Circular Connector Size Diagram
M9 Circular Connector Electrical Parameter
|
Product model
|
Pins
|
Rated current
|
Rated voltage
|
Wire Gauge/Size
|
|||
|
A/C
|
D/C
|
AWG
|
mm²
|
||||
| MC09NM-02R2LDLNS1701 |
2
|
4A
|
125V
|
125V
|
24
|
0.25
|
|
| MC09NM-03R2LDLNS1701 |
3
|
4A
|
125V
|
125V
|
24
|
0.25
|
|
| MC09NM-04R2LDLNS1701 |
4
|
3A
|
125V
|
125V
|
24
|
0.25
|
|
| MC09NM-05R2LDLNS1701 |
5
|
3A
|
125V
|
125V
|
24
|
0.25
|
|
| MC09NM-06R2LDLNS1701 |
6
|
1A
|
125V
|
125V
|
26
|
0.14
|
|
| MC09NM-07R2LDLNS1701 |
7
|
1A
|
125V
|
125V
|
26
|
0.14
|
|
| MC09NM-08R2LDLNS1701 |
8
|
1A
|
125V
|
125V
|
26
|
0.14
|
|
M9 Circular Connector Coding Parameter
| Pins | 2 | 3 | 4 | 5 |
| Male |  |
 |
 |
 |
| 6 | 7 | 8 | ||
 |
|
 |
||
| Pins | 2 | 3 | 4 | 5 |
| Female |  |
 |
 |
 |
| 6 | 7 | 8 | ||
 |
 |
 |
M9 Circular Connector Connector Wire Definition
| Pins | 2 Pin Core Color | Pins | 6 Pin Core Color | ||
| 1 | BN |  |
1 | BN | |
| 2 | BU |  |
2 | WH |  |
| 3 | BU | |
|||
| 4 | BK |  |
|||
| Pins | 3 Pin Core Color | 5 | GY |  |
|
| 1 | BN | |
6 | PK |  |
| 2 | BU | |
|||
| 3 | BK | |
Pins | 7 Pin Core Color |
|
| 1 | WH | |
|||
| Pins | 4 Pin Core Color | 2 | BN | |
|
| 1 | BN | |
3 | GN |  |
| 2 | WH | |
4 | YE |  |
| 3 | BU | |
5 | GY | |
| BK | |
6 | PK | |
|
| 7 | BU | |
|||
| Pins | 4 Pin Core Color | ||||
| 1 | BN | |
Pins | 8 Pin Core Color | |
| 2 | WH | |
1 | WH | |
| 3 | BU | |
2 | BN | |
| 4 | BK | |
3 | GN | |
| 5 | GY | |
4 | YE | |
| 5 | GY | |
|||
| 6 | PK | |
|||
| 7 | BU | |
|||
| 8 | RD |  |
|||
Note: If you need more parameter pictures or can not see clearly, please contact our customer service staff
M9 Circular Connector Connector PCB Pins Arrangement
| Pins | 2 | 3 | 4 | 5 |
|
Male |
 |
 |
 |
 |
| 6 | 7 | 8 | ||
 |
 |
 |
||
| Pins | 2 | 3 | 4 | 5 |
| Female |  |
 |
 |
 |
| 6 | 7 | 8 | ||
 |
 |
 |
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