EIAJ connector

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Yellow EIAJ connector

The EIAJ connector ( Electronic Industries Association of Japan ) is a special type of barrel connector for the power supply of small appliances. It has a yellow insulating ring at the tip and can therefore be easily recognized. In addition, a restraint system is built into the connector throughout the EIAJ system. With types 1 to 3 this consists of a beveled edge at the outer connector end, while with types 4 and 5 the yellow insulating ring is larger than the metallic connector sleeve.

The basic idea is that the bigger the voltage , the bigger the connector. This prevents the mechanically larger plugs with a higher voltage from being plugged into device sockets with a lower nominal voltage. This avoids damage to the device due to overvoltage .

Connector
name 		Minimal
tension 		Rated
voltage 		Rated
current 		Outside
diameter 		Inside
diameter 		Pin
diameter 		Connector length Remarks
EIAJ-01 0 V 3.15V 2 A Plug: 2.35mm socket: 2.75mm hole hole
 Plug: 0.7 mm socket: 0.65 mm pin pen
 not applicable 9.5-13 , 0mm Philmore 235 male / 205 PCB female
EIAJ-02 3.15V 6.3V 2 A Plug: 4.0mm socket: 4.4mm hole hole
 Plug: 1.7 mm socket: 1.65 mm pin pen
 not applicable 9.5 mm Philmore 240 plug / TC240 cord / 207 PCB socket
EIAJ-03 6.3V 10.5V 2 A Plug: 4.75 mm socket: 5.15 mm hole hole
 Plug: 1.7 mm socket: 1.65 mm pin pen
 not applicable 9.5-12 , 0mm Philmore 275 plug / TC275 cord / 220 PCB socket
EIAJ-04 10.5V 13.5V 2 A 5.5 mm hole 3.4 mm pen 1.0 mm 9.5-13.5 mm Philmore 255 connector
EIAJ-05 13.5V 18.0V 2 A 6.5 mm hole 4.4 mm pen 1.4 mm 9.5-16 , 0mm Philmore 265 plug / TC265 cord / 214 PCB socket

The standard was originally defined as EIAJ RC-6705 in 1992. An update took place in 1997 and 2005.

use

The following Japanese companies, along with many others, use the EIAJ connector for their devices:

credentials