Reference Guide

C1

Current: 2.5A

C2

C5

Current: 2.5A

C6

C7

Current: 2.5A

C8

C9

Current: 6A

C10

C13

Current: 10A

C14

C15

Current: 10A

C16

C17

Current: 10A

C18

C19

Current: 16A

C20

C21

Current: 16A

C22

C23

Current: 16A

C24

C11

C12

C15A

C16A

Type A

Current: 15A

39 Countries using Type A plug

Antigua and Barbuda, Bahamas, Bangladesh, Barbados, Belize, Bolivia, Cambodia, Canada, China, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Jamaica, Japan, Laos, Marshall Islands, Mexico, Myanmar, Nicaragua, Palau, Panama, Paraguay, Peru, Philippines, Saint Kitts and Nevis, Saint Vincent and the Grenadines, Suriname, Taiwan, Thailand, Trinidad and Tobago, United States, Venezuela, Vietnam.

Type B

Current: 15A

37 Countries using Type B plug

Antigua and Barbuda, Bahamas, Barbados, Belize, Bolivia, Cambodia, Canada, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Jamaica, Japan, Laos, Marshall Islands, Mexico, Myanmar, Nicaragua, Palau, Panama, Paraguay, Peru, Philippines, Saint Kitts and Nevis, Saint Vincent and the Grenadines, Suriname, Taiwan, Thailand, Trinidad and Tobago, United States, Venezuela, Vietnam.

Type C

Current: 2.5A

Type C plug is special. It is compatible with Type E, F, G, J, K, L and N sockets.

118 Countries using Type C plug

Europe: Albania, Andorra, Austria, Belarus, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Moldova, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, Portugal, Romania, Russia, San Marino, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Ukraine, Vatican City.

Africa: Algeria, Angola, Benin, Burkina Faso, Burundi, Cameroon, Cape Verde, Chad, Comoros, Republic of the Congo, Democratic Republic of the Congo, Côte d’Ivoire, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini, Ethiopia, Gabon, Guinea, Guinea-Bissau, Liberia, Libya, Madagascar, Mali, Mauritania, Mauritius, Morocco, Niger, Rwanda, São Tomé and Príncipe, Senegal, Somalia, South Africa, South Sudan, Sudan, Togo, Tunisia.

Asia / Middle East / Eurasia: Afghanistan, Armenia, Azerbaijan, Bangladesh, Bhutan, Cambodia, Georgia, Indonesia, Iran, Iraq, Israel, Jordan, Kazakhstan, Kyrgyzstan, Laos, Lebanon, Maldives, Mongolia, Myanmar, Nepal, North Korea, Pakistan, Philippines, Singapore, South Korea, Syria, Tajikistan, Thailand, Timor-Leste, Turkey, Turkmenistan, Uzbekistan, Vietnam, Yemen.

Americas: Bolivia, Brazil, Chile, Paraguay, Peru, Uruguay.

Type F

Current: 16A

64 Countries using Type F plug

Afghanistan, Albania, Algeria, Andorra, Angola, Armenia, Austria, Azerbaijan, Bosnia and Herzegovina, Bulgaria, Cape Verde, Chad, Croatia, Denmark, Egypt, Estonia, Ethiopia, Finland, Georgia, Germany, Greece, Guinea, Guinea-Bissau, Hungary, Iceland, Indonesia, Iran, Italy, Jordan, Kazakhstan, Kosovo, Kyrgyzstan, Latvia, Lebanon, Liberia, Libya, Lithuania, Luxembourg, Moldova, Mongolia, Montenegro, Netherlands, North Korea, North Macedonia, Norway, Portugal, Romania, Russia, Rwanda, San Marino, São Tomé and Príncipe, Serbia, Slovenia, South Korea, Spain, Sweden, Syria, Tajikistan, Timor-Leste, Turkey, Turkmenistan, Ukraine, Uruguay, and Uzbekistan.

Type G

Current: 13A

41 Countries using Type G plug

Bahrain, Brunei, Cyprus, Dominica, Ethiopia, Gambia, Ghana, Grenada, Iraq, Ireland, Jordan, Kenya, Kuwait, Liberia, Malawi, Malaysia, Maldives, Malta, Mauritius, Nigeria, Oman, Qatar, Rwanda, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Saudi Arabia, Seychelles, Sierra Leone, Singapore, Somalia, South Sudan, Sri Lanka, Sudan, Tanzania, Uganda, United Arab Emirates, United Kingdom, Yemen, Zambia, and Zimbabwe.

Type I

Current: 10A

15 Countries using Type I plug

Argentina, Australia, China, Fiji, Kiribati, Myanmar, Nauru, New Zealand, Papua New Guinea, Samoa, Solomon Islands, Timor-Leste, Tonga, Tuvalu, and Vanuatu.

Type M

Current: 15A

10 Countries using Type M plug

Bangladesh, Bhutan, Botswana, Eswatini, India, Lesotho, Mozambique, Namibia, Nepal, Singapore and South Africa.

Measuring the pitch

The pitch of the connector is the distance between the header pins of the connector. This can usually uniquely identify the connector to a list of connectors based on pitch size alone.

The pitch distance is from the centre pin to the centre pin of the adjacent pin on the header connector. While this is what defines the pitch, it is however difficult to measure from the center of the header pin in actual practice.

So instead of measuring from the center of the pin, we measure the outer side of the pin and subtract it by the pin thickness. This will give us an equivalent of the pitch size.

Measuring the outer pins

Measuring pin thickness

Calculate the pitch

Computing the equivalent pitch size of this connector socket.

Pitch size = Outer distance – Pin thickness
Pitch size = 3.1mm – 0.6mm = 2.5mm
Pitch size = 2.5mm

This concludes that the pitch of this connector is 2.5mm.

Measurement without using a precision tool

Instead of using a precision tool, you can also use a simple ruler to estimate the pitch of the connector. It is not precise in reading, not recommended, but it is better than no measurement.

You can use a magnifying glass or a camera phone to help you capture the measurement, and permit you to measure the pitch visually.

A tip to improve the accuracy when measuring using a simple ruler is to measure the outer side distance over more pins instead of just the adjacent pins. The more the better.

For example in this 4-pin connector example, measure the outer distance between pin 1 and pin 4. This will give you a reading close to 8.1mm. Subtract this by the pin thickness of 0.6mm and divide the result by 3. This will return a result closer to the actual pitch of the connector.