Digi-Key carries a variety of circular Connector.
When choosing the connector one common spec is the Shell Size of the connector.
This will be focused towards the TE Connectivity CPC Series circular connectors.
On the Filter system, for choosing the correct connector, one filter will be for Shell Size - Insert.
What do these numbers call out?
For Example: The 11-4 shell size
The first number 11 is the Shell size diameter.
This is based on military nomenclature referenced to approximately 1/16th inch increments.
The second number 4 will be the insert, which is the total number of contacts.
Some connector shell sizes may have a M at the end. This will call out that the Housing will have Mixed contacts in it. This can be two different sizes.
For example: 23-13M will be Approximately 23/16 inches or 1-7/16 inches in diameter.
it will have a total number of contacts of 13. This could be 8 signal and 5 power contacts or another arrangement depending on the connector.
Please note that not all Circular Connectors will follow this spec. This is a common rule of thumb, but The Insert can be different per connector series.
For example: The part AMS3102R32-13P-ND is a 23position Mil Spec Receptacle.
It has the Shell Size - Insert arrangment of 32-13. In this case the 13 does not call out the number of positions.
Please make sure to check Manufacturer Data sheets to verify the correct contact arrangements and Total contacts.
Applicable TE Part Numbers
A1301-ND A1361-ND A1360-ND A1302-ND A1303-ND A1351-ND A1352-ND A1300-ND A1357-ND A1305-ND A1362-ND A1681-ND A1307-ND A1364-ND A1358-ND A1304-ND A99538-ND A1354-ND A1363-ND A1638-ND A1644-ND A1306-ND A1359-ND A1641-ND A1685-ND A1369-ND A25053-ND A1635-ND A1643-ND A1350-ND A1378-ND A1642-ND A1374-ND A1371-ND A1377-ND A1645-ND A16037-ND A1646-ND A1383-ND A25787-ND A114494-ND A114429-ND A1353-ND A1675-ND A99549-ND A99519-ND A99535-ND A1683-ND A1677-ND A106925-ND A99556-ND A16015-ND A1367-ND A1370-ND A1373-ND A16030-ND A1372-ND A1366-ND A16016-ND A1356-ND A99555-ND A16031-ND A1375-ND A1673-ND A1368-ND A16019-ND A25785-ND A1636-ND A1669-ND A99559-ND A1380-ND A1365-ND A1686-ND A1376-ND A16020-ND A1671-ND A113073-ND A1682-ND A1355-ND 796095-2-ND A16036-ND A1637-ND A1639-ND A25786-ND A25781-ND A107443-ND A114491-ND A25783-ND A1384-ND A122795-ND A1381-ND A122478-ND A122797-ND 796274-1-ND 796286-1-ND A99558-ND A99534-ND A99537-ND A1670-ND A99547-ND A113095-ND A113096-ND A1684-ND A122798-ND A16017-ND A25057-ND A113012-ND A16034-ND A105571-ND A16033-ND A1676-ND 206137-5-ND A106308-ND A105001-ND 788159-2-ND A113098-ND A114427-ND A25782-ND A16035-ND A25045-ND 788154-2-ND 796276-1-ND 796274-2-ND A122397-ND A16032-ND A122383-ND A122796-ND A122394-ND A1382-ND 796272-1-ND A99536-ND A114492-ND 183079-1-ND A16018-ND A113102-ND A113072-ND A113013-ND A113011-ND A113094-ND A113103-ND A113015-ND A117365-ND 206433-3-ND A114495-ND 796190-1-ND A117371-ND A117372-ND A118320-ND A114496-ND A99552-ND A1379-ND A25038-ND A122389-ND A1386-ND 788153-2-ND 796275-1-ND 796288-1-ND A99545-ND A113100-ND A99550-ND A99544-ND A99551-ND A99548-ND A121357-ND A122390-ND A16029-ND A106394-ND A106213-ND 787610-1-ND 796271-1-ND A121037-ND A99546-ND A1672-ND A105266-ND A99557-ND A122800-ND A122391-ND A1674-ND A25044-ND 788155-2-ND 796207-1-ND A114497-ND A114498-ND A113101-ND A113021-ND A113014-ND A25049-ND A113097-ND A113104-ND A113099-ND A114426-ND A113080-ND A117366-ND A113020-ND A117361-ND A116568-ND A1385-ND A117362-ND A117748-ND A114499-ND A116569-ND A117363-ND A117364-ND 788188-1-ND A117367-ND A118321-ND A117370-ND A117368-ND A114428-ND A117369-ND A114430-ND A1640-ND A122576-ND A122799-ND A105002-ND 183083-1-ND 211908-1-ND 213129-1-ND 213130-1-ND 211427-1-ND 213128-1-ND 211401-8-ND 206136-3-ND 206036-7-ND 213626-1-ND 206430-5-ND A1678-ND 213130-3-ND 211773-3-ND 211398-3-ND 1986519-1-ND 211777-1-ND A113036-ND 183078-1-ND 211770-3-ND 206150-6-ND 211401-7-ND 206838-5-ND 213893-1-ND 211769-4-ND A113016-ND 213889-1-ND 206151-8-ND 213894-1-ND 206612-2-ND 211772-3-ND 796450-1-ND 206838-8-ND 183073-1-ND 796437-2-ND 796437-1-ND 213890-1-ND 206037-4-ND 796439-2-ND 826676-2-ND 211769-5-ND A113074-ND A116570-ND 206227-6-ND 205842-2-ND 206306-5-ND 206136-4-ND 211771-2-ND 2267081-1-ND 796274-4-ND 796112-1-ND 796273-1-ND 206460-1-ND A114500-ND 796271-2-ND 788159-1-ND 206039-3-ND 1776317-1-ND 206886-1-ND 1986170-1-ND 1986169-1-ND 205838-2-ND 206438-3-ND 211824-2-ND 213953-1-ND 205841-4-ND 206437-2-ND 208131-2-ND 206043-8-ND
206061-1 206430-2 206430-1 206708-1 206705-1 206153-1 206705-2 206060-1 206429-1 206036-1 206043-1 206036-2 206151-1 206306-1 206044-1 206037-1 182649-1 206838-1 206043-3 211399-1 211400-1 206150-1 206305-1 211398-1 206037-2 206433-1 211102-1 211401-1 211773-1 206837-1 206038-1 211769-1 206485-1 206434-1 205839-3 211768-1 206612-1 211772-1 206437-1 213906-1 796188-1 788189-1 206036-3 206430-3 182921-1 182651-1 182642-1 206207-1 206043-4 213860-1 183040-1 206425-1 205841-2 206433-2 206486-2 207486-1 206486-1 205841-1 206227-1 206151-2 183039-1 206613-1 205840-3 206838-3 205838-1 206426-1 213893-2 211767-1 206705-3 211769-3 206039-1 206306-2 206136-1 206152-1 206226-1 206036-4 211401-4 206137-1 206838-2 796095-2 207485-1 211771-1 211766-1 213894-2 213889-2 788157-2 796094-2 213905-1 205843-1 206036-8 206438-1 796449-1 211398-4 796274-1 796286-1 183077-1 182641-1 182647-1 206705-4 182919-1 213849-1 213850-1 206137-2 211401-3 206425-2 206554-1 206151-4 206613-3 206150-2 207486-2 206430-4 206137-5 211103-1 206038-4 788159-2 213852-1 788158-2 213890-2 211824-1 206126-1 788154-2 796276-1 796274-2 211882-1 211825-2 183082-1 207486-5 208131-1 206438-2 796272-1 182645-1 796096-2 183079-1 206227-2 213866-1 211398-2 206153-2 206150-3 213848-1 213868-1 206306-3 1977882-1 206433-3 796203-1 796190-1 1977890-1 1977892-1 1977889-1 796275-2 182926-1 206038-2 206061-2 206037-3 205842-1 788153-2 796275-1 796288-1 182917-1 213862-1 182922-1 182916-1 182923-1 182920-1 206060-2 206837-3 211825-1 206837-2 205840-4 787610-1 796271-1 796276-2 182918-1 206036-5 206061-3 183075-1 211769-2 207485-2 206838-4 206125-1 788155-2 796207-1 796287-1 796291-1 213864-1 206613-5 206305-4 206151-3 213851-1 213870-1 213853-1 788157-1 213581-1 1977883-1 206516-1 1977876-1 1977878-1 205843-2 1977877-1 796466-1 796330-1 1977881-1 1977879-1 1977880-1 788188-1 1977885-1 1977891-1 1977888-1 1977886-1 788188-2 1977887-1 788189-2 211770-2 206708-2 211767-2 206425-5 183083-1 211908-1 213129-1 213130-1 211427-1 213128-1 211401-8 206136-3 206036-7 213626-1 206430-5 206043-5 213130-3 211773-3 211398-3 1986519-1 211777-1 208130-1 183078-1 211770-3 206150-6 211401-7 206838-5 213893-1 211769-4 206306-4 213889-1 206151-8 213894-1 206612-2 211772-3 796450-1 206838-8 183073-1 796437-2 796437-1 213890-1 206037-4 796439-2 826676-2 211769-5 211839-1 1977884-1 206227-6 205842-2 206306-5 206136-4 211771-2 2267081-1 796274-4 796112-1 796273-1 206460-1 796332-1 796271-2 788159-1 206039-3 1776317-1 206886-1 1986170-1 1986169-1 205838-2 206438-3 211824-2 213953-1 205841-4 206437-2 208131-2 206043-8