This Product Selection Guide contains information to help select products in the Coaxial Connector (RF) Assemblies category on DigiKey.com
Products in the coaxial connector family are interconnect devices used with cable materials consisting of a central conductor surrounded by insulation material and an outer conductor of circular cross section, designed to maintain a consistent characteristic impedance over the length of the material in order to serve as a suitable transmission line for high frequency signals.
SelectionCharacteristics
Connector Style: Indicates a specific type of connector with which the assembly is designed to be used.
Connector Type: Indicates the physical format of the connector and the contact gender where applicable.
Contact Termination: Identifies how the contact attaches to the wire, such as crimp, compression, or solder.
Shield Termination: Indicates the means by which a coaxial cable shield (or the equivalent conductor on board-mounted connectors) is affixed to the connector.
Impedance: Identifies the effective resistance of the device to alternating current. It is comprised of resistance and reactance. It is measured in Ohm’s and uses the metric system for values. Due to the impedance matching requirements, it’s important to use the right contact.
Mounting Type: Indicates how the device is attached.
Mounting Feature: A modifying feature to how the device is being attached.
Cable Group: Indicates the type(s) of cable material with which a connector is intended for use, in terms of standard designations or manufacturer model number.
Fastening Type: The mating retention mechanism employed by the device.
Frequency - Max: This represents the maximum frequency to which a device will meet its given specifications. Exceeding this frequency may cause erratic performance, or damage the device and other system components.
Number of Ports: Indicates the number of connections.
Features: These are different capabilities or properties of the device such as keyed, non-magnetic, or sealed.
Housing Color: The dominant color of the housing of the device.
Ingress Protection: IP (Ingress Protection) ratings such as (IP20, IP65, IP67, etc.) define how likely water and dirt will get into the system. The first number represents dirt and solid contaminants while the second represents water and liquids.
IP Ratings
| Solids | Liquids | |
|---|---|---|
| 1 | Protected against solids larger than 50mm. | Protected against vertically falling drops of water. Limited Ingress permitted. |
| 2 | Protected against solids larger than 12.5mm. | Protected against vertically falling drops of water with the enclosure tilted up to 15 degrees from vertical. Limited ingress permitted. |
| 3 | Protected against solids larger than 2.5mm. | Protected against spraying water up to 60 degrees from vertical. Limited ingress permitted for 3 minutes. |
| 4 | Protected against solids larger than 1mm. | Protected against water splashed from any direction. Limited ingress permitted. |
| 5 | Protected against dust. Limited ingress of dust permitted. | Will not affect operation of equipment 2-8 hours. Protected against jets of water. Limited ingress permitted. |
| 6 | Dust tight. No ingress of dust 2-8 hours. | Protected against powerful jets of water. Limited ingress permitted. |
| 7 | ______________________ | Protected against the effects of immersion in 15cm-1m for 30 minutes. |
| 8 | ______________________ | Continuous immersion in water up to 3m for long periods of time. |
| 9 | ______________________ | Protected against high pressure jets of hot water. (30 seconds) |
| 9K | ______________________ | Protected against high pressure jets of hot water. (2 minutes) |
Center Contact Material: Indicates the material composition of a coaxial connector’s inner contact.
ProductExamples
| MFR PART # | RECE.20279.001E.01 |
|---|---|
| DIGIKEY PART # | 931-1107-2-ND - Tape & Reel (TR) |
| MANUFACTURER | Taoglas Limited |
| DESCRIPTION | U.FL (UMCC), IPEX MHF1 Connector Receptacle, Male Pin 50Ohm Surface Mount Solder |
| DATASHEET | Click Here |
| MFR PART # | EMPCB.SMAFSTJ.B.HT |
|---|---|
| DIGIKEY PART # | 931-1175-ND |
| MANUFACTURER | Taoglas Limited |
| DESCRIPTION | SMA Connector Jack, Female Socket 50Ohm Board Edge, End Launch Solder |
| DATASHEET | Click Here |
| MFR PART # | 112116 |
|---|---|
| DIGIKEY PART # | ACX1000-ND |
| MANUFACTURER | Amphenol RF |
| DESCRIPTION | BNC Connector Plug, Male Pin 50Ohm Free Hanging (In-Line) Crimp |
| DATASHEET | Click Here |
| MFR PART # | 733300030 |
|---|---|
| DIGIKEY PART # | WM5387-ND |
| MANUFACTURER | Molex |
| DESCRIPTION | F Type Connector Receptacle, Female Socket 75Ohm Through Hole, Right Angle Solder |
| DATASHEET | Click Here |
MediaLinks
Videos
Molex RF Connectors – DigiKey Daily
Hirose U.FL Series Connectors – DigiKey Daily
Articles
Coaxial Adapter Fundamentals
How to Select, Use, and Maintain Coaxial Connectors for RF Applications
How to Optimize RF Connector Choices and Implementation for Military Applications
Blogs
Know the Differences Between Compatible and “Compatible” Coaxial Connectors to Avoid Costly Mistakes
TechForum
Difference between Hirose U.FL-R-SMT(10) and U.FL-R-SMT-1(10)