This Product Selection Guide contains information to help select products in the RF Circulators and Isolators category on DigiKey.com
RF Circulators and RF Isolators are passive devices that guide and suppress radio frequency. These are used to protect receiver circuitry. These are filtered by type, frequency range, isolation, connector type, and more.
SelectionCharacteristics
Type: Describes the physical shape/style of a product.
Frequency: Indicates the range of frequencies over which these circulators and isolators are designed for use.
Isolation: A measure of the difference of power applied to a device’s input port and the portion thereof that appears at its isolated port, when properly terminated.
Power - Average Forward: The average amount of power drawn by the product when used under manufacturer-defined test conditions.
Insertion Loss: A measure of power losses incurred by signals passing through a device, under manufacturer-defined test conditions.
VSWR: Voltage Standing Wave Ratio; a measure of how well an antenna matches the impedance of it’s intended connection medium. (Lower values are typically better)
Connector Type: Indicates the style/format of the connectors used to connect this product.
Package / Case: The protective case on an electronic component which allows for easy handling, installation, and protects the device. This is what we determined is the closest industry standard to the supplier device package. Typically, it is best to use the actual dimensions from the datasheet rather than to go by this terminology when designing your circuit.
Supplier Device Package: This is what the manufacturer calls the package of this device. They are manufacturer specific. It is typically best to use the actual dimensions from the datasheets rather than to go by this terminology when designing your circuit.
ProductExamples
| MFR PART # | CU4S0508BC-3650-00 |
|---|---|
| DIGIKEY PART # | 445-CU4S0508BC-3650-00TR-ND - Tape & Reel (TR) |
| MANUFACTURER | TDK Corporation |
| DESCRIPTION | CIRCULATOR, CU4S0508 SERIES, CCW |
| DATASHEET | Click Here |
| MFR PART # | D3I9521S |
|---|---|
| DIGIKEY PART # | 2236-D3I9521S-ND |
| MANUFACTURER | DiTom Microwave |
| DESCRIPTION | 0.95 - 2.15 GHZ ISOLATOR |
| DATASHEET | Click Here |
| MFR PART # | DMC6018 |
|---|---|
| DIGIKEY PART # | 2236-DMC6018-ND |
| MANUFACTURER | DiTom Microwave |
| DESCRIPTION | 6.00 - 18.00 GHZ CIRCULATOR |
| DATASHEET | Click Here |
MediaLinks
Videos
Isolator search
Articles
How to Quickly and Safely Switch an Antenna or Transducer Between Transmit and Receive Modes
Aggregating RF in the Automotive Environment: Architectural Choices and Antenna Solutions
How Light Speed Delivers Power Saving as well as Bandwidth in Optical Networks
Increase Safety and Reliability of High Voltage Industrial Applications with Galvanic Isolators
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Product Training Modules
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Blogs
Protect Your Test Equipment Using Digital Isolators
Why Power Choices Matter in Precision Signal Chains
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TechForum
Circulators and Isolators
Circulator search
Digital Isolators, what is Isolated Power?
Digitale Isolator-Treiber-Bausteine – Vergleich
Common Questions for isolating signal and power in a design
Selecting the right digital isolator for your design
Digital Isolator Design Under Different Voltages
Digital isolators advantages over traditional optocouplers
Bi vs unidirectional channel type? digital isolators
Common Mode Transient Immunity (CMTI) of an Isolator
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