This Product Selection Guide contains information to help select products in the Mica and PTFE Capacitors category on DigiKey.com
Capacitors incorporating mica or PTFE (Teflon®) dielectrics are used in applications that require good parametric stability, low losses, and a relatively high voltage rating. In an electrostatic (non-polarized) capacitor type, the tradeoff for these desirable characteristics is relatively high cost and a limited range of available capacitance values, generally of a few tens of nanofarads or less.
SelectionCharacteristics
Capacitance: A measurement of the device’s ability to store an electrical charge. It is measured in Farads (F) and uses the metric system for values.
Tolerance: Characterizes the extent of permitted variability of overall device value among samples of a given part number, resulting from variations in manufacturing.
Voltage - Rated: Typically this represents the maximum voltage rating to which a device will meet its given specifications. Exceeding this voltage rating may damage the device and other system components.
Dielectric Material: A material that is an efficient supporter of electrostatic fields. It can either be an insulator or a poor electrical conductor.
Operating Temperature: Recommended operating temperature, typically given in a range or as a maximum. Exceeding these temperatures may affect performance or damage the device and other system components.
Mounting Type: Identifies how the device is attached.
Package / Case: Indicates the type of protective case used on an electronic component to allow easy handling, installation, and protection. This selection was determined to be the closest industry standard applicable to the supplier’s device packaging. Typically it is best to check the actual dimensions from the datasheet rather than depend on this terminology when designing your circuit.
Lead Spacing: Indicates the center-to-center spacing between adjacent leads.
Features: These are different capabilities or properties of the device such as high frequency or low loss.
Size / Dimension: The physical dimensions of the main body of the device. Typically listed as length x width.
Height - Seated (Max): Indicates how far the device will extend above the surface to which it has been attached.
ProductExamples
| MFR PART # | 27130B182JO0 |
|---|---|
| DIGIKEY PART # | 27130B182JO0-ND |
| MANUFACTURER | Cornell Dubilier Electronics (CDE) |
| DESCRIPTION | 1800 pF Mica Capacitor 3 kV Rectangular Box |
| DATASHEET | Click Here |
| MFR PART # | 294300B102JO2 |
|---|---|
| DIGIKEY PART # | 338-3471-ND |
| MANUFACTURER | Cornell Dubilier Electronics (CDE) |
| DESCRIPTION | 1000 pF Mica Capacitor 30 kV Axial, Can |
| DATASHEET | Click Here |
| MFR PART # | MC22FF152J-TF |
|---|---|
| DIGIKEY PART # | 338-4455-2-ND - Tape & Reel (TR) |
| MANUFACTURER | Cornell Dubilier Electronics (CDE) |
| DESCRIPTION | 1500 pF Mica Capacitor 1 kV 2220 (5750 Metric) |
| DATASHEET | Click Here |
| MFR PART # | CD19FD102JO3F |
|---|---|
| DIGIKEY PART # | 338-2597-ND |
| MANUFACTURER | Cornell Dubilier Electronics (CDE) |
| DESCRIPTION | 1000 pF Mica Capacitor 500 V Radial |
| DATASHEET | Click Here |
| MFR PART # | 29280B222JO0 |
|---|---|
| DIGIKEY PART # | 338-3370-ND |
| MANUFACTURER | Cornell Dubilier Electronics (CDE) |
| DESCRIPTION | 2200 pF Mica Capacitor 8 kV Disk, Metal Fitting - Threaded |
| DATASHEET | Click Here |
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MediaLinks
Videos
Cornell Dubilier MC and MCN RF Capacitors | Digi-Key Daily
Articles
What Is a Capacitor and What Are the Different Types?
TechForum
Mica/PTFE Capacitors