About Johanson Dielectrics
Johanson Dielectrics, Inc. are a manufacturer of high quality ceramic chip capacitors. With extensive product lines including Standard and High Voltage SMT Ceramic Capacitors, and High Voltage and High Capacitance value Ceramic Capacitors, Johanson Dielectrics is also a major supplier of SMPS devices used in power conditioning and filtering.
Technical Resources
Product Ranges
Switch-Mode Ceramic Capacitors
Switch-Mode ceramic capacitors feature large capacitance values and exhibit low ESR (equivalent series resistance) and low ESL (equivalent series inductance) making them well suited for high power and high frequency applications where tantalum or aluminum electrolytic capacitors may not be suitable. Johanson Dielectrics offers two series of these devices. The P-Series feature mechanical and pin-out configurations per DSCC 87106 and 88011 drawings while the E-Series feature mechanical and pin-out configurations more common in European design applications.
Key Features:
- P-Series Approved to DSCC Drawings 87106 & 88011 MIL-PRF-49470
- E-Series Common European Lead Styles available to MIL-PRF-49470 requirements.
- NPO & X7R Dielectrics, 50 to 500 VDC Ratings
- Low ESR / Low ESL, Ideal for SMPS Filtering Applications
- Custom Sizes, Voltages, and Values Available
Product Documentation
Mini-Switch Mode Ceramic Capacitors
Johanson Dielectrics's Mini-Switch Mode® ceramic capacitors combine the advantages of high capacitance found in tantalum capacitors with very low ESR performance of ceramic capacitors. The "J" and "L" lead configurations replace 1825 and 2225 SMT chips to provide stress relief and prevent cracking due to thermal cycling or mechanical board flexing. Another plus of the J-lead style is that this configuration allows use of the same solder lands as the SMT chips. See the Switch-Mode section for larger values. See also the Technical Notes on soldering and handling and suggested solder lands.
Key Features:
- Stress Relief from Cracking due to Thermal Cycling, TCE Mismatches or Board Flexing
- E25 to 500 VDC Ratings
- Custom Sizes, Voltages, and Values Available
- Ideal for DC-DC Power Supply Applications
General Specifications:
- Case Sizes: 0.28" x 0.27"
- Rated Voltage: 25 - 500 V
- Dielectrics Type: X7R
- Capacitance Range: 0.1 μF - 8.2μF
Commercial Switch-Mode Radial Leaded Capacitors
Key Features:
- Rated Working Voltages from 25 to 500 VDC
- Rugged Epoxy Coating Offers Increased Protection
- Compact MLC Designs Smaller Than Film or Disc
- Hi-Rel Screened Versions Available
- Custom Sizes, Voltages, and Values Available
General Specifications:
- Power Supplies
- Voltage Multipliers
- Data Isolation
- Surge Protection
- Industrial Control Circuits
- Custom Applications
200°C Rated Radial Leaded Capacitors
Key Features:
- For Use at Temperatures Up to 200°C
- Rated Working Voltages from 50V to 4KV
- Rugged Premolded Case with Hi-Temp Epoxy Fill
- Compact MLC Designs Utilizing Military Grade Ceramics
- Custom Sizes, Values, and Voltages Available
General Specifications:
- Rated Voltage: 50V - 4KV
- Dielectrics Type: NPO, X7R
- Capacitance Range: 220 pF - 3.9 μF
For use in High Temp Applications, such as:
- Oil Well Logging (Downhole)
- Geophysical Probes
- Jet Engine Controls
250°C Rated Radial Leaded Capacitors
Key Features:
- For Use at Temperatures Up to 250°C
- Rated Working Voltages from 50V to 100V
- Rugged Premolded Case with Hi-Temp Epoxy Fill
- Compact MLC Designs Utilizing Military Grade Ceramics
- Custom Sizes, Values, and Voltages Available
General Specifications:
- Rated Voltage: 50V - 100V
- Dielectrics Type: NPO, X7R
- Capacitance Range: 0.1μF 3.9 μF
For use in High Temp Applications, such as:
- Oil Well Logging (Downhole)
- Geophysical Probes
- Jet Engine Controls
High Temperature Stacked Capacitors
Key Features:
- For Use at Temperatures Up to 200°C
- Rated Working Voltages from 50V to 2KV
- Rugged Stack with Hi-Temp Lead-Attachment
- MLC Designs Utilizing Military Grade Ceramics
- Custom Sizes, Values, and Voltages Available
General Specifications:
- Rated Voltage: 50V - 2Kv
- Dielectrics Type: NPO, X7R
- Capacitance Range: 0.01μF 47 μF
For use in High Temp Applications, such as:
- Oil Well Logging (Downhole)
- Geophysical Probes
- Jet Engine Controls
High Temperature SMT Capacitors
Key Features:
- For Use at Temperatures Up to 200°C
- Rated Working Voltages from 50V to 200V
- MLC Designs Utilizing Military Grade Ceramics
- Custom Sizes, Values, and Voltages Available
General Specifications:
- Case Sizes: 0805 - 2225
- Rated Voltage: 50V - 200V
- Dielectrics Type: NPO, X7R
- Capacitance Range: 470pF - 1μF
For use in High Temp Applications, such as:
- Oil Well Logging (Downhole)
- Geophysical Probes
- Jet Engine Controls
High Voltage Radial Leaded Capacitors
Key Features:
- Rated Working Voltages from 500 to 15,000 VDC
- Rugged Epoxy Coating Offers Increased Protection
- Compact MLC Designs Smaller Than Film or Disc
- DSCC Drawing & Other Screened Versions Available
- Custom Sizes, Voltages, and Values Available
Applications:
- Power Supplies
- Voltage Multipliers
- Data Isolation
- Surge Protection
- Industrial Control Circuits
- Custom Applications
Large Form Factor Capacitor Chips
Key Features:
- Rated Working Voltages from 50 to 15,000 VDC
- Hi-Rel Screened Versions Available
- Custom Sizes, Voltages, and Values Available
Applications:
- Power Supplies
- Voltage Multipliers
- Data Isolation
- Surge Protection
- Industrial Control Circuits
- Custom Applications
