Syfer StackiCap MLCC Capacitors
Knowles Capacitors / Syfer StackiCap MultiLayer Ceramic Capacitors (MLCCs) are designed to provide high Control Voltage (CV) in compact packages. These MLCCs, if combined with FlexiCap stress-relieving terminations, can replace film and tantalum capacitors. The StackiCap MLCCs feature a maximum dielectric withstand voltage of 50mA and a temperature coefficient of capacitance of ±15% from -55˚C to +125˚C. Typical applications include power supplies, lighting, aerospace electronics, and high voltage applications where a large amount of capacitance is required.
Features
- FlexiCap termination technology
- High capacitance and voltage density
- Lead-free X7R dielectric
- Monolithic HV MLCC design
- Reduced size and system cost
- RoHS and REACH compliant
- Stress relief layers for crack resistance
Applications
- Aerospace electronics
- DC-DC converter
- Lighting
- Switch mode power supplies
- Tank and snubber
- Voltage multipliers
Technical Specifications
| Parameters | Values |
|---|---|
| Ageing Rate | <2% per decade |
| Dissipation Factor | ≤0.025 |
| Insulation Resistance (IR) | 100GΩ or 500s(whichever is the less) |
| Maximum Capacitance | 5.6µF |
| Maximum Dielectric Withstand Voltage | 50mA (voltage applied for 5±1s) |
| Temperature Coefficient of Capacitance | ±15% from -55˚C to +125˚C |
Video
This TTI Tech Specs video for Knowles StackiCap X7R MLCCs explains that StackiCap Surface Mount MLCCs feature a unique patented construction and Knowles FlexiCap terminations to deliver high CV in compact packages. The capacitors can replace film or tantalum capacitors to reduce weight and PCB area in applications such as power supplies or tank and snubber circuits. StackiCap MLCCs are offered in case of sizes from 1812 to 3640 covering capacitance values up to 5.6 microfarads and voltage ratings up to 2000 volts, with additional sizes in development.
See the video transcript below
Video Transcript
I went to an engineering magic show once and this engineer pulls out two capacitors, says things like Abraca-stacka and Ala-capacitor, then smashed them together into one stacked capacitor. Was it really magic? No, just a quick switch to show us a Knowles StackiCap capacitor. StackiCap surface mount MLCCs feature a unique patented construction and Knowles FlexiCap terminations to deliver high CV in compact packages.
The capacitors can replace film or tantalum capacitors to reduce weight and PCB area in applications such as power supplies or resonance tanks and snubber circuits. StackiCap MLCCs are offered in case of sizes from 1812 to 3640 covering capacitance values up to 5.6 microfarads and voltage ratings up to 2000 volts, with additional sizes in development. The capacitors have an X7R dielectric for stable operation up to 125 degrees Celsius, and AEC-Q200-qualified variants are available.
