Vishay VJ HIFREQ HT Surface-Mount MLCCs for High Temperature Operation to 200 °C
Devices Provide High Q and Low ESR for Telecom Base Stations and Military Communication Systems
The News:
Vishay Intertechnology introduces VJ HIFREQ HT, the industry’s first surface-mount multilayer ceramic chip capacitors (MLCCs) for high frequency RF and microwave applications to offer an operating temperature range to +200 °C.
• Provides ultra high Q and low ESR in four compact case sizes
• Based on an ultra stable ceramic dielectric
• Offer a high serial resonant frequency (SRF) and parallel resonant frequency (PRF)
• Broad working voltages from 50 V to 500 V
• Wide capacitance range from 0.1 pF to 3.3 nF, with tight tolerances to ± 0.05 pF
• Excellent aging rate of 0 % per decade and high ESD withstand capabilities to protect against high voltage transients
Product Benefits:
• High frequency, high temperature operation to 200 °C
• Made with a combination of design, materials, and tight process control to achieve very high field reliability
• Ultra-stable dielectric material
• Choice of case sizes: 0402, 0603, 0805, 1111
• Surface-mount, wet build process
• Termination options include non-magnetic copper, Lead (Pb)-free, and tin / lead
• Epoxy for conductive adhesive mounting option
• Reliable Noble Metal Electrode (NME) System
The Key Specifications:
Market Applications:
• RF and microwave
• Broadband communications
• Satellite communications
• Base stations
• Medical instrumentation and test
• Military devices (radar, communication, etc.)
• Wireless devices
The Perspective:
For high power communication transmitters and high frequency inverters exposed to temperatures of +175 °C or higher, designers previously had to rely on MLCCs only qualified to +150 °C. With their operating temperature range from -55 °C to +200 °C, the VJ HIFREQ HT devices provide reliable, long term performance in these applications. For increased design flexibility, the MLCCs’ small 0402, 0603, 0805, and 1111 case sizes allow for placement close to components with high dissipation, such as SiC and GaN switches.
Availability:
Samples of the VJ HIFREQ HT series are available now. Production quantities are available with lead times of nine weeks.
