KEMET HRA T540/T541 Series High Reliability Capacitors

KEMET's HRA T540/T541 Series High Reliability Capacitors are solid electrolytic capacitors with a conductive polymer cathode capable of delivering very low ESR and improved capacitance retention at high frequencies. KO-CAP combines the low ESR of multilayer ceramic, aluminum electrolytic's high capacitance, and tantalum's volumetric efficiency into a single surface mount package. The HRA Polymer Electrolytic offers the same performance advantages as other KO-CAP series with screening options associated with high reliability (Hi-Rel) applications. These HRA-grade components offer several surge current screening options. The recommended application derating for these capacitors is 10 – 20%, rendering them suitable for application voltages from 2.5 to 63 VDC.

Features

• 100% accelerated steady-state aging
• 15 Years heritage in defense and aerospace applications
• Approved for DLA Drawing 04051/04052
• B, C, and D failure rates available
• Black color epoxy available
• Customized screening availability
• DLA Drawing 04052 Part Numbers with Surge Current Option B are approved under ESA/EPPL part 2
• EIA standard case sizes
• Group A & Group C as per MIL-PRF-55365 & MIL-PRF-32700 available
• High efficiency for decoupling and filtering offering high stability on control loop response
• High-frequency capacitance retention
• Humidity capability improved at 85°C/85% RH, 1.0 V_R
• Radiation data available up to 200K Rads
• Reference design in multiple Radiation hardened DC converters
• Surge current testing options (as per MIL-PRF-32700)
• Ultra-low ESR values down to 5 mΩ

Applications

• Energy solutions/Hold-up applications
• Highest performance for Vdd bias in high power amplifiers (HPA) in RF emitters (RADAR/AESA)
• Highest performance for Vdd bias in low noise amplifiers (LNA) in RF receivers (RADAR/AESA/Jamming modules)
• Input/Output filtering for defense modules (terrestrial/maritime/avionic) up to 48V's
• Input/Output filtering for space modules up to 28V's
• The ESR/Z performance over frequency offers the highest efficiency associated with bulk capacitance and filtering and/or decoupling function
• The ripple current capability, driven by the low ESR level of the capacitor, offers the highest performance for point of load architecture

Technical Specifications