ETPE330MA9GB

• Capacitance of 330µF with a 2.5V DC Voltage Rating
• Conductive Polymer Tantalum Solid Electrolyte
• Equivalent Series Resistance of 9 Milliohms
• Ripple Current Rating of 3.2A
• 1411 Case Size with a 2mm Height
• Operating Temperature Range of -55°C to 105°C

The ETPE330MA9GB from Panasonic is a 330µF conductive polymer tantalum solid capacitor from the POSCAP family, rated at 2.5V DC with a 20% tolerance. It has an equivalent series resistance of 9 milliohms and handles 3.2A of ripple current. The ETPE330MA9GB is supplied in a 1411 case with a 2mm height, is rated from -55°C to 105°C, and carries a 1000 hour life rating.

Conductive polymer replaces the manganese dioxide electrolyte of a conventional Tantalum Capacitor, cutting equivalent series resistance by an order of magnitude and giving a much flatter impedance curve at high frequency. That combination of high capacitance and 9 milliohm ESR makes the ETPE330MA9GB well suited to output bulk decoupling on low-voltage, high-current rails where the load steps quickly. It is used on CPU, GPU, FPGA, and ASIC core supplies in servers, networking equipment, graphics cards, and industrial computing boards. Power integrity engineers pair capacitors like this with ceramics to flatten the impedance a switching regulator presents to a fast-changing load.