AVX has expanded its TPM series of multi-anode mirror design tantalum capacitors that offer robustness and feature low ESR.
The D sized TPM series 47 μF/25 V part offers low ESR of just 55 mΩ. By comparison, a single-anode part in the same package has an ESR of 100 mΩ and the E case device (same footprint, bigger case size) provides a minimum ESR of 80 mΩ. By reducing the ESR value by 30%, the new capacitors offer an improvement in filtering capability, to the extent that one part can sometimes replace two standard single-anode devices.
AVX has also developed what it says are the first mirror design multi-anode parts rated at 35 V. The TPM series D 22 μF/35 V is suitable for use in circuits with high current and voltage spikes where the profile is limited to just 3 mm. It is suitable for automotive battery applications running on 12/14 V with low impedance, where it offers enhanced robustness and low ESR. Since the D and E case sizes use an identical footprint, the pad design does not need to be changed if the D-case part can be used to replace the larger capacitor. For higher operating voltages, the TPM D 10 μF/50 V with an ESR of 140 m is also available.
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