80 V Hybrid polymer-aluminum caps have low ESR

The type HZA hybrid polymer-aluminum electrolytic capacitors combine the low ESR characteristics of conductive aluminum polymer capacitors with high capacitance and voltage ratings and a SMT case. Capacitance values range from 10 to 330 µF at 25 to 80 Vdc and ripple current ratings reach 2000 mA on some sizes.

When operated a rated temperature of 105°C at full voltage and full ripple current load they provide an excellent 10,000 hours lifetime. As an example, a 100 µF 50 V version (HZA277M035G24T) has an ESR of 28 mΩ and leakage of 50 µa. It comes in a 10 x 10.2 mm case and costs about $1.42 ea/500.