• Very low dynamic impedance at low currents: approximately 1⁄20 of conventional series • Hard breakdown knee • Low noise: approximately 1⁄10 of conventional series • Total power dissipation: max. 250 mW • Small tolerances of VZ • Working voltage range: nominal 5.00 to 6.80 V • Non-repetitive peak reverse power dissipation: maximal 30 W. • Low current, low power, low noise applications • CMOS RAM back-up circuits • Voltage stabilizers • Voltage limiters • Smoke detector relays. • Low-voltage avalanche regulator diodes