Bourns ZV & ZVHT SMD Low-Voltage Varistors

Bourns ZV and ZVHT SMD Low-Voltage Varistors are designed to replace larger surface-mount TVS Zener Diodes in many applications. Two types are available, ZV (Low Voltage) and ZVHT (Low Voltage, High Temperature). The varistors protect sensitive electronic devices against high-voltage surges in the low-voltage region. The series offers excellent transient energy absorption due to improved energy volume distribution and power dissipation. The components cover a wide DC operating voltage range from 3V to 170V. The varistors also exhibit independent suppression characteristics enabling stable protection over a wide temperature range of -55°C to +125°C (ZV) and -55°C to +150°C (ZVHT). Bourns ZV and ZVHT applications include the protection of integrated circuits and other components at the circuit board level.


  • Formerly a KEKO-Varicon product
  • Six model sizes available - 0603, 0805, 1206, 1210, 1812, 2220
  • Broad range of current- and energy-handling capabilities
  • Short response time
  • Low sensitivity to mildly activated fluxes
  • Maximum continuous operating temperature
    • +125°C ZV
    • +150°C ZVHT
  • RoHS compliant


  • Suppression of inductive switching or other transient events such as surge voltage at the circuit board level
  • ESD protection to IEC 1000-4-2, MIL-STD 883C Method 3015.7, and other industry specifications
  • Replaces larger surface-mount TVS Zener Diodes
  • Electromagnetic compliance of end products
  • On-board transient voltage protection of ICs and transistors



Publicado: 2020-01-30 | Actualizado: 2022-03-11