AVX (Greenville, SC) has released the new TransGuard and StaticGuard VCLD Series multilayer varistors with Sn/Pb terminations, which feature a minimum of 5 percent lead (Pb).  Designed specifically to support customers who cannot accept pure tin components in their applications, especially within the defense industry, the new VCLD Series varistors provide EMI/RFI attenuation and bi-directional overvoltage protection against transient events such as ESD, inductive switching, lightning, and nuclear electromagnetic pulses (NEMP) in a single SMT package. The new varistors feature:

  • Fast response times to ESD strikes.
  • Multi-strike capabilities.
  • High reliability.
  • Radiation resistance.
  • EMI/RFI filtering in the off-state.
  • Rating for use in temperatures spanning  –55 to +125°C.

The multilayer varistors are ideal for applications including IC protection, micro controllers, relays, I/O ports, keyboard protection, portable devices, and radios.

Features of the TransGuard VCLD Series varistors:

  • 4 cases sizes (0603, 0805, 1206, and 1210).
  • 16 working voltages (spanning 5.6 to 85VDC).
  • 13 energy ratings (spanning 0.05 to 2.0J).
  • 19 clamping voltages (spanning 18 to 150 V). 

Features of the StaticGuard VCLD Series varistors:

  • Working voltage of 18 VDC.
  • Clamping voltage of 50 V.
  • 3 case sizes (0603, 0805, and 1206) and
  • 2 energy ratings (0.05 and 0.1J).

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