Transformers - LPE-3325-CST Series

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LPE-3325-CST Buy Now

Vishay Dale LPE-3325-CST series of surface-mount, current-sensing transformers features five standard turns ratios from 30 to 125 in a lead (Pb)-free construction.

Designed to provide optimal performance at frequencies of 100 kHz and greater, the new LPE-3325-CST is intended for switching power supplies, ac current detection, and output supplies for control circuitry in household appliances and medical and office equipment.

Available with turns ratios of 30, 40, 50, 70, and 125, this transformer features secondary inductance ranging from 180 µH to 3000 µH at 100 kHz and 0.1 V and a maximum secondary resistance range of 1.00 Ω to 7.70 Ω. All five configurations are rated for 6 A.

Each transformer measures 0.265 in. by 0.323 in. [6.73 mm by 8.20 mm], with a 0.205-in. [5.21-mm] height profile. Custom configurations are available on request. These transformers are specified for an operating temperature range of -40°C to +130°C and are compatible with surface-mount process temperatures.


  • Surface mount design
  • Compatible with surface mount process temperatures
  • Designed for switching supply applications
  • Optimal performance at 100 kHz and above
  • Five standard turns ratios
  • Custom Designs available
  • Lead (Pb)-free construction


  • Switching power supplies
  • AC current detection
  • Output supply for control circuitry
  • Appliances
  • Medical equipment
  • Office equipment