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Cx Family Common Mode Chokes
0402CT Low Profile Chip Inductors
XAL7050 High-inductance Shielded Power Inductors
XGL4020 Ultra-low DCR Power Inductors

Application example

for Hexa-Path – Inductors

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Formulas used to calculate electrical characteristics

Connecting windings in series:

Connecting windings in parallel:

Inductors – using multiple windings

Part number Inductance (µH) Percent Tolerance DCR max (Ω) Volt-time product (V-µs) Peak energy storage (µJ) Isat (A) Irms (A)
HP3-0138L 11.2 20 0.055 30.4 1.656 0.65 1.73
 
Connecting windings in series:
For higher inductance, the windings (Wn) can be connected in series. As inductance increases, energy storage and Irms remain the same, but DCR increases and Isat decreases.

Example: Calculate new electricals for HP3-0138L with four windings (Wn) connected in series:
  • Inductance = Inductance(table)× Wn2 = 11.2 × 42 = 179.2 μH
  • DCR = DCR(table)  × Wn = 0.055 × 4 = 0.22 Ohms
  • Isat = (Isat(table)  × 6) ÷ Wn = (0.65 × 6) ÷ 4 = 0.975 A
  • Irms = Irms(table) = 1.73 A
hexa-p1.gif
 
Connecting windings in parallel:
To increase current ratings, the windings (Wn) can be connected in parallel. DCR decreases, current ratings increase, and inductance remains the same.

Example: Calculate new electricals for HP5-0083L, with three (Wn) windings connected in parallel (equivalent to one winding in series):
  • Inductance = Inductance(table) = 11.2 μH
  • DCR = 1 ÷ [Wn × (1 ÷ DCR(table))] = 1 ÷ [3 × (1 ÷ 0.045)] = 0.015 Ohms
  • Isat = (Isat(table) × 6) ÷ Wn = (0.65 × 6) ÷ 1 = 3.9 A
  • Irms = Irms(table) × Wn = 1.73 × 3 = 5.19 A
hexa-p2.gif