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Litz Wire Skin Depth (δ), Proximity Effect & AC Resistance Ratio (R_ac/R_dc) Calculator

Easily calculate and compute litz wire skin depth (δ), proximity effect & ac resistance ratio (r_ac/r_dc) calculator with accurate equations, live formulas, and expert guidance.

Conductor current frequency.

AWG size of individual isolated strands (e.g., 38, 40, 44 AWG).

Number of parallel insulated strands twisted in bundle.

Physical wire length.

Calculated Result
170.7 µm

Copper Skin Depth (δ)

Copper Skin Depth (δ)

170.7 µm

Copper Skin Depth Um

170.7

Strand Diameter Um

100.7

Strand Diameter To Skin Depth Ratio

0.59

Dc Resistance Ohms

0.063

170.7 — µm

Calculation Breakdown

  1. Applied FormulaCalculates high-frequency skin depth in copper and validates litz wire strand gauge selection to suppress skin effect and proximity loss in power inductors.\delta = \sqrt{\frac{1}{\pi f \mu_0 \sigma}}, \quad R_{ac} = R_{dc} \left[ F(\xi) + \frac{N^2 - 1}{3} G(\xi) \right]

Litz Wire AC Resistance Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.04385128171Copper Skin Depth (δ)

What Is the Litz Wire Skin Depth (δ), Proximity Effect & AC Resistance Ratio (R_ac/R_dc) Calculator?

This tool computes litz wire skin depth (δ), proximity effect & ac resistance ratio (r_ac/r_dc) calculator with high precision arithmetic.

How Does the Litz Wire Skin Depth (δ), Proximity Effect & AC Resistance Ratio (R_ac/R_dc) Calculator Work?

Calculates high-frequency skin depth in copper and validates litz wire strand gauge selection to suppress skin effect and proximity loss in power inductors.

Litz Wire Skin Depth (δ), Proximity Effect & AC Resistance Ratio (R_ac/R_dc) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

δ=1πfμ0σ,Rac=Rdc[F(ξ)+N2−13G(ξ)]\delta = \sqrt{\frac{1}{\pi f \mu_0 \sigma}}, \quad R_{ac} = R_{dc} \left[ F(\xi) + \frac{N^2 - 1}{3} G(\xi) \right]

Calculates high-frequency skin depth in copper and validates litz wire strand gauge selection to suppress skin effect and proximity loss in power inductors.

How to Use the Litz Wire Skin Depth (δ), Proximity Effect & AC Resistance Ratio (R_ac/R_dc) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Litz Wire Skin Depth (δ), Proximity Effect & AC Resistance Ratio (R_ac/R_dc) Calculator Example

Input Values:

operatingFrequencyKhz:150
singleStrandAwg:38
numberOfStrandsN:120
conductorLengthM:3.5
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required µm.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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