Power · Calculator

SMD Wirewound Pulse

Assess single-pulse handling capability and thermal stress for SMD wirewound resistors.

Adjust inputs and the results update automatically.

Pulse Inputs

Resistance (Ω)Pulse Energy (J)Pulse Duration (s)

Model — Adiabatic Single-Pulse

P_peak = E / t_pulse V_peak = √(P_peak × R) I_peak = √(P_peak / R)

Uses a generic adiabatic heating estimate for a representative SMD wirewound mass. Real-world capability depends on resistive element geometry, substrate, and pulse shape — consult device pulse-handling curves for production sizing.

Capability Assessment

Verdict

Within capability

Stress index: 1%

Peak Power

500.0W

Peak Voltage

223.61V

Peak Current

2.236A

Thermal Rise Estimate

1.3°C

Example Component Suggestions

Illustrative only — no real part numbers or manufacturers referenced.

Best Match

Example Component A

General-purpose, mid-range tolerance

Alternate

Example Component B

Precision class, low drift

Stretch

Example Component C

High-power, extended range