RL time constant API

Computes the inductor-resistor time constant tau = L/R, the 99% settling time, and the current rise/decay percentage at an optional time. Answers 'What is the RL time constant?', 'How long until the inductor current reaches steady state?'.

Price$0.04per request

MethodPOST

Route/v1/electrical/rl-time-constant

StatusLive

MIME typeapplication/json

Rate limit120/minute

Cache0s public

electricalrltime-constantinductortransienttaucircuitsettling

API URLhttps://x402.hexl.dev/v1/electrical/rl-time-constant

Integration docs

Example request

{
  "inductanceH": 0.5,
  "resistanceOhm": 100,
  "timeS": 0.005
}

Example response

{
  "inductanceH": 0.5,
  "resistanceOhm": 100,
  "timeConstantS": 0.005,
  "timeConstantMs": 5,
  "settle99PctS": 0.025,
  "formula": "tau = L/R; I(t) = Ifinal*(1 - e^(-t/tau))",
  "timeS": 0.005,
  "currentRisePercent": 63.2121,
  "currentDecayPercent": 36.7879
}

Input schema

{
  "type": "object",
  "required": [
    "inductanceH",
    "resistanceOhm"
  ],
  "properties": {
    "inductanceH": {
      "type": "number",
      "examples": [
        0.5
      ]
    },
    "resistanceOhm": {
      "type": "number",
      "examples": [
        100
      ]
    },
    "timeS": {
      "type": "number",
      "examples": [
        0.005
      ]
    }
  }
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}