APD Breakdown Voltage Temperature Shift Calculator
Shift an APD breakdown voltage to operating temperature using the linear temperature coefficient model V(T)=Vref·[1+0.0011·(T-25 °C)]. Valid for reference breakdown Vref>0 V defined at 25 °C and junction temperature T in [-55, 175] °C inclusive; outside this range the 0.11%/°C linear approximation degrades. Vref is the breakdown magnitude (positive, not signed). Result is the breakdown magnitude at temperature. Device-specific tempco may vary.
Description
Shift a 25 °C APD breakdown-voltage magnitude to junction temperature with a fixed 0.11%/°C linear coefficient.
Shift an APD breakdown voltage to operating temperature using the linear temperature coefficient model V(T)=Vref·[1+0.0011·(T-25 °C)]. Valid for reference breakdown Vref>0 V defined at 25 °C and junction temperature T in [-55, 175] °C inclusive; outside this range the 0.11%/°C linear approximation degrades. Vref is the breakdown magnitude (positive, not signed). Result is the breakdown magnitude at temperature. Device-specific tempco may vary.
When to use APD Breakdown Voltage Temperature Shift Calculator
- Shift a 25 °C APD breakdown-voltage magnitude to junction temperature with a fixed 0.11%/°C linear coefficient.
- Compare fabrication or device scenarios while holding coefficients and unit conventions constant.
- Check a hand calculation before moving to a higher-fidelity process, circuit, or TCAD model.
How the calculation works
The coefficient is fractional per degree, so a 100 V device shifts by 0.11 V/°C rather than 0.0011 V/°C.
Vbr(T) = Vbr,25 · [1 + 0.0011·(T−25)] Interpreting the result
The coefficient is fractional per degree, so a 100 V device shifts by 0.11 V/°C rather than 0.0011 V/°C.
Assumptions and limitations
- APD temperature coefficients are device-specific and can be nonlinear; use the datasheet coefficient for design work.
- Use parameters measured for the same material, geometry, temperature, and operating regime whenever the result informs engineering work.