LV 124 is a quality and reliability test standard jointly established by German automotive manufacturers in 2013. This standard covers tests for electric and electronic components for use in motor vehicles.
The standard consists of Part I: electrical requirements and tests and Part II: environmental requirements and tests.
LV 124 is required for all supplies of German OEMs.
Espec provides products that perform tests that are unique to LV124, including condensation tests with assemblies and life/temperature cycle tests.
| Voltages and currents |
| VN |
Nominal voltage |
| VBmin |
Lower operating voltage limit |
| VB |
Operating voltage |
| VBmax |
Upper operating voltage limit |
| Vmax |
Maximum voltage that may occur during a test |
| Vmin |
Minimum voltage that may curry during a test |
| VPP |
Peak-peak voltage |
| Veff |
RMS value of a voltage |
| Vtest |
Test voltage |
| IN |
Nominal current |
| GND |
Device ground |
| VA, VT, VS, VR |
Voltage level of the start voltage pulse |
| Times/durations |
| tr |
Rise time (e.g., of a voltage curve) |
| tf |
Fall time (e.g., of a voltage curve) |
| Temperatures |
| Tmin |
Minimum operating temperature |
| TRT |
Room temperature |
| Tmax |
Maximum operating temperature |
| Ttest |
Test temperature |
| Tolerances & Standard Values |
| Frequencies |
±1% |
| Temperatures |
±2 °C |
| Humidity |
±5% |
| Times/durations |
+5%; 0% |
| Voltages |
±2% |
| Current |
±2% |
| Room Temperature |
TRT = 23 °C ± 5 °C |
| Humidity |
Hrel = 25% to 75% relative humidity |
| Test Temperature |
Ttest = TRT |
| Operating Voltage |
VB = 14 V |
| Source Impedance Ri |
Ri ≤ 100 mΩ (E6) Ri < 30 mΩ / 100 mΩ (E15) |
