Pugeot E-208, Corsa E, etc. battery pack.

Discussion about components from Ampera/Bolt and the PSA group which owns Opel these days
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manny
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Re: Pugeot E-208, Corsa E, etc. battery pack.

Post by manny »

Digging through the electronics modules from the battery, I found the precharge circuit. I found it interesting because it uses PTC thermistors.
20250208_101139.jpg
The PTC's are C1412by TDK rated for 620V and 120ohm. The relay is V23700-C0001-A408 made by TE Connectivity 450V and 20A.

The PTC's are arranged in 2S7P making it a 34.3 ohm precharge resistor.

If there is a short on the HV when precharging the PTC's will dissipate 4700W @400V 11.7A. This will heat up the PTC's real quick, and that will lower the current. A normal resistor will not survive for long in this situation.
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PTC_ICL_Leaded_Disks_C1412_C1451_C75-525567.pdf
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Citroen Saxo electrique [first drive]
  • Volvo ERAD motor, XC90 inverter/DCDC (custom OI board)
  • PSA battery (50kWh)
  • Foccci and MG ZS charger 6.6kW
  • Zombie VCU
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