SIM200-xKx

The Sensata SIM200 is the next-generation Insulation Monitoring Device (IMD) officially launched by Sensata Technologies on March 24, 2025, within their Clean Energy Solutions portfolio. Built on top of the SIM100 family (SIM100MOD, SIM100MLP); uses the same patented signal injection technology (algorithm acquired with Sendyne's 2021 acquisition by Sensata), but offers much broader voltage coverage and an expanded feature set. Key innovations over SIM100 4 voltage classes — xNx (1500V), xKx (1000V), xPx (500V), xQx (100V) — broader coverage than SIM100MOD (3 classes) and SIM100MLP (3 classes), especially in the 60-500V low-voltage range. Configurable thresholds — Warning level + fault threshold (default 100Ω/V) + CAN ID can be programmed by the customer. Dedicated digital fault state output — 1× digital out + 1× PWM out — fault/warning signaling without dependence on the CAN bus. Separate path for ECU/system safety layer. Internal IMD error output — Separate digital signaling when the module itself fails — reduces "silent fault" risk. UL2231 recognized — On UL's official recognized safety standard list. Patented technology SIM200 uses Sendyne's patented signal injection and dynamic self-calibration algorithm (US Pat. 8,373,408 · 8,350,552 · 8,289,030). The algorithm injects small voltages onto positive and negative high-voltage rails through isolation resistors, detecting both resistive leakages and capacitively stored energy. Operates even when the system is inactive. 4 voltage class details xNx — Application Voltage 1363 V (max 1568 V), Measurement Range ±1652 V, Input Impedance 2720 kΩ, Total Y-Cap 1.2 µF (max 4.2 µF). xKx — Application Voltage 1000 V (max 1150 V), Measurement Range ±1186 V, Input Impedance 2720 kΩ, Total Y-Cap 1.2 µF (max 4.2 µF). xPx — Application Voltage 510 V (max 582 V), Measurement Range ±608 V, Input Impedance 1000 kΩ, Total Y-Cap 4.2 µF (max 14.2 µF). xQx — Application Voltage 140 V (max 161 V), Measurement Range ±167 V, Input Impedance 272 kΩ, Total Y-Cap 6.2 µF (max 14.2 µF). Performance (response times) Initial isolation estimate: 4.5 – 5.5 seconds (system startup) Warning condition response (500 Ω/V): 4.3 – 5 seconds Fault condition response (100 Ω/V): 5.3 – 5.8 seconds Short condition detection: Max 6.5 seconds Measurement update period: 250 ms (SIM100 uses 500 ms — 2× faster) Typical applications DC fast charging stations (50-350 kW, megawatt mega charging) EV, hybrid vehicles, and commercial electric vehicle power systems Modern 800V EV platforms (Porsche Taycan, Hyundai Ioniq 5, Kia EV6) — xKx class 1500V mega-watt energy storage systems (ESS) — xNx class 500V industrial DC systems — xPx class 48V/96V auxiliary and low-voltage EVs — xQx class