Panasonic Releases ETQ-P4MR47KVK Low-Profile Automotive Power Inductor with 22.5 A Rating and 155 °C Operation

Panasonic has introduced the ETQ-P4MR47KVK, a surface-mount power choke coil in the ETQ-P4MR47KVK (Low Profile) series for automotive applications.

The inductor measures 8.5 × 8.0 × 4.0 mm and is designed for direct mounting on engine ECUs.

Key specifications:
- Inductance: 0.47 µH
- Rated current: 22.5 A (based on 40 K temperature rise)
- Heat resistance: 155 °C for 2000 hours
- Vibration resistance: 5 Hz to 2 kHz at 5 G
- Thermal radiation constant: approximately 36 K/W (measured)
- Mounting: reflow soldering on multilayer PCB

The part supports mechatronics applications and is intended for power circuits in compact automotive ECUs.