Quality Components are Essential for Reliable Operation of a Battery Disconnect Unit
Innovative Battery Management System Components from Panasonic
Panasonic is proud to be at the forefront of developing advanced safety and high-quality components for the automotive industry including battery disconnect units (BDU) and Battery Management Systems (BMS). To ensure reliable and efficient operation, Panasonic Industry provides robust EV relays (DC contactors), automotive-grade passive components, and connectors for designing sophisticated control circuitry and precise monitoring systems that the BDU and BMS require. EV relays are responsible for opening and closing the circuit between the battery and the vehicle, while the control circuitry ensures proper sequencing and timing of the disconnection process. The monitoring systems provide real-time feedback on the status of the battery and the disconnection process.
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Compact Design with High DC Cutoff Relays
Introducing the cutting-edge EV-A Series Automotive Relay from Panasonic, a global leader in Relay Products. This innovative 250A @ 500V DC Contactor boasts a remarkably compact and lightweight design, making it a standout choice for high voltage DC applications. With an impressive 8,000A short circuit current rating and a high cut-off capability of 1,800A @ 500VDC, this Automotive Relay is ideal for Electric Vehicles and DC Charging Stations. Trust Panasonic to deliver reliability and performance in the automotive industry.
Ensuring Safe Power Control in EV Battery Systems
Automotive Connectors for Battery Disconnect Units
CF1-Board to FPC, 4/6/10 Pins, 2.0A/Pin, Connector
Introducing the CF1 Series, a cutting-edge 2.2mm pitch connector designed for Board-to-FPC automotive applications. Engineered to withstand the rigors of the automotive environment, it boasts exceptional vibration and heat resistance up to 125℃. The innovative "Anti-misoperation bridge structure" ensures secure mating, preventing unintended operation of the mating lock. With the CF1 Series, FPCs and boards can be directly connected without the need for relay wiring harnesses, streamlining the assembly process. Its double-sided contact structure ensures reliable contact, while the inertia lock construction prevents half-mating with 4 pins only. Trust the CF1 Series for unparalleled performance and durability in automotive applications.
CF2 - Board to FPC 20/28 Pin, 1.0A/Pin Connector
Introducing the next-generation automotive connector with 20 and 28 pins, designed to meet the demands of harsh automotive applications. With a rated current of 1.0A per pin and a rated voltage of 50V DC, it delivers robust performance in high-shock, high-vibration, and high-temperature environments, with heat resistance up to 125°C. The double-sided clip contact structure ensures strong mechanical shock and vibration resistance, making it ideal for automotive applications with stringent requirements. This connector offers a simple and lightweight solution, enabling easy FPC and board connections without needing relay wiring harnesses. The connector position assurance (CPA) function also eliminates mating failure, ensuring reliable and secure connections.
AECQ Certified Components for Battery Disconnect Unit
Small Package Size. Fast-Switching PhotoMOS Relay
Automotive Surface Mount Power Inductors
High-Power / Anti-Surge / High-Voltage Chip Resistors
Thin Film Chip Resistors, High Voltage Type
Experience high reliability with our thin film series resistors, engineered to excel under extreme conditions. With a temperature range of -55°C to +155°C and stability at 85°C 85% RH rated load these resistors offer steadfast performance in harsh environments. Panasonic's thin-film process ensures high accuracy, with low resistance tolerance and temperature coefficient, resulting in superior performance with low current noise and excellent linearity, while our unique durable design provides high ESD resistance, guaranteed at 4 kV. The thin film resistors feature high resistance to sulfurization, and comply with IEC 60115-8, JIS C 5201-8, JEITA RC-2134V, AEC-Q200, and RoHS standards.
Powering Reliability: Panasonic's Hybrid Capacitors for Battery Disconnect Units (BDU)
Panasonic's cutting-edge Hybrid Aluminum Electrolytic Capacitors are engineered to excel in the most demanding conditions. With an endurance of 2,000 hours at 145°C, these high-temperature capacitors offer unparalleled performance in high engine temperature environments, ensuring safety and reliability. Featuring a nominal capacitance range of 10µF up to 1000µF and voltage ranges from 25VDC up to 80VDC, these capacitors deliver exceptional functionality across a wide spectrum of automotive applications. Their low ESR, high ripple current, and AEC-Q200 compliance make them the ideal choice for power and battery decoupling, input/output filtering in power converters and voltage regulators, and clock circuitry. With an operating temperature range of -55°C up to 145°C, these capacitors are designed to withstand extreme conditions, making them perfect for automotive, server, base station, and industrial PC applications. Trust in Panasonic's Hybrid Capacitors for unmatched endurance, reliability, and quality, ensuring optimal performance in critical automotive systems.
Enhancing EV Charging Safety with Sealed Snap Action Switch Technology
Panasonic’s ASQD1 Seal Type Snap Action Switch Series is a compact, highly reliable solution designed for precision detection and enhanced safety in demanding environments. The series integrates advanced configurations such as failure detection, two-step detection, and redundancy types, embedding dual internal circuits within a single switch to monitor connection status and identify both internal and external faults. This design reduces component count, simplifies wiring, and improves system reliability, while its sealed construction (IP67 protection) ensures stable performance in harsh conditions including moisture, dust, vibration, and temperature extremes.
In battery management system (BMS) applications, these switches are well suited for critical safety and monitoring functions such as pack enclosure detection, interlock signaling, and fault detection within battery disconnect units (BDUs). The built-in redundancy and precise switching capability enable reliable position sensing and fail-safe operation, helping ensure proper sequencing of high-voltage connections and rapid fault response. By combining compact design, environmental robustness, and integrated circuit redundancy, Panasonic’s snap action switches support safer, more efficient, and space-optimized BMS architectures in EV and energy storage systems.
