Automotive Relays

Millennium Semiconductors – Authorized Distributor for Hongfa, TE Connectivity & Panasonic for automotive relays

Overview of Automotive Relays

Automotive relays are essential components that control high-current circuits using low-power signals. Designed to withstand harsh environments, they are widely used across automotive applications such as engine management, lighting, climate control, infotainment, and electric drive systems etc.

At Millennium Semiconductors, we deliver a comprehensive range of automotive-grade relays from global leaders – Hongfa, TE Connectivity, and Panasonic – trusted by top OEMs and Tier-1 suppliers.

Why Automotive Relay Matters?

• Efficient Power Control: Enable reliable switching of high-current loads while protecting sensitive components.
• Compact & Durable: Designed for space-constrained environments with robust sealing against vibration, moisture, and temperature changes.
• Enhanced Safety: Supports functional safety requirements in critical automotive systems

Key Features of Automotive Relay

• Wide current & voltage ratings (10A to 300A)
• PCB, plug-in, and screw-terminal types available
• Low coil power consumption
• High contact reliability and arc suppression
• Automotive-grade approvals – AEC-Q200, ISO/TS 16949
• Sealed & open-frame options for different environments

Applications of Automotive Relay

• Powertrain Control Systems
• Lighting & Interior Electronics
• HVAC & Climate Control
• EV Battery Management & Charging
• Telematics & Infotainment
• ADAS and Autonomous Driving Modules

Top Automotive Relay Brands We Distribute

• Hongfa: One of the world’s largest relay manufacturers, offering high-reliability solutions for EVs, PHEVs, and ICE vehicles.
• TE Connectivity: Renowned for compact, rugged, and versatile relays used in safety-critical automotive applications.
• Panasonic Relay: Innovative relays with advanced arc control, high thermal performance, and compact designs ideal for miniaturized modules.