30057 - Ignition Coil Driver Transistor for Hyundai Elantra ECU Engine Control Unit
Original 30057 - High-Power Ignition Coil Driver Transistor for Engine Control Unit (ECU)
The 30057 is a high-performance ignition coil driver power transistor. It is specifically engineered for use in automotive engine control units (ECUs). This device plays a critical role in generating the precise spark timing required for optimal combustion in modern gasoline engines. Featuring a TO-263 surface-mount package with an integrated metallic heat sink, it bridges the gap between the low-voltage logic of the ECU microcontroller and the high-energy demands of the ignition coils.
🔧 Engine Control Unit Application
This ignition driver transistor is a core power stage component found on the mainboard of many automotive ECUs. Its primary function is to act as a high-speed switch. When it receives a low current signal from the engine processor, the 30057 allows a much larger current to flow through the primary winding of the ignition coil. When the processor cuts this control signal, the 30057 rapidly switches off, collapsing the magnetic field in the coil and generating a high-voltage spark at the spark plug. A failing driver here will result in weak spark, misfires, hesitation under load, or a complete "crank but no start" condition.
⚡ High-Power Handling in a Compact Form
The 30057 is housed in a TO-263 surface-mount package (also known as D2PAK), which is optimized for automated PCB assembly. A metallic heat sink is seamlessly integrated into the encapsulation, allowing efficient heat dissipation for prolonged operation in automotive environments. This design ensures the component can handle the repeated thermal and electrical stress of firing ignition coils without premature failure.
💡 Technical Specifications
Package Type: TO-263 (3-pin surface-mount with metallic heat sink)
Current Rating: Up to 3A continuous current handling
Voltage Rating: 60V to 100V, compatible with standard automotive electrical systems
Thermal Management: Integrated metallic heat sink for efficient heat dissipation
Encapsulation Material: Black plastic with Cu heat sink for corrosion resistance and durability
Mounting: Surface-mount technology (SMT) for high-density PCB layouts
🛡️ Automotive-Grade Reliability
The 30057 is manufactured to meet the rigorous quality standards of the automotive industry. Designed specifically for harsh under-hood conditions, it withstands high vibration, extreme temperature fluctuations, and thermal stress. The metallic heat sink encapsulation ensures the component maintains its integrity and performance even in demanding electrical environments, providing long-term durability in the engine control system.
🔌 Known Applications
Due to overheating and electrical stress, the 30057 is a common failure point in certain ECU models. Known to be a susceptible component in the following ECUs:
Hyundai Elantra Engine Control Module (ECM) / M798 computer board
Hyundai i30 (Avante) Powertrain Control Module
Kia Cerato / Forte Engine Management System
Bosch ME2.8, ME7 Series ECUs
Mercedes-Benz, VAG (Volkswagen Audi Group), and BMW engine control modules
Our 30057 is manufactured to OEM specifications, ensuring drop-in compatibility with your existing unit. If you are experiencing a misfire, hesitation, stalling, or loss of power on cylinder 1, 2, 3, or 4, it is highly likely you have a failed ignition driver transistor in your ECU.
🚀 Application Extension
While the 30057 is best known as a known replacement for failing ECU ignition coil drivers, its robust design also makes it suitable for driving solenoids and other medium-power inductive loads within the engine bay and body control modules.
Purchase the 30057 ignition driver transistor for your professional automotive ECU repairs, engine management system diagnostics, or for restocking your automotive electronics inventory. Bulk wholesale pricing is available for ECU remanufacturers, repair shops, and component distributors. Fast shipping worldwide from our European and US warehouses.