KA78R12 12V Low Dropout Voltage Regulator TO‑220 Package

KA78R12: 12V Low Dropout Voltage Regulator for Precision Power Supply Applications

The KA78R12 is a 12V Low Dropout Voltage Regulator that offers precise and stable output with low dropout performance, making it suitable for a wide range of regulated DC power applications. Designed to provide a fixed 12 V output with excellent line and load regulation, the KA78R12 features built-in current limiting, thermal shutdown, and safe area compensation. It is ideal for microcontroller systems, audio/visual equipment, and other electronics requiring a regulated 12 V source.

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Features of KA78R12 Voltage Regulator

• Fixed 12V output voltage
• Low dropout voltage (typically 0.5V to 1.0V)
• Built-in current limiting and thermal protection
• Internal short-circuit protection
• Excellent line and load regulation
• Suitable for high-accuracy voltage regulation applications

Specifications of KA78R12 Voltage Regulator

• Output Voltage: 12 V
• Output Current: Up to 1 A
• Dropout Voltage: ~1.0 V typical
• Quiescent Current: 5 mA (typical)
• Line Regulation: 0.01%/V (typical)
• Load Regulation: 0.3% (typical)
• Thermal Shutdown and Current Limit Features
• Package: TO‑220 (3-pin)

Applications of KA78R12 Voltage Regulator

• Power supplies for microcontroller systems
• Audio/visual equipment
• Voltage regulation in embedded and control systems
• Industrial automation
• Consumer electronics power modules

Related Links

• KA78R12 Datasheet (PDF)
• Browse More Power Components

Package Include

• 1 × KA78R12 Voltage Regulator (TO‑220)