Overview
The UA7805KC voltage regulator is a three-terminal fixed positive voltage regulator manufactured by Fairchild Semiconductor. This device provides a stable 5V output across a wide input voltage range, making it suitable for industrial control systems, power supplies, and general-purpose electronics. The robust TO-3 steel case design ensures reliable thermal management and mechanical durability in harsh environments.
Key Features
- Fixed 5V positive output voltage
- Maximum output current up to 1.5A
- Internal thermal overload protection
- Short circuit protection
- Wide input voltage range (7.5V to 25V)
- Output voltage accuracy of ±2%
- TO-3 steel case for improved heat dissipation
Technical Specifications
The UA7805KC is designed for demanding industrial and consumer power management applications requiring reliable, regulated DC voltage output.
Typical Applications
- Industrial automation and control systems
- Power supplies and battery charging circuits
- Automotive and transportation systems
- Computer and peripheral equipment
- Consumer electronics and instrumentation
- Precision voltage reference circuits
Compatibility & Replacements
Compatible With
- Standard 5V power supply designs
- Discrete component linear power supplies
- Industrial control and automation platforms
- OEM equipment requiring fixed 5V regulation
- Breadboard and prototype applications
Replaces / Drop-In Replacement For
- NTE309K voltage regulator
- ECG309K voltage regulator
- Other Fairchild UA7805 series variants
Works With
- Linear power supply architectures
- Discrete regulator networks
- DC-DC converter reference designs
- Standard industrial control platforms
