NJM78M05FA

Product Overview

The NJM78M05FA from Nisshinbo Micro Devices Inc. is a positive fixed-output linear voltage regulator intended for single-output 5 V regulation. It is supplied in a through-hole TO-220F package, also identified as a TO-220-3 Full Pack, and is rated for a maximum input voltage of 35 V and an output current of 500 mA. The device is listed as Active and includes over-temperature and short-circuit protection. Its specified operating temperature range is -40°C to 85°C, with a quiescent current of 6 mA and power-supply rejection ratio of 80 dB at 120 Hz.

Key Features

• Positive fixed 5 V output from a single linear regulator channel
• Maximum input voltage of 35 V with output current capability of 500 mA
• Through-hole TO-220F package, listed as TO-220-3 Full Pack
• Over-temperature and short-circuit protection features
• Operating temperature range specified from -40°C to 85°C
• Quiescent current of 6 mA and PSRR of 80 dB at 120 Hz

Applications

• Supplying a fixed 5 V rail to logic, sensor, or indicator loads in general-purpose electronics assemblies
• Providing local post-regulation from a higher DC input in control panels, test equipment, or prototype systems
• Serving as a through-hole regulator in power modules or educational electronics platforms that require a simple 5 V output

Design & Procurement Notes

Designers should select the NJM78M05FA when the required output is fixed at 5 V and the load current does not exceed the specified 500 mA. The 35 V maximum input rating should be considered together with the fixed 5 V output, through-hole TO-220F package, and ambient temperature during layout and thermal planning. The stated -40°C to 85°C operating range, 6 mA quiescent current, 80 dB PSRR at 120 Hz, and over-temperature and short-circuit protection should be evaluated against the application's electrical and environmental requirements.