50PCS MJE3055 MJE3055T TO220 NPN Power Transistors Overview A pack of 50 MJE3055 and MJE3055T NPN power transistors in TO220 package, intended for general purpose power switching and amplification in electronic equipment and projects. These components use the standard TO220 form factor for simple mounting and effective heat dissipation. Key benefits Bulk supply for projects and work: fifty identical transistors reduce downtime and minimize repeated ordering for production runs or maintenance. Easy replacement and integration: matches circuits that specify MJE3055 or MJE3055T, following the common TO220 package pinout for straightforward swapin installation. Practical thermal management: TO220 metal tab allows attachment to standard heatsinks for improved heat dissipation in power applications. Consistent components: uniform package and lead configuration help ensure repeatable assembly and predictable behavior across units. Function and attributes Function: NPN bipolar power transistor suitable for switching and amplification tasks in a wide range of electronic circuits. Compatibility: direct substitute for parts listed as MJE3055 or MJE3055T in equipment schematics and lists. Size and mounting: TO220 package with a metal tab and mounting hole for secure heatsink attachment; lead spacing and tab position conform to common TO220 dimensions for compatibility with existing layouts. Materials: standard TO220 construction with a thermally conductive metal tab and molded body for electrical insulation and mechanical protection. Performance: designed for stable operation in typical power control applications when used within the device ratings specified by the circuit designer. Verify device ratings before use. Typical applications Power supplies and voltage regulators: worn transistors in bench supplies or use in regulator designs that require reliable switching and dissipation capability. Motor control and robotics: suitable for switching and driving small DC motors and actuators in robotics, hobby projects, and automation controllers. Audio and amplifier : useful for maintenance and rebuilding of amplifier stages and other power electronics where MJE3055 type transistors are specified. Usage notes Confirm circuit voltage and current requirements before substituting parts to ensure compatibility with system ratings. Mount to an appropriate heatsink when operating at elevated power levels to maintain stable thermal conditions. Observe standard ESD handling precautions during assembly to protect semiconductor devices. What you receive Fifty MJE3055 MJE3055T transistors in TO220 package, supplied as a bulk pack for easy storage and use in or production environments.