2N4401 / MMBT4401Absolute Maximum Ratings (1),(2) Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera- ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi- tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Values are at TA = 25°C unless otherwise noted. SymbolParameterValueUnit VCEO Collector-Emitter Voltage 40 V — NPN General-Purpose Amplifier VCBO Collector-Base Voltage 60 V VEBO Emitter-Base Voltage 6.0 V IC Collector Current - Continuous 600 mA TJ, TSTG Operating and Storage Junction Temperature Range -55 to +150 °C Notes: 1. These ratings are based on a maximum junction temperature of 150°C. 2. These are steady-state limits. ON Semiconductor should be consulted on applications involving pulsed or low- duty cycle operations. Thermal Characteristics Values are at TA = 25°C unless otherwise noted. Max.SymbolParameterUnit2N4401 (3) MMBT4401 (4) Total Device Dissipation 625 350 mW PD Derate Above 25°C 5.0 2.8 mW/°C RθJC Thermal Resistance, Junction to Case 83.3 °C/W RθJA Thermal Resistance, Junction to Ambient 200 357 °C/W Notes: 3. PCB size: FR-4, 76 mm x 114 mm x 1.57 mm (3.0 inch x 4.5 inch x 0.062 inch) with minimum land pattern size. 4. Device mounted on FR-4 PCB 1.6 inch x 1.6 inch x 0.06 inch. www.onsemi.com 2