MUN5231DW1, NSBC123EDXV6 Dual NPN Bias Resistor Transistors R1 = 2.2 k , R2 = 2.2 k MUN5231DW1, NSBC123EDXV6 THERMAL CHARACTERISTICS Characteristic Symbol Max Unit MUN5231DW1 (SOT 363) ONE JUNCTION HEATED Total Device Dissipation P D T = 25C (Note 1) 187 mW A (Note 2) 256 Derate above 25C (Note 1) 1.5 mW/C (Note 2) 2.0 Thermal Resistance, (Note 1) R 670 C/W JA Junction to Ambient (Note 2) 490 MUN5231DW1 (SOT363) BOTH JUNCTION HEATED (Note 3) Total Device Dissipation P D T = 25C (Note 1) 250 mW A (Note 2) 385 Derate above 25C (Note 1) 2.0 mW/C (Note 2) 3.0 Thermal Resistance, R C/W JA Junction to Ambient (Note 1) 493 (Note 2) 325 Thermal Resistance, R C/W JL Junction to Lead (Note 1) 188 (Note 2) 208 Junction and Storage Temperature Range T , T 55 to +150 C J stg NSBC123EDXV6 (SOT563) ONE JUNCTION HEATED Total Device Dissipation P D T = 25C (Note 1) 357 mW A Derate above 25C (Note 1) 2.9 mW/C Thermal Resistance, R C/W JA Junction to Ambient (Note 1) 350 NSBC123EDXV6 (SOT563) BOTH JUNCTION HEATED (Note 3) Total Device Dissipation P D T = 25C (Note 1) 500 mW A Derate above 25C (Note 1) 4.0 mW/C Thermal Resistance, C/W R JA Junction to Ambient (Note 1) 250 Junction and Storage Temperature Range T , T 55 to +150 C J stg 1. FR4 Minimum Pad. 2. FR4 1.0 1.0 Inch Pad. 3. Both junction heated values assume total power is sum of two equally powered channels.