MJE521

MJE521 ® SILICON NPN TRANSISTOR ■ STMicroelectronics PREFERRED SALESTYPE DESCRIPTION The MJE521 is a silicon Epitaxial-Base NPN transistor in Jedec SOT-32 plastic package. It is intended for use in 5 to 20W audio amplifiers, general purpose amplifier and switching circuits. ) s ( ct u d o let r P e o s b O ) s ( t c 3 2 1 SOT-32 INTERNAL SCHEMATIC DIAGRAM u d o r P e t e l o s b O ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CBO Collector-Base Voltage (I E = 0) 40 V V CEO Collector-Emitter Voltage (I B = 0) 40 V V EBO Emitter-Base Voltage (I C = 0) 4 V Collector Current 4 A Collector Peak Current (t p < 5 ms) 8 A Base Current 2 A IC I CM IB P tot T stg Tj Total Dissipation at Tc ≤ 25 C o Storage Temperature Max. Operating Junction Temperature September 2003 40 W -65 to 150 o C 150 o C 1/4 MJE521 THERMAL DATA R thj-amb Thermal Resistance Junction-ambient Max o 3.12 C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Unit I CBO Collector Cut-off Current (I E = 0) V CB = 40 V 100 µA I EBO Emitter Cut-off Current (I C = 0) V EB = 4 V 100 µA V CEO(sus) ∗ Collector-Emitter Sustaining Voltage (I B = 0) h FE DC Current Gain I C = 0.1 A IC = 1 A 40 V CE = 1 V 40 V r P e t e l o ) (s t c u d o r P e t e l o s b O s b O ) s ( ct u d o ∗ Pulsed: Pulse duration = 300µs, duty cycle ≤ 1.5% 2/4 Max. MJE521 SOT-32 (TO-126) MECHANICAL DATA mm DIM. MIN. TYP. inch MAX. MIN. A 7.4 7.8 0.291 TYP. MAX. 0.307 B 10.5 10.8 0.413 0.425 ) s ( ct b 0.7 0.9 0.028 0.035 b1 0.40 0.65 0.015 0.025 C 2.4 2.7 0.094 0.106 c1 1.0 1.3 0.039 D 15.4 16.0 0.606 e 2.2 e3 4.4 F 3.8 G 3 ol 3.2 H 2.54 H2 2.15 I 1.27 O 0.3 V 10o ) (s 0.051 o r P 0.087 ete s b O du 0.630 0.173 0.150 0.118 0.126 0.100 0.084 0.05 0.011 10o t c u d o r P e t e l o s b O 1: Base 2: Collector 3: Emitter 0016114/B 3/4 MJE521 ) s ( ct u d o r P e t e l o ) (s s b O t c u d o r P e t e l o s b O Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a trademark of STMicroelectronics. All other names are the property of their respective owners. © 2003 STMicroelectronics – All Rights reserved STMicroelectronics GROUP OF COMPANIES Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 4/4