This product complies with the RoHS Directive (EU 2002/95/EC). Powor Transistors 2SD1645 Silicon NPN epitaxial planar type darlington For low frequency amplication Features Package Built-in zener diode (60 V) between collector-base and collector-emitter Code Small variation in withstand pressure TO-126B-A1 Darlington connection Pin Name Extremely satisfactory linearity of the forward current transfer ratio h 1. Emitter FE 2. Collector 3. Base Absolute Maximum Ratings T = 25C a Parameter Symbol Rating Unit Internal Connection Collector-base voltage (Emitter open) V 6010 V CBO C Collector-emitter voltage (Base open) V 6010 V CEO Emitter-base voltage (Collector open) V 5 V EBO B Collector current I 1.0 A C Peak collector current I 1.5 A CP E 1.2 Collector power dissipation P W C * 5.0 Junction temperature T 150 C j Storage temperature T 55 to +150 C stg Note) : With a 100 mm 100 mm 2 mm Al heat sink at T = 25C * a Electrical Characteristics T = 25C3C a Parameter Symbol Conditions Min Typ Max Unit Collector-base voltage (Emitter open) V I = 100 mA, I = 0 50 70 V CBO C E Collector-emitter voltage (Base open) V I = 1 mA, I = 0 50 70 V CEO C B Emitter-base voltage (Collector open) V I = 100 mA, I = 0 5 V EBO E C Collector-base cutoff current (Emitter open) I V = 25 V, I = 0 1 mA CBO CB E Emitter-base cutoff current (Collector open) I V = 4 V, I = 0 1 mA EBO EB C 1 2 * * Forward current transfer ratio h V = 10 V, I = 1.0 A 4 000 40 000 FE CE C 1 * Collector-emitter saturation voltage V I = 1.0 A, I = 1.0 mA 1.8 V CE(sat) C B 1 * Base-emitter saturation voltage V I = 1.0 A, I = 1.0 mA 2.2 V BE(sat) C B Transition frequency f V = 10 V, I = 50 mA, f = 200 MHz 150 MHz T CB E Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors. 2. 1: Pulse measurement * 2: Rank classication * Rank Q R S h 4 000 to 10 000 8 000 to 12 000 16 000 to 40 000 FE Publication date : October 2008 SJD00349AED 1 Maintenance/ Discontinued Maintenance/Discontinued includes following four Product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type Please visit following URL about latest information. This product complies with the RoHS Directive (EU 2002/95/EC). 2SD1645 TO-126B-A1 Unit: mm +0.5 8.0 0.1 3.2 0.2 3.16 0.1 0.75 0.1 0.5 0.1 1.76 0.1 0.5 0.1 4.6 0.2 2.3 0.2 1 2 3 2 SJD00349AED Maintenance/ Discontinued Maintenance/Discontinued includes following four Product lifecycle stage. planed maintenance type maintenance type planed discontinued typed discontinued type Please visit following URL about latest information.