3DQ03 3DQ04 SCHOTTKY RECTIFIER 3.3 Amp Major Ratings and Characteristics Characteristics Values Units I F(AV) Rectangular 3.3 A waveform V RRM 30/40 V I FSM @ tp = 5 µs sine 450 A V F @ 3 Apk, T = 25 C 0.57 V - 40 to 50 C Description/Features The 3DQ.. axial leaded Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. Low profile, axial leaded outline High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Lead-Free plating CASE STYLE AND DIMENSIONS Outline C - 6 Dimensions in millimeters and inches
Voltage Ratings Part number 3DQ03 3DQ04 V R Max. DC Reverse Voltage V RWM Max. Working Peak Reverse Voltage 30 40 Absolute Maximum Ratings Parameters 3DQ.. Units Conditions I F(AV) Max. Average Forward Current 3.3 A 50% duty cycle @ T C = 73 C, rectangular wave form * See Fig. 4 I FSM Max. Peak One Cycle Non-Repetitive 450 5µs Sine or 3µs Rect. pulse Following any rated A load condition and with Surge Current * See Fig. 6 90 0ms Sine or 6ms Rect. pulse rated V RRM applied E AS Non-Repetitive Avalanche Energy 6.0 m T = 25 C, I AS =.0 Amps, L = 2 mh I AR Repetitive Avalanche Current.0 A Current decaying linearly to zero in µsec Frequency limited by max. V A =.5 x V R typical Electrical Specifications Parameters 3DQ.. Units Conditions V FM Max. Forward Voltage Drop 0.57 V @ 3A * See Fig. () 0.7 V @ 6A = 25 C 0.5 V @ 3A 0.62 V @ 6A = 25 C I RM Max. Reverse Leakage Current ma = 25 C * See Fig. 2 () 20 ma = 25 C V R = rated V R C T Typical unction Capacitance 90 pf V R = 5V DC (test signal range 00Khz to Mhz) 25 C L S Typical Series Inductance 9.0 nh Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change 0000 V/µs (Rated V R ) () Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 3DQ.. Units Conditions Max. unction Temperature Range (*) -40 to 50 C T stg Max. Storage Temperature Range -40 to 50 C R tha Max. Thermal Resistance unction 80 C/W DC operation to Ambient Without cooling fins R thl Typical Thermal Resistance unction 34 C/W With fin 20 x 20 (0.79 x 0.79).0 (0.04) thick. to Lead Dimensions in millimeters (inches) wt Approximate Weight.2 (0.042) g (oz.) Case Style C - 6 < thermal runaway condition for a diode on its own heatsink (*) dptot dtj Rth( j-a) 2
00 00 0 T = 50 C Instantaneous Forward Current - I F 0 T = 50 C = 25 C = 25 C Reverse Current - I R (ma) 0. 0.0 25 C 0.00 0 0 20 30 40 Reverse Voltage - V R Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage 000 25 C 0. 0 0.3 0.6 0.9.2 unction Capacitance - C T (pf) 00 T = 25 C Forward Voltage Drop - V FM Fig. - Max. Forward Voltage Drop Characteristics 0 0 40 80 20 60 200 Reverse Voltage - V R Fig. 3 - Typical unction Capacitance Vs. Reverse Voltage 3
Allowable Lead Temperature ( C) 50 20 90 60 30 Square wave (D = 0.50) 80% Rated V applied R DC see note (2) 0 0 2 3 4 5 Average Power Loss (Watts) 2.5 2.5 0.5 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 RMS Limit DC 0 0 2 3 4 5 Average Forward Current - IF (AV) Average Forward Current - IF (AV) Fig. 4 - Max. Allowable Lead Temperature Vs. Average Forward Current Fig. 5- Forward Power Loss Characteristics 000 Non-Repetitive Surge Current - IFSM 00 At Any Rated Load Condition And With Rated V Applied Following Surge RRM 0 0 00 000 0000 Square Wave Pulse Duration - t p (microsec) Fig. 6 - Max. Non-Repetitive Surge Current (2) Formula used: T C = - (Pd + Pd REV ) x R thc ; Pd = Forward Power Loss = I F(AV) x V FM @ (I F(AV) / D) (see Fig. 6); Pd REV = Inverse Power Loss = V R x I R ( - D); I R @ V R = 80% rated V R 4
Ordering Information Table Device Code 3 D Q 04 TR 2 3 4 5-3 = 3.A (Axial and small packages - Current is x0) 2 - D = DO-20 package 3 - Q = Schottky Q.. Series 04 = 40V 4-04 = Voltage Ratings 03 = 30V 5 - TR = Tape & Reel package (200 pcs) - = Box package (500 pcs) Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level and Lead-Free. Qualification Standards can be found on IR's Web site. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (30) 252-705 TAC Fax: (30) 252-7309 Visit us at for sales contact information. /04 5