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| Bulletin PD-20707 rev. C 03/03 21DQ04 SCHOTTKY RECTIFIER 2 Amp DO-41 Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM VF TJ @ 2 Apk, TJ = 125C range Description/Features Units A V V C The 21DQ04 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 21DQ04 2 40 0.5 - 40 to 150 CASE STYLE AND DIMENSIONS Conform to JEDEC Outline DO-204AL (DO-41) Dimensions in millimeters and inches www.irf.com 1 21DQ04 Bulletin PD-20707 rev. C 03/03 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 21DQ04 40 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 4 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 6 Non-Repetitive Avalanche Energy Repetitive Avalanche Current 420 70 5.0 1.0 A mJ A 5s Sine or 3s Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied 21DQ04 2 Units A Conditions 50% duty cycle @ TC = 112C, rectangular wave form TJ = 25 C, IAS = 1.0 Amps, L = 10 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop (1) 21DQ04 Typ. 0.49 0.60 0.42 0.56 0.01 5.2 130 8.0 Max. 0.55 0.65 0.5 0.62 0.50 10 Units V V V V mA mA pF nH @ 2A @ 4A @ 2A @ 4A Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current (1) Typical Junction Capacitance Typical Series Inductance TJ = 25 C TJ = 125 C VR = 5VDC(test signal range 100Khz to 1Mhz) 25C Measured lead to lead 5mm from package body (1) Pulse Width < 300s, Duty Cycle <2% Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range (*) Max. Storage Temperature Range 21DQ04 Units -40 to 150 -40 to 150 100 25 C C Conditions RthJA Max. Thermal Resistance Junction to Ambient RthJL Typical Thermal Resistance Junction to Lead wt Approximate Weight Case Style (*) dPtot dTj < 1 Rth( j-a) C/W DC operation Without cooling fin C/W DC Operation (* See Fig. 4) 0.33(0.012) g (oz.) DO-204AL(DO-41) thermal runaway condition for a diode on its own heatsink 2 www.irf.com 21DQ04 Bulletin PD-20707 rev. C 03/03 100 Reverse C urrent - I R (m A) 10 10 1 0.1 0.01 T J = 150C 125C 100C 75C 50C 25C 0.0 01 In sta nta ne ous Forw ard C urrent - I F (A) 0.000 1 0 10 20 30 40 T = 150C J J Reverse V oltage - VR (V) T = 125C 1 T J = 25C Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage 1 000 Junction C apacitan ce - C T (pF) T J = 25C 100 0.1 0 0.3 0 .6 0.9 1.2 Forw ard Voltage D rop - V FM (V) 10 0 10 20 30 40 Reverse Voltage - VR (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage www.irf.com 3 21DQ04 Bulletin PD-20707 rev. C 03/03 1 50 Allowa ble Lead Te m pe ratu re - ( C ) 2 Average Power Loss - (W atts) DC 1 20 1.6 90 Square w ave (D = 0.50) 80% Rated V R applied 1.2 D D D D D = = = = = 0.20 0.25 0.33 0.50 0.75 DC 60 RM S Lim it 0.8 30 = 1/8 inch see note (2) 0.4 0 0 1 2 3 Average Forw ard C urren t - I F(AV) (A) 0 0 1 2 3 Average Forw ard C urren t - I F(AV) (A) Fig. 4 - Maximum Allowable Lead Temperature Vs. Average Forward Current Fig. 5 - Forward Power Loss Characteristics 1000 No n-Rep etitiv e S urge C urrent - I FSM (A) 100 At Any Rated Load C ondition And W ith Rated V RRM Applied Following Surge 10 10 100 1000 10000 Square W ave Pulse D uration - t p (m icrosec) Fig. 6 - Maximum Non-Repetitive Surge Current (2) Formula used: TL = TJ - (Pd + PdREV) x RthJL ; Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 5); PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1 = 80% rated VR 4 www.irf.com 21DQ04 Bulletin PD-20707 rev. C 03/03 Ordering Information Table Device Code 21 1 D 2 Q 3 04 4 TR 5 1 2 3 4 5 - 21 = 2.1A (Axial and small packages - Current is x10) D = DO-41 package Q = Schottky Q.. Series 04 = Voltage Rating : 40V TR = Tape & Reel package ( 5000 pcs) TB = Tape & Box package (Ammunition -3000 pcs) = Box package (1000 pcs) Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level. Qualification Standards can be found on IR's Web site. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7309 Visit us at www.irf.com for sales contact information. 03/03 www.irf.com 5 |
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