Bulletin PD-20707 rev. C 03/03 21DQ04 SCHOTTKY RECTIFIER 2 Amp DO-41 Description/Features Major Ratings and Characteristics Characteristics 21DQ04 Units IF(AV) Rectangular waveform 2 A 40 V 0.5 V - 40 to 150 °C VRRM VF @ 2 Apk, TJ = 125°C TJ range 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 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 21DQ04 Max. DC Reverse Voltage (V) 40 VRWM Max. Working Peak Reverse Voltage (V) Absolute Maximum Ratings Parameters 21DQ04 Units 2 A IF(AV) Max. Average Forward Current Conditions 50% duty cycle @ TC = 112°C, rectangular wave form * See Fig. 4 IFSM Max. Peak One Cycle Non-Repetitive 420 5µs Sine or 3µs Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied A Surge Current * See Fig. 6 70 EAS Non-Repetitive Avalanche Energy 5.0 mJ IAR Repetitive Avalanche Current 1.0 A TJ = 25 °C, IAS = 1.0 Amps, L = 10 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications 21DQ04 Parameters VFM IRM Max. Forward Voltage Drop (1) Max. Reverse Leakage Current Units Conditions Typ. Max. 0.49 0.60 0.42 0.55 0.65 0.5 V V V @ 2A @ 4A @ 2A 0.56 0.62 V @ 4A 0.01 0.50 mA TJ = 25 °C 5.2 10 mA TJ = 125 °C (1) TJ = 25 °C TJ = 125 °C VR = rated VR CT Typical Junction Capacitance 130 pF VR = 5VDC(test signal range 100Khz to 1Mhz) 25°C LS Typical Series Inductance 8.0 nH Measured lead to lead 5mm from package body (1) Pulse Width < 300µs, Duty Cycle <2% Thermal-Mechanical Specifications Parameters 21DQ04 Units TJ Max. Junction Temperature Range (*) -40 to 150 Tstg Max. Storage Temperature Range -40 to 150 Conditions °C °C RthJA Max. Thermal Resistance Junction to Ambient 100 °C/W DC operation Without cooling fin RthJL Typical Thermal Resistance Junction to Lead 25 °C/W DC Operation (* See Fig. 4) wt Approximate Weight 0.33(0.012) g (oz.) Case Style DO-204AL(DO-41) (*) dPtot dTj 2 < 1 Rth( j-a) thermal runaway condition for a diode on its own heatsink www.irf.com 21DQ04 Bulletin PD-20707 rev. C 03/03 100 Reverse C urrent - I R (m A) 10 T J = 150°C 10 125°C 1 100°C 75°C 0.1 50°C 0.01 25°C 0.000 1 0 20 30 40 Reverse V oltage - VR (V) T = 125°C Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage J J 1 10 T = 150°C T J = 25°C 1 000 0.1 0 0.3 0 .6 0.9 1.2 Forw ard Voltage D rop - V FM (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics Junction C apacitan ce - C T (pF) In sta nta ne ous Forw ard C urrent - I F (A) 0.0 01 T J = 25°C 100 10 0 10 20 30 40 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage www.irf.com 3 21DQ04 Bulletin PD-20707 rev. C 03/03 2 DC Average Power Loss - (W atts) Allowa ble Lead Te m pe ratu re - (° C ) 1 50 1 20 90 Square w ave (D = 0.50) 80% Rated V R applied 60 30 = 1/8 inch D D D D D 1.6 1.2 = = = = = 0.20 0.25 0.33 0.50 0.75 DC RM S Lim it 0.8 0.4 see note (2) 0 0 0 1 2 3 0 Average Forw ard C urren t - I F(AV) (A) 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 No n-Rep etitiv e S urge C urrent - I FSM (A) 1000 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 D Q 04 TR 1 2 3 4 5 1 - 21 = 2.1A (Axial and small packages - Current is x10) 2 - D = DO-41 package 3 - Q = Schottky Q.. Series 4 - 04 = Voltage Rating : 40V 5 - 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