21DQ04

21DQ04 IRF | Alldatasheet

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Bulletin PD-20707 rev. C 03/03 1www.irf.com Major Ratings and Characteristics IF(AV) Rectangular 2 A waveform VRRM 40 V VF @ 2 Apk, TJ = 125°C 0.5 V TJ range - 40 to 150 °C Characteristics 21DQ04 Units The 21DQ04 axial leaded Schottky rectifier has been opti- mized for very low forward voltage drop, with moderate leakage. Typical applications are in switching power sup- plies, 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 Description/Features Dimensions in millimeters and inches Conform to JEDEC Outline DO-204AL (DO-41) CASE STYLE AND DIMENSIONS DO-41

Bulletin PD-20707 rev. C 03/03 2 www.irf.com Part number 21DQ04 VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) Voltage Ratings VFM Max. Forward Voltage Drop 0.49 0.55 V @ 2A (1) 0.60 0.65 V @ 4A 0.42 0.5 V @ 2A 0.56 0.62 V @ 4A IRM Max. Reverse Leakage Current 0.01 0.50 mA T J = 25 °C (1) 5.2 10 mA T J = 125 °C C T Typical Junction Capacitance 130 pF V R = 5VDC (test signal range 100Khz to 1Mhz) 25°C LS Typical Series Inductance 8.0 nH Measured lead to lead 5mm from package body TJ = 25 °C TJ = 125 °C VR = rated VR Typ. Max. Electrical Specifications (1) Pulse Width < 300µs, Duty Cycle <2% 21DQ04Parameters Units Conditions IF(AV) Max. Average Forward Current 2 A 50% duty cycle @ T C = 112°C, rectangular wave form * See Fig. 4 IFSM Max. Peak One Cycle Non-Repetitive 420 5µs Sine or 3µs Rect. pulse Surge Current * See Fig. 6 70 10ms Sine or 6ms Rect. pulse EAS Non-Repetitive Avalanche Energy 5.0 mJ T J = 25 °C, IAS = 1.0 Amps, L = 10 mH IAR Repetitive Avalanche Current 1.0 A Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical Absolute Maximum Ratings Following any rated load condition and with rated VRRM applied A Parameters 21DQ04 Units Conditions TJ Max. Junction Temperature Range (*) -40 to 150 °C Tstg Max. Storage Temperature Range -40 to 150 °C R thJA Max. Thermal Resistance Junction 100 °C/W DC operation to Ambient Without cooling fin R thJL Typical Thermal Resistance Junction 25°C/W DC Operation (* See Fig. 4) to Lead wt Approximate Weight 0.33(0.012) g (oz.) Case Style DO-204AL(DO-41) Thermal-Mechanical Specifications Parameters 21DQ04 Units Conditions < thermal runaway condition for a diode on its own heatsink (*) dPtot 1 dTj Rth( j-a)

Bulletin PD-20707 rev. C 03/03 3www.irf.com Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage Fig. 1 - Maximum Forward Voltage Drop Characteristics 100 1000 0 1 02 03 04 0 R TJunction Capacitance - C (pF) Reverse Voltage - V (V) T = 25°CJ 0.1 00 . 3 0 . 6 0 . 9 1 . 2 F FM T= 1 5 0 °C T= 1 2 5 °C T=2 5 °C J J J Forward Voltage Drop - V (V) Instantaneous Forward C urrent - I (A) 0.0001 0.001 0.01 0.1 100 0 1 02 03 04 0 R R 125 °C 100 °C 75°C 50°C 25°C Reverse Current - I (mA) Reverse Voltage - V (V) T= 1 5 0 °CJ

Bulletin PD-20707 rev. C 03/03 4 www.irf.com Fig. 4 - Maximum Allowable Lead Temperature Vs. Average Forward Current Fig. 5 - Forward Power Loss Characteristics 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 0.4 0.8 1.2 1.6 0123 DC Average Power Loss - (Watts) F(AV) RM S Lim it D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 Average Forward Current - I (A) 100 1000 10 100 1000 10000 FSMNon-Repeti ti ve Surge Current - I (A) p At Any Rated Load Condition And W ith Rated V Applied Following Surge RRM Square Wave Pulse Duration - t (microsec) 120 150 0123 DC F(AV) s e en o t e( 2 ) Average Forward Current - I (A) Square wave (D = 0.50) 80% Rated V appliedR Allowable Lead Temperature - ( ° C) =1 / 8i n c h

Bulletin PD-20707 rev. C 03/03 5www.irf.com Ordering Information Table Device Code 1 524 3 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)

21 D Q 04 TR

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 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.