21DQ04 40V SCHOTTKY RECTIFIER 2.0A FEATURES • Low profile, axial leaded outline • High frequency operation • Very low forward voltage drop • High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance • Guard ring for enhanced ruggedness and long term reliability • Lead (Pb)-free plating • Designed and qualified for industrial level MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum average forward current See fig. 4 IF(AV) Maximum peak one cycle non-repetitive surge current See fig. 6 IFSM Non-repetitive avalanche energy EAS TJ = 25 °C, IAS = 1.0 A, L = 10 mH 5.0 mJ IAR Current decaying linearly to zero in 1 µs Frequency limited by TJ maximum VA = 1.5 x VR typical 1.0 A 50 % duty cycle at TC = 112 °C, rectangular waveform 5 µs sine or 3 µs rect. pulse 10 ms sine or 6 ms rect. pulse Repetitive avalanche current 2 Following any rated load condition and with rated VRRM applied A 420 70 ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL 2A Maximum forward voltage drop VFM (1) TJ = 25 °C 4A 2A TJ = 125 °C 4A Maximum reverse leakage current IRM (1) VALUES TEST CONDITIONS TJ = 25 °C VR = Rated VR TJ = 125 °C TYP. MAX. 0.49 0.55 0.60 0.65 0.42 0.5 0.56 0.62 0.01 0.50 5.2 10 UNITS V mA Typical junction capacitance CT VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 °C 130 pF Typical series inductance LS Measured lead to lead 5 mm from package body 8.0 nH THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL Maximum junction and storage temperature range TJ (1), TEST CONDITIONS TStg Maximum thermal resistance, junction to ambient RthJA DC operation Without cooling fin Typical thermal resistance, junction to lead RthJL DC operation See fig. 4 Approximate weight Marking device Case style DO-204AL (D-41) VALUES UNITS - 40 to 150 °C 100 °C/W 25 0.33 g 0.012 oz. 21DQ04 Note (1) dP tot 1 ------------- < -------------dT J R thJA thermal runaway condition for a diode on its own heatsink E-mail: [email protected] 1 of 2 Web Site: www.taychipst.com 21DQ04 40V SCHOTTKY RECTIFIER RATINGS AND CHARACTERISTIC CURVES 2.0A 21DQ04 1000 T = 150°C T = 125°C J J 1 TJ = Junction Capacitance - C T (pF) Instantaneous Forward Current - IF (A) 10 25°C TJ = 25°C 100 10 0 10 20 30 40 Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage 0 0.3 0.6 0.9 1.2 Forwa rd Volta g e Drop - V FM (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics 100 TJ = 150°C Reverse Current - IR (mA) 10 125°C 1 100°C 75°C 0.1 Allowa ble Lead Temperature - (°C) 150 0.1 DC 120 90 Square wave (D = 0.50) 80% Rated V R applied 60 30 = 1/8 inch see note (1) 0 50°C 0 0.01 1 2 3 Average Forward Current - I F(AV) (A) 25°C Fig. 4 - Maximum Allowable Lead Temperature vs. Average Forward Current 0.001 0.0001 0 10 20 30 40 2 Average Power Loss - (Watts) Reverse Voltage - VR (V) Non-Rep etitive Surge Current - I FSM (A) Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage 1000 100 D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 1.6 1.2 DC RMSLimit 0.8 0.4 0 0 At Any Rated Load Condition And With Rated VRRM Applied Following Surge 10 10 100 1000 1 2 3 Average Forward Current - I F(AV) (A) Fig. 5 - Forward Power Loss Characteristics 10000 Square Wave Pulse Duration - t p (microsec) Fig. 6 - Maximum Non-Repetitive Surge Current E-mail: [email protected] 2 of 2 Web Site: www.taychipst.com