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| PD-2.043 rev. D 12/97 21FQ... SERIES SCHOTTKY RECTIFIER 30 Amp Major Ratings and Characteristics Characteristics I F(AV) Rectangular waveform VRRM range I FSM @ tp = 5 s sine VF TJ @ 30 Apk, TJ = 125C range 35 to 45 7800 0.51 - 65 to 150 V Description/Features Units A The 21FQ Schottky rectifier series has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150 C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 150 C TJ operation A V C Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability Hermetic packaging 21FQ... 30 CASE STYLE AND DIMENSIONS Conforms to JEDEC Outline DO-203AA (DO-4) Dimensions in millimeters and inches www.irf.com 1 21FQ... Series PD-2.043 rev. D 12/97 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) 35 40 45 VRWM Max. Working Peak Reverse Voltage (V) 21FQ035 21FQ040 21FQ045 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 7 Non-Repetitive Avalanche Energy Repetitive Avalanche Current 21FQ 30 7800 600 40 6 Units A Conditions 50% duty cycle @ TC = 107 C, rectangular wave form 5s Sine or 3s Rect. pulse Following any rated load condition and with rated VRRM applied A mJ A 10ms Sine or 6ms Rect. pulse TJ = 25 C, IAS= 6 Amps, L = 2.2 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 * See Fig. 1 (1) 21FQ 0.57 0.69 0.51 0.65 Units V V V V mA mA pF nH V/ s @ 30A @ 60A @ 30A @ 60A TJ = 25 C TJ = 125 C Conditions TJ = 25 C TJ = 125 C VR = rated VR IRM CT LS Max. Reverse Leakage Current (1) * See Fig. 2 Max. Junction Capacitance Typical Series Inductance 4 150 1850 6.5 10,000 VR = 5V DC, (test signal range 100Khz to 1Mhz) 25 C Measured from top of terminal to mounting plane dv/dt Max. Voltage Rate of Change (Rated VR) (1) Pulse Width < 300s, Duty Cycle < 2% Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range 21FQ -65 to 150 -65 to 150 1.25 0.50 5.8 (0.2) Min. Max. 14 (12) 23 (20) Units C C C/W DCoperation Conditions RthJC Max. Thermal Resistance Junction to Case RthCS Typical Thermal Resistance, Case to Heatsink wt T Approximate Weight Mounting Torque Case Style * See Fig. 4 C/W Mounting surface , smooth and greased g (oz.) Kg-cm Non-lubricated threads (Ibf-in) JEDEC DO-203AA(DO-4) 2 www.irf.com 21FQ... Series PD-2.043 rev. D 12/97 10 00 10 00 T =1 0 C 5 J R v r eC r e t -I (m ) e es u r n A R 10 0 1 0 1 . 1 2 5C .0 1 .0 1 0 0 1 5C 2 1 0C 0 7 5C 5 0C 10 0 In ta ta e u F r ad C r n - I ( ) s n n o s o w r u re t A F 5 11223344 05050505 R v r eV lta e- V (V e es o g R) 1 0 T =1 0 C 5 J T =1 5 C 2 J T= 2 5C J J n tio C p c n e- C ( F u c n a a ita c p) T Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage 100 00 T =2 5C J 1 10 00 . 1 0 .1 . 2. 3. 4. 5. 6 .7 .8 .9 F r a dV lt g Do - V M V ow r o a e r p F ( ) 11 1 .1 .2 10 0 0 1 0 2 0 3 0 4 0 0 5 R v r eV lt g -V (V e es o a e R ) Fig. 1 - Maximum Forward Voltage Drop Characteristics 1 0 T em l I p d n e- Z h r a me a c ( /W C) tJ hC Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage 1 .1 D=0 0 .5 D=0 3 .3 D=0 5 .2 D=0 7 .1 D=0 8 .0 PM D t 1 t2 Nt s oe : 1 D t f co D= t1/ t2 . uy a t r 2 P a T =P x Z . ek +T JD M th C C J .1 0 .1 1 1 0 10 0 .0 1 S g P ls in le u e ( h r a R s ta c ) T e m l e is n e .0 01 .0 0 1 00 .0 0 01 .0 01 t1, R c n u r P ls D r t n(S c n s e ta g la u e u aio eo d ) Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics www.irf.com 3 21FQ... Series PD-2.043 rev. D 12/97 15 5 A w b C s T m e au e- ( ) llo a le a e e p r t r C 2F 1Q R J ( C =12 / . 5 CW th C D ) 15 4 2 5 D=00 .8 D=01 .7 .5 2 D=02 0 D=03 .3 D=05 .0 1 5 15 3 D C 15 2 A e g P w rL s -( a ) v ra e o e o s W tts 1 R SL it 0 M im D C 5 15 1 0 5 11223344 05050505 0 0 5 11223344 05050505 A e a eF r a dC r e t - IF V ( ) v r g ow r ur n (A ) A A e g F r a dC rr n - I v ra e o w r u e t () A FA ) (V Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current 10000 FSM Fig. 6 - Forward Power Loss Characteristics Non-Repetitive Surge Current - I (A) 1000 At Any Rated Load Condition And With Rated V RRM Applied Following Surge 100 10 100 1000 10000 Square Wave Pulse Duration - tp (microsec) Fig. 7 - Maximum Non-Repetitive Surge Current L HIGH-SPEED SWITCH FREE-WHEEL DIODE 40HFL40S02 Vd = 25 Volt DUT IRFP460 Rg = 25 ohm + CURRENT MONITOR Fig. 8 - Unclamped Inductive Test Circuit 4 www.irf.com |
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