MMBL4148H Surface Mount Switching Diode Features: *High Speed 4ns *Low Rever Leakage Current *Small Outline Surface Mount SOD-323 Package WEITRON http://www.weitron.com.tw SWITCHING DIODE 200mAMPERS 100VOLTS WE IT R ON MMBL4148H Maximum Ratings Rating Symbol Value Unit Reverse Voltage VR 100 Vdc Forward Current IF 200 mAdc IFM(Surge) 500 mAdc Max Unit Peak Forward Surge Current Thermal Characteristics Characterictics Symbol Total Device Dissipation FR-5 Board TA=25 C PD 500 mW Thermal Resistance, Junction to Ambient R qJA 556 C/W Junction and Storage Temperature TJ, Tstg -55 to + 150 C Electrical Characteristics (TA=25 C Unless Otherwise note) Characterictics Symbol Min Max Unit Reverse Breakdown Votalge (IR=100uAdc) V(BR) 100 Forward Voltage(IF=10mAdc) VF 1000 mVdc Reverse Voltage Leakage Current IR 0.025 5.0 uAdc CT 4.0 pF trr 4.0 ns Off Characteristics (VR=20Vdc) (VR=75Vdc) Diode Capacitance (VR=0, f=1.0MHz) Reverse Recover Time (IF=IR=10mAdc) 1. FR-5=1.0x0.75x0.062 in Vcc 2.Alumina=0.4x0.3x0.024 in. 99.5% alumina. Device Marking Item MMBL4148H WEITRON http://www.weitron.com.tw Marking 5D Eqivalent Circuitdiagram 1 2 WE IT R ON MMBL4148H 820Ω +10V 2.0K IF tp tr 0.1µF 100 µH IF t trr 10% t 0.1uF D.U.T. 90% 50 Ω INP UT S AMP LING OS C ILLOS C OP E 50 Ω OUT P UT P ULS E G E NE R AT OR I R (R E C ) =1.0mA IR VR INP UT S IG NAL OUT P UT P ULS E (I F =I R =10mA, ME AS UR E D AT I R (R E C ) =1.0mA Notes :1. A 2.0 k Ω variable res is tor for a F orward C urrent (I F ) 0f 10 mA 2. Input pules is adjus ted s o I R (peak) is equal to 10 mA » 3. tp trr F igure 1. R ec overy T ime E quivalent T es t C irc uit 10 I R , R E V E R S E C UR R E NT (µA ) I F , F OR WA R D C UR R E NT (mA ) 100 T A =85 C 10 T A =-40 C 1.0 0.1 0.2 T A =25 C T A =150 C T A =125 C 1.0 T A =85 C 0.1 T A =55 C 0.01 T A =25 C 0.001 0.4 0.6 0.8 1.0 0 1.2 10 20 F igure 2. F orward V oltage C D , DIODE C A P A C IT A NC E (pF ) 0.64 0.60 0.56 0 2 4 6 V R , R E V E R S E V OLT A G E (V OLT S ) F igure 4. C apac itanc e WEITRON http://www.weitron.com.tw 40 F igure 3. L eakage C urrent 0.68 0.52 30 V R , R E V E R S E V OLT A G E (V OLT S ) V F , F OR WA R D V OLT A G E (V OLT S ) 8 50