WEITRON MMBD4148C/A/S Surface Mount Switching Diode SWITCHING DIODE 200mAMPERS 100VOLTS Features: *High Speed 4ns *Low Rever Leakage Current *Small Outline Surface Mount SOT-23 Package 3 1 2 SOT-23 SOT-23 Outline Dimensions Unit:mm A B TOP VIEW E G C D H K J WEITRON http://www.weitron.com.tw L M Dim Min Max A 0.35 0.51 B 1.19 1.40 C 2.10 3.00 D 0.85 1.05 E 0.46 1.00 G 1.70 2.10 H 2.70 3.10 J 0.01 0.13 K 0.89 1.10 L 0.30 0.61 M 0.076 0.25 MMBD4148C/A/S WE IT R ON Maximum Ratings Rating Symbol Value Unit Reverse Voltage VR 100 Vdc Forward Current IF 200 mAdc IFSM 2.0 1.0 Adc Symbol Max Unit @t=1.0us Non-Repetitive Peak Forward Surge Current @t=1.0s T her mal C har acter istics Characterictics Total Device Dissipation FR-5 Board TA=25 C PD 500 mW Thermal Resistance, Junction to Ambient R qJA 556 C/W -55 to + 150 C Junction and Storage Temperature TJ, Tstg Electrical Characteristics (TA=25 C Unless Otherwise note) Characterictics Symbol Min Max Unit Reverse Breakdown Votalge (IR=100µAdc) V(BR) 100 Forward Voltage(IF=10mAdc) VF 1000 mVdc IR 0.025 5.0 µAdc CT 4.0 PF trr 4.0 ns Off Characteristics Reverse Voltage Leakage Current (VR=20Vdc) (VR=75Vdc) Diode Capacitance (VR=0, f=1.0MHz) Revarse 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 Marking Eqivalent Circuitdiagram MMBD4148C A4 3 MMBD4148A A1 3 MMBD4148S A7 3 WEITRON http://www.weitron.com.tw 1 2 1 2 1 2 MMBD4148C/A/S WE IT R ON 820 +10V 2.0K IF tp tr 0.1µF 100 µH IF t trr 10% 0.1µF D.U.T. t 90% 50 OUTPUT PULSE GENERATOR 50 INPUT SAMPLING OSCILLOSCOPE VR IR(REC)=1.0mA IR INPUT SIGNAL OUTPUT PULSE (IF=IR=10mA, MEASURED AT IR(REC)=1.0mA Notes:1. A 2.0 k variable resistor for a Forward Current (IF) 0f 10 mA 2. Input pules is adjusted so IR(peak) is equal to 10 mA » 3. tp trr Figure 1. Recovery Time Equivalent Test Circuit 10 IR, REVERSE CURRENT (µA) IF, FORWARD CURRENT (mA) 100 TA=85 C 10 TA= -40 C 1.0 0.1 TA=25 C 0.2 0.4 0.6 0.8 1.0 1.2 TA=150 C TA=125 C 1.0 TA=85 C 0.1 TA=55 C 0.01 0.001 TA=25 C 0 10 20 Figure 2. Forward Voltage Figure 3. Leakage Current CD, DIODE CAPACITANCE (pF) 0.68 0.64 0.60 0.56 0.52 0 2 4 6 VR, REVERSE VOLTAGE (VOLTS) Figure 4. Capacitance WEITRON http://www.weitron.com.tw 30 VR, REVERSE VOLTAGE (VOLTS) VF, FORWARD VOLTAGE (VOLTS) 8 40 50