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=100Adc) V(BR) 100 Forward Voltage(IF=10mAdc) VF 1000 mVdc IR 0.025 5.0 Adc 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 0.1F 100 H IF t trr 10% 0.1F 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 (A) 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