MMBD914 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 A B C D E G H J K L M Min 0.35 1.19 2.10 0.85 0.46 1.70 2.70 0.01 0.89 0.30 0.076 Max 0.51 1.40 3.00 1.05 1.00 2.10 3.10 0.13 1.10 0.61 0.25 MMBD914 Maximum Ratings Rating Symbol Value Unit Reverse Voltage VR 100 Vdc Forward Current IF 200 mAdc IFM(Surge) 500 mAdc Symbol Max Unit Total Device Dissipation FR-5 Board TA=25 C Derate Above 25 C PD 225 1.8 mW mW/ C Thermal Resistance, Junction to Ambient R qJA 556 C/W 300 mW 2.4 mW/ C 417 C/W Peak Forward Surge Current Thermal Characteristics Characterictics Total Device Dissipation Alumina Substrate,(2)TA=25 C Derate Above 25 C Thermal Resistance, Junction to Ambient Junction and Storage Temperature PD R qJA TJ, Tstg -55 to + 150 C 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 MMBD914 5D WEITRON http://www.weitron.com.tw Eqivalent Circuitdiagram 3 1 MMBD914 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 50½ 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