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| WEITRON Surface Mount Switching Diode Features: *High Speed 4ns *Low Rever Leakage Current *Small Outline Surface Mount SOT-23 Package MMBD4148C/A/S SWITCHING DIODE 200mAMPERS 100VOLTS 3 1 2 SOT-23 SOT-23 Outline Dimensions A Unit:mm TOP VIEW B C E G H D K L J 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 WEITRON http://www.weitron.com.tw MMBD4148C/A/S Maximum Ratings Rating Reverse Voltage Forward Current @t=1.0us Non-Repetitive Peak Forward Surge Current @t=1.0s Symbol VR IF Value 100 200 WE IT R ON Unit Vdc mAdc Adc IFSM 2.0 1.0 T her mal C har acter istics Characterictics Total Device Dissipation FR-5 Board TA=25 C Thermal Resistance, Junction to Ambient Junction and Storage Temperature Symbol PD R qJA TJ, Tstg Max 500 Unit mW C/W C 556 -55 to + 150 Electrical Characteristics (TA=25 C Unless Otherwise note) Characterictics Symbol Min Max Unit Off Characteristics Reverse Breakdown Votalge (IR=100Adc) Forward Voltage(IF=10mAdc) Reverse Voltage Leakage Current (VR=20Vdc) (VR=75Vdc) V(BR) VF IR CT trr 100 1000 0.025 5.0 4.0 4.0 Vcc mVdc Adc PF ns Diode Capacitance (VR=0, f=1.0MHz) Revarse Recover Time (IF=IR=10mAdc) 1. FR-5=1.0x0.75x0.062 in 2.Alumina=0.4x0.3x0.024 in. 99.5% alumina. Device Marking Item MMBD4148C MMBD4148A MMBD4148S Marking A4 A1 A7 Eqivalent Circuitdiagram 3 3 3 1 2 1 2 1 2 WEITRON http://www.weitron.com.tw MMBD4148C/A/S 820 +10V 2.0K 100 H 0.1F D.U.T. 50 OUTPUT PULSE GENERATOR 50 INPUT SAMPLING OSCILLOSCOPE VR IF 0.1F tr 10% tp t IF WE IT R ON trr t 90% INPUT SIGNAL IR IR(REC)=1.0mA 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 100 IF, FORWARD CURRENT (mA) 10 IR, REVERSE CURRENT (A) TA=150 C 1.0 TA=85 C 10 TA= -40 C TA=125 C 0.1 TA=85 C 1.0 TA=25 C TA=55 C 0.01 0.1 0.2 0.4 0.6 0.8 1.0 1.2 0.001 TA=25 C 0 10 20 30 40 50 VR, REVERSE VOLTAGE (VOLTS) Figure 2. Forward Voltage VF, FORWARD VOLTAGE (VOLTS) Figure 3. Leakage Current 0.68 CD, DIODE CAPACITANCE (pF) 0.64 0.60 0.56 0.52 0 2 4 6 8 VR, REVERSE VOLTAGE (VOLTS) Figure 4. Capacitance http://www.weitron.com.tw WEITRON |
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