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| WEITRON Surface Mount Switching Diode Features: *High Speed 4ns *Low Rever Leakage Current *Small Outline Surface Mount SOT-23 Package MMBD4148 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 MMBD4148 Maximum Ratings Rating Reverse Voltage Forward Current Peak Forward Surge Current Symbol VR IF IFM(Surge) Value 100 200 500 WE IT R ON Unit Vdc mAdc mAdc 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 MMBD4148 Marking 5D Eqivalent Circuitdiagram 3 1 WEITRON http://www.weitron.com.tw MMBD4148 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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