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WEITRON Surface Mount Switching Diode Features: _ *High Speed < 4ns *Low Rever Leakage Current *Surface Mount Package Ideally Suited for Automatic Insertion 1N4148W SWITCHING DIODE 150mAMPERS 100VOLTS 1 Mechanical Data: *Case: SOD-123, Molded Plastic *Terminals: Solderable per MIL-STD-202 Method 208 *Polarity: Cathode Band *Weight: 0.01grams(approx) 2 SOD-123 SOD-123 Outline Dimensions Unit:mm SOD-123 Dim A B C D E H J K Min Max 2.55 2.85 1.40 1.80 0.95 1.35 0.50 0.70 0.30 REF 0.10 0.15 3.55 3.85 PIN 1. CATHODE 2. ANODE http://www.weitron.com.tw WEITRON 1N4148W Maximum Ratings Rating Nop-Reptitive Reverse Voltage Peak Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Vlotage Forward Continuous Current (1) Average Recfified Output Current Non-Repetitive Peak Forward Surge Current Symbol VRM VRRM VRWM VR IFM Io I FSM Value 100 75 300 150 WE IT R ON Unit Vdc Vdc mAdc mAdc Adc @ t=1.0us @ t=1.0s 2.0 1.0 T her mal C har acter istics Characterictics Total Device Dissipation (1) Symbol PD R JA TJ, Tstg Max 400 Unit mW C/W C Thermal Resistance, Junction to Ambient Air (1) Junction and Storage Temperature 315 -55 to + 150 Electrical Characteristics (TA=25 C Unless Otherwise note) Characterictics Symbol Min Max Unit Off C har acter istics Forward Voltage I F=1.0mA I F=10mA I F=50mA I F=150mA VF 0.715 0.855 1.00 1.25 1.0 25 4.0 4.0 Vdc Reverse Voltage Leakage Current VR=75Vdc VR=20Vdc Diode Capacitance (VR=0, f=1.0MHz) Revarse Recover Time (IF=IR=10mAdc) IR CT trr Adc nAdc pF ns 1. Valid provided that terminals are kept at ambient temperature. Device Marking Item 1N4148W Marking A2 , T4 Eqivalent Circuitdiagram 1 2 http://www.weitron.com.tw WEITRON 1N4148W 820 +10V 2.0K 100 H 0.1F D.U.T. 50 OUT P UT P ULS E G E NE R AT OR 50 INP UT S AMP LING OS C ILLOS C OP E VR 90% IR INP UT S IG NAL IF 0.1F tr 10% tp t IF WE IT R ON trr t I R (R E C ) =1.0mA OUT P UT P ULS E (I F =I R =10mA, ME AS UR E D AT I R (R E C ) =1.0mA Notes :1. A 2.0 k variable res is tor for a F orward C urrent (I F ) 0f 10 mA 2. Input pules is adjus ted s o I R (peak) is equal to 10 mA 3. tp trr FIG.1 Recovery Time Equivalent Test Circuit IF, INSTANTANEOUS FORWARD CURRENT (mA) 1000 10,000 IR, LEAKAGE CURRENT (nA) 100 1000 10 100 1.0 0.1 10 VR =20V 0.01 0 1 VF, INSTANTANEOUS FORWARD VOLTAGE (V) 2 0 0 100 Tj, JUNCTION TEMPERATURE ( C) 200 FIG.2 Forward Voltage FIG.3 Leakage Current vs Junction Temperature http://www.weitron.com.tw WEITRON |
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