1SS355 Surface Mount Switching Diode P b Lead(Pb)-Free SWITCHING DIODE 100m AMPERES 100VOLTS SOD-323 1 WEITRON http://www.weitron.com.tw 1SS 355 Maximum Ratings Rating Symbol Value Unit Reverse Voltage VR 100 Vdc Forward Current IF 100 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 Reverse Breakdown Votalge (IR=100µAdc) V(BR) 100 Forward Voltage(IF=100mAdc) VF Max Unit Off Characteristics Reverse Voltage Leakage Current (VR=80Vdc) Diode Capacitance (VR=0.5V, f=1.0MHz) Revarse Recover Time (IF=IR=10mAdc) 1. FR-5=1.0x0.75x0.062 in Vcc 1200 mV dc IR 0.1 µAdc CT 3.5 pF trr 4.0 ns 2.Alumina=0.4x0.3x0.024 in. 99.5% alumina. Device Marking Item 1SS 355 WEITRON http://www.weitron.com.tw Marking 5D Eqivalent Circuitdiagram 1 2 1SS 355 820 +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 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 1000 100 IR, REVERSE CURRENT (nA) IF, FORWARD CURRENT (mA) 120 Scattering Limit 10 1 100 80 60 40 Scattering Limit 20 0.1 0 0 10 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 20 VR, REVERSE VOLTAGE (VOLTS) VF, FORWARD VOLTAGE (VOLTS) CD, DIODE CAPACITANCE (pF) Figure 2. Forward Voltage Figure 3. Leakage Current 1.2 f=1MHZ Tj=25 C 1.0 0.8 0.6 0.4 0.2 0 0 2 4 6 8 VR, REVERSE VOLTAGE (VOLTS) Figure 4. Capacitance WEITRON http://www.weitron.com.tw 30 10 50 70 100