1SMB5926-1SMB5956 3.0W Surface Mount Silicon Zener Diode SMB/DO-214AA Features For surface mounted applications in order to optimize board space Low profile package Built-in strain relief Glass passivated junction Low inductance High temperature soldering guaranteed: o 260 C / 10 seconds at terminals Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Mechanical Data Dimensions in inches and (millimeters) Case: Molded plastic over passivated junction Polarity: Color Band denotes positive end (cathode) Standard packaging: 12mm tape Weight: 0.093 gram Maximum Ratings and Electrical Characteristics Rating at 25 oC ambient temperature unless otherwise specified. Type Number DC Power Dissipation at TL=75oC, measure at Zero Lead Length Derate above 75 oC DC Power Dissipation @ TA=25oC Derate above 25oC Thermal Resistance from Junction-to-Lead Thermal Resistance from Junction-to-Ambient Operating and Storage Temperature Range Symbol Value 3.0 Units Watts 40 550 4.4 25 226 -65 to + 150 mW/ oC mW mW/ oC o C/W o C/W o C PD PD RθJL RθJA TJ, TSTG Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be attached. http://www.luguang.cn mail:[email protected] 1SMB5926-1SMB5956 3.0W Surface Mount Silicon Zener Diode ELECTRICAL CHARACTERISTICS (TA=25OC Device (Note 1) Device Marking Code Zener Voltage Range (Note 2) Vz @ Izt IZT Nom (V) Min (V) Max (V) mA unless otherwise noted) Zener Impedance (Note 3) Leakage Current ZZK @ IZK ZZT @ IZT Ohms Ohms mA IZM IR uA VR V IZTC mA(dc) 1.0 8.4 136 1SMB5926 926B 1SMB5927 927B 12 11.4 1SMB5928 928B 13 12.35 1SMB5929 929B 15 14.25 15.75 1SMB5930 930B 16 15.2 16.8 1SMB5931 931B 18 17.1 1SMB5932 932B 20 1SMB5933 933B 22 1SMB5934 934B 24 22.8 25.2 15.6 19 700 0.25 1.0 18.2 62 1SMB5935 935B 27 25.65 28.35 13.9 23 700 0.25 1.0 20.6 55 1SMB5936 936B 30 28.5 31.5 12.5 28 750 0.25 1.0 22.8 50 1SMB5937 937B 33 31.35 34.65 11.4 33 800 0.25 1.0 25.1 45 1SMB5938 938B 36 34.2 37.8 10.4 38 850 0.25 1.0 27.4 41 1SMB5939 939B 39 37.05 40.95 9.6 45 900 0.25 1.0 29.7 38 1SMB5940 940B 43 40.85 45.15 8.7 53 950 0.25 1.0 32.7 34 1SMB5941 941B 47 44.65 49.35 8.0 67 1000 0.25 1.0 35.8 31 1SMB5942 942B 51 48.45 53.55 7.3 70 1100 0.25 1.0 38.8 29 1SMB5943 943B 56 53.2 58.8 6.7 86 1300 0.25 1.0 42.6 26 1SMB5944 944B 62 58.9 65.1 6.0 100 1500 0.25 1.0 47.1 24 1SMB5945 945B 68 64.6 71.4 5.5 120 1700 0.25 1.0 51.7 22 1SMB5946 946B 75 71.25 78.75 5.0 140 2000 0.25 1.0 56.0 20 1SMB5947 947B 82 77.9 86.1 4.6 160 2500 0.25 1.0 62.2 18 1SMB5948 948B 91 6.45 95.55 4.1 200 3000 0.25 1.0 69.2 16 1SMB5949 949B 100 95 105 3.7 250 3100 0.25 1.0 76.0 15 1SMB5950 950B 110 1.4.5 11505 3.4 300 4000 0.25 1.0 83.6 13 1SMB5951 951B 120 114 126 3.1 380 4500 0.25 1.0 91.2 12 1SMB5952 952B 130 123.5 136.5 2.9 450 5000 0.25 1.0 98.8 11 1SMB5953 953B 150 142.5 157.5 2.5 600 6000 0.25 1.0 114.0 10 1SMB5954 954B 160 152 168 2.3 700 6500 0.25 1.0 121.6 9 1SMB5955 955B 180 171 189 2.1 900 7000 0.25 1.0 137 8 1SMB5956 956B 200 190 210 1.9 1200 8000 0.25 1.0 152 7 Notes: 11 10.45 11.55 34.1 5.5 550 0.25 12.6 31.2 6.5 550 0.25 1.0 9.1 125 13.65 28.8 7 550 0.25 1.0 9.9 115 25.0 9 600 0.25 1.0 11.4 100 23.4 10 600 0.25 1.0 12.2 93 18.9 20.8 12 650 0.25 1.0 13.7 83 19 21 18.7 14 650 0.25 1.0 15.2 75 20.9 23.1 17.0 17.5 650 0.25 1.0 16.7 66 1. Tolerance and type number designation the type numbers listed indicate a tolerance of ±5%. 2. Zener voltage (VZ) measurement Nominal Zener voltage is measured with the device junction in thermal equilibrium o with ambient temperature at 25 C. 3. Zener impedance (ZZ) derivation: ZZT and ZZK are measured by dividing the ac voltage drop across the device by the ac current applied. The specified limits are for IZ(ac) = 0.1 IZ(dc) with the ac frequency = 60 Hz. http://www.luguang.cn mail:[email protected] 1SMB5926-1SMB5956 3.0W Surface Mount Silicon Zener Diode RATINGS AND CHARACTERISTIC CURVES (1SMB5926 THRU 1SMB5956) FIG.2- MAXIMUM SURGE POWER 1000 6 PPK, PEAK SURGE POWER (WATTS) PD, MAXIMUM POWER DISSIPATION (WATTS) FIG.1- STEADY STATE POWER DERATING 5 4 TL 3 2 1 500 300 200 100 50 30 20 TA 0 0 25 75 50 100 125 10 0.1 150 0.2 0.5 FIG.3- ZENER VOLTAGE - TO 12 VOLTAGES 10 20 50 100 FIG.4- ZENER VOLTAGE - 14 TO 200 VOLTAGES 200 OVZ, TEMPERATURE COEFFICIENT (mV/oC) OVZ, TEMPERATURE COEFFICIENT (mV/oC) 5 PW, PULSE WIDTH (ms) 10 VZ @ IZT 8 6 4 2 0 -2 -4 2 4 6 10 8 VZ @ IZT 100 70 50 30 20 10 10 12 20 30 VZ, ZENER VOLTAGE (VOLTS) FIG.5- VZ = 3.3 THRU 10 VOLTS IZ, ZENER CURRENT (mA) 100 10 1 0.1 0 1 2 3 4 5 6 50 70 200 100 VZ, ZENER VOLTAGE (VOLTS) 100 IZ, ZENER CURRENT (mA) 2 1 o T, TEMPERATURE( C) 7 8 VZ, ZENER VOLTAGE (VOLTS) http://www.luguang.cn 9 10 FIG.6- VZ = 12 THRU 82 VOLTS 10 1 0.1 0 10 20 30 40 50 60 70 80 VZ, ZENER VOLTAGE (VOLTS) mail:[email protected] 90 100 1SMB5926-1SMB5956 3.0W Surface Mount Silicon Zener Diode RATINGS AND CHARACTERISTIC CURVES (1SMB5926 THRU 1SMB5956) FIG.7- EFFECT OF ZENER VOLTAGE FIG.8- EFFECT OF ZENER CURRENT 1000 IZ(dc) = 1mA 100 70 50 30 20 10 10mA 7 5 3 2 IZ(rms)= 0.1 IZ(dc) 20mA 5 10 7 20 30 50 70 o TJ = 25 C IZ(rms)= 0.1 IZ(dc) 500 ZZ, DYNAMIC IMPEDANCE (OHMS) ZZ, DYNAMIC IMPEDANCE (OHMS) 200 200 VZ = 150V 100 91V 50 62V 20 10 5.0 22V 2.0 12V 1.0 0.5 100 1 2 IZ, ZENER CURRENT (mA) 10 20 50 100 6.8V 200 500 IZ, ZENER TEST CURRENT (mA) FIG.9- CAPACITANCE CURVE FIG.10- TYPICAL PULSE RATING CURVE 1000 10 NONREPETITIVE, EXPONENTIAL o PULSE WAVEFORM, TJ = 25 C PPK, PEAK POWER (kW) MEASURED @ ZERO BIAS C, CAPACITANCE (pF) 5 MEASURED @ VZ/2 100 1 0.1 o TJ = 25 C 10 0.01 10 100 0.01 0.1 1 10 Tp, PULSE WIDTH (ms) BREAKDOWN VOLTAGE (VOLTS) FIG.12- PULSE WAVEFORM FIG.11- PULSE WAVEFORM 120 120 o TA = 25 C PW (ID) IS DEFINED AS THE POINT WHERE THE PEAK CURRENT DECAYS TO 50% OF Ipp- PEAK VALUE Ippm 80 60 0.9 IPEAK HALF VALUE - Ipp/2 40 10/1000 s WAVEFORM AS DEFINED BY R.E.A. 20 8/20 s WAVEFORM AS DEFINED BY ANSI C62.1 AND IEC 801-5, 100 Ippm, PEAK PULSE CURRENT (%) Ippm, PEAK PULSE CURRENT (%) 10 s 100 80 60 0.5 IPEAK 40 20 td T=8 s 0.1 IPEAK 0 0 0 1 2 3 4 t, TIME (ms) 5 0 0.02 T 0.04 0.06 0.08 t, TIME (ms) 20 s http://www.luguang.cn mail:[email protected] 0.1