1SMA5926 THRU 1SMA5945 Surface Mount Silicon Zener Diode Voltage Range 11 to 68 Volts 1.5 Watts Peak Power SMA/DO-214AC Features a For surface mounted applications in order to optimize board space a Low profile package a Built-in strain relief a Glass passivated junction a Low inductance a Typical IR less than 0.5A above 11V a High temperature soldering guaranteed: 260OC / 10 seconds at terminals a Plastic package has Underwriters Laboratory Flammability Classification 94V-0 .062(1.58) .056(1.43) .111(2.83) .102(2.29) .187(4.75) .167(4.25) .103(2.30) .078(1.99) Mechanical Data .012(.31) .006(.15) a Case: Molded plastic over passivated junction a Terminals: Solder plated, solderable per MIL-STD-750, Method 2026 a Polarity: Color Band denotes positive end (cathode) a Standard packaging: 12mm tape (EIA-481) .008(.20) .004(.10) .056(1.41) .035(0.90) .210(5.33) .195(4.95) aWeight: 0.002 ounces, 0.064 gram Dimensions in inches and (millimeters) Maximum Ratings and Electrical Characteristics Rating at 25ambient temperature unless otherwise specified. Type Number DC Power Dissipation at TL=75OC, measure at Zero Lead Length (Note 1) Derate above 75 OC Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method) (Note 1, 2) Operating and Storage Temperature Range Symbol PD Value 1.5 20 Units Watts mW/ OC IFSM 10.0 Amps TJ, TSTG -55 to + 150 Notes: 1. Mounted on 5.0mm (0.013mm thick) land areas. 2. Measured on 8.3ms Single Half Sine-wave or Equivalent Square Wave, Duty Cycle=4 Pulses Per Minute Maximum. 2 - 128 - O C ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted) VF=1.5V max, IF=200mA for all types. Device (Note 1) 1SMA5926 1SMA5927 1SMA5928 1SMA5929 1SMA5930 1SMA5931 1SMA5932 1SMA5933 1SMA5934 1SMA5935 1SMA5936 1SMA5937 1SMA5938 1SMA5939 1SMA5940 1SMA5941 1SMA5942 1SMA5943 1SMA5944 1SMA5945 Nominal Device Zener Voltage Test Zener Impedance Marking Vz @ Izt Current ZZK @ IZK Code Voltage IZT ZZT @ IZT (Notes 2) mA Ohms Ohms mA 926A 927A 928A 929A 930A 931A 932A 933A 934A 935A 936A 937A 938A 939A 940A 941A 942A 943A 944A 945A 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 34.1 31.2 28.8 25.0 23.4 20.8 18.7 17.0 15.6 13.9 12.5 11.4 10.4 9.6 8.7 8.0 7.3 6.7 6.0 5.5 5.5 6.5 7.0 9.0 10.0 12 14 17.5 19 23 26 33 38 45 53 67 70 86 100 120.0 550 550 550 600 600 650 650 650 700 700 750 800 850 900 950 1000 1100 1300 1500 1700 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 Maximum DC Zener Leakage Current Current IR @ VR IZM uA Volts mA (dc) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8 42.6 47.1 51.7 136 125 115 100 94 83 75 68 63 56 50 45 42 38 35 32 29 27 24 22 Notes: 1: Tolerance and Voltage Regulation Designation - the type number listed indicates a tolerance of ±5%. 2: VZ limits are to be guaranteed at thermal equilibrium. - 129 - RATINGS AND CHARACTERISTIC CURVES ( 1SMA5926 THRU 1SMA5945) FIG.1- STEADY STATE POWER DERATING FIG.2- VZ = 12 THRU 68 VOLTS 100 3.2 IZ, ZENER CURRENT (mA) PD, MAXIMUM POWER DISSIPATION (WATTS) 4 2.4 TL 1.6 0.8 10 1 TA 0 0 25 50 75 100 125 0.1 150 0 o T, TEMPERATURE( C) 10 FIG.3- ZENER VOLTAGE - 14 TO 68 VOLTS 20 30 40 50 VZ, ZENER VOLTAGE (VOLTS) 60 70 80 FIG.4- EFFECT OF ZENER VOLTAGE ZZ, DYNAMIC IMPEDANCE (OHMS) OVZ, TEMPERATURE COEFFICIENT (mV/oC) 100 VZ @ IZ1 10 10 100 VZ, ZENER VOLTAGE (VOLTS) 100 IZ(dc) = 1 mA 10 mA 10 20 mA 10 100 VZ, ZENER VOLTAGE (VOLTS) - 130 - IZ(ms) = 0.1 IZ(dc) RATINGS AND CHARACTERISTIC CURVES ( 1SMA5926 THRU 1SMA5945) FIG.5- CAPACITANCE CURVE FIG.6- TYPICAL PULSE RATING CURVE 10 MEASURED @ ZERO BIAS MEASURED @ VZ/2 100 NONREPETITIVE, EXPONENTIAL o PULSE WAVEFORM, TJ = 25 C PPK, PEAK POWER (kW) C, CAPACITANCE (pF) 1000 1 0.1 o TJ = 25 C 10 10 0.01 100 0.01 0.1 FIG.7- PULSE WAVEFORM FIG.8- PULSE WAVEFORM TA = 25oC PW (ID) IS DEFINED AS THE POINT WHERE THE PEAK CURRENT DECAYS TO 50% OF Ipp- 100 PEAK VALUE Ippm 80 60 0.9 IPEAK HALF VALUE - Ipp/2 40 10/1000 s WAVEFORM AS DEFINED BY R.E.A. 20 0.1 IPEAK 1 2 3 4 80 60 0.5 IPEAK 40 20 td 0 8/20 s WAVEFORM AS DEFINED BY ANSI C62.1 AND IEC 801-5, 100 Ippm, PEAK PULSE CURRENT (%) 10 s Ippm, PEAK PULSE CURRENT (%) 10 120 120 0 1 Tp, PULSE WIDTH (ms) BREAKDOWN VOLTAGE (VOLTS) 5 t, TIME (ms) T=8 s 0 0 0.02 T t, TIME (ms) 20 s - 131 - 0.04 0.06 0.08 0.1