1SMA4737 - 1SMA200Z 1.25 Watts Surface Mount Silicon Zener Diode SMA/DO-214AC Features For surface mounted applications in order to optimize board space Low profile package Built-in strain relief Glass passivated junction Low inductance Typical IR less than 5.0uA above 7.5V High temperature soldering guaranteed: 260oC / 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 Terminals: Pure tin plated lead free, solderable per MIL-STD-750, Method 2025 Polarity:Color Band denotes positive end (cathode) Standard packaging: 12mm tape (EIA-481) Weight: 0.002 ounces, 0.064 gram Maximum Ratings and Electrical Characteristics Rating at 25 oC ambient temperature unless otherwise specified. Type Number o Power Dissipation, RthJA<30 K/W, Tamb=60 C o Power Dissipation, RthJA<100 K/W, Tamb=25 C Non Repetitive Peak Surge Power Dissipation(Note 1) Non Repetitive Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method) Operating and Storage Temperature Range Notes: Symbol PD PD PZSM Value 3.0 1.25 60 Units Watts Watts Watts IFSM 10.0 Amps o -55 to + 150 C o 1. Non Repetitive Peak surge PD Test Conditions: tp=100uS sq. pulse, Tj=25 C prior to surge. - 586 - TJ, TSTG Version: C08 ELECTRICAL CHARACTERISTICS (TA=25OC unless otherwise noted) VF=1.2V max, IF=200mA for all types. Nominal Device (Note 1) Device Marking Code 1SMA4737 1SMA4738 1SMA4739 1SMA4740 1SMA4741 737A 738A 739A 740A 741A 1SMA4742 742A 12 21 9 700 0.25 5.0 9.1 380 1SMA4743 743A 13 19 10 700 0.25 5.0 9.9 344 1SMA4744 744A 15 17 14 700 0.25 5.0 11.4 304 1SMA4745 745A 16 15.5 16 700 0.25 5.0 12.2 285 1SMA4746 746A 18 14.0 20 750 0.25 5.0 13.7 250 1SMA4747 747A 20 12.5 22 750 0.25 5.0 15.2 225 1SMA4748 748A 22 11.5 23 750 0.25 5.0 16.7 205 1SMA4749 749A 24 10.5 25 750 0.25 5.0 18.2 190 1SMA4750 750A 27 9.5 35 750 0.25 5.0 20.6 170 1SMA4751 751A 30 8.5 40 1000 0.25 5.0 22.8 150 1SMA4752 752A 33 7.5 45 1000 0.25 5.0 25.1 135 1SMA4753 753A 36 7.0 50 1000 0.25 5.0 27.4 125 1SMA4754 754A 39 6.5 60 1000 0.25 5.0 29.7 115 1SMA4755 755A 43 6.0 70 1500 0.25 5.0 32.7 110 1SMA4756 756A 47 5.5 80 1500 0.25 5.0 35.8 95 1SMA4757 757A 51 5.0 95 1500 0.25 5.0 38.8 90 1SMA4758 758A 56 4.5 110 2000 0.25 5.0 42.6 80 1SMA4759 759A 62 4.0 125 2000 0.25 5.0 47.1 70 1SMA4760 760A 68 3.7 150 2000 0.25 5.0 51.7 65 1SMA4761 761A 75 3.3 175 2000 0.25 5.0 56.0 60 1SMA4762 762A 82 3.0 200 3000 0.25 5.0 62.2 55 1SMA4763 763A 91 2.8 250 3000 0.25 5.0 69.2 50 1SMA4764 764A 100 2.5 350 3000 0.25 5.0 76.0 45 1SMA110Z 110A 110 2.3 450 4000 0.25 5.0 83.6 - 1SMA120Z 120A 120 2.0 550 4500 0.25 5.0 91.2 - 1SMA130Z 130A 130 1.9 700 5000 0.25 5.0 98.8 - 1SMA150Z 150A 150 1.7 1000 6000 0.25 5.0 114.0 - 1SMA160Z 160A 160 1.6 1100 6500 0.25 5.0 121.6 - 1SMA180Z 180A 180 1.4 1200 7000 0.25 5.0 136.8 - 1SMA200Z 200A 200 1.2 1500 8000 0.25 5.0 152.0 - Zener Voltage Test Vz @ Izt Voltage (Notes 2 & 3) 7.5 8.2 9.1 10 11 Current IZT mA 100 100 50 50 23 Maximum Zener Impedance (Note 4) Leakage Current ZZT @ IZT Ohms 3 3.5 4 4 8 ZZK @ IZK Ohms mA 700 0.25 700 0.25 700 0.25 700 0.25 700 0.25 IR @ VR uA Max Volts 5.0 5.0 5.0 6.0 5.0 7.0 5.0 7.5 5.0 8.4 Surge Current @ TA = 25OC Ir - mA (Note 5) 607 555 500 455 414 Notes: 1: Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener voltage of ±5%. 2. Specials Available Include: A. Nominal zener voltages between the voltages shown and tighter voltage tolerances. B. Matched sets. 3. Zener Voltage (VZ) Measurement. Guarantees the zener voltage when messured at 90 seconds while maintaining the lead temperature (TL) at 30OC± 1OC, from the diode body. 4. Zener Impedance (ZZ) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having and rms value equal to 10% of the dc zener current (IZT or IZK) is superimposed on IZT or IZK. 5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is maximum peak, non-repetitive reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, IZT, per JEDEC registration; however, actual device capability is as described in Figure 10. - 587 - Version: C08 RATINGS AND CHARACTERISTIC CURVES (1SMA4737 THRU 1SMA200Z) FIG.2- TYPICAL FORWARD CHARACTERISTICS 1000 1.25 MINIMUM MAXIMUM 500 IF, FORWARD CURRENT (mA) PD, MAXIMUM POWER DISSIPATION (WATTS) FIG.1- POWER TEMPERATURE DERATING CURVE 1.0 0.75 0.50 0.25 200 100 50 20 10 70 oC o 150 C o 25 C 5 2 o 0 C 1 0 0 20 40 60 80 100 120 140 160 180 0.4 200 0.5 o AMBIENT TEMPERATURE( C) FIG.3- EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE 10000 7000 5000 100 47V 2000 27V 1000 700 500 0.8V 200 50 20 10 2 1 0.1 0.2 0.5 1 2 5 10 20 50 100 IZ, ZENER CURRENT (mA) FIG.4- EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE ZZ, DYNAMIC IMPEDANCE (OHMS) 0.8 0.9 1.0 1.1 TYPICAL LEAKAGE CURRENT AT 80% OF NOMINAL BREAKDOWN VOLTAGE 100 70 50 5 1000 700 500 o TJ = 25 C IZ(rms)= 0.1 IZ(dc) f = 1KHz IZ = 1.0mA 200 100 70 50 5.0mA 20 20mA IR, LEAKAGE CURRENT ( A) ZZ, DYNAMIC IMPEDANCE (OHMS) o TJ = 25 C IZ(rms)= 0.1 IZ(dc) f = 1KHz 200 0.7 FIG.5- TYPICAL LEAKAGE CURRENT 1000 500 0.6 VF, FORWARD VOLTAGE (VOLTS) 20 10 7 5 2 1 0.7 0.5 o +125 C 0.2 0.1 0.07 0.05 0.02 o 0.01 0.007 0.005 10 7 5 +25 C 0.002 2 0.001 1 1 2 3 5 7 10 20 IZ, ZENER CURRENT (mA) 30 50 70 100 3 4 5 6 7 8 9 10 11 12 13 14 15 VZ, NOMINAL ZENER VOLTAGE (VOLTS) Version:C08 RATINGS AND CHARACTERISTIC CURVES (1SMA4737 THRU 1SMA200Z) FIG.6- TYPICAL CAPACITANCE versus Vz FIG.7- TEMPERATURE COEFFICIENTS 400 300 OVZ, TEMPERAYURE COEFFICIENT (mV/oC) a-RANGE FOR UNITS TO 12 VOLTS C, CAPACITANCE (pF) 200 0V BIAS 1.0V BIAS 100 10 8 50% OF BREAKDOWN BIAS 4 1 10 100 +12 +10 +8.0 +6.0 +4.0 +2.0 VZ @ IZT RANGE 0 -2.0 -4.0 2 VZ, FORWARD VOLTAGE (VOLTS) 3 4 6 5 7 8 9 10 11 12 VZ, ZENER VOLTAGE (VOLTS) FIG.8- TEMPERATURE COEFFICIENTS FIG.9- EFFECT OF ZENER CURRENT OVZ, TEMPERAYURE COEFFICIENT (mV/oC) b-RANGE FOR UNITS 11 TO 100 VOLTS OVZ, TEMPERAYURE COEFFICIENT (mV/oC) 100 70 50 30 20 VZ @ IZT RANGE 10 7 5 3 2 1 +6.0 VZ @ IZT TJ=25 oC +4.0 +2.0 20mA 0 0.01mA 1.0mA -2.0 NOTE: BELOW 3 VOLTS AND ABOVE a VOLTS CHANGES IN ZENER CURRENT OO NOT AFFECT TEMPERATURE COEFFICIENTS -4.0 3 10 20 30 50 70 4 100 5 6 7 8 VZ, ZENER VOLTAGE (VOLTS) VZ, ZENER VOLTAGE (VOLTS) Ppk, PEAK SURGE POWER IWATTSO FIG.10- MAXIMUM SURGE POWER 100 70 50 0.8V -10V 30 20 5% D 3 11V -9 -RE 1V N PET UTY C ITIV ON- REP E RECTANGULAR WAVEFORM o TJ = 25 C PRIOR TO INITIAL PULSE ETIT IVE YCLE 10% DUTY 10 7 5 NON CYCLE 20% DUTY CYCLE 2 1 0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 20 50 100 200 500 1000 PW, PULSE WIDTH (ms) Version: C08