1SMA4749

1SMA4741 THRU 1SMA4764 Surface Mount Silicon Zener Diode Voltage Range 11 to 200 Volts 1.0 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 5.0
A above 11V a High temperature soldering guaranteed: O 260 C / 10 seconds at terminals a Plastic package has Underwriters Laboratory Flammability Classification 94V-0 Mechanical Data .062(1.58) .056(1.43) .111(2.83) .102(2.58) .187(4.75) .167(4.25) .103(2.61) .078(1.99) .012(.31) .006(.15) .008(.20) .004(.10) a Case: Molded plastic over passivated junction a Terminals: Solder plated solderable per MIL-STD-750, Method 2025 a Polarity:Color Band denotes positive end (cathode) a Standard packaging: 12mm tape (EIA-481) .056(1.41) .035(0.90) .210(5.33) .195(4.95) Dimensions in inches and (millimeters) aWeight: 0.002 ounces, 0.064 gram Maximum Ratings and Electrical Characteristics Rating at 25
ambient temperature unless otherwise specified. Type Number Peak Power Dissipation at TA=50OC, Derate above 50 OC (Note 1) Peak Forward Surge Current, 8.3 ms Single Half Sine-wave Superimposed on Rated Load (JEDEC method) (Note 2) Operating and Storage Temperature Range Symbol PD Value 1.0 6.67 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 O C E LE C TR IC A L C H A R A C TE R IS TIC S (TA =25 O C unless otherw ise noted) V F=1.2V m ax, IF=200m A for all types. Device (Note 1) 1SM A4741 1SM A4742 1SM A4743 1SM A4744 1SM A4745 1SM A4746 1SM A4747 1SM A4748 1SM A4749 1SM A4750 1SM A4751 1SM A4752 1SM A4753 1SM A4754 1SM A4755 1SM A4756 1SM A4757 1SM A4758 1SM A4759 1SM A4760 1SM A4761 1SM A4762 1SM A4763 1SM A4764 Device M arking Code Nom inal Zener Voltage Vz @ Izt Voltage (Notes 2 & 3) 741A 742A 743A 744A 745A 746A 747A 748A 749A 750A 751A 752A 753A 754A 755A 756A 757A 758A 759A 760A 761A 762A 763A 764A 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 Test Current M axim um Zener Im pedance (Note 4) Leakage Current ZZK @ IZK IR @ VR IZT ZZT @ IZT mA Ohm s Ohm s mA uA Max Volts 23 21 19 17 15.5 14.0 12.5 11.5 10.5 9.5 8.5 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.7 3.3 3.0 2.8 2.5 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 200 250 350 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 3000 3000 3000 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 0.25 0.25 0.25 0.25 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 5.0 5.0 5.0 5.0 5.0 Surge Current @ O TA = 25 C Ir - m A (Note 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 56.0 62.2 69.2 76.0 414 380 344 304 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 55 50 45 Notes: 1. Tolerance and Type Num ber Designation. The type num bers listed have a standard tolerance on the nom inal zener voltage of ±5% . 2. Specials Available Include: A. Nom inal zener voltages between the voltages shown and tighter voltage tolerances. B. M atched sets. 3. Zener Voltage (V Z ) M easurem ent. Guarantees the zener voltage when m essured at 90 seconds while m aintaining O O the lead tem perature (T L ) at 30 C± 1 C, from the diode body. 4. Zener Im pedance (ZZ) Derivation. The zener im pedance is derived from the 1000 cycle ac voltage, which results when an ac current having and rm s value equal to 10% of the dc zener current (IZT or IZK) is superim posed on IZT or IZK. 5. Surge Current (Ir) Non-Repetitive. The rating listed in the electrical characteristics table is m axim um peak, non-repetitive, reverse surge current of 1/2 square wave or equivalent sine wave pulse of 1/120 second duration superim posed on the test current, IZT, per JEDEC registration; however, actual device capability is as described in Figure 10. RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA4764) 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 o 70 C o 150 C 2.0 0 20 40 60 80 100 120 140 160 180 o 0 C 1.0 0.4 200 0.5 o AMBIENT TEMPERATURE( C) 10000 7000 5000 100 27V 1.0 1.1 200 0.8V 10 0.9 1000 700 500 50 20 0.8 TYPICAL LEAKAGE CURRENT AT 80% OF NOMINAL BREAKDOWN VOLTAGE 2000 47V 100 70 50 5.0 2.0 1.0 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 IZ, ZENER CURRENT (mA) FIG.4- EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE 1000 700 500 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) FIG.3- EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE ZZ, DYNAMIC IMPEDANCE (OHMS) o 25 C 5.0 20 10 7.0 5.0 2.0 1.0 0.7 0.5 o +125 C 0.2 o TJ = 25 C IZ(rms)= 0.1 IZ(dc) f = 1KHz IZ = 1.0mA 200 100 70 50 5.0mA 20 20mA 0.1 0.07 0.05 0.02 o 0.01 0.007 0.005 10 7.0 5.0 +25 C 0.002 2.0 0.001 3.0 1.0 1.0 2.0 3.0 5.0 7.0 10 20 IZ, ZENER CURRENT (mA) 30 50 70 100 4.0 5.0 6.0 7.0 8.0 9.0 10 11 12 VZ, NOMINAL ZENER VOLTAGE (VOLTS) 13 14 15 RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA4764) FIG.6- TYPICAL CAPACITANCE versus Vz FIG.7- TEMPERATURE COEFFICIENTS 400 300 C, CAPACITANCE (pF) 0V BIAS 1.0V BIAS 100 10 8 50% OF BREAKDOWN BIAS 4 1.0 10 100 OVZ, TEMPERAYURE COEFFICIENT (mV/oC) a-RANGE FOR UNITS TO 12 VOLTS 200 VZ, FORWARD VOLTAGE (VOLTS) +12 +10 +8.0 +6.0 +4.0 +2.0 VZ @ IZT RANGE 0 -2.0 -4.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10 11 12 VZ, ZENER VOLTAGE (VOLTS) FIG.7- TEMPERATURE COEFFICIENTS FIG.8- EFFECT OF ZENER CURRENT OVZ, TEMPERAYURE COEFFICIENT (mV/oC) OVZ, TEMPERAYURE COEFFICIENT (mV/oC) b-RANGE FOR UNITS 11 TO 100 VOLTS 100 70 50 30 20 RANGE 10 VZ @ IZT 7.0 5.0 3.0 2.0 1.0 10 20 30 50 VZ, ZENER VOLTAGE (VOLTS) 70 100 +6.0 VZ @ IZT TA25 oC +4.0 +2.0 20mA 0 0.01mA 1.0mA -2.0 -4.0 NOTE: BELOW 3 VOLTS AND ABOVE a VOLTS CHANGES IN ZENER CURRENT OO NOT AFFECT TEMPERATURE COEFFICIENTS 3.0 4.0 5.0 6.0 VZ, ZENER VOLTAGE (VOLTS) 7.0 8.0 RATINGS AND CHARACTERISTIC CURVES ( 1SMA4741 THRU 1SMA4764) Ppk, PEAK SURGE POWER IWATTSO FIG.9- MAXIMUM SURGE POWER 100 70 50 30 RECTANGULAR WAVEFORM o TJ = 25 C PRIOR TO INITIAL PULSE 11V-91V NON-REPETITIVE 5% DUTY CYCLE 0.8V-10V NON-REPETITIVE 20 10 10% DUTY CYCLE 7.0 5.0 20% DUTY CYCLE 3.0 2.0 1.0 0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 200 500 1000 PW, PULSE WIDTH (ms) FIG.10- BREAKDOWN CHARACTERISTICS TJ= CONSTANT (PULSED) 741A mA 60 744A 746A 748A TJ=25A 50 750A IZ 40 752A TEST CURRENT IZ 25mA 754A 30 756A 10mA 20 10 0 0 5 10 15 20 25 30 35 40 45 50V VZ FIG.11- BREAKDOWN CHARACTERISTICS TJ= CONSTANT (PULSED) mA 20 758A TJ=25A 760A IZ TEST CURRENT IZ 762A 10mA 764A 10 5mA 0 0 50 100 150 200V VZ Rev. 1 03/2003