1N4728A

1N4727...1N4761 Silicon Planar Power Zener Diodes for use in stabilizing and clipping circuits with high power rating. Standard zener voltage tolerance is ±10%. Add suffix "A" for ±5% tolerance and suffix "B" for ±2% tolerance. Other tolerances are available upon request. Max. 0.7 Min. 25.4 Max. 2.8 Black Cathode Band Black Part No. Black "ST" Brand XXX Max. 4.2 ST Min. 25.4 Glass Case DO-41 Dimensions in mm Absolute Maximum Ratings (Ta = 25 OC) Parameter Power Dissipation Value Ptot Junction Temperature Storage Temperature Range 1) Symbol 1 Unit 1) W Tj 200 O C Tstg - 65 to + 200 O C Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. Characteristics at Ta = 25 OC Parameter Thermal Resistance Junction to Ambient Air Forward Voltage at IF = 200 mA 1) Symbol RthA Max. Unit 1) K/W 170 VF 1.2 V Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. ® Dated : 10/09/2009 1N4727...1N4761 Characteristics at Ta = 25 OC VZnom at lZT ZZT ZZK at IZK IR at VR Maximum Surge Current 4) at Ta = 25 OC (V) 3 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 (mA) 83 76 69 64 58 53 49 45 41 37 34 31 28 25 23 21 19 17 15.5 14 12.5 11.5 10.5 9.5 8.5 7.5 7 6.5 6 5.5 5 4.5 4 3.7 3.3 Max. (Ω) 10 10 10 9 9 8 7 5 2 3.5 4 4.5 5 7 8 9 10 14 16 20 22 23 25 35 40 45 50 60 70 80 95 110 125 150 175 Max. (Ω) 400 400 400 400 400 500 550 600 700 700 700 700 700 700 700 700 700 700 700 750 750 750 750 750 1000 1000 1000 1000 1500 1500 1500 2000 2000 2000 2000 (mA) 1 1 1 1 1 1 1 1 1 1 0.5 0.5 0.5 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 Max. (µA) 150 150 100 100 50 10 10 10 10 10 10 10 10 10 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 (V) 1 1 1 1 1 1 1 2 3 4 5 6 7 7.6 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 IZSM (mA) 1375 1375 1260 1190 1070 970 890 810 730 660 605 550 500 454 414 380 344 304 285 250 225 205 190 170 150 135 125 115 110 95 90 80 70 65 60 Zener Voltage Type 1N4727 1N4728 1N4729 1N4730 1N4731 1N4732 1N4733 1N4734 1N4735 1N4736 1N4737 1N4738 1N4739 1N4740 1N4741 1N4742 1N4743 1N4744 1N4745 1N4746 1N4747 1N4748 1N4749 1N4750 1N4751 1N4752 1N4753 1N4754 1N4755 1N4756 1N4757 1N4758 1N4759 1N4760 1N4761 3) Dynamic Resistance 1) Reverse Current Maximum Regulator Current 2) IZM (mA) 275 275 252 234 217 193 178 162 146 133 121 110 100 91 83 76 69 61 57 50 45 41 38 34 30 27 25 23 22 19 18 16 14 13 12 1) The dynamic resistance is derived from the 60 Hz AC voltage which results when an AC current having an RMS value equal to 10% of the Zener Current (IZT or IZK) is superimposed on IZT or IZK. Dynamic resistance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. 2) Valid provided that leads at a distance of 8 mm from case are kept at ambient temperature. 3) Tested with pulses tp = 20 ms. 4) 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. ® Dated : 10/09/2009 0 10 20 20 30 40 50 60 70 8 10 80 9 90 IN4764 7 IN4763 6 IN4762 5 IN4761 40 30 IN4741 IN4740 IN4739 IN4738 IN4737 IN4736 50 IN4760 30 4 IN4758 50 3 IN4755 2 IN4757 40 1 IN4759 Iz IN4735 IN4734 IN4733 IN4731 IN4732 IN4730 IN47 29 60 IN4756 70 IN4727 IN4728 90 IN4750 IN4751 IN4752 0 IN4746 IN4747 IN4748 IN4749 80 IN4753 IN4754 mA IN4743 IN4744 0 IN4745 Iz IN4742 1N4727...1N4761 Tj =constant(pulsed) Breakdowm characteristics mA 100 IN... Tj =25 oC 20 10 10 100 11 12 Vz IN... Tj =25 oC 0 110 Dated : 10/09/2009 120 Vz ® 1N4727...1N4761 1.0 250 200 Thermal Resistance Junction to Ambient (°C/W) Pd. Total Power Dissipation (W) 0.8 0.6 0.4 100 50 R JA 0.2 150 0 0 0 100 200 1000 10 15 20 25 30 Differential Zener Impedance (Ω) 1000 f=1MHz TA=25°C Cj , Diode Capacitance (pF) 5 I, Lead Length (mm) Fig. 2 Typical Thermal Resistance vs. Lead Length TA, Ambient Temperature Fig. 1 Power Dissipation vs Ambient Temperature 100 VR=0V VR=2V VR=5V VR=20V VR=30V 10 1 0 0 10 20 30 40 50 60 Vz, Zener Voltage (V) Fig. 3 Junction Capacitance vs Zener Voltage Iz=1mA 2mA 100 5mA 10mA 20mA 10 1 1 10 100 Vz, Zener Voltage (V) Fig. 4 Typical Zener Impedance vs. Zener Voltage ® Dated : 10/09/2009