1.0W Zener Diode COMCHIP www.comchiptech.com 1N4728A thru 1N4764A Nominal Zener Voltage: 3.3 to 100V Power Dissipation: 1.0W DO-41 Glass Features - 1.0 Watt Power Dissipation - 3.3V - 100V Nominal Zener Voltage - Standard VZ Tolerance is 5% 1.0 (25.4) Min. 0.107 (2.71) Max. Mechanical Data - Case: DO-41, Glass - Terminals: Solderable per MIL-STD-202, Method 208 - Polarity: Cathode Band - Approx. Weight: 0.35 grams 0.185 (4.7) Max. 1.0 (25.4) Min. 0.034 (0.863) Max. Dimensions in inches and (millimeters) Maximum Ratings @ TA = 25°C unless otherwise specified Characteristic Zener Current (see Table page 2) Power Dissipation Derate Above 50°C Thermal Resistance - Junction to Ambient Air Forward Voltage @ IF = 200 mA Operating and Storage Temperature Range Note: (Note 1) Symbol Value Unit IZ Pd / VZ mA Pd 1.0 6.67 W mW/°C RqJA 175 °C/W VF 1.2 V Tj, TSTG -65 to + 200 °C 1. Valid provided that leads are kept at TL @ 50°C with lead length = 9.5mm (3/8”) from case. MDS0312003A Page 1 1.0W Zener Diode COMCHIP www.comchiptech.com Electrical Characteristics Type Number @ TA = 25°C unless otherwise specified Nominal Zener Voltage (Note 2) Test Current Maximum Zener Impedance (Note 3) VZ @ IZT IZT ZZT @ IZT Maximum Reverse Leakage Current ZZK @ IZK IZK IR Max Surge Current 8.3ms @ VR IZS Temperature Coefficient @ IZT (V) (mA) (W) (W) (mA) (µA) (V) (mA) %/°C 1N4728A 3.3 76 10 400 1.0 100 1.0 1380 -0.08 to -0.05 1N4729A 3.6 69 10 400 1.0 100 1.0 1260 -0.08 to -0.05 1N4730A 3.9 64 9.0 400 1.0 50 1.0 1190 -0.07 to -0.02 1N4731A 4.3 58 9.0 400 1.0 10 1.0 1070 -0.07 to -0.01 1N4732A 4.7 53 8.0 500 1.0 10 1.0 970 -0.03 to +0.04 1N4733A 5.1 49 7.0 550 1.0 10 1.0 890 -0.01 to +0.04 1N4734A 5.6 45 5.0 600 1.0 10 2.0 810 0 to +0.045 1N4735A 6.2 41 2.0 700 1.0 10 3.0 730 +0.01 to +0.055 1N4736A 6.8 37 3.5 700 1.0 10 4.0 660 +0.015 to +0.06 1N4737A 7.5 34 4.0 700 0.5 10 5.0 605 +0.02 to +0.065 1N4738A 8.2 31 4.5 700 0.5 10 6.0 550 0.03 to 0.07 1N4739A 9.1 28 5.0 700 0.5 10 7.0 500 0.035 to 0.075 1N4740A 10 25 7.0 700 0.25 10 7.6 454 0.04 to 0.08 1N4741A 11 23 8.0 700 0.25 5.0 8.4 414 0.045 to 0.08 1N4742A 12 21 9.0 700 0.25 5.0 9.1 380 0.045 to 0.085 1N4743A 13 19 10 700 0.25 5.0 9.9 344 0.05 to 0.085 1N4744A 15 17 14 700 0.25 5.0 11.4 304 0.055 to 0.09 1N4745A 16 15.5 16 700 0.25 5.0 12.2 285 0.055 to 0.09 1N4746A 18 14 20 750 0.25 5.0 13.7 250 0.06 to 0.09 1N4747A 20 12.5 22 750 0.25 5.0 15.2 225 0.06 to 0.09 1N4748A 22 11.5 23 750 0.25 5.0 16.7 205 0.06 to 0.095 1N4749A 24 10.5 25 750 0.25 5.0 18.2 190 0.06 to 0.095 1N4750A 27 9.5 35 750 0.25 5.0 20.6 170 0.06 to 0.095 1N4751A 30 8.5 40 1000 0.25 5.0 22.8 150 0.06 to 0.095 1N4752A 33 7.5 45 1000 0.25 5.0 25.1 135 0.06 to 0.095 1N4753A 36 7.0 50 1000 0.25 5.0 27.4 125 0.06 to 0.095 1N4754A 39 6.5 60 1000 0.25 5.0 29.7 115 0.06 to 0.095 1N4755A 43 6.0 70 1500 0.25 5.0 32.7 110 0.06 to 0.095 1N4756A 47 5.5 80 1500 0.25 5.0 35.8 95 0.06 to 0.095 1N4757A 51 5.0 95 1500 0.25 5.0 38.8 90 0.06 to 0.095 1N4758A 56 4.5 110 2000 0.25 5.0 42.6 80 0.06 to 0.095 1N4759A 62 4.0 125 2000 0.25 5.0 47.1 70 0.06 to 0.095 1N4760A 68 3.7 150 2000 0.25 5.0 51.7 65 0.06 to 0.095 1N4761A 75 3.3 175 2000 0.25 5.0 56.0 60 0.06 to 0.095 1N4762A 82 3.0 200 3000 0.25 5.0 62.2 55 ¾ 1N4763A 91 2.8 250 3000 0.25 5.0 69.2 50 ¾ 1N4764A 100 2.5 350 3000 0.25 5.0 76.0 45 ¾ Notes: 2. Measured under thermal equilibrium and dc (IZT) test conditions. 3. The Zener impedance 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. Zener impedance is measured at two points to insure a sharp knee on the breakdown curve and to eliminate unstable units. MDS0312003A Page 2 1.0W Zener Diode COMCHIP www.comchiptech.com Ratings and Characteristic Curves (TA = 25°C unless otherwise noted) Pd, TOTAL POWER DISSIPATION (W) 1.0 250 0.8 200 0.6 150 0.4 100 0.2 50 0 0 40 80 120 160 200 0 5 30 15 25 20 10 l, Lead Length (mm) Fig. 2 Typical Thermal Resistance vs. Lead Length 0 TA, AMBIENT TEMPERATURE Fig.1 Power Dissipation vs Ambient Temperature 1000 1000 f = 1MHz TA = 25C Cj, DIODE CAPACITANCE (pF) IZ = 1mA 2mA 100 100 VR = 0V 5mA 10mA VR = 2V VR = 5V VR = 20V 10 20mA VR = 30V 10 1 1 0 10 20 30 40 50 VZ, ZENER VOLTAGE (V) Fig.3, Junction Capacitance vs Zener Voltage MDS0312003A 60 1 10 100 VZ, ZENER VOLTAGE (V) Fig. 4 Typical Zener Impedance vs. Zener Voltage Page 2