50 A, LOW OPERATING CURRENT, ZENER DIODES 1N4678 DOUBLE PLUG CONSTRUCTION thru METALLURGICALLY BONDED 1N4717 MAXIMUM RATINGS Operating Temperature: -65C to +175C Storage Temperature: -65C to +175C Power Dissipation: 500mW +50C DC Power Derating: 4 mW / C above +50C Forward Voltage: 1.1 Volts maximum 200 mA ELECTRICAL CHARACTERISTICS 25C, unless otherwise specied. CDI NOMINAL ZENER MAXIMUM MAXIMUM REVERSE MAXIMUM TYPE ZENER TEST VOLTAGE LEAKAGE DC ZENER NUMBER VOLTAGE CURRENT REGULATION CURRENT CURRENT V l V l V l Z ZT Z R R ZM (Note 1) (Note 2) VOLTS A VOLTS A VOLTS mA 1N4678 1.8 50 0.70 7.5 1.0 120.0 1N4679 2.0 50 0.70 5.0 1.0 110.0 1N4680 2.2 50 0.75 4.0 1.0 100.0 1N4681 2.4 50 0.80 2.0 1.0 95.0 1N4682 2.7 50 0.85 1.0 1.0 90.0 1N4683 3.0 50 0.90 0.8 1.0 85.0 1N4684 3.3 50 0.95 7.5 1.5 80.0 1N4685 3.6 50 0.95 7.5 2.0 75.0 1N4686 3.9 50 0.97 5.0 2.0 70.0 1N4687 4.3 50 0.99 4.0 2.0 65.0 1N4688 4.7 50 0.99 10.0 3.0 60.0 1N4689 5.1 50 0.97 10.0 3.0 55.0 1N4690 5.6 50 0.96 10.0 4.0 50.0 1N4691 6.2 50 0.95 10.0 5.0 45.0 1N4692 6.8 50 0.90 10.0 5.1 35.0 1N4693 7.5 50 0.75 10.0 5.7 31.8 1N4694 8.2 50 0.50 1.0 6.2 29.0 FIGURE 1 1N4695 8.7 50 0.10 1.0 6.6 27.4 1N4696 9.1 50 0.08 1.0 6.9 26.2 1N4697 10.0 50 0.10 1.0 7.6 24.8 1N4698 11.0 50 0.11 0.05 8.4 21.6 1N4699 12.0 50 0.12 0.05 9.1 20.4 1N4700 13.0 50 0.13 0.05 9.8 19.0 1N4701 14.0 50 0.14 0.05 10.6 17.5 1N4702 15.0 50 0.15 0.05 11.4 16.3 DESIGN DATA 1N4703 16.0 50 0.16 0.05 12.1 15.4 1N4704 17.0 50 0.17 0.05 12.9 14.5 1N4705 18.0 50 0.18 0.05 13.6 13.2 1N4706 19.0 50 0.19 0.05 14.4 12.5 CASE: Hermetically sealed glass 1N4707 20.0 50 0.20 0.01 15.2 11.9 1N4708 22.0 50 0.22 0.01 16.7 10.8 case. DO 35 outline. 1N4709 24.0 50 0.24 0.01 18.2 9.9 1N4710 25.0 50 0.25 0.01 19.0 9.5 1N4711 27.0 50 0.27 0.01 20.4 8.8 LEAD MATERIAL: Copper clad steel. 1N4712 28.0 50 0.28 0.01 21.2 8.5 1N4713 30.0 50 0.30 0.01 22.8 7.9 LEAD FINISH: Tin / Lead 1N4714 33.0 50 0.33 0.01 25.0 7.2 1N4715 36.0 50 0.36 0.01 27.3 6.6 1N4716 39.0 50 0.39 0.01 29.6 6.1 THERMAL RESISTANCE: (R ): OJEC 1N4717 43.0 50 0.43 0.01 32.6 5.5 250 C/W maximum at L = .375 inch THERMAL IMPEDANCE: (Z ): 35 OJX NOTE 1 The JEDEC type numbers shown above have a standard tolerence of +5% of the C/W maximum nominal Zener volume. V is measured with the diode in thermal equilibrium at Z 25C + 3C. POLARITY: Diode to be operated with the banded (cathode) end positive. NOTE 2 Vz 100 A minus Vz 10 A. MOUNTING POSITION: ANY. 6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (978) 689-0803 WEBSITE: 5.1 VOLT 3.3 VOLT 27 VOLT 11 VOLT 6.2 VOLT 1N4678 thru 1N4717 FIGURE 2 500 400 300 200 100 0 0 25 50 75 100 125 150 175 T , Lead temperature (C) 3/8 from body L POWER DERATING CURVE 1000 500 400 300 200 100 50 40 30 20 10 5 4 3 2 1 .1 .2 .3 .4 .5 1 2 5 10 20 30 40 50 100 OPERATING CURRENT l (mA) ZT FIGURE 3 ZENER IMPEDANCE VS. OPERATING CURRENT 48 ZENER IMPEDANCE Z (OHMS) ZT Pd, Rated Power Dissipation (mW)