1N4370A-1

• 1N746A-1 THRU 1N759-1 AVAILABLE IN PER MIL-PRF-19500/127 JAN, JANTX AND JANTXV JAN, JANTX AND JANTXV 1N746 thru 1N759A and • 1N4370A-1 THRU 1N4372A-1 AVAILABLE IN PER MIL-PRF-19500/127 • DOUBLE PLUG CONSTRUCTION • METALLURGICALLY BONDED 1N746A-1 thru 1N759A-1 and 1N4370 thru 1N4372A and 1N4370A-1 thru 1N4372A-1 MAXIMUM RATINGS Operating Temperature: -65°C to +175°C Storage Temperature: -65°C to +175°C DC Power Dissipation: 500 mW @ +50°C Power Derating: 4 mW / °C above +50°C Forward Voltage @ 200mA: 1.1 volts maximum ELECTRICAL CHARACTERISTICS @ 25°C JEDEC TYPE NUMBER (NOTE 1) NOMINAL ZENER VOLTAGE VZ @ 1ZT (NOTE 2) VOLTS 1N4370A 1N4371A 1N4372A 1N746A 1N747A 1N748A 1N749A 1N750A 1N751A 1N752A 1N753A 1N754A 1N755A 1N756A 1N757A 1N758A 1N759A 2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10.0 12.0 ZENER TEST CURRENT 1ZT MAXIMUM ZENER IMPEDANCE (NOTE 3) ZZT@ 1ZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 OHMS 30 30 29 28 24 23 22 19 17 11 7 5 6 8 10 17 30 µA MAXIMUM REVERSE CURRENT IR@ VR MAXIMUM ZENER CURRENT 1 ZM VOLTS 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 2.0 2.5 3.5 4.0 5.0 6.0 7.0 8.0 9.0 mA 155 140 125 120 110 100 90 85 75 70 65 60 55 50 45 40 35 100 60 30 5 3 2 2 5 5 5 5 2 2 1 1 1 1 FIGURE 1 DESIGN DATA CASE: Hermetically sealed glass case. DO – 35 outline. LEAD MATERIAL: Copper clad steel. LEAD FINISH: Tin / Lead THERMAL RESISTANCE: (ROJEC): 250 °C/W maximum at L = .375 inch THERMAL IMPEDANCE: (ZOJX): 35 °C/W maximum NOTE 1 NOTE 2 NOTE 3 Zener voltage tolerance on "A" suffix is +5%. No Suffix denotes + 10% tolerance, "C" suffix denotes + 2% tollerance and "D" suffix denotes + 1% tolerance. Zener voltage is measured with the device junction in thermal equilibrium at an ambient temperature of 25°C + 3°C. Zener impedance is derived by superimposing on 1ZT A 60Hz rms a.c. current equal to 10% of 1ZT POLARITY: Diode to be operated with the banded (cathode) end positive. MOUNTING POSITION: Any. 6 L AKE STREET, LAWRENCE, MASSACHUSETTS 01841 PHONE (978) 620-2600 FAX (978) 689-0803 WEBSITE: http://www.microsemi.com 13 1N746 1N4370 Pd, Rated Power Dissipation (mW) 500 400 300 200 100 0 0 25 50 thru and thru INCLUDING -1 VERSIONS 1N759A 1N4372A 75 100 125 150 175 TL, Lead temperature (C°) 3/8” from body POWER DERATING CURVE 100 50 ZENER IMPEDANCE ZZT (OHMS) 20 10 5 2 1 4 6 10 20 40 60 100 FIGURE 3 operating current (mA) ZENER IMPEDANCE VS. OPERATING CURRENT 14