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ZM4742A Datasheet(PDF) 1 Page - Diodes Incorporated |
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ZM4742A Datasheet(HTML) 1 Page - Diodes Incorporated |
1 / 3 page DS18009 Rev. 3 - 3 1 of 3 ZM4728A-ZM4764A ZM4728A - ZM4764A 1.0W SURFACE MOUNT ZENER DIODE Features · Case: MELF, Glass · Terminals: Solderable per MIL-STD-202, Method 208 · Polarity: Cathode Band · Approx. Weight: 0.25 grams Mechanical Data · 1.0W Power Dissipation · 3.9V - 100V Nominal Zener Voltages · Standard VZ Tolerance is 5% @ TA = 25°C unless otherwise specified Characteristic Symbol Value Unit Zener Current (see Table page 2) IZ Pd/Vz mA Power Dissipation @ TA = 25°C Pd 1W Thermal Resistance - Junction to Ambient Air RqJA 170 K/W Forward Voltage @ IF = 200 mA VF 1.2 V Operating & Storage Temperature Range Tj,TSTG -65 to +200 °C MELF Dim Min Max A 4.80 5.20 B 2.40 2.60 C 0.55 Nominal All Dimensions in mm C A B Maximum Ratings Notes: 1. Measured under thermal equilibrium and DC (IZT) test conditions. 2. The Zener impedance is derived from the 60Hz 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. NOT RECOMMENDED FOR NEW DESIGN, USE SMAZ SERIES (SMA PACKAGE) |
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