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1N749A Dataheets PDF



Part Number 1N749A
Manufacturers Vishay Siliconix
Logo Vishay Siliconix
Description Zener Diodes
Datasheet 1N749A Datasheet1N749A Datasheet (PDF)

VISHAY 1N746A to 1N759A Vishay Semiconductors Zener Diodes \ Features • Silicon Planar Power Zener Diodes. • Standard Zener voltage tolerance is ± 5 % for "A" suffix. 94 9367 Mechanical Data Case: DO-35 Glass Case Weight: approx. 130 mg Packaging codes/options: TR / 10k per 13 " reel, 30k/box TAP / 10k per Ammo tape (52 mm tape), 30k/box Absolute Maximum Ratings Tamb = 25 °C, unless otherwise specified Parameter Zenner current (see Table "Characteristics") Power dissipation 1) Test condi.

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VISHAY 1N746A to 1N759A Vishay Semiconductors Zener Diodes \ Features • Silicon Planar Power Zener Diodes. • Standard Zener voltage tolerance is ± 5 % for "A" suffix. 94 9367 Mechanical Data Case: DO-35 Glass Case Weight: approx. 130 mg Packaging codes/options: TR / 10k per 13 " reel, 30k/box TAP / 10k per Ammo tape (52 mm tape), 30k/box Absolute Maximum Ratings Tamb = 25 °C, unless otherwise specified Parameter Zenner current (see Table "Characteristics") Power dissipation 1) Test condition Tamb = 75 °C Symbol Ptot Value 500 1) Unit W TL is measured that leads at a distance of 3/8 " from case are kept at ambient temperature Maximum Thermal Resistance Tamb = 25 °C, unless otherwise specified Parameter Thermal resistance junction to ambient air Maximum junction temperature Storage temperature range 1) Test condition Symbol RθJA Tj TS Value 300 1) Unit °C/W °C °C 175 - 65 to + 175 Valid provided that leads at a distance of 3/8 " from case are kept at ambient temperature Document Number 85756 Rev. 2, 04-Apr-03 www.vishay.com 1 1N746A to 1N759A Vishay Semiconductors Electrical Characteristics 1N746A to 1N759A Partnumber Nominal Zener Voltage VZ @ IZT 3) V 1N746A 1N747A 1N748A 1N749A 1N750A 1N751A 1N752A 1N753A 1N754A 1N755A 1N756A 1N757A 1N758A 1N759A 1)The VISHAY Test Current Maximum Dynamic Impedance ZZT @ IZT 1) Ω 28 24 23 22 19 17 11 7 5 6 8 10 17 30 Maximum Regulator Current IZM2) mA 110 100 95 85 75 70 65 60 55 50 45 40 35 30 Maximum Reverse Leakage Current (IR @ VR = 1V) Tamb = 25 °C µA 10 10 10 2 2 1 1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 Tamb = 150 °C µA 30 30 30 30 30 20 20 20 20 20 20 20 20 20 IZT mA 20 20 20 20 20 20 20 20 20 20 20 20 20 20 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 12 Zener impedance is derived from the 1 kHz AC voltage which results when an AC current having an RMS value equal to 10 % of the Zener current (IZT) is superimposed on IZT.Zener impedance 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 3/8 " from case are kept at ambient temperature. with device junction in thermal equilibrium. 3)Measured Package Dimensions in mm Cathode Identification technical drawings according to DIN specifications 94 9366 ∅0.55 max. ∅1.7 max. Standard Glass Case 54 A 2 DIN 41880 JEDEC DO 35 Weight max. 0.3g 26 min. 3.9 max. 26 min. www.vishay.com 2 Document Number 85756 Rev. 2, 04-Apr-03 VISHAY Ozone Depleting Substances Policy Statement It is the policy of Vishay Semiconductor GmbH to 1N746A to 1N759A Vishay Semiconductors 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operatingsystems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate.


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