Homedatasheet1N4749A

1N4749A Datasheet

Silicon Power Zener Diodes
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Description

Features, Applications

Features

Silicon Planar Power Zener Diodes For use in stabilizing and clipping circuits with high power rating. Standard Zener voltage tolerance suffix "A" for 5 % tolerance. Other Zener voltages and tolerances are available upon request.

Applications
Packaging Codes/Options: / 5k per 13 " reel , 25k/box TAP / 5k per Ammo mag. (52 mm tape), 25k/box

Tamb = 25 �C, unless otherwise specified Parameter Power dissipation Z-current Test condition Tamb 50 �C Symbol Ptot IZ Value 1 PV/VZ Unit W mA

Tamb = 25 �C, unless otherwise specified Parameter Junction temperature Storage temperature range Junction ambient TL = constant Test condition Symbol Tj Tstg RthJA Value 200 100 Unit �C K/W

Tamb = 25 �C, unless otherwise specified Parameter Forward voltage Test condition 200 mA Symbol VF Min Typ. Max 1.2 Unit V

Based on dc-measurement at theral equilibrium while maitaining the lead temperature (TL) + 1 �C, mm (3/8 from the diode body.

Valid provided that electrodes at a distance 10 mm from case are kept at ambient temperature. Additionnal measurement of Voltage group 95 % Vzmin 25 �C

Typical Characteristics (Tamb 25 �C unless otherwise specified)
Figure 1. Admissible Power Dissipation vs. Ambient Temperature

Features

Parameters

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