DIODES ZM4740A, ZM4741A, ZM4742A, ZM4731A, ZM4732A Datasheet

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DIODES ZM4740A, ZM4741A, ZM4742A, ZM4731A, ZM4732A Datasheet

ZM4728A - ZM4764A

1.0W SURFACE MOUNT ZENER DIODE

Features

NOT RECOMMENDED FOR NEW DESIGN, USE SMAZ SERIES (SMA PACKAGE)

1.0W Power Dissipation

 

3.9V - 100V Nominal Zener Voltages

 

 

 

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Standard VZ Tolerance is 5%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mechanical Data

 

 

 

 

 

 

 

C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Case: MELF, Glass

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminals: Solderable per MIL-STD-202,

 

 

 

 

 

 

 

MELF

 

 

 

 

Method 208

 

 

 

 

 

 

Dim

 

Min

Max

 

 

Polarity: Cathode Band

 

 

 

 

 

A

 

4.80

5.20

 

 

Approx. Weight: 0.25 grams

 

 

 

 

 

B

 

2.40

2.60

 

 

 

 

 

 

 

 

 

 

C

 

0.55 Nominal

 

 

 

 

 

 

 

 

 

 

All Dimensions in mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Maximum Ratings

 

 

 

 

 

 

 

 

 

 

 

 

 

@ 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

 

 

 

1

 

 

W

 

Thermal Resistance - Junction to Ambient Air

 

R JA

 

 

 

170

 

 

K/W

 

Forward Voltage

@ IF = 200 mA

 

VF

 

 

 

1.2

 

 

V

 

Operating & Storage Temperature Range

 

Tj, TSTG

 

 

 

-65 to +200

 

 

°C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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.

DS18009 Rev. 3 - 3

1 of 3

ZM4728A-ZM4764A

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