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

·

Characteristic

Symbol

Value

Unit

Zener Current (see Table page 2)

mA

Power Dissipation

1W

Thermal Resistance - Junction to Ambient Air

170

K/W

Forward Voltage

1.2

V

Operating & Storage Temperature Range

-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:

2. The Zener impedance is derived from the 60Hz AC voltage which results when an AC current having an RMS value equal to

sharp knee on the breakdown curve and to eliminate unstable units.

NOT RECOMMENDED FOR NEW DESIGN,

USE SMAZ SERIES (SMA PACKAGE)