ZM4728A - ZM4764A
1.0W SURFACE MOUNT ZENER DIODE
Features
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NOT RECOMMENDED FOR NEW DESIGN,
USE SMAZ SERIES (SMA PACKAGE)
A
B
C
1.0W Power Dissipation
3.9V - 100V Nominal Zener Voltages
Standard V
Z
Tolerance is 5%
Mechanical Data
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Case: MELF, Glass
Terminals: Solderable per MIL-STD-202,
Method 208
Polarity: Cathode Band
Approx. Weight: 0.25 grams
MELF
Dim
A
B
C
Min
4.80
2.40
Max
5.20
2.60
0.55 Nominal
All Dimensions in mm
Maximum Ratings
@ T
A
= 25擄C unless otherwise specified
Symbol
I
Z
@ T
A
= 25擄C
@ I
F
= 200 mA
P
d
R
qJA
V
F
T
j
, T
STG
Value
P
d/
V
z
1
170
1.2
-65 to +200
Unit
mA
W
K/W
V
擄C
Characteristic
Zener Current (see Table page 2)
Power Dissipation
Thermal Resistance - Junction to Ambient Air
Forward Voltage
Operating & Storage Temperature Range
Notes:
1. Measured under thermal equilibrium and DC (I
ZT
) 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 (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. 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