M C C
TM
SMBJ5338B thru SMBJ5369B
Micro Commercial Components
Note 1
Devices listed have a 5% tolerance on nominal V Z.
The suffix A denotes a 20% tolerance, suffix C
denotes 2%, and suffix D denotes 1%.
Note 5
The Maximum Zener Current (I ZM) shown is for 5%
tolerance devices. IZM for 10% and 20% devices
can be calculated using the formula:
IZM
=
P
Note 2
Note 3
Nominal Zener Voltage (V Z) is read with the device in
standard test clips with 3/8 to ½ inch spacing between
clip and case of the diode. Before reading, the diode is
allowed so stabilize for a period of 40 10 milliseconds
at 25°C (+8, -2°C).
V ZM
Where “VZM” is VZ at the high end of the voltage
tolerance specified and “P” is the rated power of the
device.
The Zener impedance (Z ZT or ZZK is derived from the 60
HZ ac voltage, which results when an ac current having
a rms value equal to 10% of the dc zener current (I ZT or
IZK) is superimposed on I ZT or IZK respectively. Dynamic
impedance variations with other current values are
described in Micronote 202.
Note 6
Note 7
The Surge Current (IZM) is specified as the maximum
peak of a nonrecurring sine wave of 8.3 milliseconds
duration.
Voltage Regulation (∆VZ) is the difference between the
voltage measured at 10% and 50% I ZM).
Note 4
The Maximum Reverse (leakage) Current is specified
for devices with 20% and 10% voltage tolerances
on nominal VZ in another column.
w w w.m c c s e m i.c o m
Revision: 7
2007/04/25
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