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 2 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).
Note 3 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 4 The Maximum Reverse (leakage) Current is specified
for devices with ± 20% and ± 10% voltage tolerances
on nominal VZ in another column.
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
V ZM
Where “VZM” is VZ at the high end of the voltage
tolerance specified and “P” is the rated power of the
device.
Note 6 The Surge Current (IZM) is specified as the maximum
peak of a nonrecurring sine wave of 8.3 milliseconds
duration.
Note 7 Voltage Regulation (∆VZ) is the difference between the
voltage measured at 10% and 50% I ZM).
SMB(G or J)5333B thru SMB(G or J)5388B
1
5344B
5350B
5335B
5338B
5342B
5357B
5365B
5378B
5388B
S
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