®
TAK CHEONG
Licensed by
ON Semiconductor
,
A trademark of
semiconductor
Components
Industries,
LLC
for
Zener Technology
and
Products
.
3. ZENER VOLTAGE (V
Z
) MEASUREMENT
The zener voltage (V
Z
) is tested under pulse condition. The measured
V
Z
is guaranteed to be within specification with device junction in
thermal equilibrium.
4. ZENER IMPEDANCE (Z
Z
) DERIVATION
The zener impedance is derived from the 60 cycle AC voltage, which results when an AC current having an RMS value equal to 10% of the
DC zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK.
November, 2006 / C
Page 3