EZJZSV270EAK Datasheet, PDF (5/7 Pages) Panasonic Semiconductor – Multilayer Varistors

Multilayer Varistors
n Performance Characteristics
l Electrical
Characteristics
Test Method
Specifications
Standard Test
Condition
Unless otherwise specified all test and measurements shall
be made at a temperature of 15 to 35 ¡C and at a relative
humidity of 45 to 75 %RH. If results obtained are doubted a
further test should be carried out at a temperature of 20±
2 ¡C and a relative humidity of 60 to 70 %RH.
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Maximum
allowable Voltage
The maximum DC voltage that can be applied continuously
in the specified operating temperature.
Varistor voltage
The voltage between two terminals with the specified
measuring current CmA DC applied is called Vc or VcmA.
The measurement shall be made as fast as possible to avoid
heat affection.
Capacitance
Capacitance shall be measured with the specified To meet
measuring frequency, 0.2 to 2.0 Vms., 0V bias and 20 ¡C.
the specified value.
Maximum peak current
The Maximum current within the varistor voltage change of
±10 % when a standard impulse current of 8/20 ms is
applied two times with an interval of 5 minutes.
Maximum ESD
The maximum ESD within the varistor voltage change of ±30%
when impressing 10 times of ESD (five times of positive-
negatives for each polarity) which is based on IEC61000-4-2
Temperature coefficient Coefficient indicating dependency of V-I characteristics on
Varistor Voltage
temperature. This is shown by the change of VcmA per ¡C at ^{EZJZ Series: ±0.1 %/¡C}
the ambient operating temperature.
EZJS Series: ±0.3 %/¡C
Temperature coefficient
capacitance
This is shown by the maximum capacitance change at
the ambient operating temperature.
EZJZ Series: ±20 %
EZJS Series: ±10 %
l Mechanical requirements
Characteristics
Test Method
Specifications
Solderability
After securing the specimen by the body with tweezers and
dipping in to the specified soldering flux, the specimen shall
be completely immersed into a soldering bath having a
temperature of 235±5 ¡C for 4±1 seconds. And then the
specimen shall be visually examined.
Use the specified soldering flux and solder following:
Soldering Flux: Ethanol solution of rosin about 25 % by weight
Solder: Eutectic solder (Sn 63 : Pb 37)
Approximately 75 %
of the terminals shall
be covered with new
solder
uniformly,
Resistance to
soldering heat
After preheating the specimen according to the following
conditions in Table-1, the specimen shall be completely
immersed into a soldering bath having a temperature of 270±5
¡C for 3±0.5 seconds. And then be stored at room
temperature for 24±2 hours. Thereafter, the change of Vc
and the mechanical damage shall be examined.
Step
1
2
Temperature
080 to 100 ûC
150 to 200 ûC
Period
300 to 360 s
300 to 360 s
No remarkable
mechanical
ÆVc/Vc < ±10 %
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or ues.
Should a safety concern arise regarding this product, please be sure to contact us immediately.