Multilayer Varistors
Multilayer Varistor
for ESD pulse
Series
Series
EZJZS
EZJZR
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Precautions for Handling
see Page 112 to 118
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Packing method
see Page 111, 182
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Features
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Multilayer monolithic ceramic construction
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Excellent solderability and superior heat resistance
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Large surge current and energy capabilities in
withstanding small size.
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Series EZJZS, R
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Multilayer varistor of Zinc oxide ceramic.
suppresses the pulse noise(ESD, burst-noise) and
protects the equipment from the transient surge.
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This Varistor is suitable for high-speed signal line
due to small capacitance.
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Explanation of Part Numbers
1
2
3
4
5
6
7
8
9
10
11
12
E
Z
J
Z
S
V
2
7
0
E
A
Design No.
K
(Example)
Product Code
(Multilayer Varistor)
Series code
ZnO
Size Code
S 2 Array Type
R 4 Array Type
Packaging Style
V Paper Taping
Nomiral
Varistor voltage
The first digitits
are significant
figures and the
third one denotes
the number of
zeros following.
Capacitance Code
27 pF max.
D
33 pF max.
P
39 pF max.
S
43 pF max.
T
47 pF max.
E
Design No.
Nil Cap. Tolerance : max.
K Cap. Tolerance :
±
10 %
M Cap. Tolerance :
±
20 %
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Construction
[2 Array Type]
Schematic
Ceramic dielectric
Terminal Electrode
Inner Electrode
[4 Array Type]
Ceramic dielectric
Schematic
Terminal Electrode
Inner Electrode
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or us
e.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Multilayer Varistors
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Dimmension in mm(not to scale)
[2 Array Type]
[4 Array Type]
BW1
BW1
W
L
BW
BW
L
T
P
P
T
W
(Unit:mm)
BW1
0.2±0.1
0.2
+0.3
-0.1
P
0.64±0.10
0.5±0.1
Type
Part Numbers
L
1.37±0.15
2.00±0.15
W
1.0±0.1
1.25±0.15
T
0.60±0.06
0.85±0.10
BW
0.36±0.10
0.25±0.10
2 Array Type
EZJZS11111A
4 Array Type
EZJZR11111A
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Ratings and Characteristics
Type
Size
Code
(EIA)
Prat Numbers
Maximum
Allowable
Voltage
DC
DC
DC
DC
DC
DC
DC
DC
DC
DC
6.7
16
16
18
18
6.7
16
16
18
18
V
V
V
V
V
V
V
V
V
V
Varistor
Voltage
@ 1mA
12
27
27
80
170
12
27
27
80
170
V
V
V
V
V
V
V
V
V
V
Capacitance
@ 1MH z
220
20
47
3
3
220
20
47
3
3
pF
pF
pF
pF
pF
pF
pF
pF
pF
pF
max.
max.
max.
max.
max.
max.
max.
max.
max.
max.
Maximum
Peak Current
@8/20 µs
5 A
3 A
5 A
ÑÑÑ
ÑÑÑ
5 A
3 A
5 A
ÑÑÑ
ÑÑÑ
Maximum
Peak Current
@8/20 µs
Maximum
ESD
IEC61000-4-2
2 Array Type
4 Array Type
EZJZSV120JA
EZJZSV270RA
0504
EZJZSV270EA
EZJZSV800AA
EZJZSV171AA
EZJZRV120JA
EZJZRV270RA
0805
EZJZRV270EA
EZJZRV800AA
EZJZRV171AA
Size
Code
(EIA)
Prat Numbers
Contact Discharge
Voltage: 8 kV
Air Gap Discharge
Voltage:15 kV
Type
Maximum
Allowable
Voltage
Varistor
Voltage
@ 1mA
Capacitance
@ 1MH z
27
33
39
43
47
pF
pF
pF
pF
pF
Maximum
ESD
IEC61000-4-2
Contact Discharge
Voltage: 8 kV
Air Gap Discharge
Voltage:15 kV
EZJZSV270DA1
EZJZSV270PA1
2 Array Capacitance
0504
EZJZSV270SA1
DC 16 V
Control Type
EZJZSV270TA1
EZJZSV270EA1
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Operating Temperature Range: -40 to 85 ¡C
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1:Capacitance
Tolerance Code (K:±10 %, M:±20 %)
27 V
5 A
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Typical Characteristics
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Voltage vs. Current
1000
100
EZJZ V171AA
0AA
EZJZ V80
0 A
EZJZ V27
Voltage (V)
120JA
EZJZ V
10
1
0.000001 0.00001
0.0001
0.001
0.01
Current (A)
0.1
1
10
100
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or us
e.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Multilayer Varistors
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Recommended Applications
Applications Examples
PC mother board
HDD
CD-ROM
DSC
Cellular teleptone, PHS
PDA
Photoelectric sensor
Proximity sensor
Pressure switch
Flowmeter
SSR
motor
Series
EZJS
Series
EZJZ
Series
Ultra low capacitance
Recommended Applications
(Hz)
DC 1k 1M 1G
(3 pF max.)
Low capacitance
(20 to 330 pF)
High capacitance
DC to some tens of GHz
Power, Relay. signal line
High frequency circuit (USB,IEEE1394,etc)
DC to some tens of GHz
Power, Relay. signal line
High frequency circuit (RC232C,etc)
DC to some hunderds of kHz
Power, Relay. Audio signal
(1800 to 22000 pF)
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Equivalent and Impules suppression
Series EZJZ
(Zn0:Zinc Oxide)
Series EZJS
(ST:Strontium Titanate)
Varistor
Capacitance
C:100pF
(EZJZ1V270GA)
C:0.022 F
(EZJS2VB223)
Inpules wave form
Clamped wave form
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Typical circuits requiring protection
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USB Interface Circuit
Controller
Vcc
D+
D-
GDN
IEEE1394
Controller
Vcc
D
D-
GDN
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IEEE1394 Interface Circuit
Power
IC
z
3
z
1, 2
Controller
Power
Supply
z
1
z
1
z
3
USB
Controller
Power
IC
®
Controller
z
1
z
1
TPA+
TPA-
z
1
z
3
z
3
z
1
z
1
z
1
TPB+
TPB-
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IC Protection
DC Power Line
Signal Line
I/O Port
Audio Signal
3
1,2
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Motor or Electromagnetic surge absorption
3
Motor
Electromagnetic valve (Solenoid)
Z
1
: EZJZ Series(EZJZ@V171AA)
Z
2
: EZJZ Series
Z
3
: EZJZ Series or EZJS Series
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or us
e.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
Multilayer Varistors
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Performance Characteristics
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Electrical
Characteristics
Test Method
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.
The maximum DC voltage that can be applied continuously
in the specified operating temperature.
The voltage between two terminals with the specified
measuring current C
mA
DC applied is called V
c
or V
cmA
.
The measurement shall be made as fast as possible to avoid
heat affection.
Capacitance shall be measured with the specified
measuring frequency, 0.2 to 2.0 Vms., 0V bias and 20 ¡C.
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.
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
Coefficient indicating dependency of V-I characteristics on
temperature. This is shown by the change of V
cmA
per ¡C at
the ambient operating temperature.
This is shown by the maximum capacitance change at
the ambient operating temperature.
EZJZ Series: ±0.1 %/¡C
EZJS Series: ±0.3 %/¡C
EZJZ Series: ±20 %
EZJS Series: ±10 %
Specifications
Standard Test
Condition
ÑÑÑ
Maximum
allowable Voltage
Varistor voltage
Capacitance
To meet
the specified value.
Maximum peak current
Maximum ESD
Temperature coefficient
Varistor Voltage
Temperature coefficient
capacitance
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Mechanical requirements
Characteristics
Test Method
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)
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 V
c
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
Specifications
Solderability
Approximately 75 %
of the terminals shall
be covered with new
solder
uniformly,
Resistance to
soldering heat
No remarkable
mechanical
ÆV
c
/V
c
<
±10 %
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or us
e.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
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