Datasheet

Design and specifi cations are each subject to change without notice. Ask factory for the current technical specifi cations before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
“ZNR” Transient/Surge Absorbers (Type D)
■ Performance Characteristics (Series E)
Characteristics Test Methods/Description Specifi cations
Standard Test Condition
Electrical measurements (initial/after tests) shall be conducted at
tem per a ture of 5 to 35 °C, relative humidity of maximum 85 %
———
Electrical
Varistor Voltage
The voltage betwen two terminals with the specifi ed measuring
cur rent C
mA
DC applied is called VC or V
CmA
. The mea sure ment
shall be made as fast as pos si ble to avoid heat affection.
To meet the
specifi ed value.
Maximum
Allowable Volt age
The maximum sinusoidal RMS voltage or maximum DC voltage
that can be applied continuously.
Clamping Voltage
The maximum voltage between two terminals with the specifi ed
stan dard impulse current (8/20 µs) illustrated below applied.
Time
100
90
50
10
0
Current(%)
8 µs
20 µs
Rated Power
The power that can be applied in the specifi ed ambient
temperature.
Maximum Energy
The maximum energy within the varistor voltage change of ±10 %
when a single impulse current of 2 ms or 10/1000 µs is ap plied.
Maximum
Peak
Current
(
Withstand-
ing
Surge
Current)
2 times
The maximum current within the varistor voltage change of ±10 %
when a standard im pulse current of 8/20 µs is applied two times
with an interval of 5 minutes.
1 time
The maximum current within the varistor voltage change of ±10 %
with a single standard im pulse current of 8/20 µs is ap plied.
Temperature Co ef fi cient
of Varistor Voltage
V
CmA
at 85 °C – V
CmA
at 25 °C
×
1
× 100 (%/°C)
V
CmA
at 25 °C 60
0 to -0.05 %/°C max.
Capacitance
Capacitance shall be measured at 1 kHz ±10 %, 1 Vrms max.
(1 MHz ±10 % below 100 pF), 0 V bias and 20±2 °C.
To meet the
specifi ed value
Withstanding Voltage
(Body Insulation)
AC 1500 Vrms shall be applied between both terminals of the
spec i men connected together and met al foil closely wrapped
round its body for 1 minute.
No breakdown
Impulse Life
The change of VC shall be measured after the impulse current
list ed be low is applied 10000 or 100000 times con tin u ous ly with
the interval of 10 seconds at room temperature.
Item Impulse Life (I) Impulse Life (II)
Times ×10
4
Times ×10
5
Times
Part No. Current Impulse Current
ERZE05A201 to ERZE05A471 50 A (8/20 µs) 35 A (8/20 µs)
ERZE07A201 to ERZE07A621 100 A (8/20 µs) 70 A (8/20 µs)
ERZE08A201 to ERZE08A751 150 A (8/20 µs) 85 A (8/20 µs)
ERZE10A201 to ERZE10A112 170 A (8/20 µs) 90 A (8/20 µs)
ERZE11A201 to ERZE11A112 200 A (8/20 µs) 110 A (8/20 µs)
ERZE14A201 to ERZE14A112 250 A (8/20 µs) 120 A (8/20 µs)
ΔV
CmA
/V
CmA
<
0 to 20 %
Jul. 201303
21