2.Performance Characteristics(45KB)

“ZNR” Transient/Surge Absorbers (Type D)
Performance Characteristics (Series E)
Characteristics
Test Methods/Description
Specifications
Standard Test Condition
Electrical measurements (initial/after tests) shall be conducted at
temperature of 5 to 35 °C, relative humidity of maximum 85 %
———
Varistor Voltage
The voltage betwen two terminals with the specified measuring
current 1mA DC applied is called V1 or V1mA. The measurement
shall be made as fast as possible to avoid heat affection.
Maximum
Allowable Voltage
The maximum sinusoidal RMS voltage or maximum DC voltage
that can be applied continuously.
The maximum voltage between two terminals with the specified
standard impulse current (8/20 µs) illustrated below applied.
Clamping Voltage
Current(%)
100
90
50
10
0
8 µs
Rated Power
Maximum Energy
20 µs
Time
To meet the
specified value.
The power that can be applied in the specified ambient
temperature.
The maximum energy within the varistor voltage change of ±10 %
when a single impulse current of 2 ms or 10/1000 µs is applied.
Electrical
The maximum current within the varistor voltage change of ±10 %
Maximum
2 times when a standard impulse current of 8/20 µs is applied two times
Peak
with an interval of 5 minutes.
Current
(Withstanding
The maximum current within the varistor voltage change of ±10 %
Surge
1 time
with a single standard impulse current of 8/20 µs is applied.
Current)
Temperature Coef ficient
of Varistor Voltage
Capacitance
V1mA at 85 °C – V1mA at 25 °C
1
×
× 100 (%/°C)
60
V1mA at 25 °C
Capacitance shall be measured at 1 kHz ±10 %, 1 Vrms max.
(1 MHz ±10 % below 100 pF), 0 V bias and 20±2 °C.
0 to -0.05 %/°C max.
To meet the
specified value
AC 1500 Vrms shall be applied between both terminals of the
Withstanding Voltage
specimen connected together and metal foil closely wrapped No breakdown
(Body Insulation)
round its body for 1 minute.
The change of VC shall be measured after the impulse current
listed below is applied 10000 or 100000 times continuously with
the interval of 10 seconds at room temperature.
Impulse Life
Item
Times
Part No.
Current
ERZE05A201 to ERZE05A471
ERZE07A201 to ERZE07A621
ERZE08A201 to ERZE08A751
ERZE10A201 to ERZE10A112
ERZE11A201 to ERZE11A112
ERZE14A201 to ERZE14A112
Impulse Life (I) Impulse Life (II)
4
5
×10 Times
×10 Times
Impulse Current
50 A (8/20 µs)
35 A (8/20 µs)
100 A (8/20 µs)
70 A (8/20 µs)
150 A (8/20 µs)
85 A (8/20 µs)
170 A (8/20 µs)
90 A (8/20 µs)
200 A (8/20 µs) 110 A (8/20 µs)
250 A (8/20 µs) 120 A (8/20 µs)
ΔV1mA/V1mA < 0 to 20 %
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
04
Jan. 2015
“ZNR” Transient/Surge Absorbers (Type D)
Performance Characteristics (Series E)
Characteristics
Test Methods
Robustness of
Terminations
(Bending)
The unit shall be secured with its terminal kept vertical and the force
specified below shall be applied in the axial direction.
The terminal shall gradually be bent by 90 ° in one direction, then 90 ° No remarkable
in the opposite direction, and again back to the original position.
mechanical damage
The damage of the terminal shall be visually examined.
Terminal diameter
Force
4.9 N
00.6 mm
4.9 N
00.8 mm
9.8 N
01.0 mm
Vibration
After repeadly applying a single harmonic vibration (amplitude: 0.75
mm, double amplitude: 1.5 mm) with 1 minute vibration frequency
cycles (10 Hz to 55 Hz to 10 Hz) to each of three perpendicular
directions for 2 hours. Thereafter, the unit shall be visually examined.
Solderability
After dipping the terminals to a depth of approximately 3 mm from the
body in a soldering bath of 235±5°C for 2±0.5 seconds, the terminal
shall be visually examined.
Resistance to
Soldering Heat
After each lead shall be dipped into a solder bath having a temperature
of 260±5 °C to a point 2.0 to 2.5 mm from the body of the unit, using ΔV1mA/V1mA < ±5 %
shielding board (t=1.5 mm), be held there for 10±1 s and then be stored No remarkable
at room temperature and normal humidity for 1 to 2 hours. The change mechanical damage
of VCmA and mechanical damages shall be examined.
High Temperature
Storage/
Dry Heat
The specimen shall be subjected to 125±2 °C for 1000 hours in a
thermostatic bath without load and then stored at room temperature
ΔV1mA/V1mA < ±5 %
and normal humidity for 1 to 2 hours. Thereafter, the change of VCmA
shall be measured.
Humidity
The specimen shall be subjected to 40±2 °C, 90 to 95 % RH for
1000 hours without load and then stored at room temperature and
ΔV1mA/V1mA < ±5 %
normal humidity for 1 to 2 hours. Thereafter, the change of VCmA shall
be measured.
Mechanical
Robustness of
Terminations
(Tensile)
After gradually applying the force specified below and keeping the
unit fixed for 10 seconds, the terminal shall be visually examined for
any damage.
Terminal diameter
Force
9.8 N
00.6 mm
9.8 N
00.8 mm
19.6 N
01.0 mm
The temperature cycle shown below shall be repeated five cycles
and then stored at room temperature and normal humidity for 1 to 2
hours. The change of VCmA and mechanical damage shall be
examined.
Environmental
Specifications
Temperature
Cycle
Step
1
2
3
4
Temperature (°C) Period (minutes)
–40±3
30±3
Room temperature
15±3
125±2
30±3
Room temperature
15±3
Approximately 95 %
of the termainals shall
be covered with new
solder uniformly.
ΔV1mA/V1mA < ±5 %
No remarkable
mechanical damage
High Temperature
Load/
Dry Heat Load
After being continuously applied the Maximum Allowable Voltage
at 85±2 °C for 1000 hours, the specimen shall be stored at room
temperature and normal humidity for 1 to 2 hours. Thereafter, the
change of VCmA shall be measured.
Damp Heat Load/
Humidity Load
The specimen shall be subjected to 40±2 °C, 90 to 95 % RH and the
Maximum Allowable Voltage for 1000 hours and then stored at room
temperature and normal humidity for 1 to 2 hours. Thereafter, the
change of VCmA shall be measured.
Low Temperature
Storage/Cold
The specimen shall be subjected to –40±2 °C without load for 1000
hours and then stored at room temperature and normal humidity for ΔV1mA/V1mA < ±5 %
1 to 2 hours. Thereafter, the change of VCmA shall be measured.
ΔV1mA/V1mA < ±10 %
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
04
Jan. 2015
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