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SR270K10D Datasheet(PDF) 15 Page - WALSIN TECHNOLOGY CORPORATION

Part No. SR270K10D
Description  High performance transient voltage suppression
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Maker  WALSIN [WALSIN TECHNOLOGY CORPORATION]
Homepage  http://www.passivecomponent.com/
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SR270K10D Datasheet(HTML) 15 Page - WALSIN TECHNOLOGY CORPORATION

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Performance Characteristics
Characteristics
Test Method and Specifications
Standard Test Condition
Temperature range : 5 to 35
C
Relative humidity : 45 to 85% R.H.
Varistor Voltage
Voltage across the varistor measured at
1 mA DC rectangular pulse current
Maximum Allowable Voltage
Maximum continuous sinusoidal rms voltage or DC voltage which may be
applied within the specified environmental temperature range
Maximum Clamping Voltage
Peak voltage across the varistor under condition of a specified standard
impulse current (8/20µs)
Withstanding Surge Current
Maximum current across the varistor measured at a given standard
waveform (8/20µs) applied one time or two times with the varistor
voltage less than ±10%
Rated Transient Average
Power Dissipation
Maximum average power which may be dissipated due to a group of
pulses occurring within a specified isolated time period, without
causing device failure
Maximum Energy
The maximum energy within the varistor
voltage change of ±10% when one impulse
of 2ms or 10/1000µs is applied
Capacitance
(Reference)
Capacitance between the terminals of the varistor measured at 1 kHz,
1 Vrms, zero bias and room temperature (Exception 100pF below
measured at 1MHz)
Temperature
Coefficient of Varistor
Voltage
(V at 85°C -V at 25°C) /( V at 25°C×60)
×100(%/°C) should be less than -0.05%/°C
Withstanding Voltage
(Body insulation)
The specified voltage shall be applied both terminals of the varistor
connected together and metal foil closely wrapped round its body for 1
min without breakdown
Performance Characteristics
Crest value
Time
Impulse width


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