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NP0640SBMCT3G 데이터시트(HTML) 6 Page - ON Semiconductor

부품명 NP0640SBMCT3G
상세내용  80A, Ultra Low Capacitance TSPD
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제조사  ONSEMI [ON Semiconductor]
홈페이지  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NP0640SBMCT3G 데이터시트(HTML) 6 Page - ON Semiconductor

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NP−SBMC Series
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6
Normal System
Operating Voltage
Equipment Failure Threshold
Time
Transient Surge
TSPD Protection
(short)
Figure 5. Protection During a Transient Surge
TSPD Transparent
(open)
TSPD Transparent
(open)
TSPD Protection Voltage
Upper Limit
TSPD’s are useful in helping designers meet safety and
regulatory standards in Telecom equipment including
GR−1089−CORE,ITU−K.20, ITU−K.21, ITU−K.45, FCC
Part 68, UL1950, and EN 60950.
ON Semiconductor offers a full range of these products in
the NP series product line.
DEVICE SELECTION
When selecting a TSPD use the following key selection
parameters.
Off−State Voltage VDRM
Choose a TSPD that has an Off−State Voltage greater than
the normal system operating voltage. The protector should
not operate under these conditions:
Example:
Vbat = 48 Vmax
Vring = 150 Vrms = 150*1.414 = 212 V peak
VDRM should be greater than the peak value of these two
components:
VDRM > 212 + 48 = 260 VDRM
Breakover Voltage V(BO)
Verify that the TSPD Breakover Voltage is a value less
than the peak voltage rating of the circuit it is protecting.
Example: Relay breakdown voltage, SLIC maximum
voltage, or coupling capacitor maximum rated voltage.
Peak Pulse Current Ipps
Choose a Peak Pulse current value which will exceed the
anticipated surge currents in testing. In some cases the 100 A
“C” series device may be needed when little or no series
resistance is used. When a series current limiter is used in the
circuit a lower current level of “A” or “B” may be used. To
determine the peak current divide the maximum surge
current by the series resistance.
Hold Current (IH)
The Hold Current must be greater than the maximum
system generated current. If it is not then the TSPD will
remain in a shorted condition, even after a transient event
has passed.
TYPICAL APPLICATION
Figure 6. ADSL
Tip
Ring
Voice
NP3100SBMC
NP3100SBMC
DSL


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