P0080SCMC Littelfuse / Teccor Sidactor(R) Product, P0080SCMC Datasheet - Page 172
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P0080SCMC
Manufacturer Part Number
P0080SCMC
Description
SIDACTOR MC BI 6V 400A DO-214AA
Manufacturer
Littelfuse / Teccor Sidactor(R) Product
Series
SIDACtor® SC(MC)r
Datasheet
1.P0080SCMC.pdf
(212 pages)
Specifications of P0080SCMC
Voltage - Breakover
25V
Voltage - Off State
6V
Voltage - On State
5V
Current - Peak Pulse (8 X 20µs)
400A
Current - Peak Pulse (10 X 1000µs)
100A
Current - Hold (ih)
50mA
Number Of Elements
1
Capacitance
75pF
Package / Case
DO-214AA, SMB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
P0080SCMC
Manufacturer:
Littelfuse
Quantity:
45 000
Company:
Part Number:
P0080SCMCL
Manufacturer:
Littelfu
Quantity:
150 000
Company:
Part Number:
P0080SCMCLRP
Manufacturer:
Littelfu
Quantity:
73 500
Part Number:
P0080SCMCLRP
Manufacturer:
LITTELFUSE/力特
Quantity:
20 000
Company:
Part Number:
P0080SCMCRP
Manufacturer:
Littelfu
Quantity:
30 000
Overvoltage Protection Comparison
Overvoltage Protection Comparison
http://www.teccor.com
+1 972-580-7777
The four most commonly used technologies for overvoltage protection are:
• SIDACtor devices
• Gas Discharge Tubes (GDTs)
• Metal Oxide Varistors (MOVs)
• TVS diodes
All four technologies are connected in parallel with the circuit being protected, and all exhibit
a high off-state impedance when biased with a voltage less than their respective blocking
voltages.
SIDACtor devices
A SIDACtor device is a PNPN device that can be thought of as a TVS diode with a gate.
Upon exceeding its peak off-state voltage (V
voltage to within the device’s switching voltage (V
through the SIDACtor device exceeds its switching current, the device will crowbar and
simulate a short-circuit condition. When the current flowing through the SIDACtor device is
less than the device’s holding current (I
high off-state impedance.
Advantages
Advantages of the SIDACtor device include its fast response time (Figure 5.3), stable
electrical characteristics, long term reliability, and low capacitance. Also, because the
SIDACtor device is a crowbar device, it cannot be damaged by voltage and it has extremely
high surge current ratings.
Restrictions
Because the SIDACtor device is a crowbar device, it cannot be used directly across the
AC line; it must be placed behind a load. Failing to do so will result in exceeding the
SIDACtor device’s surge current rating, which may cause the device to enter a permanent
short-circuit condition.
Applications
Although found in other applications, SIDACtor devices are primarily used as the principle
overvoltage protector in telecommunications and data communications circuits. For
applications outside this realm, follow the design criteria in "SIDACtor Device Selection
Criteria" on page 5-5.
Gas Discharge Tubes
Gas tubes are either glass or ceramic packages filled with an inert gas and capped on each
end with an electrode. When a transient voltage exceeds the DC breakdown rating of the
device, the voltage differential causes the electrodes of the gas tube to fire, resulting in an
arc, which in turn ionizes the gas within the tube and provides a low impedance path for the
5 - 10
H
), the SIDACtor device will reset and return to its
DRM
), a SIDACtor device will clamp a transient
S
) rating. Then, once the current flowing
SIDACtor
®
Data Book and Design Guide
© 2002 Teccor Electronics