TISP1072F3DR-S 查看數據表（PDF） - Bourns, Inc
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TISP1072F3DR-S Datasheet PDF : 12 Pages
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TISP1xxxF3 Overvoltage Protector Series
APPLICATIONS INFORMATION
Longitudinal Balance
Figure 21 shows a three terminal TISP¤ device with its equivalent “delta” capacitance. Each capacitance, CTG, CRG and CTR, is the true
terminal pair capacitance measured with a three terminal or guarded capacitance bridge. If wire R is biased at a larger potential than
wire T, then CTG >CRG. Capacitance CTG is equivalent to a capacitance of CRG in parallel with the capacitive difference of (CTG -CRG). The
line capacitive unbalance is due to (CTG -CRG) and the capacitance shunting the line is CTR +CRG/2.
All capacitance measurements in this data sheet are three terminal guarded to allow the designer to accurately assess capacitive
unbalance effects. Simple two terminal capacitance meters (unguarded third terminal) give false readings as the shunt capacitance via
the third terminal is included.
T
T
(CTG-CRG)
CTG
G
Equipment
G
CTR
CRG
CTR
Equipment
CRG
R
CTG > CRG
R
Figure 21.
CRG
Equivalent Unbalance
AIXXAB
“TISP” is a trademark of Bourns, Ltd., a Bourns Company, and is Registered in U.S. Patent and Trademark Office.
“Bourns” is a registered trademark of Bourns, Inc. in the U.S. and other countries.
SEPTEMBER 1993 - REVISED SEPTEMBER 2008
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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