TISP3072F3SL 查看數據表（PDF） - Bourns, Inc
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TISP3072F3SL Datasheet PDF : 12 Pages
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TISP30xxF3 (LV) Overvoltage Protector Series
APPLICATIONS INFORMATION
Longitudinal Balance
Figure 18 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 18.
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.
MARCH 1994 - REVISED MARCH 2006
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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