TIP & RING CAPACITORS
NOVACAP offers a line of low ESR surface mount
capacitors ideally
suited for “Tip & Ring” applications. These units are designed with 250
VDC rating to withstand the 52 VDC bias and 150 VRMS signal during
ring cadence. Chips are offered in X7R dielectric from 0.39µF to 1.5µF
in sizes 1812, 1825 and 2225. Product is also available in Z5U and Y5V
dielectric from 0.47µF to 1.5µF for other ring detection circuits.
MAX CAPACITANCE @ 250 VDC
3 digit code: two significant digits, followed by number of zeros
eg: 394 = 390,000 pF (0.39µF)
SIZE
L
T
1812
.180
.125
.095
.024
(4.57)
(3.18)
(2.41)
(.610)
1825
.180
.250
.095
.024
(4.57)
(6.35)
(2.41)
(.610)
2225
.220
.250
.095
.030
(5.59)
(6.35)
(2.41)
(.760)
W
MB
LENGTH L
WIDTH W
T MAX
MB
X7R DIELECTRIC
MAX CAP
@ 250V
474
824
105
Y5V/Z5U DIELECTRIC
MAX CAP
@ 250V
564
125
155
HOW TO ORDER
RD1812
SIZE
RD1812
RD1825
RD2225
Y
B = X7R
Y = Y5V
Z = Z5U
474
Value in
Picofarads
Two significant
figures,
followed by
number of zeros:
474=470,000 pF
M
TOLERANCE
J = +/- 5 %
X7R ONLY
K = +/- 10 %
M = +/- 20 %
Z = +80% -20%
P = +100% -0%
251
N
X
THICKNESS
OPTION
X=Non-standard
thickness. Specify
in Mils if non-
standard is
required.
Standard items
are any thickness
to maximum
shown
T
PACKING
OPTION
T=Reeled
M
MARKING
OPTION
M = Marked
(See Marking
Instructions)
DIELECTRIC CAPACITANCE
VOLTAGE-VDCW TERMINATION
Two significant
N = Nickel Barrier
figures, followed
(100% Tin)
by number of
Y = Nickel Barrier
zeros:
(90 Tin/10 Lead)
251 = 250V
40
Catalog 09-08-PC
.
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N O V A C A P
.
com
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