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 0.39F to 1.5F
in sizes 1812, 1825 and 2225. Product is also available in Z5U and Y5V
dielectric from 0.47F to 1.5F 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 (0.39F)
SIZE 1812 1825 2225
LLEENNGGTTHH LL .180 (4.57) .180 (4.57) .220 (5.59)
L T
WWIIDDTTHH WW .125 (3.18) .250 (6.35) .250 (6.35)
TT MMAAXX .095 (2.41) .095 (2.41) .095 (2.41)
W MB MMBB .024 (.610) .024 (.610) .030 (.760)
X7R DIELECTRIC
MMAAXX CCAAPP
474 824 105
@@ 225500VV
Y5V/Z5U DIELECTRIC
MMAAXX CCAAPP
564 125 155
@@ 225500VV
HOW TO ORDER
RD1812 Y 474 M 251 N X T M
SIZE DIELECTRIC CAPACITANCE TOLERANCE VOLTAGE-VDCW TERMINATION THICKNESS PACKING MARKING
OPTION OPTION OPTION
Value in Two significant
J = +/-5% N = Nickel Barrier
RD1812 B = X7R
X=Non-standard
T=Reeled M = Marked
Picofarads
figures, followed
RD1825 XX77RR OONNLLYY (100% Tin)
thickness. Specify
(See Marking
Y = Y5V
Two significant
by number of
RD2225
Y = Nickel Barrier i n M i l s if non-
K = +/- 10 %
Instructions)
figures,
zeros:
standard is
(90 Tin/10 Lead)
Z = Z5U
M= +/- 20 %
followed by required.
251 = 250V
Standard items
number of zeros:
Z = +80% -20%
are any thickness
474=470,000 pF
P = +100% -0%
to maximum
shown
www.. NNOOVVAACCAAPP ..com
.. NNOOVVAACCAAPP ..
Catalog 09-08-PC
4400