RD1812B474K251NXT Knowles

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