types mch and mchn multilayer high rf power capacitors 2500 & 4000 volt rf capacitors for medical imaging coils, plasma generators, vhf/uhf power ampli?ers and antenna tuning with nonmagnetic option the ?exible aluminum silicate dielectric eliminates cracking and permits soldering to 260 c. these high voltage, rf capacitors need no voltage derating at temperatures up to 125 oc and voltages to 4000 vdc. exceptionally low esr and superior thermal qualities set the mch/mchn chip capacitors apart from ordinary rf capacitors. highlights ? no thermal cracking ? fr4 compatible and wave solderable ? extremely high q above 50 mhz ? nonmagnetic option available ? ultra stable: no change with (t), (v) and (f) ? excellent for tuning and impedance matching ? high ?ashover level ? withstands 2 mm bend test ? better than porcelain applications ? mri coils ? rf ablation systems ? transmitters ? rf generators ? antenna tuning ? lasers ? rf power ampli?ers ? mri generators speci?cations capacitance and voltage ratings: 10 C 220 pf at 4kvdc and 270 C 1000 pf at 2500 vdc (other ratings available) capacitance tolerance: 5% standard (2% available) temperature range: C55 oc to +125 oc (with no voltage derating) case size: 3838 (9.7 x 9.7 mm) temperature characteristics: temp. coef?cient cap drift 0 to +50 ppm/oc (0.05%+0.1 pf) engineering design kits mch2500vkit8, mch4000vkit10 nonmagnetic mchn2500vkit9, mchn4000vkit11 2500 v kits 5 each of 8 values 270 to 1000 pf 4000 v kits 5 each of 10 values 10 C 220 pf ???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? ??????????????????? ???????????????????????? ? ? ????????????????? ?????????????????????????????????????????????????????? resin coating terminal glass mica sn plating conductive resin ag electrode ni electrode: type mc cu electrode: nonmagnetic type mcn high q, low esr multilayer construction for rf power applications hand soldering method snagcu recommended solder do not use strong acid type ?ux with rm or rma soldering iron tip temperature should be 250 oc to 280 oc 5 sec. 60 watt iron or less ? ? ? ? solder solder tip of iron good bad capacitor 300 250 200 150 100 50 25 150 180 200 50 30 0 220 ~260 oc pre-heat soldering cooling peak 230~260 oc 10 sec. max. temp (oc) time (sec) re?ow solder pro?le 70 80 90 20 10 0 time (sec) temp (oc) 300 250 200 150 100 50 25 220 ~255 oc peak 230 ~255 oc 5 sec. max. pre-heat soldering cooling wave solder pro?le rohs compliant cde cornell dubilier ? 1605 e. rodney french blvd. ? new bedford, ma 02744 ? phone: (508)996-8561 ? fax: (508)996-3830 ? www.cde.com 1
types mch and mchn multilayer high rf power capacitors outline drawing (10.3 mm) max l (10.1 mm) max t max w side ( 0.4 to 1.5 mm) marking on top terminal: (ni sn plating) mch (cu sn plating) mchn .405 max ..395 max see chart 0.016 to 0.060 soldering pattern (10.3 mm) min .050 (1.3 mm) .325 (8.3 mm) min min .05 .425 (10.8 mm) min. .405 0 (1.3 mm) min rohs compliant part numbering system mch 38 f k 271 j Cy case t ype code t emperature v oltage capacitance t olerance package mch = standard 38 = .380x.380 coef?cient k = 2500 vdc 100 = 10 pf j = 5% blank = bulk (100 per bag) mchn = nonmagnetic f =0 to +50 ppm/oc m =4000 vdc 271 = 270 pf g = 2% Cy = t ray pack (100 per tray) 102 = 1000 pf d = 0.5 pf ratings (additional ratings available) cap catalog v oltage length w idth t max (pf) part number* (vdc) inches (mm) inches (mm) inches (mm) 10 mch38fm100d-y 12 mch38fm120j-y 15 mch38fm150j-y 0.080 (2.03 mm) 18 mch38fm180j-y 22 mch38fm220j-y 27 mch38fm270j-y 33 mch38fm330j-y 39 mch38fm390j-y 47 mch38fm470j-y 4000 vdc 0.120 (3.05 mm) 56 MCH38FM560J-y 68 mch38fm680j-y 0.380 0.380 82 mch38fm820j-y +0.025 / -0 +0.015 / -0 100 mch38fm101j-y (9.65 mm (9.65 mm 120 mch38fm121j-y +0.64 /- 0) +0.38 / -0) 0.160 (4.06 mm) 150 mch38fm151j-y 180 220 mch38fm181j-y mch38fm221j-y 0.240 (6.10 mm) 270 mch38fk271j-y 330 390 mch38fk331j-y mch38fk391j-y 0.160 (4.06 mm) 470 mch38fk471j-y 2500 vdc 560 mch38fk561j-y 680 mch38fk681j-y 0.240 (6.10 mm) 820 1000 mch38fk821j-y mch38fk102j-y 0.270 (6.86 mm) *for nonmagnetic version change p/n pre? x to mchn cde cornell dubilier ? 1605 e. rodney french blvd. ? new bedford, ma 02744 ? phone: (508)996-8561 ? fax: (508)996-3830 ? www.cde.com 2
types mch and mchn multilayer high rf power capacitors typical performance data current rating (irms) for 470 pf at 60 oc rise 100 tnerruc 10 smr 1 1 10 100 1000 10000 f (mhz) porcelain (3838) 2.5 kv 11.4 a @ 64 mhz mch (3838) porcelain (3838) mch38k471j (3838) 2.5 kv 14.2 a @ 64 mhz esr vs. frequency for 470 pf 1 0.1 ? ( rse 0.01 0.001 1 10 100 1000 10000 f (mhz) ) porcelain (3838) 2.5 kvdc porcelain (3838) mch (3838) mch (3838) 2.5 kvdc (amps) cd cornell dubilier 1605 . rodney french blvd. new bedford ma 02744 phone: (508)6-8561 fax: (508)6-3830 www.cde.com 3
types mch and mchn multilayer high rf power capacitors typical performance data q vs. frequency 470 pf @ 25 oc 1 10 100 1000 10000 100000 1 10 100 1000 10000 f (mhz) q porcelain (3838) 2.5 kv 11.4 a @ 64 mhz mch38k471j (3838) 2.5 kv 14.2 a @ 64 mhz porcelain (3838) 2.5 kv 11.4 a @ 64 mhz mch38k471j (3838) 2.5 kv 14.2 a @ 64 mhz q z () impedance vs. frequency for 470 pf @ 25 oc porcelain (3838) mch (3838) impedance |z| vs. frequency for 470 pf @ 25 oc 0.1 1 10 100 1000 1 10 100 1000 10000 f (mhz) |z| ( ? ) porcelain (3838) mch (3838) cde cornell dubilier ? 1605 e. rodney french blvd. ? new bedford, ma 02744 ? phone: (508)996-8561 ? fax: (508)996-3830 ? www.cde.com 4
types mch and mchn multilayer high rf power capacitors typical performance data envir onmental speci?cations electrical speci? cations humidity (no load): +40 oc 2 oc @ 90% to 95% rh, 500 hrs. measure after 24 hrs, cap dielectric str ength: 2500 vdc: 1.5 x rated v oltage for 5 seconds is 3% of initial, df 150% 4000 vdc: of original, ir 3x10 4 m, 1.2 x rated v oltage no visual damage storage method: store at 0 to +40 oc at dissipation factor (df): for 5 seconds 0.1% @ 1 mhz and 60% rh, use within 6 months of receipt, if insulation resistance: 5 v rms 100k m minimum 6 months is exceeded, @ 500 vdc 10% check solderability cde cornell dubilier ? 1605 e. rodney french blvd. ? new bedford, ma 02744 ? phone: (508)996-8561 ? fax: (508)996-3830 ? www.cde.com 5
types mch and mchn multilayer high rf power capacitors mechanical speci?cations bending test: mount the capacitor as shown and press the ram bar until a 2.0 mm de?ection is achieved. there will be no visual damage and the capacitors will meet the limits of methods jis 5102 8.11 and aec-q200-005 without cracking or visual damage. soldering speci?cations re?ow solder pro?le wave solder pro?le solder- pre-heat cooling 300 peak 230 ~255 oc 260 temp (oc) 220 ~255 oc 200 150 5 sec. max. 100 50 25 0 10 20 70 80 90 time (sec) 300 260 200 150 100 50 25 150 180 220 ~260 oc 0 30 50 200 pre-heat soldering cooling peak 230~260 oc 10 sec. max. time (sec) hand soldering method ? snpb or snagcu recommended solder ? do not use strong acid type ?ux with rm or rms ? soldering iron tip temperature should be 280 oc to 350 oc 5 sec. ? 80 watt iron or less ? iron tip should not touch chip terminals solder tip of iron capacitor solder good bad 10-10-2007 cde cornell dubilier ? 1605 e. rodney french blvd. ? new bedford, ma 02744 ? phone: (508)996-8561 ? fax: (508)996-3830 ? www.cde.com 6
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