metal film resistors, industrial, precision cmf industrial vishay dale www.vishay.com for technical questions , contact: ff2bresistors@vishay.com document number: 31018 18 revision: 14-oct-08 features ? small size - conformal coated ? flame retardant epoxy coating ? controlled temperature coefficient ? excellent high frequency characteristics ? exceptionally low noise; typically 0.10 v/v ? low voltage coefficient to 5 ppm/v ? lead (pb)-free version is rohs compliant ? special tolerance and or tc matching available on request vishay dale model cmf is also available as military qualifi ed styles rn and rl. see appropriate catalog or web page for the mil-spec ratings/attributes. (except for marking, the industria l and military versions are ex actly the same. depending upon stock, military marked parts may be supplied as industrial rated parts ). note the above table summarizes the more common combinations of power rating, case size and ambient operating temperature that preva il in various industrial and military re sistor specifications. the ?performance? t able in ensuing pages qualifies the load life stabi lity under these combinations. note (1) tolerances of 0.5 % (d), 0.25 % (c) and 0.1 % (b) ar e available only in 50 ppm and 25 ppm temperature coefficients * pb containing terminations are not rohs compliant, exemptions may apply a v aila b le p b -free rohs* compliant e3 standard electrical specifications global model historical model limiting element voltage max v ? resistance range 0.1 % - 1 % 0.1 % - 0.5 % 1 % - 5 % 1 % 2 %, 5 % 1 % 2 %, 5 % 1 % 2 %, 5 % 25 ppm 50 ppm 50 ppm 100 ppm 100 ppm 150 ppm 150 ppm 200 ppm 200 ppm cmf50 cmf-50 200 10 - 2m5 10 - 2m5 10 - 2m5 10 - 2m5 10 - 2m5 10 - 22m 10 - 22m 10 - 22m 10 - 22m cmf55 cmf-55 250 10 - 2m5 10 - 2m5 10 - 5m 1 - 22m1 1 - 22m1 r5 - 50m r5 - 50m r5 - 50m r1 - 50m cmf60 cmf-60 500 10 - 2m5 10 - 2m5 10 - 10m 1 - 10m 1 - 10m r5 - 10m r5 - 10m r5 - 10m r1 - 10m cmf65 cmf-65 500 10 - 2m5 10 - 2m5 10 - 10m 1 - 15m 1 - 15m r5 - 22m r5 - 22m r5 - 22m r1 - 22m cmf70 cmf-70 500 10 - 2m5 10 - 2m5 10 - 10m 1 - 15m 1 - 15m 1 - 22m 1 - 22m 1 - 22m 1 - 22m cmf07 cmf-07 250 - - - - 5 - 5m - 1 - 5m - 1 - 5m cmf20 cmf-20 500 - - - - 5 - 10m - 1 - 10m - 1 - 10m commercial power rating (see performance table) wattage at + 70 c at + 125 c 0.05 cmf50 cmf50 0.10 cmf50, cmf55 cmf50, cmf55 0.125 cmf50, cmf55, cmf60 cmf50, cmf55, cmf60, cmf20 0.25 cmf50, cmf55, cmf60, cmf65, cmf70, cmf07 cmf55, cmf60, cmf65, cmf70, cmf20 0.50 cmf55, cmf60, cmf65, cmf70, cmf20 cmf60, cmf65, cmf70, cmf20 0.75 cmf60, cmf65, cmf70, cmf20 cmf65, cmf70 1.0 cmf60, cmf65, cmf70, cmf20 - global part number information global model resista n ce v alue tolera n ce packagi n g code (see standard r = decimal b = 0.1 % e = 25 ppm ek = lead (p b )-free, b u lk ea = lead (p b )-free, t/r (f u ll) eb = lead (p b )-free, t/r (1000 pieces) bf = tin/lead, b u lk re = tin/lead, t/r (f u ll) r6 = tin/lead, t/r (1000 pieces) electrical k = tho u sand c = 0.25 % h = 50 ppm specifications m = million d = 0.5 % k = 100 ppm ta b le) r10000 = 0.1 f = 1 % l = 150 ppm 1 - 999 680k00 = 6 8 0 k g = 2 % n = 200 ppm 1m0000 = 1.0 m j = 5 % new global part numbering: cmf55301r00fkre (preferred part numbering format) cmf 55 3 0 1 r 0 0 f kr e historical part number example: cmf-553010ft-1 (will continue to be accepted) 6 3 r 1 - t f 0 1 0 3 5 5 - f m c historical model resista n ce v alue tolera n ce code temp. coefficie n t packagi n g blank = standard special (dash nu m b er) ( u p to 3 digits) from as applica b le temperature coefficie n t (1)
cmf industrial metal film resistors, industrial, precision vishay dale document number: 31018 for technical questi ons, contact: ff2bres istors@vishay.com www.vishay.com revision: 14-oct-08 19 notes (1) 1.08 0.125 [27.43 3.18] if tape and reel (2) available with 0.032" with [0.813 mm] lead (3) 0.290" [7.37 mm] for 0.25 % and 0.1 % resistance tolerances and values > 1 m (4) 0.260" 0.020" [6.60 mm 0.508 mm] for values > 5 m dimensions in inches [millimeters] b d c (max.) 1.500 0.125 (1) [38.10 3.18] a global model ab c (max.) d cmf50 0.150 0.020 [3.81 0.51] 0.065 0.015 [1.65 0.68] 0.187 [4.75] 0.016 0.002 [0.41 0.05] cmf55 0.240 0.020 (4) [6.10 0.51] 0.090 0.008 [2.29 0.20] 0.278 [7.06] (3) 0.025 0.002 [0.64 0.05] cmf60 0.344 0.031 [8.74 0.79] 0.145 0.015 [3.68 0.38] 0.425 [10.80] 0.025 0.002 (2) [0.64 0.05] cmf65 0.562 0.031 [14.27 0.79] 0.180 0.015 [4.57 0.38] 0.687 [17.45] 0.025 0.002 [0.64 0.05] cmf70 0.562 0.031 [14.27 0.79] 0.180 0.015 [4.57 0.38] 0.687 [17.45] 0.032 0.002 [0.81 0.05] cmf07 0.240 0.020 [6.10 0.51] 0.090 0.008 [2.29 0.20] 0.278 [7.06] 0.025 0.002 [0.64 0.05] cmf20 0.375 0.040 [9.53 1.02] 0.145 0.015 [3.68 0.38] 0.425 [10.80] 0.032 0.002 [0.81 0.05] technical specifications parameter unit cmf50 cmf55 cmf07 cmf60 cmf20 cmf65 cmf70 maximum working voltage v ? 200 250 250 500 500 500 500 insulation voltage (1 min) v eff > 500 voltage coefficient (max.) ppm/v 5 (measured between 10 % and full rated voltage) dielectric strength v ac 450 450 450 750 750 900 900 insulation resistance ? 10 11 operating temperature range c - 55 to + 175 terminal strength (pull test) lb 2 2 5 2 5 2 5 noise db 0.10 v/v over a decade of frequency, with low and intermediate resistance values typically below 0.5 v/v weight (max.) g 0.12 0.20 0.20 0.50 0.60 1.00 1.10 temperature coefficient codes global tc code historical tc code temperature coefficient e t- 9 25 ppm/c h t- 2 50 ppm/c k t- 1 100 ppm/c l t- 0 150 ppm/c n t-00 200 ppm/c
cmf industrial vishay dale metal film resistors, industrial, precision www.vishay.com for technical questions , contact: ff2bresistors@vishay.com document number: 31018 20 revision: 14-oct-08 note ? cmf07 and cmf20 parts are marked with color bands, either per mil-prf-22684 (with a wide white band) or using commercial color bands. cmf resistors have an operating temperature range of - 55 c to + 175 c. they must be derated at high ambient temperatures according to the derating curve. the increase in resistor surface temperature due to the rated load is shown below. resistor surface temperature = heat rise plus ambient temperature. ambient temperature in c derating 120 100 80 60 40 20 0 % n i r e w o p d e t a r - 55 - 50 - 25 0 25 70 75 100 125 150 165 175 50 200 1/4 w 1/2 w 3/4 w 1 w 1/ 8 w 1/4 w 1/2 w 3/4 w 1/ 8 w 1/10 w 1/4 w 1/2 w cmf55 cmf60 cmf65 cmf07 cmf20 cmf70 ( e s i r t a e h ) c heat rise 0 20 40 60 8 0 100 1 w material specifications element: vacuum-deposited nickel-chrome alloy coatin g : flame retardant epoxy, formulated for superior moisture protection core: fire-cleaned high purity ceramic solderability: continuous satisfactory coverage when tested in accordance with mil-r-10509 special modifications 1. terminals may be supplied in any commercial material with several type finishes. 2. special pre-conditioning (power aging, temperature cycling, etc.) to customer specifications. 3. non-helixed resistors can be s upplied for critical high frequency applications. 4. fusible, flameproof versions available. marking - value - decade and tolerance - date code (alternately, parts may be mil marked)
cmf industrial metal film resistors, industrial, precision vishay dale document number: 31018 for technical questi ons, contact: ff2bres istors@vishay.com www.vishay.com revision: 14-oct-08 21 performance model power rating at + 70 c at + 125 c cmf50 1/10 w 1/8 w 1/4 w 1/20 w 1/10 w 1/8 w cmf55 1/8 w 1/4 w 1/2 w 1/10 w 1/8 w 1/4 w cmf60 1/4 w 1/2 w 3/4 w and 1 w 1/8 w 1/4 w 1/2 w cmf65 1/2 w 3/4 w 1 w 1/4 w 1/2 w 3/4 w cmf70 1/2 w 3/4 w 1 w 1/4 w 1/2 w 3/4 w cmf07 - 1/4 w - - - - cmf20 - 1/2 w 1 w - - - test (test methods - mil-std-202) maximum r (typical test lots) short time overload - 0.05 % - - 0.05 % - low temperature operation - 0.05 % - - 0.05 % - moisture resistance - 0.05 % - - 0.05 % - shock - 0.01 % - - 0.01 % - vibration - 0.004 % - - 0.04 % - temperature cycling - 0.15 % - - 0.15 % - load life 0.15 % 0.5 % 1.0 % 0.15 % 0.5 % 1.0 % dielectric withstanding voltage - 0.01 % - - 0.01 % - effect of solder - 0.03 % - - 0.03 % -
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay all product specifications and data are subject to change without notice. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, ?vishay?), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners.
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