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| MCH Series Military Grade High Voltage Chip Resistors OhmCraft's revolutionary fine line, thick film technology, called FineFilm, provides an entirely new level of stability and voltage ratings in chip resistors. Our MCH series of resistors meets the same high standards as our HVC series, but with the added feature of an extended temperature range. The usual hybrid technologies for manufacturing resistors depend upon composite materials that have limitations. Traditional thick-film methods severely limit performance characteristics and thin-film methods are limited in attainable ohmic values. The FineFilm method of manufacturing offers the best characteristics of both methods, plus adds many unique features. FineFilm resistors feature a longer, high-aspect ratio trace of lower resistivity film. The combination of long line, highaspect ratio, and higher conductivity film, give FineFilm Voltage Ratings to 40,000 Volts Ohmic Values to 1,000 Gigohms Ultra High Stability Tight Tolerances ( to 0.1% ) Low TCR and VCR Very Low noise Extended Temperature Range (-55C to +125C) Custom Configurations resistors unmatched design efficiency, versatility, linearity, stability and low noise. The FineFilm method allows control of process parameters to very tight tolerances. The result is chip resistors with outstanding stability and high voltage ratings. Using the same method, a complete line of FineFilm leaded resistors, dividers and networks are manufactured. For information on those products, please refer to the appropriate data sheets. Maximum Continuous Voltage: FineFilm high voltage chip resistors offer voltage ratings that are much higher than conventional screen printed resistors of the same size and resistive value. 3500 3000 Max. Voltage Maximum Continuous Voltage Ratings OhmCraft Conventional 2500 2000 1500 1000 500 0 0402 0503 0603 0805 1005 1206 1505 2010 2208 2512 3512 Ratings 0402 Max. Power (W) Max. Voltage (V) (In air) Max. Voltage (V) (Potted) Resistance Range (ohms) 2 Case Size1 0503 0.050 350 6000 1K200G 0603 0.060 400 6000 1K300G 0805 0.200 600 10K 1K350G 1005 0.250 750 13K 1K450G 1206 0.330 1000 16K 1K500G 1505 0.330 1200 19K 5K750G 2010 1.000 1700 30K 10K1T 2208 0.750 2000 35K 5K1.5T 2512 2.000 2500 40K 10K2.0T 3512 3.000 3500 50K 10K2.0T 0.040 300 4000 1K20G Note 1: Other standard & custom case sizes are available including: 0403, 0502, 0504, 1004, 1210 & 2510 Note 2: The continuous maximum voltage applied cannot exceed the maximum power rating. MCH0211 Dimensions Wrap-around Type B & U terminations Case Size ? 0402 0403 0502 0503 0504 0603 0805 Length (L) (mils) 40 + 5 40 + 5 50 (+10,-5) 55 (+10,-5) 50 (+10,-5) 63 (+10,-5) 79 (+10,-5) 100 (+10,-5) 100 (+10,-5) 126 (+10,-5) 126 (+10,-5) 150 (+10,-5) 200 (+10,-5) 225 (+10,-5) 250 (+10,-5) 250 (+10,-5) 350 (+10,-5) Width (W) (mils) 20 + 3 30 + 5 25 + 5 30+ 5 40+ 5 31 + 5 50 + 5 40 + 5 50 + 5 63 + 5 98 + 5 50 + 5 100 + 5 75 + 5 100 + 5 125 + 5 125 + 5 Thickness (T) Max. (mils) 20 20 20 20 20 20 25 25 25 30 30 30 30 30 30 30 30 Pad (D) (mils) 10 (+ 5) 10 (+ 5) 10 (+ 5) 6 (+ 2) 6 (+ 2) 10 (+10,-5) 10 (+10,-5) 15 (+10,-5) 15 (+10,-5) 15 (+10,-5) 15 (+10,-5) 15 (+10,-5) 20 (+10,-5) 20(+10,-5) 20 (+10,-5) 20 (+10,-5) 20 (+10,-5) L = Length W = Width T = Thickness D = Pad dimension Bondable Type G & S terminations 1004 1005 1206 1210 1505 2010 2208 2510 2512 3512 How to build a part number.... Type Case size TCR1 Value2 Tolerance3 Termination MCH High Voltage See dimension E = + 25ppm/C Chip table above H = + 50ppm/C K = + 100ppm/C L = + 200ppm/C Note 1: TCR measured from -55C to +125C. Note 2: Value is dependent on case size. Note 3: Tolerance is dependent on case size & value. Resistance value expressed as a four digit number where the first three numbers are the significant value, and the forth number is the number of zeros. Example: For a High Voltage, 125 Meg-ohm resistor with case size of 0805, a TCR of + 50 ppm/C, a +1% tolerance, and wrap-around solderable terminations - the part number would be: MCH0805H1256FB B = + 0.1 % C = + 0.25 % D = + 0.5 % F = + 1.0 % G = + 2.0% J = + 5.0 % K = + 10 % N = + 15 % L = + 20 % M = + 30 % P = + 50 % B = Solderable wrap-around (solder coated with nickel barrier) S = Solderable single surface (flip-chip) G = Wire Bond able (gold) U = Bondable wraparound (gold) RHOPOINT COMPONENTS Hurst Green, Oxted, Surrey, RH8 9AX Tel: +44 (0) 1883 717988 Fax: +44 (0) 1883 712938 Email: sales@rhopointcomponents.com Web: www.rhopointcomponents.com MCH0211 |
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