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. ♦ ♦ ♦ ♦ ♦ ♦ ♦ 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 (-55ºC to +125ºC) ♦ Custom Configurations 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 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. Maximum Continuous Voltage Ratings OhmCraft Conventional 3500 Max. Voltage 3000 2500 2000 1500 1000 500 0 0402 0503 0603 0805 1005 1206 1505 2010 2208 2512 3512 Case Size1 Ratings 0402 0503 0603 0805 1005 1206 1505 2010 2208 2512 3512 0.040 0.050 0.060 0.200 0.250 0.330 0.330 1.000 0.750 2.000 3.000 Max. Voltage (V) (In air) 300 350 400 600 750 1000 1200 1700 2000 2500 3500 Max. Voltage (V) (Potted) 4000 6000 6000 10K 13K 16K 19K 30K 35K 40K 50K Resistance Range (ohms) 1K20G 1K200G 1K300G 1K350G 1K450G 1K500G 5K750G 10K1T 5K1.5T 10K2.0T 10K2.0T Max. Power (W) 2 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 Case Size ? Length (L) (mils) Width (W) (mils) Thickness (T) Max. (mils) Pad (D) (mils) 0402 40 + 5 20 + 3 20 10 (+ 5) 0403 40 + 5 30 + 5 20 10 (+ 5) 0502 50 (+10,-5) 25 + 5 20 10 (+ 5) 0503 55 (+10,-5) 30+ 5 20 6 (+ 2) 0504 50 (+10,-5) 40+ 5 20 6 (+ 2) 0603 63 (+10,-5) 31 + 5 20 10 (+10,-5) 0805 79 (+10,-5) 50 + 5 25 10 (+10,-5) 1004 100 (+10,-5) 40 + 5 25 15 (+10,-5) 1005 100 (+10,-5) 50 + 5 25 15 (+10,-5) 1206 126 (+10,-5) 63 + 5 30 15 (+10,-5) 1210 126 (+10,-5) 98 + 5 30 15 (+10,-5) 1505 150 (+10,-5) 50 + 5 30 15 (+10,-5) 2010 200 (+10,-5) 100 + 5 30 20 (+10,-5) 2208 225 (+10,-5) 75 + 5 30 20(+10,-5) 2510 250 (+10,-5) 100 + 5 30 20 (+10,-5) 2512 250 (+10,-5) 125 + 5 30 20 (+10,-5) 3512 350 (+10,-5) 125 + 5 30 20 (+10,-5) Wrap-around Type B & U terminations L = Length W = Width T = Thickness D = Pad dimension Bondable Type G & S terminations How to build a part number…. Type Case size TCR1 Value2 Tolerance3 Termination MCH High Voltage See dimension E = + 25ppm/ºC Chip table above H = + 50ppm/ºC K = + 100ppm/ºC L = + 200ppm/ºC Note 1: TCR measured from –55ºC to +125ºC. 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: [email protected] Web: www.rhopointcomponents.com MCH0211