Precision Metal Film Resistors Features: * * * * * * * EIA standard colour coding Low noise and voltage coefficient Low temperature coefficient range Wide precision range in small package Too low or too high ohmic value can be supplied on case to case basis Nichrome resistor element provides stable performance in various environment Multiple epoxy coating on vacuum deposited metal film provides superior moisture protection Performance Specifications Temperature Coefficient Short Time Overload Insulation Resistance Dielectric Withstanding Voltage Pulse Overload Terminal Strength Resistance to Soldering Heat Solderability Resistance to Solvent Temperature Cycling Humidity (Steady state) Load Life in Humidity Load Life : : : : : : : : : : : : : Within the maximum temperature coefficient specified (0.5% + 0.05 ) Maximum, with no evidence of mechanical damage Minimum 10,000 Mega Ohms No evidence of flashover, mechanical damage, arcing or insulation breakdown (1.0% + 0.05 ) Maximum, with no evidence of mechanical damage No evidence of mechanical damage (1.0% + 0.05 ) Maximum, with no evidence of mechanical damage Minimum 95% coverage No deterioration of protective coating and markings (1% + 0.05 ) Maximum, with no evidence of mechanical damage (2% + 0.05 ) Maximum, with no evidence of mechanical damage Normal type (1.5% + 0.05 ) Maximum Normal type (1.5% + 0.05 ) Maximum Part Number Explanation: MCMF 0 W4 B B 1002 Type Feature Wattage Tolerance PPM Requirement Resistance 0 = Standard F = Non-Flame W8 = 1/8W W4 = 1/4W 1W = 1W 2W = 2W 3W = 3W Small Size S2 = 1/2W-S Extra Small Size 04 = 0.4W-SS B = 0.1% C = 0.25% D = 0.5% F = 1% G = 2% J = 5% B = 15 ppm C = 25 ppm F = 50 ppm G = 100 ppm J = 200 ppm 1st to 3rd digits are significant figures of the resistance and the 4th digit indicates the number of zeros. Metal Film A 5 0 Internal Reference R = Decimal Point 1331 = 1.33 kohms 49R9 = 49.9 ohms www.element14.com www.farnell.com www.newark.com Page <1> 16/02/12 V1.1 Precision Metal Film Resistors Dimensions : Millimetres Part Number Style Power Rating at 70C Dimension (mm) D Maximum L Maximum d 0.05 H 3 PT Standard Packing Quantity Normal Size MCMF0W8 MF 12 1/8 W (0.125 W) 1.85 6.8 0.45 28 52 5,000 MCMF0W4 MF 25 1/4 W (0.25 W) 2.5 3.5 0.54 28 52 5,000 MCMF0W2 MF 50 1/2 W (0.5 W) 3.6 10 0.54 28 52 1,000 MCMF01W MF 100 1W 5 12 0.7 25 52 1,000 MCMF02W MF 200 2W 5.5 16 0.7 28 64 1,000 MCMF034 MF 300 3W 6.5 17.5 0.75 28 64 500 Small Size MCMF0S4 MF 25-S 1/4 W (0.25 W) 1.85 3.5 0.45 28 52 5,000 MCMFF04 MF 40-SS 0.4 W 1.9 3.7 0.45 28 52 5,000 MCMF0S2 MF50-S 1/2 W (0.5W) 3 9 0.54 28 52 2,000 MCMF0M7 MF 75-S 0.75 W 3.5 10 0.54 28 52 5,000 MCMF01S MF 100-S 1W 3.5 10 0.54 28 52 1,000 MCMF02S MF 200-S 2W 5 12 0.7 28 52 1,000 MCMF03S MF 300-S 3W 5.5 16 0.7 28 64 1,000 Notes: * Extra small size types (-SS) are Non flame coating (Dark Green Colour) www.element14.com www.farnell.com www.newark.com Page <2> 16/02/12 V1.1 Precision Metal Film Resistors General Specifications Part Style Number MC MF12 MF12 MC MF0S4 MF 25-S Maximum Working Voltage 200 V Maximum Dielectric Tolerance Overload Withstanding Voltage Voltage 400 V Resistance Range Special Order TCR Tolerance Resistance Range 1% 10 to 1 M 50 PPM/C 2% 10 to 1 M 100 PPM/C 400 V MC MF MFF04 40-SS 200 V 400 V 200 V 5% 1 to 1 M 200 PPM/C MC MF25 MF0W4 250 V 500 V 500 V 1% 10 to 1 M 50 PPM/C MC MF50 MF0W2 350 V MC MF0S2 MF 50-S MC MF01W MF 100 MC MF02W MF 200 MC MF03W MF 300 700 V - 1,000 V 1,000 V 0.5% 51.1 to 511 K 0.1% 100 to 100 K 0.1% 5% - - 51.1 to 1 M 51.1 to 1 50 PPM/C 100 PPM/C M 10 to 1 M 200 PPM/C Derating Curve 15 PPM/C 25 PPM/C 50 PPM/C 15 PPM/C 15 100 to PPM/C 300 K 25 51.1 to PPM/C 511 K 50 10 to 1 M PPM/C - - - - - - - - - Load Life R/R (%) Percent Rated Load (%) 51.1 to 200 K - 700 V - 500 V 0.25% TCR ) Nominal Resistance ( Ambient Temperature (C) www.element14.com www.farnell.com www.newark.com Page <3> 16/02/12 V1.1 Precision Metal Film Resistors V/V) Current Noise ( Current Noise Level Part Number Table Description Part Number Precision Metal Film Resistor MCMF0W4BB1002A50 Important Notice : This data sheet and its contents (the "Information") belong to the members of the Premier Farnell group of companies (the "Group") or are licensed to it. No licence is granted for the use of it other than for information purposes in connection with the products to which it relates. No licence of any intellectual property rights is granted. The Information is subject to change without notice and replaces all data sheets previously supplied. The Information supplied is believed to be accurate but the Group assumes no responsibility for its accuracy or completeness, any error in or omission from it or for any use made of it. Users of this data sheet should check for themselves the Information and the suitability of the products for their purpose and not make any assumptions based on information included or omitted. Liability for loss or damage resulting from any reliance on the Information or use of it (including liability resulting from negligence or where the Group was aware of the possibility of such loss or damage arising) is excluded. This will not operate to limit or restrict the Group's liability for death or personal injury resulting from its negligence. Multicomp is the registered trademark of the Group. (c) Premier Farnell plc 2012. www.element14.com www.farnell.com www.newark.com Page <4> 16/02/12 V1.1