FLAMEPROOF POWER METAL FILM RESISTORS ISO-9001 Registered MFP SERIES • Small size for power rating • Flameproof protection ELECTRICAL DATA: MFP05 MFP1 MFP2 0.5 <1 ohm: 0.7>1 ohm:1.0 2 7R5 - 15R0 0.1 - 1M 1R0 - 1M Power rating at 70°C watts Resistance range watts Limiting element voltage 350 volts TCR 100 <1 ohm:300 1 ohm-9.1 ohm: 200 >10 ohm:100 ppm/°C Resistance Tolerance * 100 1, 2, 5 % Standard Values E24 preferred Thermal Impedance °C/watt Ambient Temperature 150 120 °C 82 -55 to 155 * Below 1 ohm 5% TOL preferred. PHYSICAL DATA: Dimensions (mm) and Weight (g) Type L max. D max. f min. d nom. PCB mounting centers Min. bend radius Wt. nom. MFP05 3.5 1.8 22.4 0.5 7.6 0.5 0.1 MFP1 6.2 2.3 21.0 0.6 10.2 0.6 0.3 MFP2 10.0 4.0 19.0 0.8 18.4 1.2 0.55 Construction: The resistance element is a precisely controlled thin film of metal alloy on a high purity ceramic core, protected by a cement coating applied so that terminations remain completely clear. Thsi permits a well-defined body length (clean lead to clean lead dimension "L". Terminations: Material: Solder coated copper wire Strength: The terminations meet the requirements of IEC 68.2.21. Solderability: The terminations meet the requirements of IEC 115.1 Clause 4.17.3.2. Marking: Solvent Resistance: Flammability: Resistors are color coded with 4 or 5 bands depending on value and tolerance. IEC colors are used. The body protection and marking are resistant t oall normal industrial cleaning solvents suitable for printed circuits. The resistor coating will not burn or emit incandescent particles under any condition of applied temperature or power overload. WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com 1 ISO-9001 Registered PERFORMANCE DATA: Maximum Load at rated power: 1000 hours at 70°C ∆R% 5 Shelf Life: 12 months at room temperature ∆R% 2 Derating from derated power at 70°C ∆R% Zero at 155°C Climatic ∆R% 3 Climatic category ∆R% 50/155/56 Temperature rapid change ∆R% 0.5 Resistance to solder heat ∆R% 0.5 Voltage proof ∆R% 500 min APPLICATION NOTES: 1. If the resistors are to dissipate full rated power, it is recommended that the terminations should not be soldered closer than 4mm from the body. 2. Due to operating temperature limitations imposed by some pcb materials, derating may be necessary. An estimate of the temperature rise to be expected can be calculated using the thermal impedance figures given under Electrical Data. 3. MFP resistors can also be supplied pre-formed, contact factory for details. PACKAGING: MFP resistors are normally supplied tape packed ready for loading onto automatic sequencing and insertion machines. The standard taping method and critical dimensions are shown below. Component wires will not protrude beyond the outside edge of the tapes. All taped resistors will be supplied either on reels or in ammopacks, depending on quantities ordered. Pre-formed resistors are supplied loose packed in plastic bags or boxes. This product and packaging is denoted code F. STANDARD QUANTITIES PER PACKAGE: Type Code MFP05 MFP1 MFP2 Reel R 5000 5000 2500 Ammopack A A 5000 5000 2500 HOW TO ORDER: Sample part number: MFP1 6K8 J R Type Value Tolerance (G = 2%, J = 5%) Packaging Details 2 WIREWOUND AND FILM TECHNOLOGIES DIVISION 736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com