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| Flameproof Power Metal Film Resistor MFP Series * Flameproof protection * Small size for power rating Electrical Data IRC Type Power Rating @ 70C (watts) 0.5 Resistance Range (watts) 7R5 - 15R0 Limiting Element Voltage (volts) TCR (ppm/C) Resistance Tolerance* (%) Standard Values Thermal Impedance (C/watt) 150 Ambient Temperature (C) MFP05 100 MFP1 <1 ohm: 0.7 >1 ohm: 1.0 0.1 - 1M 350 <1 ohm: 300 1 ohm-9.1 ohm: 200>10 ohm: 100 1, 2, 5 E24 preferred 120 -55 to 155 MFP2 2 1R0 - 1M 100 82 * Below 1 ohm 5% TOL preferred. Environmental Data Characteristic Load: 1000 hours at 70C Shelf Life: 12 months at room temperature Derating from rated power at 70C Climatic Climatic Category Temperature rapid change Resistance to solder heat Voltage proof R R R R R R R volts Maximum 5 2 zero at 155C 3 50/155/56 0.5 0.5 500 min General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC's own data and is considered accurate at time of going to print. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com A subsidiary of TT electronics plc MFP Series Issue October 2008 Sheet 1 of 3 Flameproof Power Metal Film Resistor Physical Data d D L f Dimensions (mm) and Weight (g) IRC Type MFP05 MFP1 MFP2 L max 3.5 6.2 10.0 D max 1.8 2.3 4.0 f min 22.4 21.0 19.0 d nom 0.5 0.6 0.8 PCB mounting centers 7.6 10.2 18.4 Min. Bend Radius 0.5 0.6 1.2 Wt. nom 0.1 0.3 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. This permits a well defined body length, (clean lead to clean lead dimension L). Terminations Material Strength Solderability Solder-coated copper wire. The terminations meet the requirements of IEC 68.2.21 The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2 Marking MF Series resistors are color coded with 4 or 5 bands depending on value and tolerance. IEC colors are used. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. Flammability The resistors coating will not burn or emit incandescent particles under any condition of applied temperature or power overload. Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com MFP Series Issue October 2008 Sheet 2 of 3 Flameproof Power Metal Film Resistor Application Notes 1. If the resistors are to dissipate full rate 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. Type Reel Ammopack A Code R A MFP05 5000 5000 MFP1 5000 5000 MFP2 2500 2500 Ordering Data Sample Part No. IRC Type MFP1 6802 J R (MFP1, MFP2) Value (100 ohms and greater - First 3 significant figures plus 4th digit multiplier) Example: 100 ohms = 1000, 1000 ohms = 1001, 150,000 ohms = 1503 (Less than 100 ohms - `R' is used to designate decimal) Example: 51 ohms = 51R0, 1 ohm = 1R00, 0.25 ohm = R250 Tolerance F = 1%, G = 2%, J = 5% Packaging Details R = Reel, A = Ammo Wire and Film Technologies Division * 4222 South Staples Street * Corpus Christi Texas 78411 USA Telephone: 361 992 7900 * Facsimile: 361 992 3377 * Website: www.irctt.com MFP Series Issue October 2008 Sheet 3 of 3 |
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