Metal Glaze™ General Purpose Surface Mount Power Resistor Metal Glaze™ thick film element fired at 1000°C to solid ceramic substrate MM Series • Up to 2 watts • Up to 1000 volts High temperature dielectric coating • 0.1 ohm to 2.2 megohm range • 150°C maximum operating temperature 60/40 Solder over nickel barrier Electrical Data Size Code Industry Footprint B 1206 F 2512 H 3610 IRC Type Maximum Working Power Voltage² Rating MMA0204 MMB0207 MMC0310 ¹Not to exceed √P x R 1/2 400 1 700 2 1000 Resistance Range (ohms) Tolerance (+%)³ TCR (ppm/°C)³ Product Category 0.1 to 0.99 1, 2, 5 100 Low Range 1.0 to 1.0M 1, 2, 5 50, 100 Standard 20 to 348K 0.25, 0.5 50, 100 Tight Tolerance 0.1 to 0.99 1, 2, 5 100 Low Range 1.0 to 2.21M 1, 2, 5 50, 100 Standard 20 to 348K 0.25, 0.5 50, 100 Tight Tolerance 0.1 to 0.99 1, 2, 5 100 Low Range 1.0 to 2.21M 1, 2, 5 50, 100 Standard ²Consult factory for tighter TCR, tolerance, or resistance values. Environmental Data Characteristics Maximum Change Test Method Temperature Coefficient As specified MIL-R-55342E Par 4.7.9 (-55°C +125°C) Thermal Shock ±0.5% +0.01Ω MIL-R-55342E Par 4.7.3 (-65°C +150°C, 5 cycles) Low Temperature Operation ±0.25% +0.01Ω MIL-R-55342E Par 4.7.4 (-65°C @ working voltage) Short Time Overload ±0.5% +0.01Ω ±1% for R>100KΩ MIL-R-55342E Par 4.7.5 2.5 x √P x R for 5 seconds High Temperature Exposure ±0.5% +0.01Ω MIL-R-55342E Par 4.7.6 (+150°C for 100 hours) Resistance to Bonding Exposure ±0.25% +0.01Ω MIL-R-55342E Par 4.7.7 (Reflow soldered to board at 260°C for 10 seconds) Solderability 95% minimum coverage MIL-STD-202, Method 208 (245°C for 5 seconds) Moisture Resistance ±0.5% +0.01Ω MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours) Life Test ±0.5% +0.01Ω MIL-R-55342E Par 4.7.10 (2000 hours @ 70°C intermittent) Terminal Adhesion Strength ±1% +0.01Ω no mechanical damage 1200 gram push from underside of mounted chip for 60 seconds Resistance to Board Bending ±0.5% +0.01Ω no mechanical damage Chip mounted in center of 90mm long board, deflected 5mm so as to exert pull on chip contacts for 10 seconds 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 MM Series Issue March 2009 Sheet 1 of 3 Metal Glaze™ General Purpose Surface Mount Power Resistor Physical Data L C W Dimensions (Inches and (mm) Industry Footprint Size Code Actual Size L W C* 0.057 ± 0.006 (1.45 ± 0.15) 0.020 ± 0.010 (0.51 ± 0.25) B 1206 0.128 ± 0.007 (3.25 ± 0.18) F 2512 0.251 ± 0.010 (6.38 ± 0.25) 0.079 ± 0.006 (2.01 ± 0.15) 0.040 ± 0.010 (1.02 ± 0.25) H 3610 0.367 ± 0.010 (9.32 ± 0.25) 0.105 ± 0.006 (2.67 ± 0.15) 0.050 ± 0.010 (1.27 ± 0.25) *C dimension is average termination width. Recommended Solder Pad Dimensions (Reflow): F A C A B E D Size Code Industry Footprint B Dimensions (Inches and mm)) A B C D E F 1206 0.076 (1.93) 0.093 (2.36) 0.058 (1.47) 0.098 (2.49) 0.032 (0.81) 0.211 (5.36) F 2512 0.121 (3.07) 0.126 (3.20) 0.127 (3.23) 0.183 (4.65) 0.040 (1.02) 0.369 (9.37) H 3610 0.170 (4.32) 0.160 (4.06) 0.213 (5.41) 0.273 (6.93) 0.044 (1.12) 0.553 (14.05) 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 MM Series Issue March 2009 Sheet 2 of 3 Metal Glaze™ General Purpose Surface Mount Power Resistor Standard Reel Packaging per EIA-481: Size Code Industry Footprint B 1206 F 2512 H 3610 Reel Diameter* Quantity Per Reel 7″ 2,500 max. 13″ 10,000 max. 7" 1,500 max. 13″ 5,000 max. 13″ 1,500 max. Carrier Tape Width Component Pitch 8mm 4mm 12mm 4mm 24mm 4mm *The 13″ reel is considered standard and will be supplied unless otherwise specified. Power Derating Curve Repetitive Surge Curve 1000 100 Peak Power (watts) Percent Relative Power 120 1/8, 1/2, 1 80 60 2 40 2 1 100 1/2 1/8 10 20 0 30 40 50 60 70 80 90 100 110 120 130 140 150 Ambient Temperature (°C) 1 0.0001 0.0010 0.0100 0.1000 1.0000 .1msec 1msec 10msec 100msec 10000msec Surge or Pulse Duration (seconds) Note: Use for repetitive pulses where the average power dissipation is not to exceed the component rating at 70C. Surge handling capacity for low-repetitive surges may be significantly greater than shown above. Contact factory for recommendations. Ordering Data Sample Part No. MMA0204 50 2203 F IRC Type (MMA0204, MMB0207, MMC0310) Temperature Coefficient 50 = ±50 ppm/°C; 100 = ±100 ppm/°C 13 Note: RoHS compliance is noted by inserting “LF” into the part number immediately following the tolerance designator. RoHS compliant metallization is 96.5% Sn / 3% Ag / 0.5% Cu. RoHScompliant product is NOT backwards compatible to Sn/Pb soldering environments. Resistance 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 (D = 0.5%, F = 1.0%) Packaging Details (BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel) 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 MM Series Issue March 2009 Sheet 3 of 3