IRC TT MRC1-100-1503-J-7 Metal glaze high power density surface mount power resistor Datasheet

Metal Glaze™ High Power
Density Surface Mount
Power Resistor
Metal Glaze™ thick film
element fired at 1000°C to
solid ceramic substrate
MRC Series
• 1/2 watt in 1/8 watt package
• 1 watt in 1/2 watt package (2010 footprint)
• MRC1/2: 0.05 Ω to 1.0 Ω
(contact factory for higher values)
• 150°C maximum operating temperature
• Superior surge handling capability
High temperature
dielectric coating
60/40 Solder over nickel barrier
Environmental Data
Size
Industry
Code1 Footprint
C
1206
E
2010
IRC
Type
Max.
Working
Power Rating Voltage2
MRC1/2
1/2W @ 70°C
MRC1
1W @ 70°C
200
350
Tolerance
Max.
Resistance
TCR
(±%)3
(ppm/°C)3
Voltage Range (ohms)3
400
700
Product
Catagory
0.1 to 0.99
1,2,5
100
Low Range
1.0 to 10K
1,2,5
50,100
Standard
20 to 10K
0.25, 0.5
50,100
Tight Tolerance
0.05 to 0.099
2,5
200
Low Range
0.10 to 1.0
1,2,5
100
Low Range
MRC Applications:
The MRC1/2 will dissipate 1/2 watt at 70°C on a 1206 footprint, while the MRC 1 will dissipate 1 watt at 70°C on
a 2010 footprint. The MRC is recommended for applications where board real estate is a major concern. Due
to high power density and superior surge handling capability, it is also recommended as a direct replacement on
existing board designs where standard 1206 and 2010 resistors are marginal or failing.
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
±(1.0% + 0.01Ω)
MIL-R-55342E Par 4.7.5
2.5 x √ PxR 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
±(1.0% + 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
±(1% + 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.
© IRC Wirewound 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
MRC Series Issue June 2008 Sheet 1 of 2
Metal Glaze™ High Power
Density Surface Mount
Power Resistor
Repetitive Surge Curve
Peak Power (watts)
1000
MRC 1
100
MRC 1/2
10
1
0.0001
0.001
0.01
0.1
1
Surge or Pulse Duration (seconds)
Note: Use for repetitive pulses where the average power dissipation
is not to exceed the component rating at 70°C. Surge handling capacity
for low-repetitive surges may be significantly greater than shown above.
Contact factory for recommendations.
Power Derating Curve
Ordering Data
Sample Part No.
MRC1/2 - 100 - 1000 - F - 13
% Of Rated Power
100
IRC Type
(MRC 1/2 & MRC 1)
Temperature Coefficient
60
50 ppm, 100 ppm, 200 ppm
Resistance Value
0
25
70
150
Ambient Temperature (°C)
(100Ω and greater - First 3 significant figures plus 4th digit multiplier)
Example: 100Ω = 1000, 1000Ω = 1001, 150,000Ω = 1503
(Less than 100Ω - "R" is used to designate decimal)
Example: 51Ω = 51R0, 1Ω = 1R00, 0.25Ω = R250
Tolerance
(C = 0.25%, D = 0.5%, F = 1.0%, G = 2.0%, J = 5.0%)
Packaging Code*
(BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel)
© IRC Wirewound 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
MRC Series Issue June 2008 Sheet 2 of 2
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