High Reliability
Surface Mount Resistor
MCHP Series
•
•
•
•
•
•
•
DESC Approved
Excellent surge capability
Reliable Metal Glaze™ technology
Superb solderability - reflow and wave
Operating temperature -55°C to +150°C
Minimum board real estate requirements
Established SPC and continuous improvement programs
Metal Glaze™ thick
film element fired
at 1000°C to solid
ceramic substrate
High
temperature
dielectric
coating
Solder over nickel
barrier
The MCHP High Reliability Surface Mount Resistors are part
of the RG product family of precision resistors developed by
IRC in 1960 to meet the stringent demands of the military
market. In leaded form, these resistors are qualified to level
S under MIL-R-39017 and MIL-R-55182. The MCHP resistor
utilizes the core element from this series, but with modified
contacts and encapsulation.
The MCHP High Reliability Surface Mount Resistors are in compli-
ance to DESC drawings 85083 (MCHP 1/8) and 87037 (MCHP 1)
and are supplied in accordance tot he requirements of MIL-R-55342.
Under this specification, all resistors are subjected to "Thermal
Shock". Samples are selected from each lot and tested to "TCR",
"STOL", "Terminal adhesion", "Solderability", and "Visual" to ensure
the lot is in conformance to specified requirements.
Electrical Data
Size
Code¹
B
D
F
H
Industry
Footprint
1206
2010
2512
3610
IRC
Type
MCHP 1/8
MCHP 1/2
MCHP 1
MCHP 2
DESC
Drawing
95011
4
94048
95006
5
94047
Rated Power²
(watts)
0.125 @ 70°C
0.5 @ 70°C
1.0 @ 70°C
2.0 @ 25°C
Working
Voltage³
200
300
350
500
Maximum
Voltage
400
600
700
1000
Resistance
Range (ohms)
0.1 to 1.0M
0.1 to 1.6M
0.1 to 2.2M
0.2 to 2.2M
Tolerance
(±%)
1, 2, 5
1, 2, 5
1, 2, 5
1, 2, 5
TCR
(ppm/°C)
100
100
100
100
¹ See page 8 for product dimensions, recommended solder pads, and standard packaging. ² For operation above 70°C, use power derating curve. ³ Not to exceed
√
P x R
4
Formerly 85083
5
Formerly 87037
Power Derating Curve
120
100
% of Rated Power
80
60
40
20
95
00
6,
94
04
7
95
01
1,
94
04
8,
0
25 35 45 55 65 75 85 95 105 115 125 135 145
30 40 50 60 70 80 90 100 110 120 130 140 150
Ambient Temperature (°C)
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 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
MCHP Series Issue September 2008 Sheet 1 of 2
High Reliability
Surface Mount Resistor
Environmental Data
Characteristics
Temperature Coefficient
Thermal Shock
Low Temperature Operation
Short Time Overload
High Temperature Exposure
Resistance to Bonding Exposure
Solderability
Moisture Resistance
Life Test
Terminal Adhesion Strength
Resistance to Board Bending
Maximum Change
±100 ppm/°C
±0.5% + 0.01 ohm
±0.25% + 0.01 ohm
±0.25% + 0.01 ohm
±1% for R>100K ohm
±0.5% + 0.01 ohm
±0.25% + 0.01 ohm
95% minimum coverage
±0.5% 0.01 ohm
±0.5% 0.01 ohm
±1% + 0.01 ohm
no mechanical damage
±1% + 0.01 ohm
no mechanical damage
IRC Advanced Film Division
Test Method
MIL-R-55342E Par 4.7.9 (-55°C + 125°C)
MIL-R-55342E Par 4.7.3 (-65°C + 150°C, 5 cycles)
MIL-R-55342E Par 4.7.4 (-65°C @ working voltage)
MIL-R-55342E Par 4.7.5
2.5 x
√
P x R for 5 seconds
MIL-R-55342E Par 4.7.6 (+150°C for 100 hours)
MIL-R-55342E Par 4.7.7 (Reflow soldered to board at 260°C for 10 sec-
onds)
MIL-STD-202, Method 208 (245°C for 5 seconds)
MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours)
MIL-R-55342E Par 4.7.10 (2000 hours at 70°C intermittent)
1200 gram push from underside of mounted chip for 60 seconds
Chip mounted in center of 90mm long board, deflected 5mm so as to
exert pull on chip contacts for 10 seconds
Ordering Data
Sample Part No.
DESC Drawing Number
Resistance Value
(CHP 1/8, CHP 1/2, CHP 1, or CHP 2)
(100 ohms and greater - First 3 significant digits 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, 1.6 ohm = 1R60, 0.25 ohms = R250
95011
- 2213 - F - 13
Tolerance
(F = 1.0%; G = 2.0%; J = 5.0%)
Packaging Code*
(BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel)
© IRC 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
MCHP Series Issue September 2008 Sheet 2 of 2
Microcontroller MCU
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