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.
A subsidiary of
TT electronics plc
Issue June 2010
55
General
Purpose
• •
• •
• Flameproof
• •
• •
• Meets overload test of UL#1412
• •
• •
• Meets solvent test of method 215 of MIL-STD-202
• •
• •
• Low cost alternative for power carbon composition
and wirewounds
••
••
• TCR ±200 ppm
••
••
• Coating meets UL-94V-0
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
Noise (µV/v)
Nominal Resistance (ohms)
Current Noise
Percent Rated Load
Ambient Temperature (°C)
Power - Temperature Derating
MO SERIES
METAL OXIDE RESISTORS
Surface Temperature Rise vs Load
Load Factor(%)
Temperaure Rise (°C)
0 25 50 75 100
150
100
50
0
MO1
MO2
MO3
MO1/2
DIMENSIONS (Inches and (mm)):
MO 1/2
MO 1
MO 2
MO 3
MO 5
A
1.10±0.08 (28.0±2.0)
1.10±0.08 (28.0±2.0)
1.26±0.12 (32.0±3.0)
1.38±0.12 (35.0±3.0)
1.38±0.12 (35.0±3.0)
B
0.35±0.04 (9.0±1.0)
0.43±0.04 (11.0±1.0)
0.59±0.02 (15.0±0.5)
0.71±0.04 (17.5±2.0)
0.96±0.04 (24.5±1.0)
C
0.024±0.002 (0.60±0.05)
0.028±0.002 (0.70±0.05)
0.029±0.002 (0.75±0.05)
0.031±0.002 (0.80±0.05)
0.031±0.002 (0.80±0.05)
D
0.14±0.02 (3.5±0.5)
0.18±0.02 (4.5±0.5)
0.2±0.04 (5.0±1.0)
0.26±0.04 (6.5±1.0)
0.34±0.04 (8.5±1.0)
PACKAGING:
MO 1: 2500/reel
MO 2: 1000/reel
MO 3: 1000/ammo box
MO 5: 1000/bulk box
All Above: 1000/bulk box
PERFORMANCE CHARACTERISTICS (Tested Per MIL-R-22684 Rev. C):
ELECTRICAL
Power Ratings @ 70°C (watts)
Derated to 0 Load at
Maximum Working Voltage (volts)
Operating Temperature Range
Resistance Range (ohms)
Moisture Resistance
Thermal Shock
Load Life @ 70°C - 1000 hrs.
Shock and Vibration
Resistance to Soldering Heat
Terminal Strength
Dielectric Withstand Voltage
Maximum Pulse Voltage
Insulation Resistance
Voltage Coefficient
Short Time Overload
MO 1/2
1/2
200°C
250
-55°C to +200°C
0.1 - 75K (±5%)
0.1 - 75K (±1%)
±1.5%
±1%
±2%
±0.5%
±0.55+0.05Ω
±0.5%
400V RMS
400V
10,000 meg min.
0.001%/V
±(0.5+0.05Ω)
MO 1
1
200°C
350
-55°C to +200°C
0.1 - 120K (±5%)
0.1 - 100K (±1%)
±1.5%
±1%
±2%
±0.5%
±0.55+0.05Ω
±0.5%
700V RMS
750V
10,000 meg min.
0.001%/V
±(0.5+0.05Ω)
MO 2
2
200°C
350
-55°C to +200°C
0.1 - 150K (±5%)
0.1 - 120K (±1%)
±1.5%
±1%
±2%
±0.5%
±0.55+0.05Ω
±0.5%
700V RMS
1000V
10,000 meg min.
0.001%/V
±(0.5+0.05Ω)
MO 3
3
200°C
500
-55°C to +200°C
1 - 150K (±5%)
10 - 10K (±1%)
±1.5%
±1%
±2%
±0.5%
±0.55+0.05Ω
±0.5%
800V RMS
1500V
10,000 meg min.
0.001%/V
±(0.5+0.05Ω)
MO 5
5
200°C
750
-55°C to +200°C
1 - 180K (±5%)
10 - 10K (±1%)
±1.5%
±1%
±2%
±0.5%
±0.55+0.05Ω
±0.5%
800V RMS
1500V
10,000 meg min.
0.001%/V
±(0.5+0.05Ω)
Environmental (Operating Temperature Range: -55°C to +200°C)
• •
• •
• Only available in RoHS compliant version
HOW TO ORDER:
Sample Part No.:
MO-1 1001 J
IRC Type
Size
Resistance Value
3 digit range and
1 digit multiplier
Tolerance
J = 5%, F = 1%
RoHS Compliance
LF
LF = RoHS compliant construction
