■ Power Graph (℃)
70℃
■ Hot-Spot Temperature (%)
MO 3B 5B/ MO 7WS MO 2WS/ MO 3WS MO 2B / MO 1WS MO 1B MO 1/2B MO 1/4B
SURFACE TEMP. RISE ( )
Rated Load(%)
Ambient Temperature (℃)
★ Miniature Series: Flameproof Coating , Pink color
■ Electrical Characteristics
Power rating at 70℃ 1/4W 1/2WS 1/2W 1WS
Operating Temp. Range
Max. Working Voltage 200V 250V 250V 300V
No deterioration of coatings and markings
Terminal Strength
Direct load for 10 sec. In the direction off the terminal leads. Tensile:≧2.5kg
★ Rated continuous Working Voltage (RCWV) = POWER.RATING.* RESISTANCE.VALUE
H
28±2.0 26±2.0 35±2.0 32±2.0 35±2.0 35±2.0
Unit: mm
d
Comment
0.55±0.03 0.65±0.03 0.76±0.03 0.76±0.03 0.78±0.03 0.78±0.03
★ Standard Series: Flameproof Coating , Grey color
JIS-C5202 5.6
In V-Block
＞10000MΩ
Load Life Load Life in Humidity
Solder Ability
JIS-C5202 7.10 70℃ at RCWV for 1000hrs.(1.5hrs. on，0.5hrs.off)
JIS-C5202 7.9 40±2℃ 90~95%.5hrs.off)
1W
2WS
2W 3WS
－55℃ to ＋155℃ 350V 350V 350V 400V
600V 600V 600V 700V
500V 500V 500V 600V
1Ω~510KΩ, E24 series
3W 5WS 5W 7WS
400V 750V 750V 750V 700V 1000V 1000V 1000V 600V 1000V 1000V 1000V
JIS-C5202 5.7
In V-Block for 60 seconds
By Type
Pulse Overload
JIS-C5202 5.8 4 times RCWV for 10000cycles(1sec.on，25secs.off)
±(1%+0.05Ω)
Insulation Resistance
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■ Parts Number Explanation ■ Example:
MO 1/4W
F
Product Type
Size (Inch)
1/4W 1/2WS 1/2W
1W 1WS 2W 2WS 3W 5W 5WS 7WS
Resistor Tolerance
■ Dimension
TYPE / Rated Power at 70℃
Standard
Miniature
1/4W
1/2WS
1/2W
1WS
1W
2WS
2W
3WS
3W
5WS
5W
7WS
L
6.3±0.5 9.0±0.5 11.5±1.0 15.5±1.0 17.5±1.0 24.5±1.0
D
2.3±0.3 3.2±0.5 4.5±0.5 5.0±0.5 6.5±0.5 8.5±0.5
JIS-C5202 6.5
260±5℃ for 2±0.5 seconds
±(1.5%+0.05Ω) ±(1.5%+0.05Ω) 95% min. coverage
Resistance to Solvent
JIS-C5202 6.9 Trichroethane for 1 min. with ultrasonic
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■ Metal Oxide Flame-Proof Resistor — MO Series
■ Features
─ Low cost, prompt delivery ─ High power-to-size ratio for significant space savings ─ Excellent long-time stability ─ Complete flameproof construction UL–1412 ─ High surge/overload capability ─ Wide resistance range: 0.1Ω~1mΩ ─ Controlled temperature coefficient ─ Resistance standard tolerance：±5%（consult factory for±2% ±1%） ─ Coating and marking resist trichorethelyne, freon, and other cleaning agents ─ Non-inductive design, resistance range: 0.1Ω~100Ω
Requirements ±(0.25%+0.05Ω)
Temperature Coefficient Resistance (T.C.R.)
Resistance value at room Temperature and room Temperature+100℃
By Type
Dielectric Withstanding Voltage
Max. Overload Voltage 350V 400V 400V 500V
Dielectric Withstanding Voltage
Resistance Range (±1%.±2%.±5%)
350V
350V
350V
400V
● For non-standard parts, please contact our sales dept.
℃ Applied Load % of RCWV
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■ Temperature Coefficient (T.C.R.)
TYPE 1/4W, 1/2WS, 1/2W, 1WS 1W, 2WS, 2W, 3WS, 3W, 5W, 5WS, 7WS
F：±1% G：±2% J：±5%
10R
Resistors Value
P
Package P、W：Tape D：Bulk
05
Quantity 01 ： 1000PCS 05 ： 5000PCS
Max. Value of Temp. Coefficient ppm/℃ ±300 ppm
■ Environmental Characteristics
Performance test
Test Method
Short time Overload
JIS-C-5202 5.5 2.5 times RCWV for 5 seconds