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■
R181-1W-510K~10MΩ,UL safety certificate
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| ■ Stability
reaches 2% |
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| ■
Wide resistance range, high accuracy |
| ■
high stability, small size & flame retardant |
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RI81 High voltage,high
resistance ceramic film resistor
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★
Standard
▲ GB/T5729(IEC115-1)Fixed resistor used in electronic
equipment part
1:Generic specification
▲
Q/RU270-2003((corporation standard)RI81 High
voltage, high resistance ceramic film resistor
specification
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★
Dimension
(mm)
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| Type |
Resistor
dimension (max) |
Terminal
dimension |
| D |
L |
d±0.05 |
l±1 |
| RI81-0.5W |
4.3 |
10.5 |
0.7 |
28 |
| RI81-1W |
5.5 |
14.0 |
0.8 |
26 |
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★
Main Specification
|
| Type |
Rated
power (W) |
Resistance
range (Ω) |
Resistance
tolerance
±(%) |
TCR
±(×10-6/℃) |
Limit
voltage
(DC or AC effective value) (V) |
Insulation
voltage
(DC or AC peak value) (V) |
| RI81 |
0.5 |
100K~68M |
2(G)、5(J)
10(K) |
250 |
1000 |
7000 |
| 1 |
100K~68M |
7000 |
10000 |
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★
Main lnspection Items methods & requirements
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| Items |
Requirements |
Methods |
| TCR |
±250×10-6/℃ |
-55℃~+155℃ |
| Endurance
at room temperature |
±（2%R+0.1Ω） |
VR(或Umax）1000h |
| Withstand
voltage |
No
breakage or flashover |
V-block
method，1.42times insulation voltage 1min |
| Solder
ability |
Good
tinning |
235±5℃ ,
2±5s |
| Over-load |
±（0.5%R+0.05Ω） |
2.5VR(orUmax)
5s |
| Terminal
strength |
±（0.5%R+0.05Ω） |
Tensile
0.5W:10N,1W:22.2N
bending 2time
torsion 180℃
2time |
| Resistance
to soldering heat |
±（0.5%R+0.05Ω） |
350±10℃
3.5±5s |
| Fast
temperature change |
±（0.5%R+0.05Ω） |
-55℃/+155℃
5time |
| Vibration |
±（0.5%R+0.05Ω） |
10Hz~500Hz
0.75mm
or 98m/s2 6h |
| Climate
category |
±（2%R+0.1Ω） |
Dry
heat，damp
heat first cycle，cold,…. |
| Steady
damp-heat |
±（2%R+0.1Ω） |
V=0.１√PR
40±2℃
humidity(90~95)%
day56 |
| Endurance
at upper-limit temperature |
±（2%R+0.1Ω） |
V=0
155℃
,1000h |
| Charge/discharge
test |
±20% |
0.5W:1MΩ~68MΩ,1W:100KΩ~68MΩ
asUL1676,6.3
U=10KV、Cd=0.001μf，Period
of puls5s 50time |
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Specification are subject to change without
notice.
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