FEATURES
■ RI85 high voltage free-inductance metal glazed resistors are manufactured on proceeding of planer designed ,thick-film printing and firing and laser trimming.So that the conductor track are very fair、stability and reliability .They are also manufactured according as user’srequirement.
■ Stable characteristics of moisture resistance up to high resistance range.
■ Products meet EU-RoHS requirements.EU-RoHS regulation is not intended for Pb-glass contained in resistor element.
DERATING CURVE
For resistors operated at an ambient temperature of 70oC or above, a power rating shall be derated in accordance with the above derating curve.
MAIN PARAMETER
|
Type |
Rated power（W） |
Resistance range |
Resistance tolerance |
Max working voltage(KV) |
Dimensions（mm） |
||
|
A |
B |
C±0.05 |
|||||
|
RI85 |
5W |
0.1M-1.5G |
±1% |
7 |
8.3±0.5 |
25 ±1 |
0.78 |
|
8W |
0.1M-2.0G |
10 |
8.3±0.5 |
40 ±2 |
1.0 |
||
|
10W |
0.1M-2.5G |
15 |
8.3±0.5 |
53 ±2 |
|||
|
15W |
0.5M-5.0G |
20 |
8.3±0.5 |
77 ±2 |
|||
|
25W |
0.5M-10G |
25 |
8.3±0.5 |
125 ±2 |
|||
|
30W |
0.5M-10G |
30 |
8.3±0.5 |
152 ±2 |
|||
|
10W |
0.1M-2.5G |
10 |
11.6±0.5 |
42 ±2 |
|||
|
15W |
0.1M-2.5G |
15 |
11.6±0.5 |
52 ±2 |
|||
|
20W |
0.5M-5.0G |
20 |
11.6±0.5 |
72 ±2 |
|||
|
25W |
0.5M-10G |
25 |
11.6±0.5 |
102 ±2 |
|||
|
40W |
0.5M-10G |
30 |
11.6±0.5 |
152 ±2 |
|||
Rated Ambient Temperature ：+70℃
Operating Temperature Range：-55℃～+225℃
Rated voltage = √Power Rating×Resistance value
ELECTRICAL PERFORMANCE
|
Test Items |
Performance Requirements |
Test Methods |
|
Voltage Proof |
No,breakdown or flashover |
Wrapping foil method AC 1000V、1 min±5S |
|
Short Time Overload |
△R≤±(1%R+0.05Ω) |
2 times rated voltage (≤1.5 times Max working voltage)、5s |
|
Solderability |
Over 95% of area wire covered with solder |
260±10℃、2±0.5S |
|
Robustness of Terminations |
△R≤±(1%R+0.05Ω) |
Tensile:20N、10±1S Bending:2×90° Torsion:2×180° |
|
Resistance to soldering heat |
△R≤±(1%R+0.05Ω) |
260±10℃、10±1S or 350±5℃ 3.5±0.5S |
|
Rapid change temperature |
△R≤±(1%R+0.05Ω) |
-55±3℃、30min; 155±3℃、30min 5 cycles |
|
Intermittent overload |
△R≤±(5%R+0.1Ω) |
2.5 times of rated voltage for 1S ON,25S OFF;1000 cycles. |
|
Temperature Coefficient |
TCR≤±200PPM/℃ |
Room Temperature +100℃、and keep on 30～40min |
|
Endurance |
△R≤±(5%R+0.1Ω) |
70±2℃、1000h，Rated direct voltage 1.5h ON、0.5h OFF cycles. |
|
Damp Heat Steady State |
△R≤±(5%R+0.1Ω) |
40±2℃、90～95%RH、56 days. |
|
Anti-surge characteristics |
△R≤±（5%R+0.1Ω） |
Discharge test : applying to 1.5 times Max working voltage Charging for 4.5 S and discharge for 0.5 S, for 10 times impact test. |
