Categories: | 
Wirewound Fixed Resistors（RX21/KNP）
·Features：
1.Good high-temperature using, Low CTR(200/100/50 ppm/℃), Low Noises, High-load-power.
2.Environment of using: -55℃-+275℃
3.NPainting，1/4W-6W with color-ring, and pray color paint; Over 7W with printer logo, and green paint.
4.Tolerance:F(±1%)、G(±2%)、J(±5%)、K(±10%)
·Dimensions and Resistance range
|
Tpye |
Power |
Resistance value Range |
Dimensions (mm) |
Max Working Voltage |
Max Loading Voltage |
Max Insulation Voltage |
||
|
L±1 |
D±0.5 |
d±0.05 |
||||||
|
KNP |
1/4W |
0R01-100R |
6.0 |
2.3 |
0.42 |
150V |
300V |
250V |
|
KNP |
1/2W |
0R01-270R |
9.0 |
3.2 |
0.55 |
150V |
400V |
250V |
|
KNP |
1W |
0R01-470R |
11.2 |
4.3 |
0.65 |
150V |
400V |
250V |
|
KNP |
2W |
0R01-1K |
15.2 |
5.2 |
0.75 |
250V |
400V |
350V |
|
KNP |
3~4W |
0R01-1K |
17.0 |
6.0 |
0.75 |
350V |
600V |
500V |
|
KNP |
5~6W |
0R01-1K |
24.0 |
8.0 |
0.75 |
350V |
600V |
500V |
|
KNP |
7~8W |
0R01-1K |
31.0 |
8.0 |
0.75 |
350V |
600V |
500V |
|
KNP |
9~10W |
0R01-1K |
37.0 |
8.0 |
0.75 |
500V |
600V |
750V |
|
KNP |
11~15W |
0R01-1K |
42.0 |
8.0 |
0.75 |
500V |
600V |
750V |
|
KNP |
15~20W |
0R01-1K |
47.0 |
8.0 |
0.75 |
500V |
600V |
750V |
|
KNP |
20~25W |
0R01-1K |
53.0 |
8.0 |
0.75 |
750V |
800V |
1000V |
|
KNP |
30W |
0R01-1K |
67.0 |
8.0 |
0.75 |
750V |
800V |
1000V |
·Rated Power Derating Curve
·Performance Of Test
|
Test Item |
Test Condiion |
Standard |
|
TCR |
Test the resistance value changing-rate per degree |
±300PPM/℃ |
|
Overload with short time |
1/4w with 5 times rated power,5-10W with 10 times rated power or max working voltage(Lower value), for 5s. |
△R≤±（2%R+0.05Ω） |
|
Continue overload |
2.5 times rated voltage or max working voltage(Lower value), ON-1s, OFF-25s, total cycle time 10000±100 |
|
|
Sn-heat |
In the Sn-tin of 350±10℃ for 3s |
△R≤±（1%R+0.05Ω） |
|
Solderability |
In the Sn-tin of 235±10℃for 3s |
area : 95%以上 |
|
Temprature Cycle |
Under the 5 cycles of the -55℃ for 30 min, 25℃ for 15 min, and the 155℃ for 30 min |
△R≤±（1%R+0.05Ω） |
|
Aging of Humidity |
In the box of 40±2℃ and 90-95% humidity, with rated voltage or Max Working Voltage(Lower Value), total time 1000 hours(ON-1.5H, OFF-0.5H) |
△R≤±（5%R+0.05Ω） |
|
Aging of Rated power |
In the 70±2℃ test box，With the rated powr or max working voltage(Lower value), total time 1000hours(ON-1.5H, OFF-0.5H) |
△R≤±（5%R+0.05Ω） |
|
Inflammability
|
With the 5/10/16 times rated power for 5mins |
|
●PartNO.Regulation
| KNP | 5W | O | 100R | J | T52 |
| Type | Rated Power | Code or NULL | Resistance | Tolerance | Forming |
| Wire-wound plug-in resistor | 1/4W~30W | 0R100=0.1R
0R220=0.22R 10R00=10R 10K00=10KR |
F=±1% G=±2% J=±5% k=±10% |
TB:Belt P:bulk |