Precision Power Wirewound Resistors - KNP-R Series
Precision Power Wirewound Resistors - KNP-R Series
Token provides precision power wirewound resistors. KNP-R series meeting MIL-R-26E (U and V characteristics) and surface temperature (hot spot) 375°C max.
Resistors with a wide range of 0.01Ω ~ 82kΩ, covering applications from precision to power.
Products with lead-free terminations meet EU RoHS and China RoHS requirements.
Characteristics U:
-
275°C Maximum hot spot temperature.
1% Maximum ΔR in 1000 hours load life.
Characteristics V:
- 375°C Maximum hot spot temperature. 3% Maximum ΔR in 1000 hours load life.
Token KNP-R series have an operating temperature range of -55°C ~ +375°C, They must be derated at high ambient temperatures according to the chart below.
|
  |
| Type |
MIL
-
R-26E |
Power Rating
(W) |
Max. Working
Voltage (V) |
Resistance Range (Ω) |
Dimensions (mm) |
| U |
V |
U |
V |
0.1% 0.25% 0.5% |
1% 2% 3% 5% |
L±0.81 |
D±0.81 |
d±0.1 |
| KNP-R1/4 |
- |
0.40 |
- |
20 |
- |
10~950 |
1~3.4K |
6.35 |
1.98 |
0.51 |
| KNP-R1/2 |
RW70 |
0.75 |
- |
29 |
- |
10~1.3K |
1~4.9K |
7.92 |
1.98 |
0.51 |
| KNP-R1A |
- |
1.00 |
- |
53 |
- |
1~2.7K |
0.1~10.4K |
10.31 |
2.36 |
0.64 |
| KNP-R1 |
RW69 |
1.10 |
- |
62 |
- |
1~4.0K |
0.1~15K |
13.49 |
2.36 |
0.64 |
| KNP-R2A |
- |
2.50 |
3.25 |
138 |
157 |
1~8.6K |
0.01~32.3K |
12.70 |
5.33 |
0.81 |
| KNP-R2 |
RW79 |
3.00 |
3.75 |
135 |
148 |
1~5K |
0.01~2K |
13.49 |
4.06 |
0.81 |
| KNP-R3A |
- |
3.00 |
3.75 |
135 |
148 |
1~6.5K |
0.01~34.5K |
14.27 |
5.33 |
0.81 |
| KNP-R3 |
- |
3.25 |
4.75 |
185 |
220 |
1~11.4K |
0.01~42.1K |
20.62 |
5.33 |
1.02 |
| KNP-R4 |
RW67 |
4.00 |
5.50 |
210 |
250 |
1~12.7K |
0.01~47.1K |
15.88 |
7.62 |
1.02 |
| KNP-R5 |
RW74 |
5.00 |
6.50 |
330 |
376 |
0.5~24.5K |
0.01~51K |
22.22 |
7.62 |
1.02 |
| KNP-R7 |
RW68 |
7.00 |
9.00 |
504 |
576 |
0.5~41.4K |
0.01~75K |
30.94 |
9.52 |
1.02 |
| KNP-R10 |
RW78 |
10.00 |
13.00 |
799 |
911 |
0.5~71.3K |
0.01~82K |
45.21 |
9.52 |
1.02 |
| Temperature Coefficient: 1Ω and below ±150 ppm/°C, 1Ω to 9.9Ω ±100 ppm/°C, 10Ω and above ±100 ppm/°C, (50 ppm/°C on request) |
| Test Items |
Test Method |
Specifications |
| Short Time Overload |
2.5 times of rated voltage 5 sec. |
ΔR±(2%+0.05Ω) |
| Rated Load |
Rated wattage 30 minutes. |
ΔR±(1%+0.05Ω) |
| Voltage Withstanding |
500VAC 1 minute. |
ΔR±(1%+0.05Ω) |
| Insulation Resistance |
500V |
20MΩ |
| Temp. Cycle |
-20°C ~ 85°C 5 cycles |
ΔR±(1%+0.05Ω) |
| Soldering After Resistance |
235°C for 3 sec |
ΔR±(0.5%+0.05Ω) |
| Incombustibility |
16 times of rated wattage for 5 min. |
Not flamed |
| Load Life |
+25°C, 1.5Hrs on ~ 0.5Hrs off cycle, 1000 Hrs. |
U: ΔR±(1%+0.05Ω)
V: ΔR±(3%+0.05Ω) |
- 1 Part Number
- 2 Characteristic
| Code | Characteristic |
| U | 275°C |
| V | 375°C |
- 3 Resistance
| Code | Resistance |
| 0R1 | 0.1Ω |
| 1R | 1Ω |
| 100R | 100Ω |
| 1K | 1000Ω |
- 4 Resistance Tolerance
| Code | Resistance Tolerance |
| B | ±0.1% |
| C | ±0.25% |
| D | ±0.5% |
| F | ±1% |
| G | ±2% |
| H | ±3% |
| J | ±5% |
- 5 Package
| Code | Package |
| TB | Taping Box |
| P | Bulk |
|
