邮箱：510406164@qq.com惠州市众佳电子有限公司
Huizhou Zhongjia Electronics Co., Ltd.
众佳电子
全国服务热线
13714669926
全国服务热线
13714669926Product Center
服务热线
15814620810
·Rated power: 25W
·Resistance range: 10-20K
·Maximum accuracy: ± 5%
·Resistance technology: wire wound resistance
·Packaging material: enamel
·Packaging method: glazed
·Working temperature range: -55 ℃~155 ℃
·Dimensions: L=51mm W=21mm
·Application areas: national defense, military industry, transportation and railway, instrumentation and meters
■ Product features
1. The surface of the resistor is coated with glaze after four rounds of sintering, which effectively protects the resistance wire and improves the service life of the resistor.
2. Using military grade 95 ceramic tubes, it has better heat dissipation performance, longer service life, and is not easily damaged.
3. The use of copper tin plated terminals allows for close contact with resistance wires, resulting in better conductivity and reducing energy loss in the first stage.
■ Specifications, dimensions, and technical specifications
◆ Specifications, dimensions, and units of measurement: mm
|
model |
Rated power (W) |
Dimensions (mm) |
Weight (g) |
|||||||||||
|
L |
D |
d |
H |
h |
L1 |
K |
b |
t |
d1 |
C |
RX20 |
RX20-T |
||
|
RX20(T) |
25W |
51±2 |
21±2.5 |
12±0.8 |
39 |
35±2.5 |
30 |
6 2 |
3.5±0.8 |
4.5 |
2 |
8±1.5 |
57 |
67 |
◆ Technical indicators
|
model |
Rated power (W) |
Resistance range (Ω) |
accuracy |
Temperature coefficient (PPM/℃) |
|
|
RX20 |
RX20-T |
||||
|
RX20(T) |
25W |
10～20K |
10~200 |
±5%，±10% |
±250 |
■ Power consumption reduction curve chart
Customer selection, for exampleRX20 100W 10 Ω± 5%, model: RX20-100-10R-J; Low inductance, add the letter N to the model, for example: N RX20-100-10R-J
|
RX20 |
100 |
10R |
J |
B |
|
code |
Rated power |
resistance |
accuracy |
temperature coefficient |
|
RX20 (T) series |
05=5W 10=10W 25=25W 100=100W 300=300W |
0R1=0.1Ω 0R22=0.22Ω 100R=100Ω |
J=±5% K=±10% |
L=±250PPM |
■ Suggestions for using resistors
It is best to leave 1.5 times the power margin for resistors in circuits. For example, if the voltage in the circuit is 100V and the current is 0.01A, the calculated power is P=100 * 0.01=1W. At this time, a resistor of 1W cannot be used, and 1 * 1.5=1.5W is calculated. If there is no 1.5W resistor, a resistor of 2W is needed.
