产品名称：RX20型被釉绕线固定电阻器
Product name: RX20 wire-wound glaze -coating fixed resistor
型 号：RX20
Type: RX20
产品介绍：RX20型电阻器为被釉型绕线电阻器，被釉产品抗污染性强，耐化学气体侵蚀，耐高温，可在恶劣环境中使用。产品结构合理，具有较强的耐久性和耐振动性，安装时使用安装件固定电阻器。
Product introduction: RX20 series resistor is vitreous enameled wire wound resistor, vitreous enameled product has the high ability of resistance to pollution ,chemic gas corroding and high temperature, and can be used in wicked environment. The structure of product is rationalization, and it has the ability of resistance to endurance and vibration, use fixing parts to fix resistor.
用 途：可广泛用于各种电气设备和电子仪器的直流或交流电路中作分流或负载电阻等。
Purpose: It can be used as shunt and load resistor in DC or AC circuit of electric facility and electron instrument widely.
■电气及机械特性 Electrical and Mechanical specifications
|
特性
Characteristics |
规格
Limits |
试验方法
Test methods |
|
|
阻值及阻值允许偏差
resistance and resistance tolerance |
10Ω≤R±5%（J） , 10Ω>R±10%（K） |
JIS-C-5202 5-1 |
|
|
额定负荷
Power rating load |
表面最高温度:≤325℃
the highest temperature on the surface |
JIS-C-5202 5-4 |
|
|
短时过负荷
Short-time overload |
无可见损伤，ΔR≤±（5%R+0.05Ω）
no evidence of mechanical damage |
JIS-C-5202 5-5 10倍 5秒
1000% rated power 5 seconds |
|
|
绝缘电阻
Insulation resistance |
R≥100MΩ 1min |
JIS-C-5202 5-6 DC500V |
|
|
耐电压
Dielectric withstanding voltage |
无可见损伤，无飞弧击穿 ΔR≤±（0.1%R+0.05Ω）
no evidence of mechanical damage or insulation breakdown |
JIS-C-5202 5-7 |
|
|
电阻温度特性
Temperature coefficient |
±260PPM/℃ |
JIS-C-5202 5-2 b |
|
|
端子强度
Terminal strength |
无松动或机械损伤
not loosely and no evidence of mechanical damage |
JIS-C-5202 6-1(2) |
|
|
电阻体强度
Resistor strength |
无可见损伤
no evidence of mechanical damage |
JIS-C-5202 6-2 |
|
|
耐振性
Vibration |
无可见损伤，ΔR≤±（0.1%R+0.05Ω）
no evidence of mechanical damage |
JIS-C-5202 6-3 |
|
|
可焊性
Solderability |
新焊锡覆盖率为95%以上
95% coverage min. |
JIS-C-5202 6-5 270℃ 5 seconds |
|
■环境特性 Environmental specifications
|
特性
Characteristics |
规格值
Limits |
试验方法
Test methods |
|
|
耐热性
Heat resistance |
除端子外无明显变色和损伤，标志清晰
no deterioration of protective coatings or markings |
JIS-C-5202 7-2 350℃ 2hours |
|
|
热冲击
Thermal shock |
无可见机械损伤
no evidence of mechanical damage |
JIS-C-5202 7-3
额定负载30分钟后-55℃温度下15min
After 30minutes rating load , 55℃ 15mintues |
|
|
耐湿性
Humidity |
无可见损伤，标志清晰，ΔR≤±（5%R+0.05Ω），绝缘电阻≥100MΩ
no deterioration of protective coatings or markings |
JIS-C-5202 7-5
DC100 40℃ 95%RH 500hours |
|
|
耐久性 (额定负载)
Humidity Load life |
外观无可见损伤，标志清晰，ΔR≤±（5%R±0.05Ω）
no evidence of mechanical damage
no deterioration of protective coatings or markings |
JIS-C-5202 7-10 100%负荷 rated power load 90 min ON 30 min OFF 500hours |
|
■规格 Specification
外型、尺寸 Configuration (m/m)
|
Power
(W)
功率 |
尺 寸mm |
Resistance Range
阻值范围
（Ω） |
|
L |
D |
d |
h |
b |
t |
d1 |
|
8 |
35±1.5 |
14±2.0 |
5.5±0.5 |
28.5±2.5 |
3.5±0.8 |
4.5 |
2 |
5.1—3300 |
|
10 |
41±1.5 |
5.1—7500 |
|
16 |
45±1.5 |
17±2.0 |
8±0.5 |
31±2.5 |
5.1—10000 |
|
20 |
51±2 |
5.1—13000 |
|
25 |
21±2.5 |
12±0.6 |
35±2.5 |
10—16000 |
|
30 |
71±2.2 |
10—24000 |
|
40 |
87±2.2 |
20—33000 |
|
50 |
91±2.4 |
29±3.0 |
20±1.1 |
43±3.0 |
4.5±1 |
6 |
2.5 |
20—33000 |
|
75 |
140±3.2 |
24—43000 |
|
100 |
170±3.5 |
24—56000 |
|
150 |
215±4.0 |
20-75000 |
|
200 |
270±5.0 |
19±1.1 |
20-100000 |
■ 额定功耗曲线 Power Derating Curve
|
环境温度
environment temperature |
0~20℃ |
20℃以上
above 20℃ |
|
功率损耗
power derating |
100% |
见图
see the fig. |
■ 产品分类标准 classified standard
● 命名方式 how to order
● 型号说明 type explanation
RX20为被釉绕线固定电阻器，RX20（T）为被釉绕线可调电阻器
RX20 is the wire-wound glaze -coating fixed resistor
RX20(T)is the wire-wound glaze -coating adjustable resistor glaze
