产品名称：RX27-3型瓷壳绕线电阻
Product name: RX27-3 wire wound resistors in ceramic casing
型 号：RX27-3
Type: RX27-3
产品介绍：RX27型瓷壳绕线电阻具有结构牢固，机械强度高等优点，由于采用了陶瓷外壳，具有耐压，不燃特性，安全性能高，产品具有低电感或无感，精度高，无噪音，温度系数低，稳定性高，高频性能好等特点。
Product introduction: RX27 series wire wound resistors in ceramic casing have many excellences of firm structure, high machine intensity etc. For use the ceramic casing, it has the ability of resistance to voltage, inflammability, high secure, the product has the characteristic of low inductance or no inductance, high precision, no noise, low temperature coefficient, high stability, high frequency etc.
用 途：陶瓷绕线电阻主要用于自动化控制系统，变频控制系统，电源设备，高档音响等电路中。
Purpose: wire wound resistor in ceramic casing is used in circuit of automatic control system, frequency conversion control system, power supply, top grade acoustics.
■ 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:≤275℃
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≤±（2%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≥20MΩ 1min |
JIS-C-5202 5-6 DC500V |
|
|
耐电压
Dielectric withstanding voltage |
无可见损伤，无飞弧击穿
no evidence of mechanical damage or insulation breakdown |
JIS-C-5202 5-7
AC:1500V 1minute |
|
|
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
1.5mm 10~55 Hz/ 1Minute |
|
|
可焊性
Solderability |
新焊锡覆盖率为75%以上
75% coverage min. |
JIS-C-5202 6-5
230℃ 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 ΔR≤±（2%R+0.05Ω）
no evidence of mechanical damage |
JIS-C-5202 7-3
额定负载30分钟后-30℃温度下15min
After 30minutes rating load , 55℃ 15mintues |
|
|
耐湿性
Humidity |
无可见损伤，标志清晰，ΔR≤±（3%R+0.05Ω），绝缘电阻≥2.5MΩ
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)
RX27-3 type
|
Power
功率
(W) |
Dimensions 尺 寸 （mm） |
Resistance RangeΩ
阻值范围 |
|
L |
S
±1.5 |
B
±1.0 |
B1
±0.3 |
B2
±0.2 |
B3
±0.2 |
H
±1.0 |
H1
±1.0 |
H2 |
(H3) |
t |
|
3 |
24±1.0 |
12.5 |
9.0 |
5 |
1.4 |
1.6 |
9.0 |
4.5 |
10 |
23.5 |
0.5 |
0.18-680 |
|
5 |
27±1.0 |
15.0 |
9.5 |
5 |
1.4 |
1.6 |
9.5 |
4.5 |
10 |
24 |
0.5 |
0.18-680 |
|
7 |
35±1.5 |
22.5 |
9.5 |
5 |
1.4 |
1.6 |
9.5 |
4.5 |
10 |
24 |
0.5 |
0.22-1.5K |
|
10 |
48±1.5 |
35.0 |
9.5 |
5 |
1.4 |
1.6 |
9.5 |
4.5 |
10 |
24 |
0.5 |
0.33-2.2K |
|
12 |
48±1.5 |
32.5 |
12.5 |
10 |
2.7 |
3.0 |
12.5 |
7.0 |
15 |
34.5 |
0.5 |
0.5-2.7K |
|
16 |
63.5±1.5 |
50.0 |
12.5 |
10 |
2.7 |
3.0 |
12.5 |
7.0 |
15 |
34.5 |
0.5 |
0.75-3.3K |
■ 额定功耗曲线 Power Derating Curve
|
环境温度
environment temperature |
0~70℃ |
70℃以上
above 70℃ |
|
功率损耗
power derating |
100% |
见图
see the fig. |
电阻功率对照
|
环境温度℃
environment temperature |
功率对照（Power） |
|
70℃ |
2 |
3 |
5 |
7 |
10 |
12 |
16 |
20 |
24 |
32 |
|
25℃ |
2 |
3 |
5 |
7 |
10 |
15 |
20 |
25 |
30 |
40 |
■ 产品分类标准 classified standard
● 命名方式 how to order
