RX24铝壳制动电阻器 |
■ 外型尺寸
型号
|
250℃下额定功率(W)带散热板
|
外形尺寸(mm)
|
|
电 阻 体
|
标准散热板(铝)
|
Amax
|
B |
Lmax |
Hmax |
C |
l |
l1 |
M |
N |
Ф1
|
Ф2
|
表面积cm2 |
厚度(mm) |
RX24 |
5 |
15.5 |
16 |
36.5 |
8 |
8.5 |
11.4 |
12 |
4.4 |
1.5 |
1.5 |
2.2 |
415 |
1 |
3 |
10 |
19.5 |
21 |
40.5 |
10 |
11.2 |
14 |
16 |
5 |
2 |
2 |
2.5 |
415 |
6 |
20 |
27 |
27 |
48.0 |
13 |
14.3 |
18.3 |
20 |
7 |
2 |
2 |
3.5 |
535 |
11 |
30 |
34 |
29 |
55.0 |
15.5 |
16.3 |
25 |
22 |
7.3 |
2 |
2 |
3.5 |
535 |
18 |
50 |
50 |
29 |
71 |
15.5 |
16.3 |
40 |
22 |
7.3 |
2 |
2 |
3.5 |
995 |
30 |
75 |
65.5 |
48 |
86.5 |
26 |
27 |
23.5 |
37 |
11.5 |
3.5 |
3 |
4.4 |
995 |
3 |
90 |
100 |
98 |
48 |
119 |
26 |
27 |
35 |
37 |
11.5 |
3.5 |
3 |
4.4 |
995 |
160 |
150 |
130 |
48 |
151 |
26 |
27 |
35 |
37 |
11.5 |
3.5 |
3 |
4.4 |
995 |
240 |
RXG24 |
75 |
65.5 |
48 |
93.5 |
26 |
27 |
23.5 |
37 |
11.5 |
3.5 |
M3 |
4.4 |
995 |
90 |
100 |
98 |
48 |
126 |
26 |
27 |
35 |
37 |
11.5 |
3.5 |
M3 |
4.4 |
995 |
160 |
150 |
130 |
48 |
158 |
26 |
27 |
52 |
37 |
11.5 |
3.5 |
M3 |
4.4 |
995 |
240 |
200 |
92 |
73 |
132 |
45 |
46.5 |
35 |
58 |
21 |
5 |
M6 |
5.5 |
3750 |
420 |
250 |
112 |
73 |
152 |
45 |
46.5 |
45 |
58 |
21 |
5 |
M6 |
5.5 |
4765 |
480 |
300 |
130 |
73 |
170 |
45 |
46.5 |
51 |
58 |
21 |
5 |
M6 |
5.5 |
5780 |
580 |
500 |
204 |
73 |
244 |
45 |
46.5 |
87 |
58 |
21 |
5 |
M6 |
5.5 |
8500 |
970 |
■ 主要技术指标
型 号 |
额定功率(W) |
阻值范围(Ω) |
阻值允许偏差(%) |
温度系数 (×10-6/℃) |
绝缘电压(V) |
最高过负荷电压(V) |
带散热板 |
不带散热板 |
RX24 |
5 |
3 |
0.01Ω~1KΩ |
F(±1%)
D(±5%)
|
±100
±50
|
1000 |
1500 |
10 |
8 |
0.01Ω~1.5KΩ |
20 |
12.5 |
0.01Ω~7.5KΩ |
30 |
15 |
0.01Ω~10KΩ |
50 |
20 |
0.01Ω~15KΩ |
RXG24 |
75 |
45 |
0.01Ω~20KΩ |
2000 |
3000 |
100 |
50 |
0.01Ω~24KΩ |
150 |
55 |
0.01Ω~30KΩ |
200 |
55 |
0.01Ω~36KΩ |
250 |
60 |
0.01Ω~39KΩ |
300 |
75 |
0.01Ω~47KΩ |
500 |
200 |
0.01Ω~51KΩ |
■ 主要检验项目、试验方法及性能要求
检验项目 |
性能要求 |
试验方法 |
电阻温度系数 |
≤±100(×10-6/℃)
|
-55℃/+20℃ 20℃/+125℃
|
引出端强度 |
R≤±(1%R+0.05Ω)
|
拉力40N |
耐电压 |
无击穿或飞弧 |
交流电压,其峰值为绝缘电压的1.42倍,1min |
可焊性 |
焊料能自由流动并与引线润湿 |
235±5℃ 2±0.5s
|
耐焊接热 |
ΔR≤±(1%R+0.05Ω)
|
260±5℃ 10±1s
|
过载 |
ΔR≤±(1%R+0.05Ω)
|
5倍额定功率 5s |
温度快速变化 |
ΔR≤±(1%R+0.05Ω)
|
-55℃/+125℃ 5次循环 |
振动 |
ΔR≤±(1%R+0.05Ω)
|
10~500Hz 98m/s2
|
表面温升
|
≤275℃ |
VR |
耐脉冲 |
ΔR≤±(0.2%R+0.05Ω) |
MIL-STD-202 100g,6毫秒10次 |
长期负荷 |
ΔR≤±(1%R+0.05Ω)
|
+25±2℃ VR 1000h |
稳态湿热 |
ΔR≤±(1%R+0.05Ω)
|
+40±2℃ 湿度95~93% 240h |
|
|