■ 外型尺寸
|
型號(hào)
|
250℃下額定功率(W)帶散熱板
|
外形尺寸(mm)
|
|
|
電 阻 體
|
標(biāo)準(zhǔn)散熱板(鋁)
|
|
Amax
|
B |
Lmax |
Hmax |
C |
l |
l1 |
M |
N |
Ф1
|
Ф2
|
表面積cm2 |
厚度(mm) |
| RX24 |
5 |
155 |
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 |
| RX24 |
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 |
■ 主要技術(shù)指標(biāo)
| 型 號(hào) |
額定功率(W) |
阻值范圍(Ω) |
阻值允許偏差(%) |
溫度系數(shù) (×10-6/℃) |
絕緣電壓(V) |
最高過(guò)負(fù)荷電壓(V) |
| 帶散熱板 |
不帶散熱板 |
| 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 |
| RX24 |
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 |
■ 主要檢驗(yàn)項(xiàng)目、試驗(yàn)方法及性能要求
| 檢驗(yàn)項(xiàng)目 |
性能要求 |
試驗(yàn)方法 |
| 電阻溫度系數(shù) |
≤±100(×10-6/℃)
|
-55℃/+20℃ 20℃/+125℃
|
| 引出端強(qiáng)度 |
R≤±(1%R+0.05Ω)
|
拉力40N |
| 耐電壓 |
無(wú)擊穿或飛弧 |
交流電壓，其峰值為絕緣電壓的1.42倍，1min |
| 可焊性 |
焊料能自由流動(dòng)并與引線潤(rùn)濕 |
235±5℃ 2±0.5s
|
| 耐焊接熱 |
ΔR≤±(1%R+0.05Ω)
|
260±5℃ 10±1s
|
| 過(guò)載 |
ΔR≤±(1%R+0.05Ω)
|
5倍額定功率 5s |
| 溫度快速變化 |
ΔR≤±(1%R+0.05Ω)
|
-55℃/+125℃ 5次循環(huán) |
| 振動(dòng) |
ΔR≤±(1%R+0.05Ω)
|
10～500Hz 98m/s2
|
|
表面溫升
|
≤275℃ |
VR |
| 耐脈沖 |
ΔR≤±(0.2%R+0.05Ω) |
MIL-STD-202 100g,6毫秒10次 |
| 長(zhǎng)期負(fù)荷 |
ΔR≤±(1%R+0.05Ω)
|
+25±2℃ VR 1000h |
| 穩(wěn)態(tài)濕熱 |
ΔR≤±(1%R+0.05Ω)
|
+40±2℃ 濕度95～93% 240h |
|