此系列电阻器执行美国军用标准MIL-STD-202和
日本国家级标准JIS-C 5201-1. 所有周期性检验项目的要
求及方法均采用上述两种标准的有关规定。
技术特点： 降功率曲线：
功率最高可达3 Watts，温度系数可低至±50 PPM/°C
阻值范围：0.5到20 m ohm
宽的尺寸范围：1206 / 2010 /2512
存储温度: 25±3°C; 湿度： < 80%RH
尺寸(mm)：
|
Type
|
Resistance(mΩ)
|
L
|
W
|
T
|
D
|
Weight(g/Kpcs)
|
|
MR06 T
|
1.0-10
|
3.20±0.254
|
1.60±0.104
|
0.60±0.20
|
0.980±0.380
|
22.6
|
|
MR10 T
|
1.0 - 10
|
5.08±0.254
|
2.54±0.15
|
0.60±0.20
|
1.665±0.625
|
42.3
|
|
MR12_T_0M50G
|
0.50
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
2.675±0.254
|
59.13
|
|
MR12_T_0M75G
|
0.75
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
2.475±0.254
|
59.13
|
|
MR12_T_____G
|
1.0 - 1.5
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
1.425±0.254
|
59.13
|
|
MR12_T_____G
|
2.0 - 3.0
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
1.175±0.254
|
59.13
|
|
MR12_T_R004G
|
4.00
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
2.175±0.254
|
59.13
|
|
MR12_T_____G
|
5.0 - 6.0
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
1.925±0.254
|
59.13
|
|
MR12_T_R007G
|
7.00
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
1.425±0.254
|
59.13
|
|
MR12_T_____G
|
8.0 - 20
|
6.35±0.254
|
3.00±0.20
|
0.60±0.20
|
1.175±0.254
|
59.13
|
|
MR12_T_0M50
|
0.50
|
6.35±0.254
|
3.18±0.254
|
1.40±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_0M75
|
0.75
|
6.35±0.254
|
3.18±0.254
|
1.00±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R001
|
1.00
|
6.35±0.254
|
3.18±0.254
|
0.80±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_1M50
|
1.50
|
6.35±0.254
|
3.18±0.254
|
0.65±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R002
|
2.00
|
6.35±0.254
|
3.18±0.254
|
0.50±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_2M50
|
2.50
|
6.35±0.254
|
3.18±0.254
|
1.00±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R003
|
3.00
|
6.35±0.254
|
3.18±0.254
|
0.70±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R004
|
4.00
|
6.35±0.254
|
3.18±0.254
|
0.60±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R005
|
5.00
|
6.35±0.254
|
3.18±0.254
|
0.50±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R006
|
6.00
|
6.35±0.254
|
3.18±0.254
|
0.50±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_6M50
|
6.50
|
6.35±0.254
|
3.18±0.254
|
0.45±0.20
|
1.425±0.377
|
61.03
|
|
MR12_T_R007
|
7.00
|
6.35±0.254
|
3.18±0.254
|
0.45±0.20
|
1.425±0.377
|
61.03
|
订货示例:
MR 12 J T E S R002 G
型号 尺寸 精度 包装 温度系数(PPM/℃) 额定功率 阻值 标字
06:1206 F:±1% T: 编带 D:±50 :Standard R002:0.002Ω : Black Coating
10:2010 H:±3% E: ±100 A : 1.5W R020: 0.02Ω G: Green Coating
12:2512 J: ±5% K: ±150 B : 2.5W 0M50: 0.0005Ω **2010/1206
W : ±75 R : 3W 1M50: 0.0015Ω No coating / marking
S : 2W
标准电特性:
|
项目
物料号
|
额定功率（80°C）
|
工作温度范围
|
阻值 (mΩ) 1% 3% 5%
|
温度系数(PPM/°C)
|
|
|
MR06_TD____
|
1W
|
-55°C ~ +170°C
|
1.0 - 10.0
|
±50
|
|
|
MR12_TD____
|
1W
|
0.5 - 2.0
|
±50
|
||
|
MR12_TK____
|
1W
|
2.5 - 3.5
|
±150
|
||
|
MR12_TE____
|
1W
|
4.0 - 5.5
|
±100
|
||
|
MR12_TW____
|
1W
|
6.0 - 7.0
|
±75
|
||
|
MR12_TD____G
|
1W
|
11.0 - 20.0
|
±50
|
||
高功率电特性：
|
项目
物料号
|
额定功率（80°C）
|
工作温度范围
|
阻值 (mΩ) 1% 3% 5%
|
温度系数(PPM/°C)
|
|
|
MR10_TDA____
|
1.5W
|
-55°C ~ +170°C
|
1.0 - 10.0
|
±50
|
|
|
MR12_TDS____
|
2W
|
0.5 - 2.0
|
±50
|
||
|
MR12_TDS____G
|
2W
|
3.5
|
±50
|
||
|
MR12_TDS____G
|
2W
|
6.5 - 10.0
|
±50
|
||
|
MR12_TDB____G
|
2.5W
|
4.0 - 6.0
|
±50
|
||
|
MR12_TDR____G
|
3W
|
1.0 - 3.0
|
±50
|
||
|
MR12_TER____G
|
3W
|
0.5 - 0.75
|
±100
|
||
环境特性：
|
项目
|
要求 Black coating Green coating
|
测试方法
|
|
|
温度系数
|
按要求
|
+25/-55/+25/+125/+25°C
|
|
|
短时间过载
|
±0.5%
|
±1%
|
5倍额定功率， 5 秒
|
|
寿命
|
±1%
|
±1%
|
70±2°C, 最大工作电压， 1000 小时，1.5 小时“开” ，0.5 小时 “关”
|
|
高温暴露
|
±1%
|
±1%
|
+170°C，1000 小时
|
|
可靠性
|
95% min. coverage
|
245±5°C ，3秒
|
|
|
耐焊接热
|
±0.5%
|
±1%
|
260±5°C，10秒
|
|
热冲击
|
±0.5%
|
±1%
|
-55°C ~ 150°C, 100循环
|
