² 涂覆封装，色环标志，适用于有高精度要求
的表面贴装（SMD）电子线路。
² 高稳定/高可靠性
² 小体积，低成本，无引线圆柱状外形。
² 高精度：标称阻值偏差范围为±0.05%～±1.0%
² 低温度系数：±5PPM/℃～±50PPM/℃（测试温度为25℃～85℃）
² 工作温度范围：-65℃～+155℃
尺寸（mm）|
型号
|
MEF0204
|
MEF0207
|
MEF0208
|
|
L±0.3
|
3.50
|
5.60
|
8.50
|
|
D±0.3
|
1.35
|
2.15
|
3.00
|
|
C±0.1
|
1.00
|
1.40
|
1.90
|
MEF系列技术参数|
|
70℃额定功率
|
额定电压（V）
|
最大工作电压
|
标称阻值偏差
|
阻值范围
|
温度系数
|
||
|
MEF0204
|
1/4W
|
 |
200V
|
C/D/F
B/C/D/F
A5/B/C/D/F
B/C/D/F
|
1Ω~5Ω
5Ω~50Ω
50Ω~1MΩ
1MΩ~2MΩ
|
C6/C5/C3/C2
C7/ C6/C5/C3/C2
C7/ C6/C5/C3/C2
C6/C5/C3/C2
|
||
|
MEF0207
|
1/2W
|
250V
|
C/D/F
B/C/D/F
A5/B/C/D/F
B/C/D/F
D/F
|
1Ω~5Ω
5Ω~40Ω
40Ω~1MΩ
1MΩ~3MΩ
3MΩ~10MΩ
|
C6/C5/C3/C2
C7/ C6/C5/C3/C2
C7/ C6/C5/C3/C2
C6/C5/C3/C2
C3/C2
|
|||
|
MEF0208
|
3/4W
|
300V
|
C/D/F
C/D/F
C/D/F
D/F
|
1Ω~10Ω
10Ω~500K
500K~900K
900K~5MΩ
|
/
C3/C2C1
C2/C1
C2/C1
|
注：1、标称阻值、标称阻值偏差和温度系数超出上述指标，可协商供货。
2、表中温度系数测试温度范围为25℃～85℃，超出此测试温度范围要求的可协商供货。
|
标称阻值偏差符号代码
|
F
|
D
|
C
|
B
|
A5
|
A4
|
A3
|
A2
|
T
|
|
±1%
|
±0.5%
|
±0.25%
|
±0.1%
|
±0.05%
|
±0.04%
|
±0.03%
|
±0.02%
|
±0.01%
|
|
|
温度系数
符号代码
|
C2
|
C3
|
C4
|
C5
|
C6
|
C7
|
C9
|
C10
|
|
|
±50ppm/℃
|
±25ppm/℃
|
±20ppm/℃
|
±15ppm/℃
|
±10ppm/℃
|
±5ppm/℃
|
±3ppm/℃
|
±2ppm/℃
|
|
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