精密电阻 DEEHO MFR
信息编号:3040617 浏览:247次- 供应商
- 东莞市代禾电子有限公司 商铺
- 认证
- 报价
- 请来电询价
- 加工定制
- 是
- 品牌
- DEEHO
- 型号
- MFR
- 所在地
- 东莞市塘厦镇平山188工业区沿场路6号3楼
- 联系电话
- 86 0755 33616521/18620362906
- 手机号
- 15976878116
- 工程师
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- 让卖家联系我
产品详细介绍
1.general instruction
general specifications |
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normal type |
mf-0204 |
mf-0207 |
mf-0410 |
mf-0414 |
mf-0617 |
mf-0718 |
rated power |
1/8w |
1/4w |
1/2w |
1w |
2w |
3w |
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mini type |
mf-0207s |
mf-0410s |
mf-0414s |
mf-0617s |
mf-0718s |
mf-0925s |
rated power |
1/4ws |
1/2ws |
1ws |
2ws |
3ws |
5ws |
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standard dimensions (mm) |
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body length (l) |
3.5±1.0 |
6.5±1.0 |
9.0±1.0 |
11±1.0 |
15±1 |
17±1 |
body diameter (d) |
1.7±1.0 |
2.3±1.0 |
3.2±1.0 |
4.5±1.0 |
5.0±0.5 |
6±0.5 |
lead length (h)±2 |
27±2.0 |
26±2.0 |
25±2.0 |
30±2.0 |
33±2.0 |
33±2.0 |
lead diameter (d) ± 0.05 |
0.40±0.05 |
0.48±0.05 |
0.52±0.05 |
0.72±0.05 |
0.72±0.05 |
0.72±0.05 |
electrical specification |
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din size |
0204 |
0207 |
0410 |
0414 |
0617 |
0718 |
maximum working voltage (v) |
200 |
250 |
350 |
500 |
500 |
500 |
maximum overload voltage (v) |
400 |
500 |
700 |
1000 |
1000 |
1000 |
resistance range (±1%(f)) |
0.1ω-1mω |
0.1ω-1mω |
0.1ω-1mω |
10ω-100k |
10ω-100k |
10ω-100k |
(±0.5%(d)) |
100ω-511kω |
100ω-511kω |
100ω-511kω |
100ω-51kω |
100ω-51kω |
100ω-51kω |
foperating temperature. range:-55℃~ +155℃.
fs=miniature type. for example:0207s the body size of 1/8w but with rated power of 1/4w.
fthe taping dimension other than the standard is also available as per our taping specifications.
fthe resistance range of lower than 10ωand higher than 1mωand / or the tolerance is lower than 0.5% are available on special request.
fcolor of body: normal type is blue.
fpackaging: taped / box and bulk.
fforming: p / m / mb / mk / f / fk1 / fk2 & fkk .
fstandard:jis-c-5202
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2. performance specifications
characteristics
|
standard
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test methods
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1. resistance temperature coefficient (ppm/℃) |
±100 ppm/℃
|
natural resistance change per temperature degree centigrade. (ppm/℃) r1: resistance value at reference temperature. (t1) r2: resistance value at reference temperature.(t2) t1: room temperature t2: t1±100℃ |
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2. dielectric withstanding voltage |
no evidence of flashover, mechanical damage or arcing or, insulation break down. |
resistors shall be subjected to an approximately sinusoidal test potential (as below) 60hz applied between both terminals connected together and a 90° v-block extending beyond the end of the resistor. |
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resistor wattage |
dc volts |
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1/8w (1/4wsi) 1/4w (1/2ws) 1/2w 1w,2w above |
150 350 600 |
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3. solderability |
90% covered min. |
the terminal lead shall be dipped into molten solder s at 3.2 to 4.8mm from the body of resistor.the temp. and time as below: a. 235±5℃for 2±0.5 seconds b. 270±10℃for 2±0.5seconds |
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4. resistance to soldering |
no evidence of mechanical damage δr/r at ±0.5% max |
the terminal of the resistor is dipped into the molten solder of 350±10℃for 3±0.5 seconds. then put the resistor in the room temperature. for min.3 hours.
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5. humidity load life |
±1% max/1000hours |
resistance change after 1000 hours ( 1.5 hours on 0.5 hours off)at rated continuous working voltage in a humidity chamber controlled at 40±2℃and 90~95% relative humidity . |
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6. load life |
±1% max/1000hours |
permanent resistance change after 1000 hours operating at rated continuous working voltage with a duly cycle of 1.5 hours on 0.5 hours off at 70 ± 2℃ambient .
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7. temperature cycling |
±1% max with no evidence of mechanical damage |
resistance change after continuous five cycles for duty cycle as specified below.
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step |
temperature |
time |
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1 |
-30℃ |
30 minutes |
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2 |
+25℃ |
10~15 minutes |
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3 |
+85℃ |
30 minutes |
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4 |
+25℃ |
10~15 minutes |
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characteristics
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standard
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test methods |
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8. short time overload |
δr/r at±0.5% max. with no evidence of arcing burning, or charring |
permanent resistance change after the application of a potential of 2.5 times rated continuous working voltage for 5 seconds at room temperature.
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9. terminal strength |
no evidence of mechanical damage or loosening terminals |
direct load resistance to 2.5kg direct load 30±5 seconds twist test, for axial leads unit only. terminal lead shall be bent through at a right angle at a point of 6.35mm from the body edge of resistor and shall be rotated through at a right angle about the original axis of the bent terminal in alternating direction for a total 3 rotations.
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本产品的加工定制是是,品牌是DEEHO,型号是MFR,种类是精密金属膜电阻器,性能是超高频,材料是金属膜,制作工艺是膜式非线绕型,外形是圆柱形,标称阻值是0.1R-1M,允许偏差是±1%,温度系数是50PPM,额定功率是1/8W-5W(W),功率特性是中功率,频率特性是高频,产品性质是热销,营销方式是
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加工定制:是