POWER CHIP RESISTOR / 模造電阻器
(MR Series)



 

 

FEATURES / 特性 :

High stability film or metal plate resistance elements
高 穩定性皮膜或金屬板抵抗元素
Low inductive ( <50nH ). Test frequency 100KHz
低感值 ( <50nH )、測試頻率 100KHz
Available in 20W, 30W, 35W, 50W
可利用在 20W、30W、35W、50W
       CHARACTERISTICS：

ITEM   項目

REMARKS   備註

Load life under high temperature 高溫負荷壽命

MIL-STD-202 Method 108, Rated voltage 70℃ for 1,000 hours

Humidity resistance 高溫高濕

MIL-STD-202 Method 106, Test Temp. (65℃ at 90%～95%) 240 hours 

Vibration 振動試驗

 MIL-STD-202 Method 204, Condition D

Thermal shock 溫度循環

MIL-STD-202 Method 107, Test Condition F (-55℃～+85℃) 5 cycles

Insulation resistance 絕緣阻抗

MIL-STD-202 Method 302   (≧1000MΩ at 500V)

Resistance to soldering heat  焊錫耐熱

MIL-STD-202 Method 210, Test Condition B (10s at 260℃) 

Solderability 可焊性

MIL-STD-202 Method 208 (5s at 245℃) >95%
Dielectric withstanding 耐電壓 MIL-STD-202 Method 301, Test DC 2,000V 60sec.
Temp.coeff. of resistance 溫度係數 MIL-STD-202 Room temp.+100℃

Derating curve 額定功率下降曲線

Dimensions (mm) 尺寸
Dimensions (mm) 尺寸

Rated Power

A

±0.2

B

±0.2

C

±0.2

D Ø

±0.1

E

±1.0

F

±0.5

G

±0.2

H

 ±0.2

J

 ±0.1

K

±0.1

L

±0.1

M

±0.1

N

±0.1

P

±0.1
20W 10.1 15.0 4.5 3.6 15.5 4.0 3.0 2.75 0.5 0.75 1.5 16.0 1.3 5.08
30W 10.1 15.0 4.5 3.6 15.5 4.0 3.0 2.75 0.5 0.75 1.5 16.0 1.3 5.08
35W 10.1 15.0 4.5 3.6 15.5 4.0 3.0 2.75 0.5 0.75 1.5 16.0 1.3 5.08
50W 10.1 15.0 4.5 3.6 15.5 4.0 3.0 2.75 0.5 0.75 1.5 16.0 1.3 5.08


Rating 額定

型名

Power Rating 1
Voltage Rating 4 
Thermal Resistance
Resistance Range
Tolerance
Temperature Coefficient
(TCR)
Heat sink 2
Free Air 3
MR-20

  20W

2.00W

500V 5.9℃/W 0.01Ω～0.09Ω ±5% ±200ppm/℃
0.1Ω～51KΩ ±1%、±5% ±150ppm/℃
MR-30 30W 2.25W 500V 4.2℃/W 0.01Ω～0.09Ω ±5% ±200ppm/℃
0.1Ω～51KΩ ±1%、±5% ±150ppm/℃
MR-35 35W

2.25W

500V 3.3℃/W 0.01Ω～0.09Ω ±5% ±200ppm/℃
0.1Ω～51KΩ ±1%、±5% ±150ppm/℃
MR-50

50W 2.50W

500V

 2.3℃/W

0.01Ω～0.09Ω ±5% ±200ppm/℃
0.1Ω～51KΩ ±1%、±5% ±150ppm/℃

※ Low TCR Request -- please contact us.

 


 

 
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TEL: +886-2-2698-9988 (Rep.) FAX: +886-2-2698-9966 E-MAIL：sherry.abcomp@msa.hinet.net
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