RESISTORS
CAPACITORS
LED
 
 
 

-- RESISTORS
Name:FUSIBLE METAL FILM RESISTORS
Type:

Description:

There are some similarities between Resistor and Fuses in material and structure.Fusible Resistors contain both func-tions,as being resistor in normal condition and changed into fuse whiles abnormal current comes in to protect machine and equipment. Since two functions performed by one resis-tor, the cost therefore saved. Fusible Resistor series are produced with precision technique, enabling precise fusing time and stabilized, aiming to reach best quality resistors.

 


  • It is suitably used in transistor protection circuit.

  • Small in size with competitive price.

  • Noncombustible insulating coat, "Freon" Proof and resistant to high
    temperature.

  • Low temperature coefficient.

  • Uniform in fusing time.

 

TYPE DIMENSIONS (mm)
FR L D H d
1/4W 1/2WS 6.3±0.5 2.3±0.3 27±2.0 0.56±0.05
1/2W 1WS 9.0±0.5 3.2±0.5 26±2.0 0.60±0.05
1W 2WS 12±1.0 4.5±0.5 35±3.0 0.80±0.05
2W 3WS 16±1.0 5.0±0.5 35±3.0 0.80±0.05

 
TYPE MAXIMUM
WORKING
VOLTAGE 		MAXIMUM
WORKING
VOLTAGE 		RESISTANCE
RANGE
FR ±5%(F)
1/4W -- 300V 500V 1-560
1/2W 1/2WS 350V 700V 1-560
1W 1WS 500V 1000V 1-560
2W 2WS 500V 1000V 1-560

 
TEST ITEMS TEST CONDITION TEST METHOD
JIS C 5202
Temp. Coefficient (ppm/°C) 4 R 7以下 1000ppm/°C
5.2 室溫 + 100 °C
5 R 1以下

350ppm/°C
Short Time Overload ±1% +0.05
5.5 條件A
Insulation Resistance 10000M以上 DC100v
5.5 條件A
Dielectric Withstanding Voltage
±0.5% +0.05
 
定格電力
印加電壓 DC(V)
最高電壓
5.7 下表最高定格電壓
1/4W 1/2W 1W 2W
250 300 350 800
Pulse Overload ±2.5% 5.8定格x3倍 100R以上
依最高印加電壓
Solder Pot 覆蓋95%以上
6.5 230°C 3sec
Temp. Cycling ±(1% + 0.05)
7.4 -405°C 5cycle
Resistance to Sovents 外觀無損傷色環可判讀
6.9.2 (水 I.P.A)  
Moisture Resistance ±(5%)
7.9 500hr 40°C 90-95%
Load Life ±(5%)
7.10 1000hr 70°C
Hot-wire 塗膜不可發火
UL -1412 10頂
Overload Non-Combustibility 綿布不可發火
UL -1412 14頂
Long Time
± 0.5% +0.05
365日 ±10 ±25°C ±10°C
Effect of Soldering ±(1% + 0.05)
6.5 260°C 10sec
FEATURES
  1. 依下表倍率乘瓦特(W)乘阻值開根號為熔斷電壓(DC)

    2.
  2. 殘留阻值為初期值100倍以上

    3.
  3. 直流電源試具應為電流及電壓自動調整型
    4.

熔斷倍率 X40 X30 X25 X15 X12 熔斷時間
FR
FR-25 0.1-0.18 0.2-0.3 0.42-0.91 1-47
2K4-10K 		51-2K2 30sec
FR-50     0.1-0.43 0.47-2
1K1-10K 		22-1K 30sec
FR-100   0.1-0.18 0.2-0.43 0.47-2
1K1-10K 		22-1K 30sec
FR-200       1-3K   30sec

FUSING CHARACTERISTICS
 

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  CHUAN HAO ELECTRONIC CO., LTD
NO 236 Tianwei St., Shulin Dist., New Taipei City 238, Taiwan (R.O.C.)
Tel:886-2-2668-8806 Fax:886-2-2680-3672
Website:http://www.chuan-hao.com.tw/
E-mail Box: service@chuan-hao.com.tw
  YStek Technology Co.,Ltd.