Fusible Resistor

Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
Fusible Resistor
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Fusible resistor is characterized by repeatable fuse, making it applicable to high temperature and high power conditions.

The followings are the fusible resistors Southern Group produced for customers. If you have any demands, then you are welcomed to contact us for customization.

Electric Resistor for Water Heater

Southern Group once produced an electric resistor for water heater for defrosting. Based on clients’ actual conditions, this electric resistor is available in resistor numbers, like 3, 5, 8, 10, etc.

Structure Examples
Parameters
  • Rated power of single resistor is 16W.
  • Resistance accuracy: ±5%(J) for one resistor and ±7% for complete sets of resistors.
  • Temperature coefficient: α≤±250PPM/℃
  • Operating temperature: -20℃~+40℃

The following two types of fusible resistor produced by Southern Group are suited for conditions where has low requirements on power and the overload and surge handling are less strict.

WF Fusible Resistor
Dimensions
Derating Curve
Properties
Item Test Method Requirement
Resistance Room temperature; 0.2 class resistance tester Within the required tolerance
Dielectric Strength 1500V; 1minute No breakdown or flashover
Soldering Ability Temperature: 235±5℃,2±0.5s, Immersion height: 2-0.5mm No visible damage and new solder coverage should be above 95%. △R≤±(1%R+0.05)
Overload 2.5x rated voltage: 5s △R≤±(1%R+0.05)
Load Fuse Features 9 × rated load 16× rated load 25× rated load Fusible time< 90s Fusible time< 45s Fusible time< 40s
No-Load Fuse Features Nominal fusible temperature: 20±2℃ Fusible time:< 15s
Intermittent Overload 2.5x rated AV, 1s; 1s-on and 25s-off: 1000times △R≤±(2%R+0.05)
WH Fusible Resistor
Derating Curve
Parameters

1. rated power: 10W
2. rated resistance and tolerance: 5.3Ω±10%
3. rated current: 10A
4. fusible temperature: 240℃+0/-10℃
5. operating temperature range: 0℃-+200℃


SMD Fusible Wire Wound Resistors

SMD fusible wire wound resistors is produced by winding resistance wire on the ceramic core and then conducting insulation encapsulation. It is intended for surface mounting.

Parameters
Model Dimension ( mm )
D L D1 Power Resistance Range
0207 2.2 ±0.5 5.9 ± 0.5 2.1 ±0.3 0.5W 0.1~100Ω
0309 3.5 ±0.5 9 ±0.5 3.2 ±0.3 1W 0.1~160Ω

RXF Fusible Wire Winding Resistor

Main performance
Power: 1W
Resistance range: 0.1Ω-160Ω
Marking method: color circle

RXF fusible wire winding resistor is manufactured by winding resistance wire on the ceramic core and then conducting insulation encapsulation. It plays a role of fixed resistor under normal operation. Otherwise it acts as a circuit protective element and it fuses within the require time in case of overload.


Our fusible resistor has the characters of a fuse and resistor. Shown above are five types of our custom fusible resistors. As we have over 30 years of experience in making passive electronic components, we have the utmost capabilities to make quality resistors, inductors and transformers with competitive prices. Shown below are the other types of resistors we provide.

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