Anti-Surge Wire Wound Fast-Fuse Resistors

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Anti-Surge Wire Wound Fast-Fuse Resistors

Comprehensive Surge-Protected Wound Fast-Fuse Resistor. The comprehensive surge-protected wound fast-fuse resistor has a rated power of 1W to 3W and a resistance range of 1 ohm to 470 ohms. It is suitable for use as a fast-fuse device in high-power applications. Meanwhile, the enhanced welding points make it reliably resistant to surges. In other words, this product is an advanced resistor that combines surge protection and fast-fuse functionality. It features a flame-retardant multilayer coating equivalent to UL 94 V-0. The thermal fuse prevents overheating in electronic products and meets the fusing tests specified in UL 1412. Our products comply with RoHS/REACH standards. They are safe for reflow soldering. A low temperature coefficient of resistance (T.C.R.) ensures stable power output.

Type	Body Length (L, mm)	Body Diameter (D, mm)	Lead Wire Length (H, mm)	Lead Wire Diameter (d, mm)
1W	11.0 ± 1.0	4.5 ± 0.5	28 ± 3.0	0.7 ± 0.03
2W	13.5 ± 1.0	5.0 ± 0.5	30 ± 3.0	0.8 ± 0.03
3W	15.5 ± 1.0	5.5 ± 0.5	30 ± 3.0	0.8 ± 0.03

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Power Rating (at 70°C)	Maximum Permissible Surge Voltage	Minimum Resistance	Maximum Resistance	Resistance Tolerance	Available Resistance Values
1W	9 kV	1 Ω	470 Ω	±5%	E-24
2W	10 kV	1 Ω	470 Ω	±5%	E-24
3W	12 kV	1 Ω	470 Ω	±5%	E-24

Characteristics	Limits
Temperature Coefficient, PPM / °C*	±100, ±200
Operating Temperature Range, °C	-55 ~ +200
Insulation Resistance, MΩ	10⁴
Fusing Characteristics (Preliminary)	constant voltage thermal fuse Interrupts max. 15 seconds at 40 times rated power Interrupts max. 5 minutes at 3.5 times rated amp at 265°C (special request)

Not applicable to all resistance values. Please check with us regarding the PPM of specific resistance value(s).

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In addition to Anti-Surge Wire Wound Fast-Fuse Resistors, we also focus on the following resistors:

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Resistor Supplies - Jepsun Tech Corporation

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