RX27 type cement resistors are dielectric strength, weldability strong, various specifications, widely use.
Products | Cement type resistors (LW) | ||||||
Specifications | |||||||
Part NO. RX | Dimensions | Resistance range | |||||
W± 1 | H± 1 | L± 1.5 | C± 3 | D± 0.05 | KN | MO | |
2W | 7 | 7 | 18 | 30 | 0.8 | 0.1~270 | 271~33K |
3W | 8 | 8 | 22 | 35 | 0.8 | 0.1~1K | 1K1~47K |
5W | 10 | 9 | 22 | 35 | 0.8 | 0.1~1K | 1K1~68K |
7W | 10 | 9 | 35 | 35 | 0.8 | 0.1~1K | 1K1~68K |
10W | 10 | 9 | 48 | 33 | 0.8 | 0.1~1K | 1K1~50K |
15W | 12.5 | 11.5 | 48 | 33 | 0.8 | 0.1~1K | 1K1~150K |
20W~25W | 14 | 13.5 | 60 | 33 | 0.8 | 0.1~1K | 1K1~150K |
Rated Power | 2W | 3W | 5W | 7W | 10W | 15W | 20W~25W |
Max. working voltage | 150V | 350V | 350V | 500V | 750V | 1000V | 100V |
Dielectric withstanding voltage | 1000V (AC) | 1000V (AC) | 1000V (AC) | 1000V (AC) | 1000V (AC) | 1000V (AC) | 1000V (AC) |
Resistance tolerance | J± 5% | J± 5% | J± 5% | J± 5% | J± 5% | J± 5% | J± 5% |
Cement Type Resistor (wire wound) | |||||||
Characteristics | Specifications | Test Method | |||||
DC Resistance JIS-C-5202 5.1 | J ± 5% | AT 25° C | |||||
Dielectric withstanding voltage JIS-C-5202 5.7 | No evidence of flashover mechanical amage, arcing or insulation breakdown. | Resistance shall be clamped with a conductive material which conforms to resistors surface so that 90 o of the outer periphery is contacted a potential of 1000V AC shall be applied for 60 seconds. | |||||
Insulation Resistance JIS-C-5202 5.6 | 1000MΩ MIN | Withstanding test and shall be measured at DC 500V. Resistor shall be prepared AC same method of dielectric. | |||||
Thermal Shock | Δ R≤ ± (2%R0+0.1Ω ) | After application of rated power for 30 minutes, 30 minutes exposure to -30± 5° C ambient temperature. | |||||
Humidity JIS-C-5202 7.5 | Δ R≤ ± (2%R0+0.1Ω ) | Temperature resistance change after 1000 hours exposure in a humidity test chamber controlled at 40± 2° C and 90~95% relative humidity. | |||||
Cement Type Resistor (metal oxide film) | |||||||
Short time overload | Δ R≤ ± (2%R0+0.05Ω ) | Temperature resistance change after the application of a potential of 2.5 times RCVW for 5 seconds. | |||||
Load Life JIS-C-5202 7.10 | Δ R≤ ± (5%R0+0.1Ω ) | Permanent resistance change after 1000 hours operating at RCWV, with duty cycle of 1.5 hours on and 0.5 hours off at 25° C± 2° C. | |||||
Load Life in Humidity JIS-C-5202 7.9 | Δ R≤ ± (5%R0+0.1Ω ) | Temperature resistance change after 1000 hours(1.5hours on and 0.5 hours off) at RCVW in a humidity chamber controlled at 40± 2° C and 90~95% relative humidity. | |||||
Solderability JIS-C-5202 6.5 | 95% coverage MIN | Test temperature of solder: 230± 5° C Dwell time in solder: 3± 0.5 SEC | |||||
Nonflammability | Nonflammable | Load 5 min according to 5times, 10 times, 16 times rated power and A. C. respectively. |
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(1).A long history (27years) on producing resistors and inductors!
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Please contact me for more details if you have reference inquiries, different appreance is also customied designed by our engineers!
Ms.Coco Wen
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Tel:86-519-83280538-8017 Fax:86-519-83295710
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