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Metal Plate Non-inductive Cement Resistor MPR
Dimensions and voltage Performance of Metal Plate Non-inductive Cement Resistor MPR :
POWER RATING | DIMENSIONS(MM) | RESISTANCE RANGE(Q) | ||||||
A | B | C±1 | H+2 | d + 0.1 | P±1.0 | E12.J(±5%) | E12.K(±10%) | |
2W | 8.5±1.0 | 14.0+1.0 | 5.0 | 13.0 | 0.8 | 9.0 | 0.01-0.68 | 0.01-0.68 |
3W | 13.0±1.0 | |||||||
5W | 18.0±1.0 | 0.01-1.0 | 0.01-1.0 | |||||
10W | 17+1.5 | 26.0±1.5 | 20 |
| 0.05-1.0 | |||
2W+3W | 8.5±1.5 | 10 | 0.22-0.56 | 0.03-0.56 | ||||
3W+3W | 13.0±1.5 | |||||||
5W+5W | 17±1.5 | |||||||
7W+7W | 20±1.5 | |||||||
Characteristics of Metal Plate Non-inductive Cement Resistor MPR:
Characteristics | SPECIFICATIONS | TEST METHODS JIS 5202 |
Temperature Coefficient | ± 350PPM/ °C | 5.2 Condition B |
Short Time Overload | △ R≤ ±(2%R0+0.05Ω) | 1W-3W5x rated power, 5 seconds 5W-20WRated power x 10 times 5 seconds |
Dielectric Withstanding Voltage | 500V Dc60秒 | 5.7 |
Load Life In Humidity | △ R≤±(3%R°+O.O5Ω) | 7.9 |
Load Life | △ R≤±(3%R°+0.05Ω) | 7.10 |
Thermal Shock | △ R≤±(2%R°+O.O5Ω) | JIS 5026 6.7 |
Performance Srecihcations of Metal Plate Non-inductive Cement Resistor MPR:
Characteristics | Specifications | Test Methods | ||
DC Resistance JIS-C-5202 5.1 | J±5% K±10% | AT 25°C | ||
Temperature Coefficient JIS-C-5202 5.2 | ±350PPM/°C |
1.Resistance value at room temperature(T1 )
2.Resistance value at room temperature+100°C (T2) | ||
Dielectric Withstanding Voltage JIS-C-5202 5.7 | No evidence of flashover mechanical damage, arcing or insulation breakdown. | Resistors shall be clanped in the trough of a 900 metallic v-block and shall be test at specified in the above list for 60 seconds. | ||
Insulation Resistance JIS-C-5202 5.6 | 1000MΩ MIN | Withstanding test and shall be measured dc 500v. Resistor shall be prepared same method of dielectric | ||
Short Time Overload | △ R≤±(2%Ro+0.05Ω) | 1.1w-3w power rated x 5 times, 5sec 2.5w-20w power rated x 10 times, 5sec | ||
Load Life In Humidity JIS-C-5202 7.9 | △ R≤±(3%Ro+0.05Ω) | Resistance change after 1000 hours (1.5 hrs on, 0.5 hrs off ) at rcwv in a humidity chamber controlled at 40°C ± 2°C and 90-95% relative humidity. | ||
Load Life JIS-C-5202 7.10 | △ R≤±(3%Ro+0 05Ω) | Permanent res stance change after 1000 hours operating at rcwv, wigh duty cycle of 1.5 hours on, 0.5 hours off at room temperature. | ||
Thermal Shock JIS-C-5202 7.4 | △ R≤±(2%Ro+0 05Ω) | The temperature set in the following table is 5 consecutive times. | ||
Step | Temperature | Time(min) | ||
1 | -55°C | 30sec | ||
2 | 25°C | 5sec | ||
3 | 85°C | 30sec | ||
4 | 25°C | 5sec | ||
