ROP Cement Resistors Cylindrical Type Features: 1. Standard taping package can be for automatic insertion and forming. 2. Fully automated process and strict quality control system result uniform quality and consistent performance in reliability. 3. Small and lightweight body style save the PWB space considerably. 4. High Dielectric Withstanding Voltage up to 1KV.
ROP Cement Resistors Cylindrical Type
Products | ROP Cement Resistors Cylindrical Type |
Features | 1. Standard taping package can be for automatic insertion and forming. 2. Fully automated process and strict quality control system result uniform quality and consistent performance in reliability. 3. Small and lightweight body style save the PWB space considerably. 4. High Dielectric Withstanding Voltage up to 1KV. 5. Flameproof construction in a ceramic tube, resistant to humidity and insulation. |
Electrical And Mechanical Performance of ROP Cement Resistors Cylindrical Type:
Characteristics | Standards | Test Methods |
Resistance Tolerance | ±5%(J) | - |
Resistance Temp. Coeff. | ±300 ppm/°C | -55°C~155°C |
Power Rating Load | Surface temp. 275°C Max.ΔR/R W±1% | Rated voltage for 30 minutes |
Short Time Overload | ±2% | 10times(power film:5 times) of rated wattage for 5 seconds.
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Dielectric Withstanding Voltage | No evidence of mechanical damage or insulation breakdown. | AC 1000V for1minutes |
Insulation Resistance | 1,000MQ | DC 500V megger |
Terminal Strength | No evidence of mechanical damage. | 1 kg |
Solder-ability | Minimum95%coverage | 235±5°C for 2 seconds |
Resistance to Soldering Heat | No evidence of mechanical damage.△R/RW±1% | 270±5°C for 10 ±1 seconds 350 ±10*0 for 3.5 ±0.5 seconds |
Environmental Characteristics of ROP Cement Resistors Cylindrical Type:
Characteristics | Standards | Test Methods |
Temp. Cycle | △R/RW±1% | -55°C( 30 mln.) Room Temp.( 3 min.) +155*0 ( 30 mln.) Room Temp.( 3 min.)/( 5 cycles) |
Load Life | △R/R ±5% | Rated power load 90 minutes ON 30 minutes OFF 70°C 1000 hours |
Moisture-proof Load Life | △R/RW±5% | Rated power load 90 minutes ON 30 minutes OFF 40°C95%RH 1000 hours |
Nonflammability | not flamed | 16 times of rated wattage for 5 min. |
Dimensions of ROP Cement Resistors Cylindrical Type:
Rated Wattage | D±1 | L±1 | XMax. | H±3 | d±0.1 | Resistance(Q) | Max. Working Voltage | |
Wire Wound | Power Film | |||||||
1W | 4.5 | 6.5 | 9 | 28 | 0.65 | 0.1-47 | 48-1 OK | 150V |
2W | 5.0 | 8.5 | 10.5 | 28 | 0.65 | 0.1-100 | 101-1 OK | 150V |
3W | 6.5 | 11 | 14 | 28 | 0.8 | 0.1-150 | 151~33K | 350V |
5W | 7 | 16 | 19 | 28 | 0.8 | 0.1-150 | 151-50K | 350V |
Derating Curve of ROP Cement Resistors Cylindrical Type:
For resistors operated in ambient temperatures above 70,power rating must be derated in accordance with the curve below.
Surface Temperature Rise of ROP Cement Resistors Cylindrical Type:
