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RMC Thick Film Chip Resistors
RMC Thick Film Chip Resistors Features: 1. Miniature size can compact P.C. Board, 2. 8mm tape carrier packaging available for automatic surface mounting. 3. Excellent mechanical strength and electrical stability. 4. Reducing assembly costs.
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Product Description
RMC Thick Film Chip Resistors
Products | RMC Thick Film Chip Resistors |
Features | 1. Miniature size can compact P.C. Board, 2. 8mm tape carrier packaging available for automatic surface mounting. 3. Excellent mechanical strength and electrical stability. 4. Reducing assembly costs. |
Electrical And Mechanical Performance of RMC Thick Film Chip Resistors:
Characteristics | Standards | Test Methods |
Resistance Tolerance | ±5%(J)or ±1%(F) | - |
Resistance Temp. Coeff. | <10Ω: ±400ppm/°C 10Ω~1MΩ :±100ppm/°C >1MΩ:± 200ppm/°C | -55°C ~155°C |
Power Rating Load | Surface temp.155°C Max.ΔR/R≤±1% | Rated voltage for 30 minutes |
Short Time Overioad | ±1% | 2.5 times of rated wattage for 5 seconds.
|
Dielectric Withstanding Voltage | No evidence of mechanical damage or insulation breakdown.
| Max. Overload Voltage for 1 min.
|
Insulation Resistance | 10,00MΩ | DC100V megger |
Solder-ability | Minimum95%coverage | 245 ± 5°C for 2 seconds |
Resistance to Soldering Heat | No evidence of mechanical damage.ΔR/R≤±1% | 270±5°Cfor 10 ±1 seconds |
Environmental Characteristics of RMC Thick Film Chip Resistors:
Characteristics | Standards | Test Methods |
Temp. Cycle | △R/R≤±0.5% | -55°C( 30 min.) —►Room Temp.( 3 min.) —► +155°C( 30 min.) —► Room Tenp.( 3 min.) / ( 5 cycles) |
Load Life | △R/R≤±1% | Rated power load 90 minutes ON 30 minutes OFF 70°C 1000 hours |
Moisture-proof Load Life | △R/R≤±1% | Rated power load 90 minutes ON 30 minutes OFF 40°C95%RH 500 hours |
Dimensions of RMC Thick Film Chip Resistors:
CODE | Rated Wattage | Dimension(mm) | Max. Working Voltage | Resistance Range(Ω) | ||||
L±0.2 | W±0.2 | C±0.2 | d±0«2 | t±0.1 | ||||
0402(1005) | 1/16W | 1.0+0.1 | 0.5+0.05 | 0.2+0.1 | 0.25+0.1 | 0.35+0.05 | 50V | 1-10M |
0603(1608) | 1/10W | 1.6 | 0.8 | 0.3 | 0.3 | 0.45 | 50V | 1-10M |
0805(2012) | 1/8W | 2.0 | 1.25 | 0.4 | 0.4 | 0.5 | 150V | 1-10M |
1206(3216) | 1/4W | 3.2 | 1.6 | 0.5 | 0.5 | 0.6 | 200V | 1-10M |
2010(5025) | 1/2W | 5.0 | 2.5 | 0.6 | 0.5 | 0.6 | 200V | 1-10M |
2512(6332) | 1W | 6.3 | 3.2 | 0.6 | 0.5 | 0.6 | 200V | 1-10M |
Derating Curve of RMC Thick Film Chip Resistors :
For resistors operated in ambient temperatures above 70°C , power rating must be derated in accordance with the curve below.
Surface Temperature Rise of RMC Thick Film Chip Resistors :
