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.
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 :