Thick Film Chip Resistors KOA RK73B1ETTP243J Featuring Ceramic Substrate and Metal Glaze Construction
THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors designed for a wide range of applications. Featuring a robust construction with a metal glaze thick film for excellent heat and weather resistance, these resistors are suitable for both reflow and wave soldering. They are compliant with EU RoHS directives for lead-free terminals, with specific exemptions for lead glass in electrodes, resistive film, and glass. The series offers a comprehensive product lineup from 0402 to 6432 sizes and has obtained AEC-Q200 related data (excluding 1F).
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Series: RK73B
- Structure: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Ceramic substrate, Metal glaze thick film
- Certifications: EU RoHS compliant (terminals lead-free), AEC-Q200 (excluding 1F)
- Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x d x t | Weight (g/1000pcs) | Rated Power | Operating Temp. Range | Resistance Value Range ($$) | Max. Operating Voltage | Max. Overload Voltage | TCR ($10^{-6}/K$) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4x0.2x0.11x0.13 | 0.04 | 0.03W | -55 ~ +125 | 1~9.1 (G: 2%, J: 5%) 10~91k (G: 2%, J: 5%) 100k~10M (G: 2%) | 20V | 30V | 200, 250, 0~+300 | TCM: 15,000, TD: 40,000 |
| 1H (0603/0201) | 0.6x0.3x0.15x0.23 | 0.14 | 0.05W | -55 ~ +155 | 1~9.1 (G: 2%, J: 5%) 10~10M (G: 2%, J: 5%) | 25V | 50V | 200, 400 | TCM: 15,000 |
| 1E (1005/0402) | 1.0x0.5x0.25x0.35 | 0.68 | 0.1W | -55 ~ +155 | 1~10M (G: 2%, J: 5%) | 75V | 100V | 200 | TPL: 20,000, TP: 10,000 |
| 1J (1608/0603) | 1.6x0.8x0.3x0.45 | 2.14 | 0.1W / 0.125W | -55 ~ +155 | 1.1k~10M (G: 2%, J: 5%) 1.1k~22M (G: 2%) 1~1k (G: 2%, J: 5%) | - | - | 200, 400 | TP: 10,000 |
| 2A (2012/0805) | 2.0x1.25x0.3x0.5 | 4.54 | 0.25W | -55 ~ +155 | 1~1M (G: 2%, J: 5%) 1.1M~10M (G: 2%) | 150V | 200V | 200, 400 | TP: 10,000, TD: 5,000 |
| 2B (3216/1206) | 3.2x1.6x0.4x0.6 | 9.14 | 0.25W | -55 ~ +155 | 1~5.6M (G: 2%, J: 5%) 6.2M~22M (G: 2%) | 200V | 400V | 200, 400 | TD: 5,000 |
| 2E (3225/1210) | 3.2x2.5x0.4x0.6 | 15.5 | 0.5W | -55 ~ +155 | 1~5.6M (G: 2%, J: 5%) 6.2M~10M (G: 2%) | - | - | 200, 400 | TD: 5,000 |
| W2H (5025/2010) | 5.0x2.5x0.65x- | 24.3 | 0.75W | -55 ~ +155 | 1~5.6M (G: 2%, J: 5%) 6.2M~22M (G: 2%) | - | - | 200, 400 | - |
| W3A (6432/2512) | 6.3x3.1x-x- | 37.1 | 1.0W | -55 ~ +155 | 1~5.6M (G: 2%, J: 5%) 6.2M~22M (G: 2%) | 200V | 400V | 200, 400 | - |
| W3A2 (6432/2512) | 6.3x3.1x-x- | 37.1 | 2.0W* | -55 ~ +95 (Term. Temp.) | 1~5.6M (G: 2%, J: 5%) 6.2M~22M (G: 2%) | 200V | 400V | 200, 400 | - |
*Note: W3A2 rated power is 2.0W at 95 terminal temperature.
Application Scenarios: Automotive equipment, medical equipment, aviation equipment, and other equipment where personal safety or significant loss may occur.
Advantages: Wide product lineup, excellent heat and weather resistance, suitable for reflow and wave soldering, lead-free terminals compliant with EU RoHS.
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