Durable Thick Film Chip Resistors KOA RK73BW3ATTE203J Metal Glaze Lead Free Terminals Wide Size Range
THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors designed for a wide range of applications. They feature a robust construction with a metal glaze thick film for excellent heat and weather resistance. These resistors are suitable for reflow and wave soldering and are compliant with EU RoHS directives for lead-free terminals. They are available in a comprehensive range of sizes from 0402 to 6432, with AEC-Q200 data available for most models. Applications include automotive, medical, and aerospace equipment where reliability is critical.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Construction: Metal glaze thick film
- Appearance Color: Black
- Terminal Material: Lead-free (compliant with EU RoHS)
- Certifications: 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 t | Weight (g/1000pcs) | Rated Power (at 70C) | Operating Temp. Range | Max. Operating Voltage | Resistance Range () | Tolerance | TCR (x10-6/K) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4 x 0.2 x 0.13 | 0.04 | 0.03W | -55 ~ +125 | 20V | 1 to 9.1k (250), 10k to 10M (200) | 2%, 5% | 200, 250 | 40,000 (TCM) |
| 1H (0603/0201) | 0.6 x 0.3 x 0.23 | 0.14 | 0.05W | -55 ~ +155 | 25V | 1 to 10M | 2%, 5% | 200, 400 | 15,000 (TCM) |
| 1E (1005/0402) | 1.0 x 0.5 x 0.35 | 0.68 | 0.1W | -55 ~ +155 | 75V | 1 to 10M | 2%, 5% | 200, 400 | 10,000 (TP) |
| 1J (1608/0603) | 1.6 x 0.8 x 0.45 | 2.14 | 0.1W | -55 ~ +155 | - | 1.1k to 22M | 2%, 5% | 200, 400 | 10,000 (TP) |
| 2A (2012/0805) | 2.0 x 1.25 x 0.5 | 4.54 | 0.25W | -55 ~ +155 | 150V | 1 to 10M | 2%, 5% | 200, 400 | 10,000 (TP) |
| 2B (3216/1206) | 3.2 x 1.6 x 0.6 | 9.14 | 0.25W | -55 ~ +155 | 200V | 1 to 22M | 2%, 5% | 200, 400 | 5,000 (TP) |
| 2E (3225/1210) | 3.2 x 2.5 x 0.4 | 15.5 | 0.5W | -55 ~ +155 | - | 1 to 10M | 2%, 5% | 200, 400 | 5,000 (TP) |
| W2H (5025/2010) | 5.0 x 2.5 x 0.65 | 24.3 | 0.75W | -55 ~ +155 | - | 1 to 22M | 2%, 5% | 200, 400 | 4,000 (TP) |
| W3A (6432/2512) | 6.3 x 3.1 x 0.4 | 37.1 | 1.0W | -55 ~ +155 | 200V | 1 to 22M | 2%, 5% | 200, 400 | 4,000 (TP) |
| W3A2 (6432/2512) | 6.3 x 3.1 x 0.4 | 37.1 | 2.0W | -55 ~ +155 | 200V | 1 to 22M | 2%, 5% | 200, 400 | 4,000 (TP) |
Note: Specifications are subject to change without notice. Please confirm with the latest datasheet before ordering or use.
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