Thick Film Chip Resistors KOA RK73B1ETTP124J Suitable for Reflow Wave Soldering and Lead Free Terminals
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 protective metal glaze thick film, offering excellent heat and weather resistance. These resistors are suitable for reflow and wave soldering processes and comply with EU RoHS directives for lead-free terminals. They are available in a comprehensive size range from 0402 to 6432 and have obtained AEC-Q200 relevant data (excluding 1F). Applications include automotive, medical, and aerospace equipment where reliability is critical.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Construction: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Ceramic Substrate, Metal Glaze Thick Film
- Terminal Material: Sn, Au (for specific models), Sn/Pb (for specific models)
- 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/K) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.40.02 x 0.20.02 x 0.110.03 x 0.130.02 | 0.04 | 0.03W | -55+125 | 19.1 (250), 1091k (250), 100k10M (200) | 20V | 30V | 200, 250, 0+300 | 40,000 (TCM) |
| 1H (0603/0201) | 0.60.03 x 0.30.03 x 0.150.05 x 0.230.03 | 0.14 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | 25V | 50V | 200, 400 | 15,000 (TBL/TCM) |
| 1E (1005/0402) | 1.0.. x 0.50.05 x 0.25.. x 0.350.05 | 0.68 | 0.1W | -55+155 | 110M (200) | 75V | 100V | 200 | 20,000 (TPL), 10,000 (TP) |
| 1J (1608/0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.450.1 | 2.14 | 0.1W / 0.125W | -55+155 | 11k (0.125W, 200), 1.1k10M (0.1W, 200), 11M22M (0.1W, 400) | - | - | 200, 400 | 10,000 (TP) |
| 2A (2012/0805) | 2.00.2 x 1.250.1 x 0.3.. x 0.50.1 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | 150V | 200V | 200, 400 | 10,000 (TP) |
| 2B (3216/1206) | 3.20.2 x 1.60.2 x 0.4.. x 0.60.1 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | 200, 400 | 5,000 (TPL), 4,000 (TP) |
| 2E (3225/1210) | - x 2.60.2 x 0.4.. x - | 15.5 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | - | - | 200, 400 | 5,000 (TPL), 4,000 (TP) |
| W2H (5025/2010) | 5.00.2 x 2.50.2 x 0.650.15 x - | 24.3 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | - | - | 200, 400 | - |
| W3A (6432/2512) | 6.30.2 x 3.10.2 x - x - | 37.1 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | 200, 400 | 4,000 (TP) |
| W3A2 (6432/2512) | 6.30.2 x 3.10.2 x - x - | - | 2.0W | -55+95 | 15.6M (200), 6.2M22M (400) | 200V | 400V | 200, 400 | 4,000 (TP) |
Note: Dimensions 'd' for RK73B 2H, 3A, 3A2 differ ('d' = 0.4 +0.2 -0.1 mm). Refer to the datasheet for detailed specifications and derating curves.
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