Product Overview
The RK73H series are high-precision, flat chip resistors featuring a metal glaze thick film for excellent heat and weather resistance. Their triple-layer electrode structure ensures high stability and reliability. These resistors are designed for automatic mounting machines and are suitable for both flow and reflow soldering. Products with lead-free termination meet EU-RoHS requirements, with exemptions for lead glass in electrode, resistor element, and glass. Select models are AEC-Q200 qualified. Applications include automotive, medical, and aerospace equipment, though specific consultation is advised for critical applications.
Product Attributes
- Brand: KOA
- Product Type: Thick Film (Precision) Flat Chip Resistors
- Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
- Certifications: EU-RoHS compliant (for lead-free termination), AEC-Q200 qualified (Exemption 1F)
- Material: Alumina substrate, Metal glaze thick film resistive element, Triple-layer electrode
- Origin: Japan (implied by manufacturer information)
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x c x d x t | Weight (1000pcs) (g) | Power Rating | Nominal Resistance Range () | Resistance Tolerance | T.C.R. (106/K) | Max. Working Voltage (V) | Max. Overload Voltage (V) | Packaging & Q'ty/Reel (pcs) |
| 1F (01005) | 0.40.02 x 0.20.02 x 0.100.03 x 0.110.03 x 0.130.02 | 0.04 | 0.03W | 100k2M (E24) | F:1% | 250 | 20 | 30 | TX: 40,000 |
| 1H (0201) | 0.60.03 x 0.30.03 x 0.10.05 x 0.150.05 x 0.230.03 | 0.14 | 0.05W | 1010M | D:0.5%, F:1% | 200, 400 | 25 | 50 | TBL: 20,000 |
| 1E (0402) | 1.0+0.1-0.05 x 0.50.05 x 0.20.1 x 0.25+0.05-0.1 x 0.350.05 | 0.68 | 0.1W | 101M | D:0.5%, F:1% | 100, 200 | 75 | 100 | TC: 10,000, TCM: 15,000 |
| 1J (0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1 | 2.14 | 0.1W | 1.02k1M | D:0.5%, F:1% | 100, 200 | - | - | TPL: 20,000, TP: 10,000 |
| 0.125W variant of 1J | 1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1 | 2.14 | 0.125W | 101k | D:0.5%, F:1% | 100, 200 | - | - | TPL: 20,000, TP: 10,000 |
| 2A (0805) | 2.00.2 x 1.250.1 x 0.40.2 x 0.3+0.2-0.1 x 0.50.1 | 4.54 | 0.25W | 101M | D:0.5%, F:1% | 100, 200, 400 | 150 | 200 | TP: 10,000 |
| 2B (1206) | 3.20.2 x 1.60.2 x 0.50.3 x 0.4+0.2-0.1 x 0.60.1 | 9.14 | 0.25W | 101M | D:0.5%, F:1% | 100, 200, 400 | 200 | 400 | - |
| 2E (1210) | 2.60.2 x 15.5 (Dimensions for 2E are incomplete in source) | - | 0.5W | 101M | D:0.5%, F:1% | 100, 200, 400 | - | - | - |
| W2H (2010) | 5.00.2 x 2.50.2 x 0.650.15 (Dimensions for W2H are incomplete in source) | 24.3 | 0.75W | 101M | D:0.5%, F:1% | 100, 200, 400 | - | - | - |
| W3A (2512) | 6.30.2 x 3.10.2 (Dimensions for W3A are incomplete in source) | 37.1 | 1W | 101M | D:0.5%, F:1% | 100, 200, 400 | 200 | 400 | - |
| W3A2 (2512) | 6.30.2 x 3.10.2 (Dimensions for W3A2 are incomplete in source) | 37.1 | 2W | 101M | D:0.5%, F:1% | 100, 200, 400 | 200 | 400 | - |
2409272202_KOA-RK73H1JTTD1802F_C211701.pdf
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