Product Overview
The RK73H series of Flat Chip Resistors (Precision Grade) are designed for high reliability and stability, suitable for demanding applications such as automotive, medical, and aerospace equipment. They feature a small size, light weight, excellent heat and weather resistance due to a metal glaze thick film, and a stable triple-layer electrode structure. These resistors are compatible with automated mounting processes and both flow and reflow soldering. They meet EU-RoHS requirements for lead-free terminations, with exceptions for lead glass in the electrode, resistor element, and glass.
Product Attributes
- Brand: KOA
- Product Type: Flat Chip Resistors (Precision Grade)
- Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
- Certifications: EU-RoHS compliant (lead-free termination), AEC-Q200 qualified (Exemption 1F)
- Material: Metal glaze thick film resistive element, Alumina substrate
- Origin: Japan (implied by company name and product origin)
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x c x d x t | Weight (g/1000pcs) | Nominal Resistance Value | Resistance Tolerance | Rated Power | Rated Ambient Temp. | Rated Terminal Part Temp. | T.C.R. (10-6/K) | Resistance Range () | Max. Working Voltage | Max. Overload Voltage | 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 | E24, E96 | F:1% | 0.03W | 70 | 200 | 100k1M4 | 20V | 30V | 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 | E24, E96 | D:0.5%, F:1% | 0.05W | 70 | 200, 400 | 101M, 1010M4, 19.14 | 25V | 50V | TX:35,000, TC:10,000, TCM:15,000 | |
| 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 | E24, E96 | D:0.5%, F:1% | 0.1W | 70 | 125 | 100, 200 | 101M, 101M, 19.76, 1.02M10M | 75V | 100V | TPL:20,000, TP:10,000 |
| 1J (0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1 | 2.14 | E24, E96 | D:0.5%, F:1% | 0.1W, 0.125W | 70 | 125 | 100, 200 | 1.02k1M, 1.02k1M, 19.76, 1.02M10M, 101k | TP:10,000, 5,000 | ||
| 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 | E24, E96 | D:0.5%, F:1% | 0.25W | 70 | 125 | 100, 200, 400 | 101M, 101M, 19.76, 1.02M10M | 150V | 200V | TP:10,000, 5,000, 4,000 |
| 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 | E24, E96 | D:0.5%, F:1% | 0.25W | 70 | 125 | 100, 200, 400 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 200V | 400V | 5,000, 4,000 |
| 2E (1210) | 2.60.2 x 15.5 W2H (2010) 1 | E24, E96 | D:0.5%, F:1% | 0.5W | 70 | 125 | 100, 200, 400 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 5,000, 4,000 | |||
| W2H (2010) 1 | 5.00.2 x 2.50.2 x 0.650.15 | 24.3 | E24, E96 | D:0.5%, F:1% | 0.75W | 70 | 125 | 100, 200, 400 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 4,000 | ||
| W3A (2512) 1 | 6.30.2 x 3.10.2 | 37.1 | E24, E96 | D:0.5%, F:1% | 1W | 70 | 125 | 100, 200, 400 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 200V (500V5) | 400V (500V5) | 4,000 |
| W3A2 (2512) 1 | 6.30.2 x 3.10.2 | 37.1 | E24, E96 | D:0.5%, F:1% | 2W | 95 | 100, 200, 400 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 200V | 400V | 4,000 |
Note: 1 Also available for RK73H 2H, 3A, 3A2 with different 'd' dimensions (0.4 +0.2 0.1 mm). 4 Nominal resistance for RK73H1F (F:1%) and RK73H1H (1R9.1, 1MR10M) is E24. 5 Consult for Max. working voltage and Max. overload voltage in parentheses.
2410121533_KOA-RK73H1ETTP12R4F_C316897.pdf
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