Product Overview
The RK73H series are precision-grade flat chip resistors featuring a thick metal glaze resistive film for excellent heat and weather resistance. Their triple-layer electrode structure ensures high stability and reliability. These resistors are designed for automated mounting processes, compatible with both flow and reflow soldering. Lead-free termination options meet EU-RoHS requirements, with exemptions for lead glass in electrode, resistor element, and glass. Many models are AEC-Q200 qualified, making them suitable for demanding 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 (lead-free termination), AEC-Q200 qualified (Exemption 1F)
- Material: Alumina substrate, Metal glaze thick film resistive element, Triple-layer electrode structure
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x c x d x t | Weight (1000pcs) (g) | Product Code Example | Power Rating | Terminal Surface Material | Taping | Resistance Tolerance | Nominal Resistance Range | Max. Working Voltage | Max. Overload Voltage | Packaging & Q'ty/Reel (pcs) | T.C.R. (x10-6/K) | Rated Ambient Temp. | Rated Terminal Part Temp. |
| 1F (01005) | 0.40.02 x 0.20.02 x 0.100.03 x 0.110.03 x 0.130.02 | 0.04 | RK73H1F T D 1002 F | 0.03W | T: Sn, G: Au*, L: Sn/Pb** | TX: 40,000 | D: 0.5% (E24, E96) | 100k2M*4, 1091k*4 | 20V | 30V | TX: 40,000 | 200, 250 | 70 | |
| 1H (0201) | 0.60.03 x 0.30.03 x 0.10.05 x 0.150.05 x 0.230.03 | 0.14 | RK73H1H T D 1002 F | 0.05W | T: Sn, G: Au*, L: Sn/Pb** | TBL, TC, TCM: 10,000/15,000 | F: 1% (E24, E96) | 101M, 1010M*4, 19.1*4 | 25V | 50V | TC: 10,000, TCM: 15,000 | 200, 400 | 70 | 125 |
| 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 | RK73H1E T D 1002 F | 0.1W | T: Sn, G: Au*, L: Sn/Pb** | TPL, TP: 20,000/10,000 | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M10M, 19.76 | 75V | 100V | TPL: 20,000, TP: 10,000 | 100, 200 | 70 | 125 |
| 1J (0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1 | 2.14 | RK73H1J T D 1002 F | 0.1W | T: Sn, G: Au*, L: Sn/Pb** | TPL, TP: 10,000/5,000 | D: 0.5% (E24, E96), F: 1% (E24, E96) | 1.02k1M, 1.02M10M, 101k, 19.76 | TP: 10,000, 5,000 | 100, 200 | 70 | 125 | ||
| 0.125W (Size not specified) | RK73H T D 1002 F | 0.125W | T: Sn, G: Au*, L: Sn/Pb** | TPL, TP: 10,000/5,000 | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101k, 19.76 | TP: 10,000, 5,000 | 100, 200 | 70 | 125 | ||||
| 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 | RK73H2A T D 1002 F | 0.25W | T: Sn, G: Au*, L: Sn/Pb** | TD: 4,000 | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M10M, 19.76 | 150V | 200V | TD: 4,000 | 100, 200, 400 | 70 | 125 |
| 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 | RK73H2B T D 1002 F | 0.25W | T: Sn, G: Au*, L: Sn/Pb** | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M5.6M, 19.76, 5.62M10M | 200V | 400V | 5,000, 4,000 | 100, 200, 400 | 70 | 125 | |
| 2E (1210) | 2.60.2 x 15.5 (Dimensions L, W unclear) | RK73H2E T D 1002 F | 0.5W | T: Sn, G: Au*, L: Sn/Pb** | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M5.6M, 19.76, 5.62M10M | 5,000, 4,000 | 100, 200, 400 | 70 | 125 | ||||
| W2H (2010) | 5.00.2 x 2.50.2 x 0.650.15 (Dimensions d, t unclear) | 24.3 | RK73H W2H T D 1002 F | 0.75W | T: Sn, L: Sn/Pb** | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M5.6M, 19.76, 5.62M10M | 4,000 | 100, 200, 400 | 70 | 125 | |||
| W3A (2512) | 6.30.2 x 3.10.2 (Dimensions d, t unclear) | 37.1 | RK73H W3A T D 1002 F | 1W | T: Sn, L: Sn/Pb** | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M5.6M, 19.76, 5.62M10M | 200V | 400V | 4,000 | 100, 200, 400 | 70 | 125 | |
| W3A2 (2512) | (Dimensions L, W, d, t unclear) | RK73H W3A2 T D 1002 F | 2W | T: Sn, L: Sn/Pb** | D: 0.5% (E24, E96), F: 1% (E24, E96) | 101M, 1.02M5.6M, 19.76, 5.62M10M | 200V | 400V | 4,000 | 100, 200, 400 | 95 |
* Gold plated electrodes available with 1E, 1J, 2A types (101M). Please consult for specifications.
** Sn/Pb termination is for specific applications and may differ from standard.
*4 Nominal resistance values for RK73H1F (F: 1%) and RK73H1H (1R9.1, 1MR10M) are E24.
2409272202_KOA-RK73H1ETTP2002F_C514896.pdf
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