Product Overview
The RK73H series are precision thick film chip resistors with 0.5% and 1% tolerances. These resistors feature lead-free terminations meeting EU RoHS requirements and are AEC-Q200 tested. They are designed for various applications requiring reliable and precise resistance values.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS compliant, AEC-Q200 tested
- Material: Thick film, ceramic substrate, Sn plating, Ni plating
- Origin: USA
Technical Specifications
| Type Size (EIA Code) | Power Rating | Resistance Range | Tolerance | T.C.R. (x10-6/K) | Max. Working Voltage | Operating Temperature Range |
| 1F (01005) | 0.03W | 10 - 91k* | 1% | 250 | 20V | -55C to +125C |
| 1H (0201) | 0.05W | 10 - 1M | 0.5%, 1% | 200 | 25V | -55C to +125C |
| 1E (0402) | 0.1W | 10 - 1k | 0.5%, 1% | 200 | 50V | -55C to +155C |
| 1J (0603) | 0.125W | 10 - 1M | 0.5%, 1% | 200 | 75V | -55C to +155C |
| 2A (0805) | 0.25W | 10 - 1M | 0.5%, 1% | 200 | 75V | -55C to +155C |
| 2B (1206) | 0.25W | 10 - 1M | 0.5%, 1% | 200 | 100V | -55C to +155C |
| 2E (1210) | 0.5W | 10 - 1M | 0.5%, 1% | 200 | 150V | -55C to +155C |
| 2H/W2H (2010) | 1.0W | 10 - 1M | 0.5%, 1% | 200 | 200V | -55C to +155C |
| 3A/W3A (2512) | 1.0W | 10 - 1M | 0.5%, 1% | 200 | 200V | -55C to +155C |
| W3A2 (2512) | 2.0W | 10 - 1M | 0.5%, 1% | 200 | 400V | -55C to +155C |
Performance Characteristics
| Parameter | Requirement | Typical Test Method |
| Resistance T.C.R. | Within specified tolerance | |
| Overload (Short time) | 2% (1%: 1F; 0.5%: Others) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) |
| Resistance to Soldering Heat | 1% (1F ~ W3A2 (10R1M)); 3% (1H ~ W3A2 (R<10, R>1M)) | 260C 5C, 10 seconds 1 second |
| Rapid Change of Temperature | 1% (1F); 0.5% (Others) | -55C (30 min), +125C (30 min), 100 cycles |
| Moisture Resistance | 2% (1J, 2A, 2B); 3% (Others) | 40C 2C, 90%-95% RH, 1000 hours |
| Endurance at 70C | 2% (1J, 2A, 2B); 3% (Others) | 70C 2C, 1000 hours |
| High Temperature Exposure | 1% | +125C, 1000 hours (1F); +155C, 1000 hours (Others) |
2410121546_KOA-RK73H1ETTP8063F_C2481329.pdf
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