RK73H Precision Thick Film Chip Resistor
The RK73H series offers 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 Qualified. They are designed for various electronic applications requiring reliable and accurate resistance values.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS Compliant, AEC-Q200 Qualified
- Material: Thick film on ceramic substrate with protective coating, Ni plating, and solder plating.
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x T | Power Rating (W) | Resistance Range | Tolerance | Max. Working Voltage (V) | Operating Temp. Range (C) | T.C.R. (x10-6/K) |
|---|---|---|---|---|---|---|---|
| 1F (01005) | 0.4 x 0.2 x 0.1 | 0.03 | 10 - 91k | 1% | 20 | -55 to +125 | 250 |
| 1H (0201) | 0.6 x 0.3 x 0.1 | 0.05 | 10 - 1M (E-24) | 0.5%, 1% | 25 | -55 to +125 | 200, 400 |
| 1E (0402) | 1.0 x 0.5 x 0.2 | 0.1 | 10 - 1M (E-24) | 0.5%, 1% | 50 | -55 to +155 | 200, 400 |
| 1J (0603) | 1.6 x 0.8 x 0.4 | 0.125 | 10 - 1M (E-24) | 0.5%, 1% | 50 | -55 to +155 | 200, 400 |
| 2A (0805) | 2.0 x 1.25 x 0.5 | 0.25 | 10 - 1M (E-24) | 0.5%, 1% | 75 | -55 to +155 | 100, 200 |
| 2B (1206) | 3.2 x 1.6 x 0.5 | 0.25 | 10 - 1M (E-24) | 0.5%, 1% | 100 | -55 to +155 | 100, 200 |
| 2E (1210) | 3.2 x 2.5 x 0.5 | 0.5 | 10 - 1M | 0.5%, 1% | 150 | -55 to +155 | 100, 200 |
| W2H / 2H (2010) | 5.0 x 2.5 x 0.5 | 0.75 | 10 - 1M | 0.5%, 1% | 200 | -55 to +155 | 100, 200 |
| W3A / 3A (2512) | 6.3 x 3.1 x 0.65 | 1.0 | 10 - 1M | 0.5%, 1% | 200 | -55 to +155 | 100, 200 |
| W3A2 (2512) | 6.3 x 3.1 x 0.65 | 2.0 | 10 - 1M | 0.5%, 1% | 400 | -55 to +155 | 100, 200 |
Performance Characteristics
| Parameter | Requirement | Test Method |
|---|---|---|
| Resistance T.C.R. | Within specified tolerance | |
| Overload (Short time) | 2% (1%: 1F) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) |
| Resistance to Soldering Heat | 1% (0.5%: 1F) | 260C 5C, 10 seconds 1 second |
| Rapid Change of Temperature | 0.5% (0.3%: 1F) | -55C (30 min), +125C (30 min), 100 cycles |
| Moisture Resistance | 0.75% (1.5%: 1F) | 40C 2C, 90%-95% RH, 1000 hours |
| Endurance at 70C | 0.75% (1J, 2A, 2B) | 70C 2C, 1000 hours |
| High Temperature Exposure | 0.5% (1F) | +125C, 1000 hours (1F); +155C, 1000 hours (others) |
Derating Curves
For resistors operated at an ambient temperature of 70C or above, a power rating shall be derated in accordance with the ambient temperature derating curve. For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with the terminal part temperature derating curve.
2410121530_KOA-RK73H2ATTD3300F_C276225.pdf
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