RK73H Precision Thick Film Chip Resistors
The RK73H series of precision thick film chip resistors offers 0.5% and 1% tolerances. These resistors feature lead-free terminations meeting EU RoHS requirements, with specific exemptions for Pb-glass in electrodes, resistor elements, and glass. They are AEC-Q200 Qualified and suitable for a wide range of applications requiring reliable and accurate resistance values.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS, AEC-Q200 Qualified
- Material: Thick Film
Technical Specifications
| Type/Size Code | Dimensions (mm) | Nominal Resistance Range | Tolerance | Power Rating (W) | Max. Working Voltage (V) | T.C.R. (x10-6/K) | Operating Temp. Range (C) |
|---|---|---|---|---|---|---|---|
| 1F (01005) | 0.4 x 0.2 x 0.1 (L x W x T) | 10 - 91k | 1% | 0.03 | 20 | 250 | -55 to +125 |
| 1H (0201) | 0.6 x 0.3 x 0.15 (L x W x T) | 1.0 - 9.1, 1M - 10M | 0.5%, 1% | 0.05 | 50 | 200, 400 | -55 to +155 |
| 1E (0402) | 1.0 x 0.5 x 0.2 (L x W x T) | 10 - 1k | 0.5%, 1% | 0.1 | 50 | 200 | -55 to +155 |
| 1J (0603) | 1.6 x 0.8 x 0.4 (L x W x T) | 10 - 1M | 0.5%, 1% | 0.125 | 75 | 100, 200 | -55 to +155 |
| 2A (0805) | 2.0 x 1.25 x 0.4 (L x W x T) | 10 - 1M | 0.5%, 1% | 0.25 | 100 | 100, 200 | -55 to +155 |
| 2B (1206) | 3.2 x 1.6 x 0.5 (L x W x T) | 10 - 1M | 0.5%, 1% | 0.25 | 150 | 100, 200 | -55 to +155 |
| 2E (1210) | 3.2 x 2.5 x 0.5 (L x W x T) | 10 - 1M | 0.5%, 1% | 0.5 | 200 | 100, 200 | -55 to +155 |
| 2H/W2H (2010) | 5.0 x 2.5 x 0.6 (L x W x T) | 10 - 1M | 0.5%, 1% | 0.75 | 200 | 100, 200 | -55 to +155 |
| 3A/W3A (2512) | 6.3 x 3.1 x 0.6 (L x W x T) | 10 - 1M | 0.5%, 1% | 1.0 | 400 | 100, 200 | -55 to +155 |
| W3A2 (2512) | 6.3 x 3.1 x 0.6 (L x W x T) | 10 - 1M | 0.5%, 1% | 2.0 | 400 | 100, 200 | -55 to +155 |
Performance Characteristics
| Parameter | Requirement | Limit | Test Method |
|---|---|---|---|
| Resistance T.C.R. | 25C +25C/-55C and +25C/+125C | Within specified tolerance | |
| Overload (Short time) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) | 2% (1%: 1F) | |
| Resistance to Soldering Heat | 260C 5C, 10 seconds 1 second | 1% (1F ~ W3A2, 10R1M); 3% (1H ~ W3A2, R<10, R>1M) | |
| Rapid Change of Temperature | -55C (30 min), +125C (30 min), 100 cycles | 1% (1F); 0.5% (Others) | |
| Moisture Resistance | 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2% (1J, 2A, 2B); 3% (Others) | |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2% (1J, 2A, 2B); 3% (Others) | |
| High Temperature Exposure | +125C, 1000 hours (1F); +155C, 1000 hours (Others) | 1% |
2410121530_KOA-RK73H1ETTP7321F_C5242640.pdf
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