RK73H Precision Thick Film Chip Resistors
The RK73H series offers precision thick film chip resistors with 0.5% and 1% tolerances. These resistors meet EU RoHS requirements and are AEC-Q200 tested. They are suitable for various applications requiring reliable and accurate resistance values.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS, AEC-Q200 tested
- Material: Thick film, Ceramic Substrate, Ni Plating, Sn Plating
Technical Specifications
| Type (EIA Size) | Power Rating (W) | Resistance Range () | Tolerance (%) | T.C.R. (x10/K) | Max. Working Voltage (V) | Operating Temp. Range (C) |
|---|---|---|---|---|---|---|
| 1F (01005) | 0.03 | 10 - 1M | 0.5, 1 | 250 | 20 | -55 to +125 |
| 1H (0201) | 0.05 | 10 - 1M | 0.5, 1 | 200 | 25 | -55 to +125 |
| 1E (0402) | 0.1 | 10 - 1M | 0.5, 1 | 200 | 50 | -55 to +155 |
| 1J (0603) | 0.125 | 10 - 1M | 0.5, 1 | 200 | 75 | -55 to +155 |
| 2A (0805) | 0.25 | 10 - 1M | 0.5, 1 | 200 | 100 | -55 to +155 |
| 2B (1206) | 0.25 | 10 - 1M | 0.5, 1 | 200 | 150 | -55 to +155 |
| 2E (1210) | 0.5 | 10 - 1M | 0.5, 1 | 200 | 200 | -55 to +155 |
| 2H/W2H (2010) | 1.0 | 10 - 1M | 0.5, 1 | 200 | 200 | -55 to +155 |
| 3A/W3A (2512) | 1.0 | 10 - 1M | 0.5, 1 | 200 | 400 | -55 to +155 |
| W3A2 (2512) | 2.0 | 10 - 1M | 0.5, 1 | 200 | 400 | -55 to +155 |
Dimensions (mm)
| Type (EIA Size) | L | c | d | t | W |
|---|---|---|---|---|---|
| 1H (0201) | 0.60.03 | 0.30.03 | 0.10.05 | 0.10.05 | 0.40.1 |
| 1F (01005) | 0.40.02 | 0.20.02 | 0.10.03 | 0.110.03 | 0.30.05 |
| 1E (0402) | 1.0+0.1-0.05 | 0.25+0.05-0.1 | 0.3+0.2-0.1 | 0.4+0.2-0.1 | 0.60.1 |
| 1J (0603) | 1.60.2 | 0.30.1 | 0.150.05 | 0.230.03 | 1.00.1 |
| 2A (0805) | 2.00.2 | 0.50.1 | 0.20.05 | 0.30.05 | 1.250.1 |
| 2B (1206) | 3.20.2 | 0.80.1 | 0.50.05 | 0.50.05 | 1.60.2 |
| 2E (1210) | 3.20.2 | 0.80.1 | 0.50.05 | 0.50.05 | 2.60.2 |
| 2H/W2H (2010) | 2.00.2 | 0.50.1 | 0.20.1 | 0.30.1 | 2.50.2 |
| 3A/W3A (2512) | 3.20.2 | 0.80.1 | 0.50.1 | 0.50.1 | 3.10.2 |
| W3A2 (2512) | 3.20.2 | 0.80.1 | 0.50.1 | 0.50.1 | 3.10.2 |
Ordering Information
Format: Part Designation
- Tolerance: D (0.5%), F (1%)
- Termination Material: T (Sn), L (SnPb), G (Au)
- Packaging: TX, TBL, TC, TCM, TPL, TP, TD, TE (Refer to Appendix A for details)
Nominal Resistance: 3 significant figures + 1 multiplier. "R" indicates decimal on value <100.
Performance Characteristics
| Parameter | Requirement | 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) |
Derating Curves
For resistors operated at an ambient temperature of 70C or higher, power shall be derated according to the derating curve based on Ambient Temperature (C).
For resistors where the terminal part temperature exceeds the rated terminal part temperature, power shall be derated according to the derating curve based on Terminal Part Temperature (C).
2410121546_KOA-RK73H2ATTD1910F_C2482727.pdf
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