RK73H Precision Thick Film Chip Resistors
The RK73H series are precision thick film chip resistors offering 0.5% and 1% tolerances. These resistors feature lead-free terminations meeting EU RoHS requirements and are AEC-Q200 Qualified. They are suitable for a wide range of applications requiring stable and reliable resistance characteristics.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS, AEC-Q200 Qualified
- Material: Thick film, Ceramic Substrate, Ni Plating, Solder Plating
Technical Specifications
| Type Size (EIA Code) | L (mm) | W (mm) | t (mm) | d (mm) | Power Rating (W) | Max. Working Voltage (V) | Operating Temp. Range (C) | Resistance Range () | T.C.R. (x10-6/K) | Tolerance |
| 1F (01005) | 0.4 (0.016) | 0.2 (0.008) | 0.1 (0.004) | 0.11 (0.004) | 0.03 | 20 | -55 to +125 | 10 - 91k | 250 | 1% |
| 1H (0201) | 0.6 (0.024) | 0.3 (0.012) | 0.1 (0.004) | 0.05 (0.002) | 0.05 | 25 | -55 to +125 | 1.0 - 9.1, 1M - 10M | 200 | 0.5%, 1% |
| 1E (0402) | 1.0 (0.039) | 0.5 (0.02) | 0.15 (0.006) | 0.1 (0.004) | 0.125 | 50 | -55 to +155 | 10 - 1k, 1.02M - 10M | 200 | 0.5%, 1% |
| 1J (0603) | 1.6 (0.063) | 0.8 (0.031) | 0.2 (0.008) | 0.1 (0.004) | 0.1 | 50 | -55 to +155 | 10 - 1k, 1.02M - 10M | 200 | 0.5%, 1% |
| 2A (0805) | 2.0 (0.079) | 1.25 (0.049) | 0.25 (0.01) | 0.15 (0.006) | 0.25 | 75 | -55 to +155 | 10 - 1M, 1.02M - 5.6M | 100, 200 | 0.5%, 1% |
| 2B (1206) | 3.2 (0.126) | 1.6 (0.063) | 0.4 (0.016) | 0.2 (0.008) | 0.25 | 100 | -55 to +155 | 10 - 1M, 1.02M - 5.6M | 100, 200 | 0.5%, 1% |
| 2E (1210) | 3.2 (0.126) | 2.5 (0.098) | 0.5 (0.02) | 0.2 (0.008) | 0.5 | 150 | -55 to +155 | 10 - 1M, 1.02M - 5.6M | 100, 200, 400 | 0.5%, 1% |
| W2H/2H (2010) | 5.0 (0.197) | 2.5 (0.098) | 0.5 (0.02) | 0.2 (0.008) | 0.75 | 200 | -55 to +155 | 10 - 1M, 1.02M - 5.6M | 100, 200, 400 | 0.5%, 1% |
| W3A/3A (2512) | 6.3 (0.248) | 3.1 (0.122) | 0.65 (0.026) | 0.23 (0.009) | 1.0 | 200 | -55 to +155 | 10 - 1M, 1.02M - 5.6M | 100, 200, 400 | 0.5%, 1% |
| W3A2 (2512) | 6.3 (0.248) | 3.1 (0.122) | 0.65 (0.026) | 0.23 (0.009) | 2.0 | 400 | -55 to +155 | 10 - 1M, 1.02M - 5.6M, 5.62M - 10M | 100, 200, 400 | 0.5%, 1% |
Performance Characteristics
| Parameter | Requirement | Limit |
| Resistance T.C.R. | 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% (10R1M); 3% (R<10, R>1M) |
| Rapid Change of Temperature | -55C (30 min), +125C (30 min), 100 cycles | 1% (0.5%: 1F) |
| Moisture Resistance | 40C 2C, 90%-95% RH, 1000 hours | 2% (0.75%: 1J, 2A, 2B); 3% (1%: 1F) |
| Endurance at 70C | 70C 2C, 1000 hours | 2% (0.75%: 1J, 2A, 2B); 3% (1%: 1F) |
| High Temperature Exposure | +125C, 1000 hours (1F); +155C, 1000 hours (others) | 1% (0.5%: 1F) |
2410121530_KOA-RK73H1HTTC1130F_C5242649.pdf
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