RK73H Precision Thick Film Chip Resistor
The RK73H series offers high-precision thick film chip resistors with 0.5% and 1% tolerances. These resistors are designed to meet EU RoHS requirements with lead-free terminations, excluding Pb-glass in the electrode, resistor element, and glass. They are AEC-Q200 Qualified and suitable for a wide range of applications requiring reliable performance and tight tolerance.
Product Attributes
- Brand: KOA Speer Electronics
- Certifications: EU RoHS Compliant, AEC-Q200 Qualified
- Construction: Thick Film Chip Resistor
- Material: Ceramic Substrate, Resistive Film, Protective Coating, Inner Electrode, Solder Plating Ni Plating
Technical Specifications
| Type (Inch Size Code) | L (mm) | W (mm) | c (mm) | d (mm) | t (mm) | Power Rating | Resistance Range | Tolerance | T.C.R. (x10-6/K) | Max. Working Voltage (V) | Operating Temp. Range (C) |
| 1F (01005) | 0.4 (0.016.0008) | 0.2 (0.008.0008) | 0.1 (0.004.001) | 0.11 (0.004.001) | 0.02 (0.005.0008) | 0.03W | 10 - 91k* | 1% | 250 | 20 | -55 to +125 |
| 1H (0201) | 0.6 (0.024.001) | 1.0 (0.039 +.004 -.002) | 0.25 (0.01 +.002 -.004) | 0.3 (0.012 +.008 -.004) | 0.4 (0.016 +.008 -.004) | 0.1W | 10 - 1M | 0.5%, 1% | 200, 400 | 50 | -55 to +155 |
| 1E (0402) | 0.4 (0.016.0008) | 0.2 (0.008.0008) | 0.1 (0.004.001) | 0.11 (0.004.001) | 0.13 (0.005.0008) | 0.1W | 10 - 1k | 0.5%, 1% | 200, 400 | 30 | -55 to +155 |
| 1J (0603) | 1.0 (0.039.002) | 0.6 (0.024.001) | 0.3 (0.012.001) | 0.3 (0.012.001) | 0.4 (0.016.008) | 0.125W | 10 - 1M | 0.5%, 1% | 100, 200, 400 | 75 | -55 to +155 |
| 2A (0805) | 2.0 (0.079.008) | 1.25 (0.049.004) | 0.5 (0.02.002) | 0.3 (0.012.004) | 0.5 (0.02.004) | 0.25W | 10 - 1M | 0.5%, 1% | 100, 200, 400 | 150 | -55 to +155 |
| 2B (1206) | 3.2 (0.126.008) | 1.6 (0.063.008) | 0.5 (0.02.002) | 0.3 (0.012.004) | 0.5 (0.02.004) | 0.25W | 10 - 1M | 0.5%, 1% | 100, 200, 400 | 200 | -55 to +155 |
| 2E (1210) | 3.2 (0.126.008) | 2.5 (0.098.008) | 0.5 (0.02.002) | 0.3 (0.012.004) | 0.5 (0.02.004) | 0.5W | 10 - 1M | 0.5%, 1% | 100, 200, 400 | 200 | -55 to +155 |
| 2H/W2H (2010) | 5.0 (0.197.008) | 2.5 (0.098.008) | 0.65 (0.026.006) | 0.3 (0.012.004) | 0.5 (0.02.004) | 0.75W | 10 - 1M | 0.5%, 1% | 100, 200, 400 | 400 | -55 to +155 |
| 3A/W3A (2512) | 6.3 (0.248.008) | 3.1 (0.122.008) | 0.65 (0.026.006) | 0.3 (0.012.004) | 0.5 (0.02.004) | 1.0W | 10 - 1M | 0.5%, 1% | 100, 200, 400 | 400 | -55 to +155 |
| W3A2 (2512) | 6.3 (0.248.008) | 3.1 (0.122.008) | 0.65 (0.026.006) | 0.3 (0.012.004) | 0.5 (0.02.004) | 2.0W | 5.62M - 10M | 0.5%, 1% | 100, 200, 400 | 200 | -55 to +155 |
Performance Characteristics
| Parameter | Requirement | Limit | Test Method |
| 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% | |
| 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% Another | |
| Moisture Resistance | 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B; 3%: Another | |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B; 3%: Another | |
| High Temperature Exposure | +125C, 1000 hours: 1F; +155C, 1000 hours: 1E, 1H, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2 | 1% |
2410121536_KOA-RK73H2BTTD5761F_C369185.pdf
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