Thick film chip resistor KOA RK73H1HTTC1211F featuring AEC Q200 qualification and EU RoHS compliance
RK73H Precision Thick Film Chip Resistor
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, with the exception of Pb-glass contained in the electrode, resistor element, and glass. They are AEC-Q200 Qualified and suitable for various applications requiring reliable and accurate resistance values.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS, AEC-Q200 Qualified
- Termination Material: Sn (Standard), SnPb, Au (Optional)
Technical Specifications
| Type (Inch Size Code) | L (mm) | W (mm) | t (mm) | d (mm) | c (mm) | Power Rating (W) | Max. Working Voltage (V) | Operating Temperature Range (C) | T.C.R. (x10-6/K) | Resistance Range |
| 1F (01005) | 0.4 (0.016) | 0.2 (0.008) | 0.1 (0.004) | 0.11 (0.004) | 0.13 (0.005) | 0.03 | 20 | -55 to +125 | 250 | 10 - 91k |
| 1H (0201) | 0.6 (0.024) | 0.3 (0.012) | 0.1 (0.004) | 0.1 (0.004) | 0.1 (0.004) | 0.05 | 25 | -55 to +125 | 200 | 10 - 1M |
| 1E (0402) | 1.0 (0.039) | 0.5 (0.02) | 0.15 (0.006) | 0.23 (0.009) | 0.2 (0.008) | 0.1 | 30 | -55 to +155 | 200 | 10 - 1M |
| 1J (0603) | 1.6 (0.063) | 0.8 (0.031) | 0.2 (0.008) | 0.3 (0.012) | 0.3 (0.012) | 0.125 | 50 | -55 to +155 | 200 | 10 - 1M |
| 2A (0805) | 2.0 (0.079) | 1.25 (0.049) | 0.25 (0.01) | 0.4 (0.016) | 0.4 (0.016) | 0.25 | 75 | -55 to +155 | 200 | 10 - 1M |
| 2B (1206) | 2.6 (0.102) | 1.6 (0.063) | 0.3 (0.012) | 0.5 (0.02) | 0.5 (0.02) | 0.25 | 100 | -55 to +155 | 200 | 10 - 1M |
| 2E (1210) | 3.2 (0.126) | 2.5 (0.098) | 0.4 (0.016) | 0.65 (0.026) | 0.65 (0.026) | 0.5 | 150 | -55 to +155 | 200 | 10 - 1M |
| 2H/W2H (2010) | 5.0 (0.197) | 2.5 (0.098) | 0.5 (0.02) | 0.65 (0.026) | 0.65 (0.026) | 0.75 | 200 | -55 to +155 | 200 | 10 - 1M |
| 3A/W3A (2512) | 6.3 (0.248) | 3.1 (0.122) | 0.5 (0.02) | 0.65 (0.026) | 0.65 (0.026) | 1.0 | 400 | -55 to +155 | 200 | 10 - 1M |
| W3A2 (2512) | 6.3 (0.248) | 3.1 (0.122) | 0.5 (0.02) | 0.65 (0.026) | 0.65 (0.026) | 2.0 | 400 | -55 to +155 | 200 | 10 - 1M |
Performance Characteristics
| Parameter | Requirement | Limit | Test Method |
| Resistance T.C.R. | 25C +25C/-55C and +25C/+125C | Within specified tolerance Within specified T.C.R. | |
| Overload (Short time) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) | 2% 1%: 1F 0.5% | |
| Resistance to Soldering Heat | 260C 5C, 10 seconds 1 second | 1%: 1F ~ W3A2 (10R1M); 3%: 1H ~ W3A2 (R1M) 0.5%: 1F ~ W3A2 (10 | |
| Rapid Change of Temperature | -55C (30 minutes), +125C (30 minutes), 100 cycles | 1%: 1F 0.5% Another 0.5%: 1F 0.3% 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 0.75%: 1J, 2A, 2B; 1.5%:1F, 1%: Another | |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B 3%: Another 0.75%: 1J, 2A, 2B 1% Another | |
| High Temperature Exposure | +125C, 1000 hours: 1F; +155C, 1000 hours: 1E, 1H, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2 | 1% 0.5%: 1F 0.3% Another |
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.
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