RK73H Precision Thick Film Chip Resistors
The RK73H series offers high-precision thick film chip resistors with 0.5% and 1% tolerances. These resistors are designed to meet stringent EU RoHS requirements with lead-free terminations. They are AEC-Q200 qualified, ensuring reliability for automotive and industrial applications. The construction features a ceramic substrate, resistive film, protective coating, inner electrode, and solder plating.
Product Attributes
- Brand: KOA Speer Electronics
- Certifications: EU RoHS compliant, AEC-Q200 Qualified
- Material: Thick film, Ceramic Substrate, Ni Plating, Solder Plating
Technical Specifications
| Type (Inch Size Code) | L (mm) | W (mm) | t (mm) | d (mm) | c (mm) | Power Rating (W) | Max Working Voltage (V) | Operating Temp Range (C) | T.C.R. (x10-6/K) | Resistance Range () |
|---|---|---|---|---|---|---|---|---|---|---|
| 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) | 0.03 | 20 | -55 to +125 | 250 | 10 to 91k |
| 1H (0201) | 0.6 (0.024.001) | 0.3 (0.012.001) | 0.05 (0.002.001) | 0.03 (0.001.0003) | 0.1 (0.004.002) | 0.1 | 50 | -55 to +155 | 200 | 10 to 1M (0.5%), 10 to 10M (1%) |
| 1E (0402) | 1.0 (+0.1 -0.05) (0.039 +.004 -.002) | 0.5 (0.02.001) | 0.1 (0.004.001) | 0.1 (0.004.001) | 0.05 (0.002.0008) | 0.125 | 50 | -55 to +155 | 200 | 10 to 1k (0.5%), 10 to 1M (1%) |
| 1J (0603) | 1.6 (0.063.008) | 0.8 (0.031.004) | 0.2 (0.008.002) | 0.3 (0.012.004) | 0.1 (0.004.002) | 0.25 | 75 | -55 to +155 | 100, 200 | 10 to 1M (0.5%), 10 to 1M (1%) |
| 2A (0805) | 2.0 (0.079.008) | 1.25 (0.049.004) | 0.25 (0.01.002) | 0.3 (0.012.004) | 0.15 (0.006.002) | 0.25 | 100 | -55 to +155 | 100, 200 | 10 to 1M (0.5%), 10 to 1M (1%) |
| 2B (1206) | 3.2 (0.126.008) | 1.6 (0.063.008) | 0.35 (0.014.002) | 0.4 (0.016.008) | 0.2 (0.008.004) | 0.5 | 150 | -55 to +155 | 100, 200, 400 | 10 to 1M (0.5%), 10 to 1M (1%) |
| 2E (1210) | 2.6 (0.102.008) | 1.6 (0.063.008) | 0.45 (0.018.004) | 0.4 (0.016.008) | 0.2 (0.008.004) | 0.5 | 150 | -55 to +155 | 100, 200, 400 | 10 to 1M (0.5%), 10 to 1M (1%) |
| 2H/W2H (2010) | 5.0 (0.197.008) | 2.5 (0.098.008) | 0.5 (0.02.004) | 0.4 (0.016.008) | 0.3 (0.012.004) | 1.0 | 200 | -55 to +155 | 100, 200, 400 | 10 to 1M (0.5%), 10 to 1M (1%) |
| 3A/W3A/W3A2 (2512) | 6.3 (0.248.008) | 3.1 (0.122.008) | 0.65 (0.026.006) | 0.4 (0.016.008) | 0.3 (0.012.004) | 2.0 | 400 | -55 to +155 | 100, 200, 400 | 10 to 1M (0.5%), 10 to 1M (1%) |
Performance Characteristics
| Parameter | Requirement | Test Method |
|---|---|---|
| Resistance T.C.R. | Within specified tolerance | |
| Overload (Short time) | 2% (1%: 1F) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) |
| Resistance to Soldering Heat | 1% (0.5%: 1F) | 260C 5C, 10 seconds 1 second |
| Rapid Change of Temperature | 0.5% (0.3%: 1F) | -55C (30 min), +125C (30 min), 100 cycles |
| Moisture Resistance | 0.75% (1.5%: 1F) | 40C 2C, 90%-95% RH, 1000 hours |
| Endurance at 70C | 0.75% (1%: 1F) | 70C 2C, 1000 hours |
| High Temperature Exposure | 0.5% (0.3%: 1F) | +125C, 1000 hours (1F); +155C, 1000 hours (others) |
2410121530_KOA-RK73H1ETTP8661F_C830264.pdf
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