THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors designed for a wide range of applications. They feature a robust construction with a protective metal glaze thick film, offering excellent heat and weather resistance. These resistors are suitable for reflow and wave soldering processes and are RoHS compliant, with lead-free terminals. They are available in a comprehensive size range from 0402 to 6432 and have obtained AEC-Q200 relevant data (excluding 1F).
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Structure: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Ceramic Substrate, Metal Glaze Thick Film
- Certifications: EU RoHS compliant (excluding lead glass in electrodes, resistance film, and glass), AEC-Q200 relevant data obtained (excluding 1F)
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x t | Weight (g/1000pcs) | Rated Power | Operating Temp. Range | Resistance Value Range () | Max. Operating Voltage | Max. Overload Voltage | Resistance Tolerance | TCR (10/K) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4 x 0.2 x 0.13 | 0.04 | 0.03W | -55+125 | 19.1k (E24) | 20V | 30V | 2%, 5% | 200, 250, 0+300 | 40,000 (TCM) |
| 1H (0603/0201) | 0.6 x 0.3 x 0.23 | 0.14 | 0.05W | -55+155 | 110M (E24) | 25V | 50V | 2%, 5% | 200, 400 | 15,000 (TBL) |
| 1E (1005/0402) | 1.0 x 0.5 x 0.35 | 0.68 | 0.1W | -55+155 | 110M (E24) | 75V | 100V | 2%, 5% | 200, 400 | 10,000 (TP) |
| 1J (1608/0603) | 1.6 x 0.8 x 0.45 | 2.14 | 0.1W | -55+155 | 1.1k10M (E24) | - | - | 2%, 5% | 200, 400 | 10,000 (TP) |
| 1J AT (1608/0603) | 1.6 x 0.8 x 0.45 | 2.14 | 0.125W | -55+155 | 11k (E24) | - | - | 2%, 5% | 200, 400 | 10,000 (TP) |
| 2A (2012/0805) | 2.0 x 1.25 x 0.5 | 4.54 | 0.25W | -55+155 | 11M (E24) | 150V | 200V | 2%, 5% | 200, 400 | 10,000 (TP) |
| 2B (3216/1206) | 3.2 x 1.6 x 0.6 | 9.14 | 0.25W | -55+155 | 15.6M (E24) | 200V | 400V | 2%, 5% | 200, 400 | 5,000 (TP) |
| 2E (3225/1210) | 3.2 x 2.5 x 0.6 | 15.5 | 0.5W | -55+155 | 15.6M (E24) | - | - | 2%, 5% | 200, 400 | 5,000 (TP) |
| W2H (5025/2010) | 5.0 x 2.5 x 0.65 | 24.3 | 0.75W | -55+155 | 15.6M (E24) | - | - | 2%, 5% | 200, 400 | 4,000 (TP) |
| W3A (6432/2512) | 6.3 x 3.1 x 0.7 | 37.1 | 1.0W | -55+155 | 15.6M (E24) | 200V | 400V | 2%, 5% | 200, 400 | 4,000 (TP) |
| W3A2 (6432/2512) | 6.3 x 3.1 x 0.7 | 37.1 | 2.0W | -55+155 | 15.6M (E24) | 200V | 400V | 2%, 5% | 200, 400 | 4,000 (TP) |
Performance
| Test Item | Standard Value | Guaranteed Value | Test Method |
|---|---|---|---|
| Resistance Value | Within specified tolerance | - | 25 |
| Temperature Coefficient of Resistance | Within specified value | - | +25/-55, +25/+125 |
| Overload (Short-time) | 1 (1F), 0.5 (others) | - | 2.5x rated voltage for 5s (1E, 2B, W3A2: 2x rated voltage) |
| Soldering Heat Resistance | 0.5 (10R1M), 1 (R10, R1M) | - | 2605, 10s1s |
| Temperature Cycling | 1 (1F, Performance "A"), 0.5 (others) | 0.5 (1F, Performance "A"), 0.3 (others) | -55 (30min.)/+125 (30min.), 100 cycles (Performance "A": 1000 cycles) |
| Damp Heat Load | 2 (1J, 2A, 2B), 3 (others) | 0.75 (1J, 2A, 2B), 1 (others) | 402, 90%95%RH, 1000h (1.5h ON, 0.5h OFF cycle) |
| Endurance | 2 (1J, 2A, 2B), 3 (others) | 0.75 (1J, 2A, 2B), 1 (others) | 702 or rated terminal temp. 2, 1000h (1.5h ON, 0.5h OFF cycle) |
| High Temperature Storage | 1 (1F), 0.5 (others) | 0.3 (others) | +125, 1000h (1F); +155, 1000h (others) |
Power Derating Curves
Graphs showing power derating based on terminal temperature and ambient temperature are provided in the original document.
Temperature Rise Data
Graphs showing temperature rise under various conditions are provided in the original document.
Single Pulse Limiting Power Curves
Graphs showing single pulse limiting electric power versus pulse duration for different model groups are provided in the original document.
2403141437_KOA-RK73B1ETTP274J_C131553.pdf
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