THICK FILM CHIP RESISTORS RK73B
The RK73B series offers a robust lineup of thick film chip resistors, available in sizes from 0402 to 6432. These resistors feature a protective film made of metal glaze thick film, providing excellent heat and weather resistance. They are compatible with reflow and wave soldering processes and are RoHS compliant with lead-free terminals. AEC-Q200 data is available for most models (excluding 1F). These resistors are suitable for various applications including automotive, medical, and aerospace equipment, where reliability and performance are critical. They are designed to withstand demanding environmental conditions and thermal stress.
Product Attributes
- Brand: RK73B
- Material: Metal glaze thick film, Ceramic substrate
- Appearance Color: Black
- Certifications: EU RoHS compliant (excluding lead glass in electrodes and resistance film layer), AEC-Q200 (excluding 1F)
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x d x t | Weight (g/1000pcs) | Rated Power | Operating Temp. Range | Resistance Value Range () | Tolerance | Max. Operating Voltage | Max. Overload Voltage | Packaging (pcs/reel) |
| 1F (0402/01005) | 0.40.02 x 0.20.02 x 0.110.03 x 0.130.02 | 0.04 | 0.03W | -55+125 | 19.1 (250), 1091k (250), 100k1M (200), 100k10M (250) | 2%, 5% | 20V | 30V | 40,000 (TCM) |
| 1H (0603/0201) | 0.60.03 x 0.30.03 x 0.150.05 x 0.230.03 | 0.14 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | 2%, 5% | 25V | 50V | 15,000 (TBL/TCM) |
| 1E (1005/0402) | 1.00.1 x 0.50.05 x 0.250.05 x 0.350.05 | 0.68 | 0.1W | -55+155 | 110M (200) | 2%, 5% | 75V | 100V | 10,000 (TP) |
| 1J (1608/0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.450.1 | 2.14 | 0.1W | -55+155 | 1.1k10M (200), 11M22M (400) | 2%, 5% | - | - | 10,000 (TP) |
| 1J (1608/0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.450.1 | 2.14 | 0.125W | -55+155 | 11k (200) | 2%, 5% | - | - | 10,000 (TP) |
| 2A (2012/0805) | 2.00.2 x 1.250.1 x 0.30.2 x 0.50.1 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | 2%, 5% | 150V | 200V | 10,000 (TP) |
| 2B (3216/1206) | 3.20.2 x 1.60.2 x 0.40.2 x 0.60.1 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M10M (400), 6.2M22M (400) | 2%, 5% | 200V | 400V | 5,000 (TD) |
| 2E (3225/1210) | 3.20.2 x 2.60.2 x 0.40.2 x 0.60.1 | 15.5 | 0.5W | -55+155 | 105.6M (200), 6.2M10M (400) | 2%, 5% | - | - | 5,000 (TD) |
| W2H (5025/2010) | 5.00.2 x 2.50.2 x 0.650.15 x - | 24.3 | 0.75W | -55+155 | 105.6M (200), 6.2M22M (400) | 2%, 5% | - | - | 4,000 (TD) |
| W3A (6432/2512) | 6.30.2 x 3.10.2 x - x - | 37.1 | 1.0W | -55+155 | 105.6M (200), 6.2M22M (400) | 2%, 5% | 200V | 400V | 4,000 (TD) |
| W3A2 (6432/2512) | 6.30.2 x 3.10.2 x - x - | 37.1 | 2.0W | -55+95 | 105.6M (200), 6.2M22M (400) | 2%, 5% | 200V | 400V | 4,000 (TD) |
Performance Specifications
| Test Item | Test Method | Guaranteed Value | Representative Value |
| Resistance Value | - | Within specified tolerance | - |
| Temperature Coefficient of Resistance | 25 | Within specified value | - |
| Overload (Short time) | Apply 2.5 times rated voltage for 5 sec. (2 times for 1E, 2B, W3A2) | 1: 1F, 0.5: others | - |
| Resistance to Soldering Heat | 2605, 10s1s | 0.5: 1FW3A2 (10R1M), 1: 1FW3A2 (R10, R1M) | - |
| Temperature Cycling | -55 (30min.) / +125 (30min.), 100 cycles (1F, Performance "A"), 1000 cycles (others) | 1: 1F, 0.5: others (Standard), 1: 1F Performance "A", 0.3: others | - |
| Damp Heat Load | 402, 90%95%RH, 1000h (1.5h ON, 0.5h OFF cycle) | 2: 1J, 2A, 2B, 3: others | 0.75: 1J, 2A, 2B, 1.5: 1F, 1: others |
| Endurance | 702 or rated terminal temp. 2, 1000h (1.5h ON, 0.5h OFF cycle) | 2: 1J, 2A, 2B, 3: others | 0.75: 1J, 2A, 2B, 1: others |
| High Temperature Storage | +125, 1000h (1F), +155, 1000h (others) | 1 | 0.5: 1F, 0.3: others |
2403141437_KOA-RK73B2ETTD240J_C830172.pdf
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