THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors featuring a robust product lineup from 0402 to 6432 sizes. Constructed with a metal glaze thick film protective layer, these resistors offer excellent heat and weather resistance. They are compatible with reflow and wave soldering processes. The terminal lead-free products comply with EU RoHS directives, with lead glass contained in electrodes, resistance film layers, and glass being exempt. AEC-Q200 data is available for most models (excluding 1F). These resistors are suitable for a wide range of applications including automotive, medical, and aerospace equipment where safety and reliability are paramount.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Series: RK73B
- Structure: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Metal glaze thick film (protective layer), Ceramic substrate
- Certifications: EU RoHS compliant (exemptions apply), AEC-Q200 (except 1F)
- Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x d x t | Weight (g/1000pcs) | Rated Power (at 70C) | Operating Temp. Range | Resistance Value Range () | Max. Operating Voltage | Max. Overload Voltage | Resistance Tolerance | Temp. Coefficient (x10-6/K) | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4x0.2x0.11x0.13 | 0.04 | 0.03W | -55+125 | 19.1 (250), 1091k (250), 100k10M (200) | 20V | 30V | G:2%, J:5% | 200, 250, 0+300 | TCM: 15,000, TD: 40,000 |
| 1H (0603/0201) | 0.6x0.3x0.15x0.23 | 0.14 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | 25V | 50V | G:2%, J:5% | 200, 400 | TCM: 15,000 |
| 1E (1005/0402) | 1.0x0.5x0.25x0.35 | 0.68 | 0.1W | -55+155 | 110M (200), 110M (400) | 75V | 100V | G:2%, J:5% | 200, 400 | TPL: 20,000, TP: 10,000 |
| 1J (1608/0603) | 1.6x0.8x0.3x0.45 | 2.14 | 0.1W / 0.125W | -55+155 | 11k (0.125W, 200), 1.1k10M (0.1W, 200), 11M22M (0.1W, 400) | - | - | G:2%, J:5% | 200, 400 | TP: 10,000 |
| 2A (2012/0805) | 2.0x1.25x0.3x0.5 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | 150V | 200V | G:2%, J:5% | 200, 400 | TCM: 15,000, TP: 10,000, TD: 4,000 |
| 2B (3216/1206) | 3.2x1.6x0.4x0.6 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | G:2%, J:5% | 200, 400 | TP: 10,000, TD: 4,000 |
| 2E (3225/1210) | 3.2x2.5x0.4x0.6 | 15.5 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | - | - | G:2%, J:5% | 200, 400 | TP: 10,000, TD: 4,000 |
| W2H (5025/2010) | 5.0x2.5x0.65x- | 24.3 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | - | - | G:2%, J:5% | 200, 400 | TD: 4,000 |
| W3A (6432/2512) | 6.3x3.1x-x- | 37.1 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | G:2%, J:5% | 200, 400 | TD: 4,000 |
| W3A2 (6432/2512) | 6.3x3.1x-x- | 37.1 | 2.0W | -55+155 | 15.6M (200), 6.2M22M (400) | 200V | 400V | G:2%, J:5% | 200, 400 | TD: 4,000 |
Performance
| Test Item | Guarantee 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) | -55 (30min.)/+125 (30min.), 100 cycles (Standard), 1000 cycles (Performance "A") |
| Damp Heat Load | 2 (1J, 2A, 2B), 3 (others) | 402, 90%-95%RH, 1000h (1.5h ON, 0.5h OFF cycle) |
| Durability | 2 (1J, 2A, 2B), 3 (others) | 70 or rated terminal temp., 1000h (1.5h ON, 0.5h OFF cycle) |
| High Temperature Exposure | 1 (1F), 0.5 (others) | +125, 1000h (1F); +155, 1000h (others) |
2403141437_KOA-RK73B2ETTD161J_C830158.pdf
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