THICK FILM CHIP RESISTORS RK73B
The RK73B series are thick film chip resistors designed for a wide range of applications. Featuring a robust construction with a metal glaze thick film for excellent heat and weather resistance, these resistors are suitable for reflow and wave soldering. They are available in a comprehensive size range from 0402 to 6432. The terminal lead-free products comply with EU RoHS directives. AEC-Q200 data is available for most models.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Construction: Metal glaze thick film
- Appearance Color: Black
- Certifications: EU RoHS compliant (excluding lead glass in electrodes, resistance film, and glass), AEC-Q200 (except 1F)
- Material: Ceramic substrate
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x t | Weight (g/1000pcs) | Rated Power (at 70C) | Operating Temp. Range | Resistance Value Range () | Tolerance | Max. Operating Voltage | Max. Overload Voltage | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4 x 0.2 x 0.13 | 0.04 | 0.03W | -55+125 | 19.1k (250), 100k10M (200) | J:5%, G:2% | 20V | 30V | 40,000 (TCM) |
| 1H (0603/0201) | 0.6 x 0.3 x 0.23 | 0.14 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | J:5%, G:2% | 25V | 50V | 15,000 (TBL/TCM) |
| 1E (1005/0402) | 1.0 x 0.5 x 0.35 | 0.68 | 0.1W | -55+155 | 110M (200) | J:5%, G:2% | 75V | 100V | 10,000 (TP) / 20,000 (TPL) |
| 1J (1608/0603) | 1.6 x 0.8 x 0.45 | 2.14 | 0.1W / 0.125W | -55+155 | 11k (0.125W, 200), 1.1k22M (0.1W, 200/400) | J:5%, G:2% | - | - | 10,000 (TP) |
| 2A (2012/0805) | 2.0 x 1.25 x 0.5 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | J:5%, G:2% | 150V | 200V | 10,000 (TP) / 5,000 (TD) |
| 2B (3216/1206) | 3.2 x 1.6 x 0.6 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | J:5%, G:2% | 200V | 400V | 5,000 (TP) / 4,000 (TD) |
| 2E (3225/1210) | 3.2 x 2.5 x 0.6 | 15.5 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | J:5%, G:2% | - | - | 5,000 (TP) / 4,000 (TD) |
| W2H (5025/2010) | 5.0 x 2.5 x 0.65 | 24.3 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | J:5%, G:2% | - | - | 4,000 (TD) |
| W3A (6432/2512) | 6.3 x 3.1 x 0.6 | 37.1 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | J:5%, G:2% | 200V | 400V | 4,000 (TD) |
| W3A2 (6432/2512) | 6.3 x 3.1 x 0.4 | 37.1 | 2.0W | -55+155 | 15.6M (200), 6.2M22M (400) | J:5%, G:2% | 200V | 400V | 4,000 (TD) |
Performance
| Test Item | Guaranteed Value | Typical 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 (2x for 1E, 2B, W3A2) |
| Resistance to Soldering Heat | 0.5 (10R1M), 1 (R<10, R>1M) | - | 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 (Standard), 1000 cycles (Performance "A") |
| Damp Heat Load | 2 (1J, 2A, 2B), 3 (others) | 0.75 (1J, 2A, 2B), 1 (others), 1.5 (1F) | 402, 90%-95%RH, 1000h (1.5h ON, 0.5h OFF cycle) |
| Durability | 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 | 0.5 (1F), 0.3 (others) | +125, 1000h (1F); +155, 1000h (others) |
Power Derating Curves
Refer to the provided graphical data for power derating based on terminal temperature and ambient temperature for various model series.
Temperature Rise Data
Refer to the provided graphical data for temperature rise at different power ratings for various model series.
Single Pulse Limiting Power Curve
Refer to the provided graphical data for single pulse limiting electric power versus pulse duration for RK73B 1F-2A and RK73B 2B-W3A2 series.
2403141437_KOA-RK73B1ETTP620J_C131608.pdf
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