THICK FILM CHIP RESISTORS RK73B
The RK73B series of thick film chip resistors offers a robust product lineup from 0402 to 6432 sizes. Featuring a metal glaze thick film for excellent heat and weather resistance, these resistors are suitable for reflow and wave soldering. They are RoHS compliant with lead-free terminals, and leaded glass in electrodes, resistance film, and glass is exempt from EU RoHS. AEC-Q200 data is available for most models. These resistors are ideal for various applications including automotive, medical, and aerospace equipment where safety and reliability are paramount.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Structure: Rectangular Chip Resistors
- Appearance Color: Black
- Material: Ceramic Substrate, Metal Glaze Thick Film
- Certifications: AEC-Q200 (except 1F), EU RoHS compliant
- Terminal Material: T:Sn, G:Au (3), L:Sn/Pb (4)
- Special Features: Heat Shock Resistance (2) available for 1E, 1J, 2A, 2B with terminal material T.
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 | 19.1k (250), 100k10M (200) | G:2%, J:5% | 20V | 30V | TCM: 40,000, TBL: 20,000 |
| 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) | G:2%, J:5% | 25V | 50V | TCM: 15,000 |
| 1E (1005/0402) | 1.0(+0.1/-0.05) x 0.50.05 x 0.25(+0.05/-0.1) x 0.350.05 | 0.68 | 0.1W | -55+155 | 110M (200) | G:2%, J:5% | 75V | 100V | TPL: 20,000, TP: 10,000 |
| 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) | G:2%, J:5% | - | - | TP: 10,000 |
| 0.125W Series | - | - | 0.125W | -55+155 | 11k (200) | G:2%, J:5% | - | - | - |
| 2A (2012/0805) | 2.00.2 x 1.250.1 x 0.3(+0.2/-0.1) x 0.50.1 | 4.54 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | G:2%, J:5% | 150V | 200V | TCM: 10,000, TBL: 5,000, TD: 4,000 |
| 2B (3216/1206) | 3.20.2 x 1.60.2 x 0.4(+0.2/-0.1) x 0.60.1 | 9.14 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | TCM: 5,000, TBL: 4,000 |
| 2E (3225/1210) | 3.20.2 x 2.60.2 x 0.4(+0.2/-0.1) x 0.60.1 | 15.5 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | G:2%, J:5% | - | - | TCM: 5,000, TBL: 4,000 |
| W2H (5025/2010) | 5.00.2 x 2.50.2 x 0.650.15 x - | 24.3 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | - | - | TCM: 4,000 |
| W3A (6432/2512) | 6.30.2 x 3.10.2 x - x - | 37.1 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | TCM: 4,000 |
| W3A2 (6432/2512) 1 | 6.30.2 x 3.10.2 x 0.4(+0.2/-0.1) x - | 37.1 | 2.0W5 | -55+95 (Terminal) | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | TCM: 4,000 |
Performance
| Test Item | Standard Value | Guaranteed Value | Test Method |
|---|---|---|---|
| Resistance Value | Within specified tolerance | R(%) + 0.1 | 25 |
| Resistance Temperature Coefficient | 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) |
| Resistance to Soldering Heat | 1:1FW3A2 (10R1M), 3:others | 0.5:1FW3A2 (10R1M), 1:others | 2605, 10s1s |
| Temperature Cycling | 1:1F, Performance "A" (Heat Shock) / 0.5:others | 0.5:1F, Performance "A" (Heat Shock) / 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 / 0.5:1F / 0.3:others | - | +125, 1000h (1F); +155, 1000h (others) |
Power Derating Curve
Graphs showing power derating based on terminal temperature and ambient temperature are provided. Please refer to the full datasheet for visual representation.
Temperature Rise Data
Data on temperature rise for various models under specific measurement conditions (Room temp: 25, Substrate: FR-4 t=1.6mm, Cu foil: 35m) is available.
Single Pulse Limiting Power Curve
Curves illustrating the single pulse limiting electric power versus pulse duration for different model series are available.
2403141437_KOA-RK73B1ETTP680J_C131615.pdf
Please Use Our Online Inquiry Contact Form Below If You Have Any Questions, Our Team Will Get Back To You As Soon As Possible
