Robust Thick Film Chip Resistors KOA RK73B2ETTD111J Designed for Reflow and Wave Soldering Processes
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 broad range of sizes from 0402 to 6432, with lead-free terminals compliant with EU RoHS directives (excluding lead glass in electrodes and resistive film layers). AEC-Q200 data is available for most models.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Construction: Rectangular Chip Resistor
- Appearance Color: Black
- Material: Ceramic Substrate, Metal Glaze Thick Film, Protection Film
- Terminal Material: Sn (Tin), Au (Gold)3, Sn/Pb (Tin/Lead)4
- Certifications: EU RoHS Compliant (Lead glass in electrodes and resistive film layers exempt), AEC-Q200 (excluding 1F)
- Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W x t | Rated Power (at 70) | Operating Temp. Range | Resistance Range () | Tolerance | Max. Operating Voltage | Max. Overload Voltage | Weight (g/1000pcs) |
|---|---|---|---|---|---|---|---|---|
| 1F (0402/01005) | 0.4 x 0.2 x 0.13 | 0.03W | -55+125 | 19.1k (250), 10k10M (200) | G:2%, J:5% | 20V | 30V | 0.04 |
| 1H (0603/0201) | 0.6 x 0.3 x 0.23 | 0.05W | -55+155 | 19.1 (400), 1010M (200) | G:2%, J:5% | 25V | 50V | 0.14 |
| 1E (1005/0402) | 1.0 x 0.5 x 0.35 | 0.1W | -55+155 | 110M (200) | G:2%, J:5% | 75V | 100V | 0.68 |
| 1J (1608/0603) | 1.6 x 0.8 x 0.45 | 0.1W | -55+155 | 1.1k10M (200), 11M22M (400) | G:2%, J:5% | - | - | 2.14 |
| 1J (0.125W) | 1.6 x 0.8 x 0.45 | 0.125W | -55+155 | 11k (200) | G:2%, J:5% | - | - | 2.14 |
| 2A (2012/0805) | 2.0 x 1.25 x 0.5 | 0.25W | -55+155 | 11M (200), 1.1M10M (400) | G:2%, J:5% | 150V | 200V | 4.54 |
| 2B (3216/1206) | 3.2 x 1.6 x 0.6 | 0.25W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | 9.14 |
| 2E (3225/1210) | 3.2 x 2.5 x 0.6 | 0.5W | -55+155 | 15.6M (200), 6.2M10M (400) | G:2%, J:5% | - | - | 15.5 |
| W2H (5025/2010) | 5.0 x 2.5 x 0.65 | 0.75W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | - | - | 24.3 |
| W3A (6432/2512) | 6.3 x 3.1 x 0.6 | 1.0W | -55+155 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | 37.1 |
| W3A2 (6432/2512) | 6.3 x 3.1 x 0.4 | 2.0W | -55+95 | 15.6M (200), 6.2M22M (400) | G:2%, J:5% | 200V | 400V | 37.1 |
Performance
| Test Item | Test Method | Guaranteed Value | Representative Value |
|---|---|---|---|
| Resistance Value | - | Within specified tolerance | 25 |
| Temperature Coefficient of Resistance | - | Within specified value | +25/-55, +25/+125 |
| Overload (Short time) | Apply 2.5 times rated voltage for 5 sec. (2 times for 1E, 2B, W3A2) | 1: 1F, 0.5: others | - |
| Soldering Heat Resistance | 2605, 10s1s | 1: 1FW3A2 (10R1M), 3: others | 0.5: 1FW3A2 (10R1M), 1: others |
| Temperature Cycling | -55 (30min.)/+125 (30min.), 100 cycles (1F, Performance "A"), 1000 cycles (others) | 1: 1F, Performance "A" (HS resistant), 0.5: others | 0.5: 1F, Performance "A" (HS resistant), 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 |
| Durability | 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 |
Power Derating Curves
Refer to the provided graphs for power derating based on terminal temperature and ambient temperature. Specific curves are shown for different model groups.
Temperature Rise Data
Refer to the provided graphs for temperature rise data under various power ratings and conditions.
Single Pulse Limiting Power Curve
Refer to the provided graphs for single pulse limiting electric power based on pulse duration for different model groups.
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