Flat chip resistors KOA WK73R2BTTD1301F wide terminal type designed for power supply circuits and ECU
Product Overview
The WK73R series are wide terminal type flat chip resistors featuring high reliability and performance. They offer a resistance tolerance of 0.5% and a temperature coefficient of 10010-6/K. These resistors are suitable for both reflow and flow solderings and comply with EU-RoHS requirements. They are AEC-Q200 qualified and designed for applications such as power supply circuits and ECUs, particularly in automotive environments.
Product Attributes
- Brand: KOA
- Product Type: Flat Chip Resistors (Wide Terminal Type)
- Coating Color: Black
- Certifications: EU-RoHS compliant (excluding Pb-glass in electrode, resistor element, and glass), AEC-Q200 qualified
- Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
Technical Specifications
| Type | Size (Inch) | Dimensions (mm) L x W x t | Power Rating | Rated Ambient Temp. | Rated Terminal Part Temp. | T.C.R. (10-6/K) | Resistance Range () | Max. Working Voltage | Max. Overload Voltage | Taping & Q'ty/Reel (pcs) |
| WK73R1E | 0204 | 1.0 x 0.5 x 0.35 | 0.33W*1 | - | 125 | 100 | 101M | 75V | 100V | TP: 10,000 |
| WK73R1J | 0306 | 1.6 x 0.8 x 0.45 | 0.5W*1 | - | 125 | 100 | 101M | 150V | 200V | TD: 5,000 |
| WK73R2A | 0508 | 2.0 x 1.25 x 0.55 | 0.75W*1 | - | 125 | 100 | 20.5k1M | 200V | 400V | TD: 5,000 |
| WK73R2A | 0508 | 2.0 x 1.25 x 0.55 | 1W*1 | - | 125 | 100 | 1020k | 200V | 400V | TD: 5,000 |
| WK73R2B | 0612 | 3.2 x 1.6 x 0.6 | 0.75W | 70 | 125 | 100 | 101M | - | - | TP: 5,000 |
| WK73R2B | 0612 | 3.2 x 1.6 x 0.6 | 1W*1 | - | 115 | 100 | 109.76k | - | - | TP: 5,000 |
| WK73R2H | 1020 | 5.0 x 2.5 x 0.75 | 1W | 70 | 125 | 100 | 10430k | - | - | TE: 4,000 |
| WK73R2H | 1020 | 5.0 x 2.5 x 0.75 | 1W | 70 | 125 | 200 | 432k1M | - | - | TE: 4,000 |
| WK73R2J | 1218 | 4.6 x 3.1 x 0.4 | 1W | 70 | 100 | 100 | 10510k | - | - | TE: 4,000 |
| WK73R2J | 1218 | 4.6 x 3.1 x 0.4 | 1W | 70 | 100 | 200 | 511k1M | - | - | TE: 4,000 |
| WK73R3A | 1225 | 6.3 x 3.1 x 0.45 | 1.5W | 70 | 125 | 100 | 10330k | - | - | TE: 4,000 |
| WK73R3A | 1225 | 6.3 x 3.1 x 0.45 | 1.5W | 70 | 125 | 200 | 332k1M | - | - | TE: 4,000 |
| WK73R3A | 1225 | 6.3 x 3.1 x 0.45 | 2W*1 | - | 115 | 100 | 10330k | - | - | TE: 4,000 |
| WK73R3A | 1225 | 6.3 x 3.1 x 0.45 | 2W*1 | - | 115 | 200 | 332k1M | - | - | TE: 4,000 |
Note: Rated voltage is the lower of (Power RatingResistance value) or Max. working voltage. Refer to derating curves for usage at rated power of *1. Priority should be given to Rated Terminal Part Temperature over Rated Ambient Temperature if unsure.
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