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Specifications
Power(Watts):
2W
Resistance:
16Ω
Voltage Rating:
200V
Temperature Coefficient:
±100ppm/℃
Operating Temperature:
-55℃~+155℃
Type:
Thick Film Resistor
Tolerance:
±5%
Mfr. Part #:
WK73R3ATTE160J
Package:
1225
Key Attributes
Model Number:
WK73R3ATTE160J
Product Description
Product Overview
The WK73R series are wide terminal type flat chip resistors featuring high reliability and performance with 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 meet EU-RoHS requirements. They are designed for applications such as power supply circuits, ECUs, and automotive-related systems.
Product Attributes
- Brand: KOA
- Product Type: Flat Chip Resistors (Wide Terminal Type)
- Coating Color: Black
- Certifications: EU-RoHS compliant, AEC-Q200 qualified
- Reference Standards: IEC 60115-8, JIS C 5201-8, EIAJ RC-2134C
- Environmental Information: Contact for details on environmental hazardous materials beyond EU-RoHS.
Technical Specifications
| Type | Nominal Resistance | Resistance Tolerance | Power Rating | T.C.R. (10-6/K) | Max. Working Voltage | Max. Overload Voltage | Taping & Q'ty/Reel (pcs) | Operating Temperature Range |
| WK73R1E | 101M | D: 0.5%, F: 1% | 0.33W1 | 100 | 75V | 100V | TP: 10,000 | -55+155 |
| WK73R1J | 101M | D: 0.5%, F: 1% | 0.5W1 | 100 | 150V | 200V | TD: 5,000 | |
| WK73R2A | 20.5k1M (D) / 22k1M (F) | D: 0.5%, F: 1% | 0.75W1 | 100 | 200V | 400V | TD: 5,000 | |
| WK73R2B | 101M | D: 0.5%, F: 1%, J: 5% | 0.75W / 1W1 | 100 | - | - | TE: 5,000 | 70 / 115 |
| WK73R2H | 10430k (D) / 470k1M (F) | D: 0.5%, F: 1% | 1W | 100 / 200 | - | - | TD: 4,000 | 70 |
| WK73R2J | 10510k (D) / 560k1M (F) | D: 0.5%, F: 1% | 1W | 100 / 200 | - | - | TD: 4,000 | 70 |
| WK73R3A | 10330k (D) / 360k1M (F) | D: 0.5%, F: 1% | 1.5W / 2W1 | 100 / 200 | - | - | TE: 4,000 | 70 / 115 |
| Test Items | Performance Requirements | Limit | Typical | Test Methods |
| Resistance | Within specified tolerance | - | - | At 25 |
| T.C.R. | Within specified T.C.R. | - | - | +25/55 and +25/125 |
| Overload (Short time) | R(2% + 0.005 ) (for 1E, 2A, 2B, 3A) / R(2% + 0.005 ) (for 1E, 2A, 2B, 3A) | 2 | 0.2 | Rated voltage2.5 for 5s / Rated voltage2.0 for 5s |
| Resistance to soldering heat | R1% | 1 | 0.2 | 2605, 10s1s |
| Terminal strength (Bending test) | R0.1% | 1 | 0.1 | Holding point 90mm, Bending 1time. Bending 5mm |
| Rapid change of temperature | R0.5% | 0.5 | 0.3 | -55 (30min.) /+125 (30min.) 100 cycles |
| Moisture resistance | R3% (for 1E) / R2% (for others) | 3:1E, 2:another | 1:1E, 0.2:another | 402, 90%95%RH, 1000h (1.5h ON/0.5h OFF cycle) |
| Endurance at 70 | R3% (for 1E) / R2% (for others) | 3:1E, 2:another | 1:1E, 0.2:another | 702, 1000h (1.5h ON/0.5h OFF cycle) |
| High temperature exposure | R1% | 1 | 0.2 | +155, 1000h |
2409300002_KOA-WK73R3ATTE160J_C340331.pdf
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