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Specifications
Power(Watts):
500mW
Resistance:
249Ω
Voltage Rating:
200V
Temperature Coefficient:
±100ppm/℃
Operating Temperature:
-55℃~+155℃
Type:
Thick Film Resistor
Tolerance:
±1%
Mfr. Part #:
RK73H2ETTD2490F
Package:
1210
Key Attributes
Model Number:
RK73H2ETTD2490F
Product Description
RK73H Precision Thick Film Chip Resistor
The RK73H series of precision thick film chip resistors offers 0.5% and 1% tolerance, meeting EU RoHS requirements with lead-free terminations. These resistors are AEC-Q200 tested and suitable for various applications requiring reliable performance and tight tolerances.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS compliant, AEC-Q200 tested
- Construction: Thick film on ceramic substrate with protective coating, inner electrode, resistive film, and Sn plating (Ni plating for some versions)
Technical Specifications
| Type/Size Code | Dimensions (mm) L x W x T | Power Rating (W) | Resistance Range () | Tolerance (%) | T.C.R. (x10/K) | Max. Working Voltage (V) |
|---|---|---|---|---|---|---|
| 1F (01005) | 0.4 x 0.2 x 0.1 | 0.03 | 10 - 1M | 0.5, 1 | 250 | 20 |
| 1H (0201) | 0.6 x 0.3 x 0.15 | 0.05 | 10 - 1M | 0.5, 1 | 200 | 25 |
| 1E (0402) | 1.0 x 0.5 x 0.25 | 0.1 | 10 - 1M | 0.5, 1 | 200 | 50 |
| 1J (0603) | 1.6 x 0.8 x 0.4 | 0.125 | 10 - 1M | 0.5, 1 | 200 | 75 |
| 2A (0805) | 2.0 x 1.25 x 0.5 | 0.25 | 10 - 1M | 0.5, 1 | 200 | 100 |
| 2B (1206) | 3.2 x 1.6 x 0.55 | 0.25 | 10 - 1M | 0.5, 1 | 200 | 150 |
| 2E (1210) | 3.2 x 2.5 x 0.65 | 0.5 | 10 - 1M | 0.5, 1 | 200 | 200 |
| 2H/W2H (2010) | 5.0 x 2.5 x 0.75 | 0.75 | 10 - 1M | 0.5, 1 | 200 | 200 |
| 3A/W3A (2512) | 6.3 x 3.1 x 0.8 | 1.0 | 10 - 1M | 0.5, 1 | 200 | 400 |
| W3A2 (2512) | 6.3 x 3.1 x 0.8 | 2.0 | 10 - 1M | 0.5, 1 | 200 | 400 |
Performance Characteristics
| Parameter | Requirement | Test Method |
|---|---|---|
| Resistance T.C.R. | Within specified tolerance | |
| Overload (Short time) | 2% (1%: 1F; 0.5%: Others) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) |
| Resistance to Soldering Heat | 1% (1F ~ W3A2, 10R1M); 3% (1H ~ W3A2, R<10, R>1M) 0.5% (1F ~ W3A2, 10 | 260C 5C, 10 seconds 1 second |
| Rapid Change of Temperature | 1% (1F); 0.5% (Others) 0.5% (1F); 0.3% (Others) | -55C (30 min), +125C (30 min), 100 cycles |
| Moisture Resistance | 2% (1J, 2A, 2B); 3% (Others) 0.75% (1J, 2A, 2B); 1.5% (1F); 1% (Others) | 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle |
| Endurance at 70C | 2% (1J, 2A, 2B); 3% (Others) 0.75% (1J, 2A, 2B); 1% (Others) | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle |
| High Temperature Exposure | 1% (1F); 0.5% (Others) 0.5% (1F); 0.3% (Others) | +125C, 1000 hours (1F); +155C, 1000 hours (1E, 1H, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2) |
2410121546_KOA-RK73H2ETTD2490F_C2480630.pdf
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