Metal glaze thick film chip resistor KOA RK73H1ETTP1R65F with excellent weather and heat resistance
THICK FILM CHIP RESISTORS RK73H
The RK73H series of thick film chip resistors are precision-grade, rectangular surface mount devices designed for high reliability and performance. They feature a small, lightweight construction with excellent heat and weather resistance due to their metal glaze thick film protective coating. The three-layer electrode structure ensures stability and robustness. These resistors are compatible with various automatic mounting machines and soldering processes, including reflow and wave soldering. They are RoHS compliant, with lead-free terminals, and AEC-Q200 data is available for most models. Applications include automotive, medical, and aerospace equipment where safety and reliability are paramount.
Product Attributes
- Brand: KOA
- Product Type: Thick Film Chip Resistors
- Series: RK73H
- Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
- Certifications: AEC-Q200 (excluding 1F), EU RoHS compliant (terminals lead-free)
- Material: Metal glaze thick film
Technical Specifications
| Model (Size Code) | Dimensions (mm) L x W | Weight (g/1000pcs) | Rated Power | Rated Environmental Temp. | Rated Terminal Temp. | Resistance Temp. Coefficient (x10^-6/K) | Resistance Value Range | Max. Operating Voltage | Max. Overload Voltage | Packaging (pcs/reel) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (0402) | 0.40.02 x 0.20.02 | 0.04 | 0.03W | 70 | - | 200, 250 | 10~91k (E24), 100k~2M (E96)4 | 20V | 30V | TX:40,000, TBL:20,000 |
| 1H (0603) | 0.60.03 x 0.30.03 | 0.14 | 0.05W | 70 | 125 | 200, 400 | 10~1M, 10~10M4 (E24/E96) | 25V | 50V | TC:10,000, TCM:15,000 |
| 1E (1005) | 1.00.1 x 0.50.05 | 0.68 | 0.1W | 70 | 125 | 100, 200 | 10~1M, 1.02M~10M (E24/E96) | 75V | 100V | TPL:20,000, TP:10,000 |
| 1J (1608) | 1.60.2 x 0.80.1 | 2.14 | 0.1W | 70 | 125 | 100, 200 | 1.02k~1M, 1.02M~10M (E24/E96) | - | - | TP:10,000, 5,000 |
| (0.125W) | 0.125W | 100, 200 | 10~1k, 1~9.76 (E24/E96) | |||||||
| 2A (2012) | 2.00.2 x 1.250.1 | 4.54 | 0.25W | 70 | 125 | 100, 200, 400 | 10~1M, 1~9.76, 1.02M~10M (E24/E96) | 150V | 200V | TP:10,000, 5,000, 4,000 |
| 2B (3216) | 3.20.2 x 1.60.2 | 9.14 | 0.25W | 70 | 125 | 100, 200, 400 | 10~1M, 1~9.76, 1.02M~5.6M, 5.62M~10M (E24/E96) | 200V | 400V | 5,000, 4,000 |
| 2E (3225) | 2.60.2 x 2.50.2 | 15.5 | 0.5W | 70 | 125 | 100, 200, 400 | 10~1M, 1~9.76, 1.02M~5.6M, 5.62M~10M (E24/E96) | - | - | 5,000, 4,000 |
| W2H (5025) | 5.00.2 x 2.50.2 | 24.3 | 0.75W | 70 | 125 | 100, 200, 400 | 10~1M, 1~9.76, 1.02M~5.6M, 5.62M~10M (E24/E96) | - | - | 4,000 |
| W3A (6432) | 6.30.2 x 3.10.2 | 37.1 | 1W | 70 | 125 | 100, 200, 400 | 10~1M, 1~9.76, 1.02M~5.6M, 5.62M~10M (E24/E96) | 200V | 400V | 4,000 |
| W3A2 (6432) | 6.30.2 x 3.10.2 | 2W5 | 70 | 95 | 100, 200, 400 | 10~1M, 1~9.76, 1.02M~5.6M, 5.62M~10M (E24/E96) | 200V | 400V | 4,000 |
Performance
| Test Item | Standard Value R(0.1) | Guaranteed Value | Representative Value | Test Method |
|---|---|---|---|---|
| Resistance Value | Within specified tolerance | - | 25 | |
| Resistance Temperature Coefficient | Within specified value | - | +25/-55, +25/+125 | |
| Overload (Short time) | 1 (1F), 0.5 (others) | Apply 2.5x rated voltage for 5s (2x for 1E, 2B, W3A2) | ||
| Endurance to Soldering Heat | 0.5 (10R1M), 1 (R1M) | 1 (10R1M), 3 (R1M) | 2605, 10s1s | |
| Temperature Cycling | 0.5 (1F), 0.3 (others) | 1 (1F), 0.5 (others) | -55(30min.)/+125(30min.) 100 cycles | |
| Damp Heat Load | 0.75 (1J, 2A, 2B), 1 (others) | 2 (1J, 2A, 2B), 3 (others) | 402, 90%~95%RH, 1000h (1.5h ON, 0.5h OFF cycle) | |
| Durability at 70 or Rated Terminal Temp. | 0.75 (1J, 2A, 2B), 1 (others) | 2 (1J, 2A, 2B), 3 (others) | 702 or Rated Terminal Temp.2, 1000h (1.5h ON, 0.5h OFF cycle) | |
| High Temperature Storage | 0.5 (1F), 0.3 (others) | 1 | +125, 1000h (1F); +155, 1000h (others) |
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