Product Overview
The RK73H series of Flat Chip Resistors are precision-grade thick film resistors designed for high reliability and stability. They feature a small size, light weight, and excellent heat and weather resistance due to their metal glaze thick film construction. The triple-layer electrode structure ensures high reliability, making them suitable for various automatic mounters and soldering processes. These resistors are RoHS compliant, with lead-free terminations. They are qualified for AEC-Q200 (except for the 1F type) and are recommended for automotive, medical, and aerospace equipment, provided prior contact with the manufacturer is made for such critical applications.
Product Attributes
- Brand: KOA
- Product Type: Flat Chip Resistors (Precision Grade)
- Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
- Certifications: EU RoHS compliant (lead-free terminations), AEC-Q200 qualified (Exemption 1F)
- Material: Thick Film (Precision)
- Origin: Japan (implied by manufacturer information)
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L | Dimensions (mm) W | Dimensions (mm) c | Dimensions (mm) d | Dimensions (mm) t | Weight (g) (1000pcs) | Power Rating | Rated Ambient Temp. | Rated Terminal Part Temp. | Resistance Range () | Max. Working Voltage | Max. Overload Voltage | T.C.R. (10 -6/K) | Packaging & Q'ty/Reel (pcs) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1F (01005) | 0.40.02 | 0.20.02 | 0.100.03 | 0.110.03 | 0.130.02 | 0.04 | 0.03W | 70 | 100k1M4 | 20V | 30V | 200, 250 | 40,000 | |
| 1H (0201) | 0.60.03 | 0.30.03 | 0.10.05 | 0.150.05 | 0.230.03 | 0.14 | 0.05W | 70 | 101M, 1010M4, 19.14 | 25V | 50V | 200, 400 | 35,000 | |
| 1E (0402) | 1.0 +0.1 0.05 | 0.50.05 | 0.20.1 | 0.25 +0.05 0.1 | 0.350.05 | 0.68 | 0.1W | 70 | 125 | 101M, 101M, 19.76, 1.02M10M | 75V | 100V | 100, 200 | 20,000 |
| 1J (0603) | 1.60.2 | 0.80.1 | 0.30.1 | 0.30.1 | 0.450.1 | 2.14 | 0.1W | 70 | 125 | 1.02k1M, 1.02k1M, 1.02M10M | 100, 200 | 10,000, 5,000 | ||
| 1J (0603) | 1.60.2 | 0.80.1 | 0.30.1 | 0.30.1 | 0.450.1 | 2.14 | 0.125W | 70 | 125 | 101k, 101k, 19.76 | 100, 200 | 10,000, 5,000 | ||
| 2A (0805) | 2.00.2 | 1.250.1 | 0.40.2 | 0.3 +0.2 0.1 | 0.50.1 | 4.54 | 0.25W | 70 | 125 | 101M, 101M, 19.76, 1.02M10M | 150V | 200V | 100, 200, 400 | 10,000, 5,000, 4,000 |
| 2B (1206) | 3.20.2 | 1.60.2 | 0.50.3 | 0.4 +0.2 0.1 | 0.60.1 | 9.14 | 0.25W | 70 | 125 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 200V | 400V | 100, 200, 400 | 5,000, 4,000 |
| 2E (1210) | 2.60.2 | 15.5 | 0.5W | 70 | 125 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 100, 200, 400 | 5,000, 4,000 | ||||||
| W2H (2010) 1 | 5.00.2 | 2.50.2 | 0.650.15 | 24.3 | 0.75W | 70 | 125 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 100, 200, 400 | 4,000 | ||||
| W3A (2512) 1 | 6.30.2 | 3.10.2 | 37.1 | 1W | 70 | 125 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 200V (500V5) | 400V (500V5) | 100, 200, 400 | 4,000 | |||
| W3A2 (2512) 1 | 6.30.2 | 3.10.2 | 37.1 | 2W | 95 | 101M, 101M, 19.76, 1.02M5.6M, 5.62M10M | 200V | 400V | 100, 200, 400 | 4,000 |
Performance
| Test Items | Standard Value (Limit) | Typical Value | Test Methods |
|---|---|---|---|
| Resistance | Within specified tolerance | ||
| Resistance Temperature Coefficient T.C.R. | Within specified T.C.R. | -25/+25/-55 and +25/+125 | |
| Overload (Short time) | 2 (1:1F, 0.5:another) | 1 (1:1F, 0.5:another) | Rated voltage 2.5 for 5s (1E, 2B, W3A2Rated voltage2 for 5s) |
| Resistance to soldering heat | 1 (1FW3A, 10R1M) 3 (1HW3A, R<10, R>1M) | 0.5 (1FW3A, 10R1M) 1 (1HW3A, R<10, R>1M) | 2605, 10s1s |
| Rapid change of temperature | 1 (1F) 0.5 (another) | 0.5 (1F) 0.3 (another) | -55 (30min.) /+125 (30min.) 100 cycles |
| Moisture resistance | 2 (1J, 2A, 2B) 3 (another) | 0.75 (1J, 2A, 2B) 1 (1F, 1H, 1E, 2E, W2H, W3A, W3A2) 1.5 (1F) | 402, 90%95%RH, 1000h (1.5h ON/0.5h OFF cycle) |
| Endurance at 70 | 2 (1J, 2A, 2B) 3 (another) | 0.75 (1J, 2A, 2B) 1 (1F, 1H, 1E, 2E, W2H, W3A, W3A2) 1.5 (1F) | 702, 1000h (1.5h ON/0.5h OFF cycle) |
| High temperature exposure | 1 | 0.5 (1F) 0.3 (another) | +125, 1000h (1F); +155, 1000h (1H,1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2) |
2410121533_KOA-RK73H2ATTD1201F_C317262.pdf
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