Product Overview
The RK73H series of Flat Chip Resistors are high-reliability thick film precision resistors designed for demanding applications. They feature a small size, light weight, excellent heat and weather resistance due to their metal glaze thick film construction, and a stable triple-layer electrode structure. These resistors are suitable for automated mounting and soldering processes and comply with EU-RoHS requirements for lead-free terminations. They are ideal for automotive, medical, and aerospace equipment where failure could lead to serious damage or loss of life. AEC-Q200 qualification is available for most models.
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 termination), AEC-Q200 qualified (except 1F)
- Origin: Japan (implied by company name and language)
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x c x d x t | Weight (g/1000pcs) | Power Rating | Rated Ambient Temp. | Rated Terminal Part Temp. | T.C.R. (10-6/K) | Resistance Range () | Max. Working Voltage | Max. Overload Voltage | Packaging & Q'ty/Reel (pcs) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (01005) | 0.40.02 x 0.20.02 x 0.100.03 x 0.110.03 x 0.130.02 | 0.04 | 0.03W | 70 | 200 (+250 for 10-91k) | 100k1M4 (200) / 1091k4 (250) | 20V | 30V | 40,000 / 20,000 | |
| 1H (0201) | 0.60.03 x 0.30.03 x 0.10.05 x 0.150.05 x 0.230.03 | 0.14 | 0.05W | 70 | 200 (400 for 1-9.1) | 101M (200) / 1010M4 (400) / 19.14 (400) | 25V | 50V | 35,000 / 10,000 / 15,000 | |
| 1E (0402) | 1.0+0.1-0.05 x 0.50.05 x 0.20.1 x 0.25+0.05-0.1 x 0.350.05 | 0.68 | 0.1W | 70 | 125 | 100 (200 for 1-9.76) | 101M (100) / 101M (200) / 1.02M10M (200) | 75V | 100V | 20,000 / 10,000 |
| 1J (0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1 | 2.14 | 0.1W / 0.125W | 70 | 125 | 100 (200 for 1-9.76) | 1.02k1M (100) / 101k (100) / 1.02k1M (200) / 101k (200) / 1.02M10M (200) | 10,000 / 5,000 | ||
| 2A (0805) | 2.00.2 x 1.250.1 x 0.40.2 x 0.3+0.2-0.1 x 0.50.1 | 4.54 | 0.25W | 70 | 125 | 100 (200 for 1-9.76, 400 for 1.02M-10M) | 101M (100) / 101M (200) / 19.76 (200) / 1.02M10M (400) | 150V | 200V | 10,000 / 5,000 / 4,000 |
| 2B (1206) | 3.20.2 x 1.60.2 x 0.50.3 x 0.4+0.2-0.1 x 0.60.1 | 9.14 | 0.25W | 70 | 125 | 100 (200 for 1-9.76, 400 for 5.62M-10M) | 101M (100) / 101M (200) / 19.76 (200) / 1.02M5.6M (400) / 5.62M10M (400) | 200V | 400V | 5,000 / 4,000 |
| 2E (1210) | 2.60.2 x 15.5 (Likely typo, should be dimensions like others) | 0.5W | 70 | 125 | 100 (200 for 1-9.76, 400 for 5.62M-10M) | 101M (100) / 101M (200) / 19.76 (200) / 1.02M5.6M (400) / 5.62M10M (400) | 5,000 / 4,000 | |||
| W2H (2010) | 5.00.2 x 2.50.2 x 0.650.15 | 24.3 | 0.75W | 70 | 125 | 100 (200 for 1-9.76, 400 for 5.62M-10M) | 101M (100) / 101M (200) / 19.76 (200) / 1.02M5.6M (400) / 5.62M10M (400) | 4,000 | ||
| W3A (2512) | 6.30.2 x 3.10.2 | 37.1 | 1W | 70 | 125 | 100 (200 for 1-9.76, 400 for 5.62M-10M) | 101M (100) / 101M (200) / 19.76 (200) / 1.02M5.6M (400) / 5.62M10M (400) | 200V (500V5) | 400V (500V5) | 4,000 |
| W3A2 (2512) | 6.30.2 x 3.10.2 | 37.1 | 2W | 95 | 100 (200 for 1-9.76, 400 for 5.62M-10M) | 101M (100) / 101M (200) / 19.76 (200) / 1.02M5.6M (400) / 5.62M10M (400) | 200V | 400V | 4,000 |
Note: Dimensions for 2E, W2H, W3A, W3A2 are incomplete in the source for L, W, c, d, t. The 'd' dimension for W2H, W3A, W3A2 differs when corresponding to RK73H 2H, 3A, 3A2. Consult the source for full details on packaging and specific resistance ranges.
2410121533_KOA-RK73H1ETTP1020F_C316917.pdf
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