Product Overview
The RK73H series are high-reliability thick film flat chip resistors (precision grade) designed for various applications. They offer small size, light weight, excellent heat and weather resistance due to their metal glaze thick film construction. The triple-layer electrode structure ensures high stability and reliability. These resistors are suitable for automatic mounters and compatible with both flow and reflow soldering. They feature lead-free terminations and comply with EU-RoHS requirements. Some models are AEC-Q200 qualified.
Product Attributes
- Brand: KOA
- Product Type: Flat Chip Resistors (Precision Grade)
- Construction: Thick Film
- Coating Color: Black (1F, 1H), Blue (1E, 1J, 2A, 2B, 2E, W2H, W3A, W3A2)
- Certifications: EU-RoHS compliant (lead-free termination), AEC-Q200 qualified (Exemption 1F)
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x c x d x t | Weight (1000pcs) | Product Code | 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 | RK73H | 0.03W | 70 | 200 | 100k2M4 | 20V | 30V | 40,000 | |
| 1H (0201) | 0.60.03 x 0.30.03 x 0.10.05 x 0.150.05 x 0.230.03 | 0.14 | RK73H | 0.05W | 70 | 125 | 200 | 101M | 25V | 50V | 10,000 (TC) / 15,000 (TCM) |
| 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 | RK73H | 0.1W | 70 | 125 | 100 | 101M | 75V | 100V | 20,000 (TPL) / 10,000 (TP) |
| 1J (0603) | 1.60.2 x 0.80.1 x 0.30.1 x 0.30.1 x 0.450.1 | 2.14 | RK73H | 0.1W | 70 | 125 | 100 | 1.02k1M | 10,000 (TP) | ||
| 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 | RK73H | 0.25W | 70 | 125 | 100 | 101M | 150V | 200V | 10,000 (TP) / 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 | RK73H | 0.25W | 70 | 125 | 100 | 101M | 200V | 400V | 5,000 / 4,000 |
| 2E (1210) | 2.60.2 x 15.5 | RK73H | 0.5W | 70 | 125 | 100 | 101M | 5,000 / 4,000 | |||
| W2H (2010) | 5.00.2 x 2.50.2 x 0.650.15 x x | 24.3 | RK73H | 0.75W | 70 | 125 | 100 | 101M | 4,000 | ||
| W3A (2512) | 6.30.2 x 3.10.2 x x x | 37.1 | RK73H | 1W | 70 | 125 | 100 | 101M | 200V | 400V | 4,000 |
| W3A2 (2512) | 6.30.2 x 3.10.2 x x x | 37.1 | RK73H | 2W | 95 | 100 | 101M | 200V | 400V | 4,000 |
Performance
| Test Items | Performance Requirements | Test Methods |
|---|---|---|
| Resistance | Within specified tolerance | R0.1 |
| 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) | Rated voltage 2.5 for 5s (1E, 2B, W3A2: Rated voltage2 for 5s) |
| Resistance to soldering heat | 1 (1:1FW3A (10R1M), 3:1HW3A (R<10, R>1M)) | 2605, 10s1s |
| Rapid change of temperature | 1 (1:1F, 0.5:another) | -55 (30min.) /+125 (30min.) 100 cycles |
| Moisture resistance | 2 (2:1J, 2A, 2B, 3:another) | 402, 90%95%RH, 1000h (1.5h ON/0.5h OFF cycle) |
| Endurance at 70 | 2 (2:1J, 2A, 2B, 3:another) | 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) |
2412090919_KOA-RK73H2BTTD2000F_C346127.pdf
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