RK73H Precision Thick Film Chip Resistors
The RK73H series of thick film chip resistors offers high precision with 0.5% and 1% tolerances. These resistors feature lead-free terminations that meet EU RoHS requirements, with the exception of lead in glass for electrodes, resistor elements, and glass. The series is AEC-Q200 Qualified across various package sizes. They are designed for applications requiring stable resistance values and reliability, with derating curves provided for operation at elevated ambient or terminal part temperatures.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS, AEC-Q200 Qualified
- Construction: Thick Film
- Termination Material: Solder Plating (Ni Plating)
- Origin: USA (Manufacturer Address Provided)
Technical Specifications
| Type (Inch Size Code) | L (mm) | W (mm) | t (mm) | d (mm) | c (mm) | Power Rating (W) | Max. Working Voltage (V) | Operating Temp. Range (C) | T.C.R. (x10/K) | Resistance Range () |
|---|---|---|---|---|---|---|---|---|---|---|
| 1F (01005) | 0.4 (0.0160.0008) | 0.2 (0.0080.0008) | 0.1 (0.0040.001) | 0.11 (0.0040.001) | 0.02 (0.0050.0008) | 0.03 | 20 | -55 to +125 | 250 | 10 - 91k |
| 1H (0201) | 0.6 (0.0240.001) | 0.3 (0.0120.001) | 0.05 (0.0020.001) | 0.03 (0.0010.0005) | 0.03 (0.0010.0005) | 0.05 | 25 | -55 to +125 | 200 | 1.0 - 9.1, 1M - 10M |
| 1E (0402) | 1.0 (0.039+.004-.002) | 0.5 (0.020.002) | 0.1 (0.0040.001) | 0.1 (0.0040.001) | 0.05 (0.0020.001) | 0.1 | 50 | -55 to +155 | 200 | 10 - 1M |
| 1J (0603) | 1.6 (0.0630.008) | 0.8 (0.0310.004) | 0.15 (0.0060.002) | 0.23 (0.0090.001) | 0.1 (0.0040.002) | 0.125 | 50 | -55 to +155 | 200 | 10 - 1M |
| 2A (0805) | 2.0 (0.0790.008) | 1.25 (0.0490.004) | 0.2 (0.0080.002) | 0.3 (0.0120.004) | 0.15 (0.0060.002) | 0.25 | 75 | -55 to +155 | 100, 200 | 10 - 1M |
| 2B (1206) | 2.6 (0.1020.008) | 1.6 (0.0630.008) | 0.25 (0.010.002) | 0.4 (0.0160.008) | 0.2 (0.0080.004) | 0.25 | 100 | -55 to +155 | 100, 200 | 10 - 1M |
| 2E (1210) | 3.2 (0.1260.008) | 2.5 (0.0980.008) | 0.35 (0.0140.002) | 0.5 (0.020.004) | 0.2 (0.0080.004) | 0.5 | 150 | -55 to +155 | 100, 200 | 10 - 1M |
| 2H / W2H (2010) | 5.0 (0.1970.008) | 2.5 (0.0980.008) | 0.5 (0.020.004) | 0.65 (0.0260.006) | 0.3 (0.0120.004) | 0.75 | 200 | -55 to +155 | 100, 200 | 10 - 1M |
| 3A / W3A (2512) | 6.3 (0.2480.008) | 3.1 (0.1220.008) | 0.65 (0.0260.006) | 0.65 (0.0260.006) | 0.4 (0.0160.008) | 1.0 | 200 | -55 to +155 | 100, 200 | 10 - 1M |
| W3A2 (2512) | 6.3 (0.2480.008) | 3.1 (0.1220.008) | 0.65 (0.0260.006) | 0.65 (0.0260.006) | 0.4 (0.0160.008) | 2.0 | 400 | -55 to +155 | 100, 200 | 10 - 1M |
Performance Characteristics
| Parameter | Requirement | Limit | Test Method |
|---|---|---|---|
| Resistance T.C.R. | 25C +25C/-55C and +25C/+125C | Within specified tolerance | |
| Overload (Short time) | Rated Voltage x 2.5 for 5 seconds (1E, 2B, W3A2: Rated Voltage x 2 for 5 seconds) | 2% | |
| Resistance to Soldering Heat | 260C 5C, 10 seconds 1 second | 1%: 1F ~ W3A2 (10R1M); 3%: 1H ~ W3A2 (R<10, R>1M) | |
| Rapid Change of Temperature | -55C (30 minutes), +125C (30 minutes), 100 cycles | 1%: 1F; 0.5%: Another | |
| Moisture Resistance | 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B; 3%: Another | |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B; 3%: Another | |
| High Temperature Exposure | +125C, 1000 hours: 1F; +155C, 1000 hours: 1E, 1H, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2 | 1% |
Ordering Information Example
RK73H Type Size Nominal Resistance Tolerance Termination Material Packaging
2B TD 1003 F T EU
Packaging Options
- TX: 01005 only: 4mm width - 1mm pitch plastic embossed
- TBL: 01005 only: 2mm pitch pressed paper
- TA: 0201 only: 1mm pitch pressed paper
- TC: 0201 only: 7" 2mm pitch pressed paper (10,000 pcs/reel)
- TCM: 0201 only: 7" 2mm pitch pressed paper (15,000 pcs/reel)
- TCD: 0201 only: 10" 2mm pitch pressed paper
- TPD: 0402 only: 10" plastic embossed
- TPL: 0402 only: 2mm pitch punch paper
- TP: 0402, 0603, 0805: 7" 2mm pitch punch paper
- TD: 0603, 0805, 1206, 1210: 7" 4mm pitch punched paper
- TDD: 0603, 0805, 1206, 1210: 10" paper tape
- TE: 0805, 1206, 1210, 2010 & 2512: 7" embossed plastic
- TED: 0805, 1206, 1210, 2010 & 2512: 10" embossed plastic
For further information on packaging, please refer to Appendix A.
Derating Curves
Resistors operated at an ambient temperature of 70C or above shall be derated in accordance with the ambient temperature derating curve. Resistors operated at a terminal part temperature of described for each size or above shall be derated in accordance with the terminal part temperature derating curve. For resistors operated at a terminal part temperature of described for each size or above, a power rating shall be derated in accordance with the above derating curve. Please refer to Introduction of the derating curve based on the terminal part temperature in the beginning of our catalog before use.
2410121530_KOA-RK73H1ETTP6982F_C830260.pdf
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