RK73H Precision Thick Film Chip Resistors
The RK73H series offers high-precision thick film chip resistors with 0.5% and 1% tolerances. These resistors are designed to meet EU RoHS requirements with lead-free terminations. They are AEC-Q200 tested and suitable for a wide range of applications requiring reliable performance and tight tolerance.
Product Attributes
- Brand: KOA Speer Electronics, Inc.
- Certifications: EU RoHS compliant, AEC-Q200 Tested
- Material: Thick film, Ceramic Substrate, Sn Plating, Ni Plating
Technical Specifications
| Type | Size Code | Nominal Resistance Range | Tolerance | Power Rating (Rated Ambient Temp. 70C) | Max. Working Voltage (Rated Ambient Temp. 70C) | T.C.R. (x10-6/K) | Operating Temp. Range |
| RK73H1F | 01005 | 10 - 91k* | 0.5%, 1% | 0.03W | 20V | 250, 400 | -55C to +125C |
| RK73H1H | 0201 | 10 - 1M | 0.5%, 1% | 0.05W | 25V | 100, 200, 400 | -55C to +125C |
| RK73H1E | 0402 | 10 - 1k | 0.5%, 1% | 0.1W | 30V | 200, 250 | -55C to +155C |
| RK73H1J | 0603 | 10 - 1M | 0.5%, 1% | 0.1W | 50V | 100, 200 | -55C to +155C |
| RK73H2A | 0805 | 10 - 1M | 0.5%, 1% | 0.25W | 75V | 100, 200 | -55C to +155C |
| RK73H2B | 1206 | 10 - 1M | 0.5%, 1% | 0.25W | 100V | 100, 200 | -55C to +155C |
| RK73H2E | 1210 | 10 - 1M | 0.5%, 1% | 0.5W | 150V | 100, 200 | -55C to +155C |
| RK73HW2H/2H | 2010 | 10 - 1M | 0.5%, 1% | 0.75W | 200V | 100, 200 | -55C to +155C |
| RK73HW3A/3A | 2512 | 10 - 1M | 0.5%, 1% | 1.0W | 400V | 100, 200 | -55C to +155C |
| RK73HW3A2 | 2512 | 10 - 1M | 0.5%, 1% | 2.0W | 400V | 100, 200 | -55C to +155C |
Dimensions and Construction
| Type* | L (inch/mm) | c (inch/mm) | W (inch/mm) | d (inch/mm) | t (inch/mm) |
| 1H (0201) | .024.001 (0.60.03) | .012.001 (0.30.03) | .016.008 (0.40.2) | .016.008 (0.40.2) | .012.001 (0.30.03) |
| 1F (01005) | .016.0008 (0.40.02) | .008.0008 (0.20.02) | .014.002 (0.350.05) | .018.004 (0.450.1) | .012.004 (0.30.1) |
| 1E (0402) | .039 +.004 -.002 (1.0 +0.1 ) -0.05 | .01 +.002 -.004 (0.25 +0.05) -0.1 | .02.002 (0.50.05) | .02.004 (0.50.1) | .02.004 (0.50.1) |
| 1J (0603) | .063.008 (1.60.2) | .026.006 (0.650.15) | .031.008 (0.80.2) | .026.006 (0.650.15) | .022.014 (0.550.35) |
| 2A (0805) | .079.008 (2.00.2) | .031.004 (0.80.1) | .049.004 (1.250.1) | .031.004 (0.80.1) | .022.004 (0.550.1) |
| 2B (1206) | .102.008 (2.60.2) | .031.004 (0.80.1) | .063.008 (1.60.2) | .031.004 (0.80.1) | .024.008 (0.60.2) |
| 2E (1210) | .126.008 (3.20.2) | .049.004 (1.250.1) | .079.008 (2.00.2) | .049.004 (1.250.1) | .026.006 (0.650.15) |
| W2H (2010) | .098.008 (2.50.2) | .031.004 (0.80.1) | .197.008 (5.00.2) | .031.004 (0.80.1) | .026.006 (0.650.15) |
| W3A/W3A2 (2512) | .122.008 (3.10.2) | .049.004 (1.250.1) | .248.008 (6.30.2) | .049.004 (1.250.1) | .026.006 (0.650.15) |
| 3A (2512) | .122.008 (3.10.2) | .049.004 (1.250.1) | .248.008 (6.30.2) | .049.004 (1.250.1) | .026.006 (0.650.15) |
Performance Characteristics
| Parameter | Requirement | Limit | Typical | Test Method |
| Resistance T.C.R. | 25C +25C/-55C and +25C/+125C | Within specified tolerance | Within specified T.C.R. | |
| 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; 0.5%: Others | 0.5%: 1F ~ W3A2 (10 | |
| Rapid Change of Temperature Characteristic (Nil) | Standard: -55C (30 min), +125C (30 min), 100 cycles | 1%: 1F, Characteristic (A) Heat Shock Resistance; 0.5% Others | 0.5%: 1F, Characteristic (A) Heat Shock Resistance; 0.3% Others | |
| Moisture Resistance | 40C 2C, 90%-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B; 3%: Others | 0.75%: 1J, 2A, 2B; 1%: Other | |
| Endurance at 70C | 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle | 2%: 1J, 2A, 2B; 3%: Others | 0.75%: 1J, 2A, 2B; 1%: Others | |
| High Temperature Exposure | +125C, 1000 hours: 1F; +155C, 1000 hours: 1E, 1H, 1J, 2A, 2B, 2E, 2H/W2H, 3A/W3A/W3A2 | 1% | 0.5%: 1F; 0.3%: Others |
2410121607_KOA-RK73H1ETTP4871F_C316970.pdf
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