Precision Metal Film Resistors KOA RN73H1JTTD4701B25 Featuring Low Noise and EU RoHS Certification
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Product Description
Product Overview
The RN73H series are high-reliability metal film flat chip resistors designed for demanding applications. They offer high precision resistance tolerances (0.05%) and temperature coefficients (510-6/K), low current noise, and an extended operating temperature range up to 155. Enhanced moisture resistance is achieved through a special protective coating. These resistors are suitable for control circuits in various industrial equipment and are compatible with both flow and reflow soldering. They meet EU-RoHS requirements and are AEC-Q200 qualified.
Product Attributes
- Brand: KOA
- Product Type: Metal Film Flat Chip Resistors (High Reliability)
- Coating Color: Black
- Certifications: EU-RoHS, AEC-Q200 Qualified
- Origin: Japan (implied by company name and language)
Technical Specifications
| Type (Inch Size Code) | Dimensions (mm) L x W x t | Weight (g/1000pcs) | Nominal Resistance Range | Resistance Tolerance | Power Rating (85) | Max. Working Voltage | Max. Overload Voltage | T.C.R. (10-6/K) | Taping & Q'ty/Reel (pcs) |
| 1E (0402) | 1.0 x 0.5 x 0.35 | 0.68 | 4710k | 0.05%, 0.1%, 0.25%, 0.5%, 1% | 0.063W | 50V | 100V | 100, 250, 500 | 10,000 (TP, TD, TE) |
| 1J (0603) | 1.6 x 0.8 x 0.45 | 2.14 | 47360k | 0.05%, 0.1%, 0.25%, 0.5%, 1% | 0.1W | 75V | 150V | 100, 250, 500 | 5,000 (TD, TE) |
| 2A (0805) | 2.0 x 1.25 x 0.5 | 4.54 | 471.5M | 0.05%, 0.1%, 0.25%, 0.5%, 1% | 0.125W | 150V | 300V | 100, 250, 500 | 5,000 (TP, TD, TE), 4,000 (TE) |
| 2B (1206) | 3.2 x 1.6 x 0.6 | 9.14 | 471M | 0.05%, 0.1%, 0.25%, 0.5%, 1% | 0.25W | 200V | 400V | 100, 250, 500 | 5,000 (TP, TD, TE), 4,000 (TE) |
| 2E (1210) | 2.5 x 2.5 x 0.6 | 14.5 | 511M | 0.05%, 0.1%, 0.25%, 0.5%, 1% | 0.25W | 200V | 400V | 100, 250, 500 | 5,000 (TP, TD, TE), 4,000 (TE) |
Applications
- Car electronics
- Industrial equipment
- Medical equipment
- Aerospace equipment (requires prior contact)
Reference Standards
- IEC 60115-8
- JIS C 5201-8
- EIAJ RC-2133A
Performance
| Test Items | Performance Requirements | Test Methods |
| Resistance | Within specified tolerance | 25 |
| T.C.R. | Within specified T.C.R. | +25/+125 : T.C.R.=5(10-6/K) +25/-55 and +25/+155 : another |
| Overload (Short time) | R0.05% (Limit), R0.01% (Typical) | Rated voltage 2.5 or Max. overload vol., whichever is less, for 5s |
| Resistance to soldering heat | R0.05% (Limit), R0.01% (Typical) | 2605, 10s1s |
| Rapid change of temperature | R0.1% (Limit), R0.02% (Typical) | 1E, 1J, 2A: -55 (30min.) /+155 (30min.) 1000 cycles 2B, 2E: -55 (30min.) /+155 (30min.) 500 cycles |
| Moisture resistance | R0.1% (Limit), R0.05% (Typical) | 852, 85%5%RH, 1000h (1.5h ON/0.5h OFF cycle) |
| Endurance at 85 | R0.1% (Limit), R0.03% (Typical) | 852, 3000h (1.5h ON/0.5h OFF cycle) |
| High temperature exposure | R0.1% (Limit), R0.05% (Typical) | +155, 1000h |
Precautions for Use
- Be aware of potential static electricity buildup on taping materials, especially in dry conditions or after prolonged vibration, which can lead to mounting failures or component damage.
- Ionic impurities from flux, sweat, or saliva can degrade moisture and corrosion resistance, potentially causing electrical corrosion. Thorough cleaning is recommended, especially when using RMA solder/flux or lead-free solder.
- Avoid direct contact of tape adhesives with the product when using heat-resistant masking tapes during mounting, as removal can cause exfoliation of top electrodes. High-pressure shower cleaning may also cause electrode exfoliation; evaluate products beforehand if unavoidable.
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina