ERJB1BF3R3U Panasonic Resistor (Other) In Stock
Panasonic ERJB1BF3R3U is a high-power low-resistance 3.3Ω ±1% thick film resistor in 2010 surface mount package rated for 1W continuous dissipation. The low-ohm design with ±100ppm/°C temperature stability enables precision current limiting and measurement in power delivery circuits. RoHS-compliant and globally available with expedited worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ERJB1BF3R3U Datasheet PDF
- Category
- Resistor
- Price
- From $0.4310(MOQ 5)
- Temp Range
- -55.0°C to 155.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ERJB1BF3R3U?
- High 1W power rating in compact 2.5mm × 5mm footprint enables robust current sensing in power circuits
- Low 3.3Ω resistance with ±1% precision and ±100ppm/°C stability for accurate high-current applications
- 2010 package supports surface-mount assembly in dense power module and battery management designs
What is ERJB1BF3R3U used for?
The ERJB1BF3R3U is ideal for precision current sensing in DC-DC converter input circuits, battery management system current measurement, and motor phase current monitoring. The 3.3Ω low resistance combined with 1W power rating handles 5-10A sensing currents in 100-200mV voltage drop applications. Its precision ±1% tolerance enables accurate current-mode feedback control in industrial power supplies and renewable energy inverters.
What are the specifications of ERJB1BF3R3U?
| Reach Compliance Code | Compliant |
| Factory Lead Time | 18Weeks |
| YTEOL | 12 |
| Construction | Rectangular |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.55mm |
| Package Length | 2.5mm |
| Package Style | SMT |
| Package Width | 5mm |
| Packing Method | TR, Embossed, 7 Inch |
| Rated Power Dissipation (P) | 2W |
| Rated Temperature | 70°C |
| Reference Standard | AEC-Q200 |
| Resistance | 3.3Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 1020 |
| Surface Mount | YES |
| Technology | METAL GLAZE/THICK FILM |
| Temperature Coefficient | 100ppm/°C |
| Terminal Finish | TIN |
| Terminal Shape | WRAPAROUND |
| Tolerance | 1% |
| Working Voltage | 200V |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.30 |
| Country of Origin | Japan |
Where can I find the ERJB1BF3R3U datasheet?
ERJB1BF3R3U Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ERJB1BF3R3U?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the power rating and resistance value for high-current sensing applications?
The ERJB1BF3R3U provides 3.3Ω ±1% resistance with 1W power dissipation capability. For a typical 5A sensing current, the resistor generates approximately 83mV voltage drop with ±4mV tolerance variation, enabling accurate current feedback in DC-DC converters and battery chargers operating from 12V or 24V supply rails.
Which power circuit applications use the 3.3Ω resistor for current measurement?
The 3.3Ω value is standard in battery pack current sensing, where 10A charge/discharge currents across the resistor produce 33mV signals readable by 12-bit ADCs with 2.44mV per-count resolution. The ±100ppm/°C temperature coefficient ensures current measurement accuracy within ±1% across automotive temperature ranges from -40°C to +85°C.
How does the ERJB1BF3R3U 2010 package compare to through-hole current sense resistors?
The 2010 surface mount package enables space-efficient PCB layouts with 60% smaller footprint than TO-251 through-hole alternatives. The 1W power rating matches industrial precision current sensing standards like AEC-Q200 Grade 1, making it suitable for automotive battery management systems and 48V power distribution circuits.
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Why Buy from FindMyChip
About Panasonic
Panasonic is a leading electronic component manufacturer. FindMyChip sources Panasonic ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 5+ | $0.4900 | $2.45 |
| 25+ | $0.4510 | $11.28 |
| 50+ | $0.4310 | $21.55 |
In Stock · 24h Response · Worldwide Shipping
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