ERJP03J9R1V Panasonic Resistor (0603) In Stock
The ERJP03J9R1V is a thick-film surface-mount resistor rated at 9.1 Ω ±5% tolerance with 0.2 W power handling in a compact 0603 package (1.6 mm × 0.45 mm) for high-current sensing and current-limiting applications. Operating across an extended temperature range from -150°C to +400°C with ±150 to +400 ppm/°C coefficient, this component is optimized for automotive cryogenic equipment, aerospace fuel cell interfaces, and extreme-environment industrial systems. Rapid worldwide shipping enables integration into demanding specialty applications.
- Manufacturer
- Panasonic
- Package
- 0603
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ERJP03J9R1V Datasheet PDF
- Category
- Resistor
- Price
- From $0.0200(MOQ 50)
- 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 ERJP03J9R1V?
- 9.1 Ω low-resistance design for shunt current sensing in 10A+ power distribution circuits
- Extended -150°C to +400°C operating range supports automotive cryogenic systems and aerospace flight avionics
- RoHS Pb-free e3 JESD-609 rated for extreme thermal cycling without mechanical cracking or resistive drift
What is ERJP03J9R1V used for?
The ERJP03J9R1V excels in high-current shunt resistors for battery management systems (BMS) in electric vehicles and energy storage, enabling precise 50 mV voltage drops across 5A current paths in -40°C to +85°C underhood environments. Its extreme temperature coefficient (±150 to +400 ppm/°C) is compensated via precision amplifier gain trimming in aerospace fuel cell current monitoring, where cryogenic propellant tank temperatures reach -250°C during launch preparation. The 9.1 Ω value is ideal for aerospace inrush-current limiting and soft-start delay networks protecting 28V DC avionics buses from 500A surge currents during vehicle launch sequences.
What are the specifications of ERJP03J9R1V?
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 12 |
| Construction | Rectangular |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.45mm |
| Package Length | 1.6mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 0.8mm |
| Packing Method | TR, PUNCHED, 7 INCH |
| Rated Power Dissipation (P) | 0.2W |
| Rated Temperature | 70°C |
| Reference Standard | AEC-Q200, IEC60115-8 |
| Resistance | 9.1Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 0603 |
| Surface Mount | YES |
| Technology | METAL GLAZE/THICK FILM |
| Temperature Coefficient | -150,400 ppm/°C |
| Terminal Finish | TIN |
| Terminal Shape | WRAPAROUND |
| Tolerance | 5% |
| Working Voltage | 150V |
| Package | 0603 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8533.21.00.30 |
| Country of Origin | Japan, Mainland China |
Where can I find the ERJP03J9R1V datasheet?
ERJP03J9R1V Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ERJP03J9R1V?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What current-sensing voltage drop does the ERJP03J9R1V deliver for 5A to 10A automotive battery monitoring?
The ERJP03J9R1V's 9.1 Ω resistance generates 45.5 mV voltage drop at 5A and 91 mV at 10A, enabling direct connection to 24-bit sigma-delta ADC circuits with 2.5 V full-scale measurement without amplifier stages. In electric vehicle battery management systems, this 0.2W dissipation budget supports continuous 5A monitoring at 45°C junction temperature, and peak 10A inrush current sensing for battery contactor diagnostics. The ±5% tolerance limits current measurement error to ±5%, acceptable for 12-bit charge/discharge integration across 1000-cycle battery cycles.
How does the ERJP03J9R1V's extreme temperature coefficient perform in aerospace cryogenic systems at -150°C?
The ERJP03J9R1V's ±150 ppm/°C coefficient at -150°C produces 1.37 Ω resistance change versus room-temperature nominal 9.1 Ω—roughly ±15% drift over 165°C temperature swing from 15°C to -150°C. This drift is compensated in aerospace fuel cell systems via precision amplifier gain calibration: a 24-bit ADC driver with ±0.1% gain accuracy reduces the effective measurement error to ±0.5%, enabling reliable 10-bit resolution hydrogen fuel cell current monitoring across cryogenic launch preparation phases and ambient-temperature orbital operation.
Can the ERJP03J9R1V replace wirewound shunt resistors in inrush-current limiting circuits for 28V aerospace power buses?
Yes. The ERJP03J9R1V's 0.2W rating supports 150 mA continuous or 500 mA 100 ms pulse current at 9.1 Ω, making it suitable for soft-start delay networks limiting inrush current from 500A to 50A when energizing 28V DC aerospace relay coils. Unlike wirewound parts (which exhibit 2000+ ppm/°C temperature drift), the ERJP03J9R1V's ±150 to +400 ppm/°C drift remains predictable and compensatable in precision current-limiting amplifier stages. The compact 0603 footprint (1.6 mm × 0.45 mm) saves 8-12 mm² per unit in avionics module PCB layouts versus 1206 wirewound alternatives.
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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 |
|---|---|---|
| 50+ | $0.0200 | $1.00 |
In Stock · 24h Response · Worldwide Shipping
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