ERJT14J3R9U Panasonic Resistor (Other) In Stock
Panasonic ERJT14J3R9U is a thick film anti-pulse surface mount resistor, 3.9 Ω ±5% resistance, 0.5 W power rating, -100 to +600 ppm/°C TCR in 1210 package with 3.2 mm length. RoHS and REACH compliant for power circuit current sensing. Available worldwide.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ERJT14J3R9U Datasheet PDF
- Category
- Resistor
- Price
- From $0.0940(MOQ 5000)
- 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 ERJT14J3R9U?
- 3.9 Ω ±5% low resistance with 0.5 W power rating in 1210 package ideal for current sensing applications
- Anti-pulse thick film construction for durability under repetitive high-current transient pulse events
- -100 to +600 ppm/°C TCR for predictable resistance behavior across industrial temperature ranges
- RoHS and REACH compliant with JESD-609 e3 lead-free designation for global manufacturing compliance
- 3.2 mm length 1210 package enabling robust SMT placement in high-power-density PCB designs
What is ERJT14J3R9U used for?
The Panasonic ERJT14J3R9U low-value thick film resistor is designed for current sensing and shunt resistor applications where 3.9 Ω resistance and 0.5 W power handling with anti-pulse robustness are essential. It is commonly used in motor drive current feedback loops, battery management current monitoring, and power converter protection circuits operating at elevated currents. The 1210 package and anti-pulse construction ensure long-term stability in demanding industrial and automotive power electronics environments.
What are the specifications of ERJT14J3R9U?
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 22Weeks |
| YTEOL | 12 |
| Construction | Rectangular |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Package Height | 0.6mm |
| Package Length | 3.2mm |
| Package Shape | RECTANGULAR PACKAGE |
| Package Style | SMT |
| Package Width | 2.5mm |
| Packing Method | TR, EMBOSSED, 7 INCH |
| Rated Power Dissipation (P) | 0.5W |
| Rated Temperature | 70°C |
| Reference Standard | AEC-Q200, IEC60115-8 |
| Resistance | 3.9Ω |
| Resistor Type | FIXED RESISTOR |
| Size Code | 1210 |
| Surface Mount | YES |
| Technology | METAL GLAZE/THICK FILM |
| Temperature Coefficient | -100,600 ppm/°C |
| Terminal Finish | TIN |
| Terminal Shape | WRAPAROUND |
| Tolerance | 5% |
| 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 ERJT14J3R9U datasheet?
ERJT14J3R9U Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ERJT14J3R9U?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Why is the 3.9 Ω resistance of the ERJT14J3R9U particularly suited for current sensing circuits?
The 3.9 Ω resistance of the ERJT14J3R9U generates a measurable voltage proportional to current flow while keeping power dissipation manageable at 0.5 W. At 357 mA, the resistor dissipates 0.5 W at exactly its rated limit, making it suitable as a current sense shunt in low-current motor drives and battery management systems.
How does the -100 to +600 ppm/°C TCR of the ERJT14J3R9U differ from the typical ±200 ppm/°C TCR in other ERJT resistors?
The asymmetric -100 to +600 ppm/°C TCR of the ERJT14J3R9U reflects the behavior of low-resistance thick film elements, where the resistance can increase more significantly with rising temperature. Engineers must account for this up to 600 ppm/°C positive drift when designing precision current sensing circuits that operate across wide temperature ranges.
What power dissipation advantages does the 1210 package provide the ERJT14J3R9U in high-current applications?
The 1210 package of the ERJT14J3R9U, with a 3.2 mm body length, provides a larger thermal footprint than 0805 or 1206 packages, enabling its 0.5 W continuous power rating to be fully utilized without exceeding junction temperature limits. This makes it ideal for sustained high-current shunt sensing in motor controllers and DC-DC converter feedback 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 |
|---|---|---|
| 5000+ | $0.1100 | $550.00 |
| 25000+ | $0.1000 | $2500.00 |
| 50000+ | $0.0940 | $4700.00 |
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