ERJT14J1R8U Panasonic Resistor (Other) In Stock
Panasonic ERJT14J1R8U is a thick-film SMD resistor in 1210 case with 1.8 Ω resistance, ±5% tolerance, 0.5 W power rating, and -100 to +600 ppm/°C TCR. Low-value rectangular 3.2 × 0.6 mm package for current-sensing and inrush-limiting surface-mount applications. Available in stock worldwide with fast shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ERJT14J1R8U Datasheet PDF
- Category
- Resistor
- Price
- From $0.0600(MOQ 1)
- Temp Range
- -55.0°C to 155.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1.8 Ω low-resistance value enables precision current sensing and inrush current limiting in power circuits
- 0.5 W power rating in a compact 1210 SMD package with 3.2 mm length and 0.6 mm height
- -100 to +600 ppm/°C asymmetric TCR reflects controlled self-heating behavior at elevated operating currents
- Pb-free JESD-609 e3 and REACH-compliant for global RoHS market requirements
- 12-year YTEOL provides long-term supply security for production and maintenance builds
Applications
The ERJT14J1R8U is well suited for current-sensing shunts in DC motor control circuits, inrush current limiters in power supply input stages, and low-side current measurement in battery management systems. At 1.8 Ω with a 0.5 W rating, it handles up to 527 mA continuously, generating a measurable voltage drop for analog or digital current monitoring. The 1210 package delivers adequate power handling while remaining compact enough for densely populated industrial and consumer PCBs.
Specifications
| 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 | 1.8Ω |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ERJT14J1R8U:
Frequently Asked Questions
How much current can the ERJT14J1R8U continuously carry within its 0.5 W power rating?
With 1.8 Ω resistance and a 0.5 W power rating, the ERJT14J1R8U can handle up to approximately 527 mA continuously at 25°C ambient. This makes it appropriate for current-sensing shunt applications in motor drives and battery chargers where moderate continuous current must be measured with a low-ohmic resistance element.
How does the ERJT14J1R8U's asymmetric TCR affect current-sensing accuracy at elevated temperatures?
The -100 to +600 ppm/°C asymmetric temperature coefficient means the 1.8 Ω resistance can increase by up to 1.08 Ω at 100°C above ambient. Designers using this resistor for current sensing should calibrate or compensate for self-heating effects when sustained currents above 300 mA are expected, as junction temperature rises will shift the measured voltage proportionally.
What voltage drop does the ERJT14J1R8U produce at 500 mA, and is this measurable with a standard ADC?
At 500 mA, the 1.8 Ω resistor drops 0.9 V, which is well within the input range of most 3.3 V ADCs and easily resolved even at 8-bit precision. For a 12-bit ADC with a 3.3 V reference, 0.9 V corresponds to approximately 1117 LSBs, providing sufficient resolution for accurate current measurement across the expected operating range.
What procurement lead time applies to the ERJT14J1R8U, and how should it be handled in BOM planning?
Panasonic specifies a 22-week factory lead time for the ERJT14J1R8U, requiring procurement to begin 5 to 6 months before the production build date. Supply chain teams should monitor distributor inventory levels or qualify a second-source 1210 1.8 Ω ±5% thick-film resistor with shorter lead times to protect against supply disruptions.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2640 | $0.26 |
| 5+ | $0.1000 | $0.50 |
| 25+ | $0.0920 | $2.30 |
| 50+ | $0.0870 | $4.35 |
| 200+ | $0.0788 | $15.76 |
| 557+ | $0.0600 | $33.42 |
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