ERJP14J3R9V Panasonic Resistor (Other) In Stock
Panasonic ERJP14J3R9V is a thick film surface mount resistor in 1210 case with 3.9Ω low resistance, ±5% tolerance, 0.5W power rating, and -100 to +600ppm/°C temperature coefficient. Available in stock with competitive pricing and worldwide shipping.
- Manufacturer
- Panasonic
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- ERJP14J3R9V Datasheet PDF
- Category
- Resistor
- Price
- From $0.0850(MOQ 125)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ERJP14J3R9V?
- 3.9Ω very low resistance value for current sensing and snubber circuit applications
- 0.5W power rating in 1210 package supporting significant current flow through low-resistance paths
- -100 to +600ppm/°C temperature coefficient suitable for general-purpose low-ohmic applications
- Thick film construction in 1210 SMT package enabling automated high-volume assembly
What is ERJP14J3R9V used for?
The ERJP14J3R9V low-resistance 3.9Ω thick film resistor is commonly employed in current sensing networks, snubber circuits, and inrush current limiting designs in power supplies and motor controllers. Its 0.5W rating in 1210 package handles the higher currents inherent in low-resistance applications, such as gate drive resistors for power MOSFETs and IGBTs. The component also finds use in EMI filtering and damping circuits in switching power converters and inverter designs.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the ERJP14J3R9V datasheet?
ERJP14J3R9V Datasheet DownloadOfficial datasheet from Panasonic
What are equivalent replacements for ERJP14J3R9V?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How much continuous current can pass through the ERJP14J3R9V at its 0.5W rated power?
At 0.5W with 3.9Ω resistance, the ERJP14J3R9V supports approximately 358mA of continuous current using I=sqrt(P/R). This relatively high current capability for an SMT resistor makes the 1210 package well suited for gate drive resistors, current limiting, and low-side sensing in switching power supply and motor control applications.
In which circuit topologies does a 3.9Ω resistor at 0.5W provide effective snubber damping?
A 3.9Ω resistor in RC snubber circuits across power switch nodes effectively damps voltage ringing on MOSFET or IGBT drain-source transitions by absorbing energy from parasitic LC tank resonance. At 0.5W, the ERJP14J3R9V handles typical snubber dissipation in converters operating at switching frequencies up to several hundred kHz, suppressing EMI and protecting switches from overvoltage spikes exceeding their rated drain-source breakdown.
How does the ±5% tolerance of ERJP14J3R9V impact current measurement accuracy in sensing circuits?
With ±5% tolerance, the 3.9Ω resistance ranges from 3.705Ω to 4.095Ω, introducing up to ±5% error into current sense voltage calculations. For applications requiring tighter current measurement, upgrading to a ±1% tolerance part in the same 1210 package reduces the resistance uncertainty to ±0.039Ω, improving current measurement accuracy from ±5% to ±1% without changing the PCB footprint.
Why choose the 1210 package for a 3.9Ω resistor rather than a smaller SMT footprint?
The 1210 package provides superior thermal dissipation area for 3.9Ω at 0.5W compared to 0805 packages limited to 0.25W. When current flows through low-resistance paths, even small resistances dissipate significant power: at 358mA, the ERJP14J3R9V dissipates the full 0.5W. The larger 3.2mm 1210 footprint spreads this heat across more PCB copper, preventing thermal damage in continuous high-current applications.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 2026
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 |
|---|---|---|
| 125+ | $0.1090 | $13.63 |
| 250+ | $0.0970 | $24.25 |
| 500+ | $0.0850 | $42.50 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
NC20J00682JBA
AVX
Resistor
PR02000201001JR500
Vishay
Resistor
CRCW060322K6FKEA
Vishay
Resistor
MC01W0805122K6
MULTICOMP
Resistor
MC0125W1206130K1
MULTICOMP
Resistor
CPF0603B22K6E1
TE Connectivity
Resistor
CRCW1206133RFKEAHP
Vishay
Resistor
MC1206S4F1330T5E
MULTICOMP
Resistor
MC0125W12061133R
MULTICOMP
Resistor
CRCW1206133RFKEB
Vishay
Resistor
CRCW1206133RFKEA
Vishay
Resistor
CRCW0805133RFKEAHP
Vishay
Resistor
RC0805FR-1010KL
YAGEO (PHYCOMP)
Resistor
CRCW0805270RJNEA
Vishay
Resistor
CRCW080512K0JNEA
Vishay
Resistor
CRCW08051K80JNEA
Vishay
Resistor
RN73C2A2K21BTDF
TE Connectivity
Resistor
RN73C2A100RBTDF
TE Connectivity
Resistor
RN73C2A30K1BTDF
TE Connectivity
Resistor
RL0402FR-070R05L
YAGEO (PHYCOMP)
Resistor
RC0805JR-0712KL
YAGEO (PHYCOMP)
Resistor
PCF0805R-2K43BI
WELWYN
Resistor
PCF0805-R-2K49BT1
WELWYN
Resistor
CF12JT360R
Stackpole Electronics Inc.
Resistor