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Panasonic Electronic Components - Semiconductor Products ERJ-14NF21R5U
- Part No.:
- ERJ-14NF21R5U
- Manufacturer:
- Panasonic Electronic Components - Semiconductor Products
- Category:
- Chip Resistor - Surface Mount
- Package:
- 1210 (3225 Metric)
- Datasheet:
-
ERJ-14NF21R5U.pdf
- Description:
- RES SMD 21.5 OHM 1% 1/2W 1210
- Quantity:
Unit Price:$0.04
Ext Price:$200.00
- Payment:
- Shipping:
Product Details
ERJ-14NF21R5U - Thick Film Chip Resistor 1.5Ω ±1% 0.25W (1210, Automotive Grade)
ERJ-14NF21R5U is a precision thick film chip resistor from Panasonic, designed for automotive and industrial applications. It offers high reliability, stable resistance tolerance (±1%), and robust thermal performance in a 1210 package.
This page is written for product identification and engineering selection guidance. Always verify final limits using the manufacturer's latest datasheet revision for design sign-off.
Overview
ERJ-14NF21R5U is part of the Panasonic ERJ automotive-grade thick film resistor series, optimized for stable operation under harsh environmental conditions. With a resistance value of 1.5Ω and tight tolerance, it is suitable for current sensing, voltage division, and general-purpose circuit protection.
The 1210 (3225 metric) package provides a balance between power handling and PCB space efficiency, making it widely used in power management circuits, automotive electronics, and industrial control systems.
Key Advantages
Designed for demanding environments with stable performance under temperature and vibration stress.
±1% tolerance ensures consistent circuit performance in precision applications.
1210 package supports higher power handling compared to smaller SMD resistors.
Suitable for large-volume applications with reliable thick film technology.
Feature Summary
1.5Ω suitable for current limiting and sensing applications.
±1% for improved circuit accuracy and repeatability.
Approximately 0.25W depending on PCB layout and ambient conditions.
Provides stable performance with good surge and environmental resistance.
Package & Footprint
The ERJ-14NF21R5U comes in a standard 1210 (3225 metric) SMD package, suitable for automated assembly and reflow soldering processes.
(replace with real package photo/drawing)
- Ensure adequate copper area for heat dissipation.
- Avoid placing near heat-sensitive components.
- Follow recommended land pattern for reliable solder joints.
Note: Use the official datasheet for exact dimensions and recommended land pattern.
Pin Functions
The ERJ-14NF21R5U is a passive two-terminal component with simple connectivity.
(replace with official package drawing)
For current sensing or precision applications, consider trace resistance and layout symmetry.
Key Specifications
| Device Type | Thick Film Chip Resistor |
|---|---|
| Resistance | 1.5Ω |
| Tolerance | ±1% |
| Power Rating | 0.25W (typ.) |
| Package | 1210 (3225 Metric) |
| Mounting Type | Surface Mount |
| Operating Temperature | -55°C to +155°C |
| Series | ERJ Automotive Grade |
Equivalent
Common alternatives to ERJ-14NF21R5U include similar 1210 thick film resistors:
Engineering note: When selecting alternatives, verify tolerance, temperature coefficient, and power derating curves to ensure system reliability.
Manufacturer Information
Panasonic is a global leader in electronic components, offering high-reliability passive devices for automotive, industrial, and consumer markets.
- Core strengths: Passive components, automotive electronics, industrial systems
- Typical markets: Automotive, industrial control, consumer electronics
- Engineering resources: Datasheets, reliability reports, application guidelines
Applications
The ERJ-14NF21R5U is widely used in circuits requiring stable resistance and reliable performance:
Power Management
Used for current limiting and voltage division in power circuits.
Automotive Electronics
Reliable operation under temperature and vibration stress.
Industrial Control
Stable performance in control circuits and signal conditioning.
General Electronics
Widely used in consumer and embedded electronic systems.
Quality & Authenticity
- Incoming inspection: marking verification and packaging inspection
- Traceability: date code and supplier tracking
- Anti-counterfeit: recommended for automotive-grade components
FAQ
Is ERJ-14NF21R5U suitable for automotive use?
Can it replace standard 1210 resistors?
What should be considered for low resistance values?
Disclaimer
ERJ-14NF21R5U Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Panasonic Electronic Components - Semiconductor Products
- Series:
- ERJ-14N
- Package/Case:
- 1210 (3225 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Resistance:
- 21.5 Ohms
- Tolerance:
- ±1%
- Power (Watts):
- 0.5W, 1/2W
- Composition:
- Thick Film
- Features:
- Automotive AEC-Q200
- Temperature Coefficient:
- ±100ppm/°C
- Operating Temperature:
- -55°C ~ 155°C
- Supplier Device Package:
- AEC-Q200
- Ratings:
- 1210
- Size / Dimension:
- 0.126" L x 0.098" W (3.20mm x 2.50mm)
- Height - Seated (Max):
- 0.028" (0.70mm)
- Number of Terminations:
- 2
- Failure Rate:
- -
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