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ERJ-S14F1912U Equivalent & Substitute Parts
Part Overview
The ERJ-S14F1912U is a 19.1 kOhms ±1% thick film chip resistor manufactured by Panasonic Electronic Components in the 1210 (3225 Metric) package format. This component is rated for 0.5W power dissipation and is designed for automotive applications with AEC-Q200 qualification. The part features anti-sulfur construction and operates across the temperature range of -55°C to 155°C.
The ERJ-S14F1912U maintains Active product status with full RoHS3 compliance and REACH unaffected classification. Identifying equivalent and substitute parts is necessary when inventory constraints occur, when transitioning between product series, or when design requirements permit selection from qualified alternatives that meet identical electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 19.1 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.5W (1/2W) |
| Package / Case | 1210 (3225 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Automotive Rating | AEC-Q200 |
| Number of Terminations | 2 |
| Physical Dimensions | 0.126" L x 0.098" W (3.20mm x 2.50mm) |
| Height - Seated (Max) | 0.028" (0.70mm) |
Substitute Part Grouping Explanation
Substitution eligibility for the ERJ-S14F1912U is determined by strict equivalence across the following critical parameters:
- Resistance value: 19.1 kOhms
- Tolerance: ±1%
- Power rating: 0.5W (1/2W)
- Package format: 1210 (3225 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
- Automotive qualification: AEC-Q200
- Termination count: 2
The ERJ-14NF1912U qualifies as a direct substitute based on matching all electrical specifications and mechanical dimensions. Both parts are manufactured by Panasonic Electronic Components and share identical resistance, tolerance, power rating, package type, composition, temperature characteristics, and automotive certification.
Parameter Comparison
| Parameter | ERJ-S14F1912U (Main Part) | ERJ-14NF1912U (Substitute) |
|---|---|---|
| Manufacturer | Panasonic Electronic Components | Panasonic Electronic Components |
| Resistance | 19.1 kOhms | 19.1 kOhms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.5W (1/2W) | 0.5W (1/2W) |
| Package / Case | 1210 (3225 Metric) | 1210 (3225 Metric) |
| Composition | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C | -55°C to 155°C |
| Automotive Rating | AEC-Q200 | AEC-Q200 |
| Physical Dimensions | 0.126" L x 0.098" W (3.20mm x 2.50mm) | 0.126" L x 0.098" W (3.20mm x 2.50mm) |
| Height - Seated (Max) | 0.028" (0.70mm) | 0.028" (0.70mm) |
| Number of Terminations | 2 | 2 |
| Product Status | Active | Not For New Designs |
| RoHS Status | RoHS3 Compliant | RoHS non-compliant |
Engineering Selection Recommendations
The ERJ-S14F1912U is the preferred selection for new designs due to its Active product status and full RoHS3 compliance. This part is suitable for applications requiring long-term supply continuity and regulatory compliance with current environmental standards.
The ERJ-14NF1912U is electrically and mechanically equivalent but carries a "Not For New Designs" designation and does not meet RoHS3 requirements. This substitute is appropriate only for legacy system maintenance, repair operations, or applications where RoHS compliance is not mandated. Selection of the ERJ-14NF1912U should be limited to situations where the ERJ-S14F1912U is unavailable and design constraints permit use of a non-compliant component.
Frequently Asked Questions (FAQ)
Q: Can the ERJ-14NF1912U be used as a direct replacement for the ERJ-S14F1912U in new designs?
A: No. While the ERJ-14NF1912U is electrically and mechanically equivalent, it carries a "Not For New Designs" status and lacks RoHS3 compliance. New designs should specify the ERJ-S14F1912U.
Q: What are the key differences between these two parts?
A: The primary differences are product lifecycle status and regulatory compliance. The ERJ-S14F1912U is Active with RoHS3 compliance. The ERJ-14NF1912U is Not For New Designs and RoHS non-compliant. All electrical and mechanical parameters are identical.
Q: Are the physical dimensions identical between the main part and substitute?
A: Yes. Both parts use the 1210 (3225 Metric) package with identical length, width, and maximum seated height specifications. They are mechanically interchangeable at the PCB level.
Q: What does the anti-sulfur feature on the ERJ-S14F1912U indicate?
A: The anti-sulfur construction is a material enhancement specific to the ERJ-S14F1912U series. The ERJ-14NF1912U does not include this feature. For applications in sulfur-rich environments, the ERJ-S14F1912U is the appropriate selection.
Q: Can these parts be used interchangeably in automotive applications?
A: Both parts carry AEC-Q200 automotive qualification and operate across -55°C to 155°C. However, the ERJ-S14F1912U is the recommended choice for new automotive designs due to its Active status and compliance certifications.
Q: What is the moisture sensitivity level for these components?
A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.
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