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ERJ-S1DF1821U Equivalent & Substitute Parts
Part Overview
The ERJ-S1DF1821U is a 1.82 kOhms ±1% 0.75W chip resistor manufactured by Panasonic Electronic Components in the 2010 (5025 Metric) package format. This thick film resistor is designed for automotive applications with AEC-Q200 qualification and anti-sulfur protection. The part is currently in active production status with 655 units available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are matched across manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 1.82 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.75W (3/4W) |
| Package / Case | 2010 (5025 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the ERJ-S1DF1821U is determined by strict equivalence across the following parameters:
- Resistance value: 1.82 kOhms
- Tolerance: ±1%
- Power rating: 0.75W
- Package format: 2010 (5025 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C ~ 155°C
- Automotive compliance: AEC-Q200
- RoHS compliance: ROHS3
The RMCF2010FT1K82 from Stackpole Electronics Inc meets all specified electrical and mechanical parameters, making it a direct equivalent substitute.
Parameter Comparison
| Parameter | ERJ-S1DF1821U (Panasonic) | RMCF2010FT1K82 (Stackpole) |
|---|---|---|
| Resistance | 1.82 kOhms | 1.82 kOhms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.75W | 0.75W |
| Package / Case | 2010 (5025 Metric) | 2010 (5025 Metric) |
| Composition | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C |
| Automotive Rating | AEC-Q200 | AEC-Q200 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| Size / Dimension | 0.197" L x 0.098" W (5.00mm x 2.50mm) | 0.197" L x 0.098" W (5.00mm x 2.50mm) |
| Height - Seated (Max) | 0.028" (0.70mm) | 0.028" (0.70mm) |
| Number of Terminations | 2 | 2 |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the ERJ-S1DF1821U and RMCF2010FT1K82 are active production components with identical electrical and mechanical specifications. Selection between these parts may be based on availability, lead time, or supply chain requirements. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance, confirming suitability for automotive circuit applications. The RMCF2010FT1K82 currently has higher inventory availability at 28,954 units compared to 655 units for the ERJ-S1DF1821U.
Frequently Asked Questions (FAQ)
Q: Can RMCF2010FT1K82 be used as a direct replacement for ERJ-S1DF1821U?
A: Yes. Both parts share identical resistance value (1.82 kOhms), tolerance (±1%), power rating (0.75W), package format (2010), temperature coefficient (±100ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. Physical dimensions and termination count are equivalent.
Q: Are there differences in anti-sulfur protection between these parts?
A: The ERJ-S1DF1821U is specified with anti-sulfur protection. The RMCF2010FT1K82 specification does not explicitly list anti-sulfur features. This difference should be evaluated based on application requirements in corrosive environments.
Q: Do both parts meet automotive compliance requirements?
A: Yes. Both the ERJ-S1DF1821U and RMCF2010FT1K82 carry AEC-Q200 qualification and ROHS3 compliance, meeting automotive industry standards.
Q: Are the physical dimensions identical?
A: Yes. Both parts measure 0.197" L x 0.098" W (5.00mm x 2.50mm) with a maximum seated height of 0.028" (0.70mm), confirming PCB layout compatibility.
Q: What is the moisture sensitivity level for these parts?
A: Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.
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