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ERJ-S1DF11R5U Equivalent & Substitute Parts
Part Overview
The ERJ-S1DF11R5U is a 11.5 Ohm ±1% thick film chip resistor rated at 0.75W in a 2010 (5025 Metric) surface mount package. This component is manufactured by Panasonic Electronic Components and is designed for automotive applications with AEC-Q200 qualification and anti-sulfur protection. The part is currently in active production status with 757 units in stock.
Substitute parts are necessary when the primary part becomes unavailable, when design revisions require alternative sourcing, or when production transitions occur between component series. The ERJ-S1DF11R5U has been identified with one direct substitute that maintains electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 11.5 Ohms |
| 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
The ERJ-12SF11R5U qualifies as a direct substitute for the ERJ-S1DF11R5U based on the following critical parameters:
- Identical resistance value: 11.5 Ohms
- Identical tolerance: ±1%
- Identical power rating: 0.75W
- Identical package: 2010 (5025 Metric)
- Identical composition: Thick Film
- Identical temperature coefficient: ±100ppm/°C
- Identical operating temperature range: -55°C ~ 155°C
- Identical automotive qualification: AEC-Q200
- Identical RoHS compliance: ROHS3 Compliant
- Identical MSL rating: 1 (Unlimited)
Both parts share the same physical dimensions (0.197" L x 0.098" W / 5.00mm x 2.50mm) and identical seated height (0.028" / 0.70mm), confirming mechanical interchangeability in PCB layouts.
Parameter Comparison
| Parameter | ERJ-S1DF11R5U (Main) | ERJ-12SF11R5U (Substitute) |
|---|---|---|
| Manufacturer | Panasonic Electronic Components | Panasonic Electronic Components |
| Resistance | 11.5 Ohms | 11.5 Ohms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.75W | 0.75W |
| Package | 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 |
| AEC-Q200 Rating | Yes | Yes |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 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) |
| Product Status | Active | Not For New Designs |
Engineering Selection Recommendations
The ERJ-S1DF11R5U is the preferred choice for new designs due to its active production status. The ERJ-12SF11R5U is electrically and mechanically equivalent but carries a "Not For New Designs" status, indicating that Panasonic has transitioned this series to obsolescence planning.
For existing designs currently using the ERJ-12SF11R5U, the ERJ-S1DF11R5U provides a direct replacement path with no circuit modifications required. Both parts maintain identical electrical performance, thermal characteristics, and automotive compliance certifications.
The primary distinction between these parts is their series designation (ERJ-S1D versus ERJ-12S) and production lifecycle status. The ERJ-S1DF11R5U represents the current generation within the Panasonic automotive resistor portfolio.
Frequently Asked Questions (FAQ)
Q: Can the ERJ-12SF11R5U be used as a direct replacement for the ERJ-S1DF11R5U?
A: Yes. Both parts are electrically and mechanically identical across all critical parameters including resistance, tolerance, power rating, package dimensions, and automotive certifications. No circuit redesign is required.
Q: What is the difference between the ERJ-S1DF11R5U and ERJ-12SF11R5U?
A: The parts differ only in series designation and product lifecycle status. The ERJ-S1DF11R5U is in active production, while the ERJ-12SF11R5U is designated "Not For New Designs." All electrical and mechanical specifications are identical.
Q: Are both parts suitable for automotive applications?
A: Yes. Both the ERJ-S1DF11R5U and ERJ-12SF11R5U carry AEC-Q200 automotive qualification and are rated for the same operating temperature range (-55°C ~ 155°C).
Q: Do these parts have the same physical footprint?
A: Yes. Both parts use the 2010 (5025 Metric) package with identical dimensions (5.00mm x 2.50mm) and seated height (0.70mm). They are footprint-compatible on PCBs.
Q: What is the anti-sulfur feature on the ERJ-S1DF11R5U?
A: The anti-sulfur protection is a material feature of the ERJ-S1DF11R5U that provides enhanced resistance to sulfur-containing environments. The ERJ-12SF11R5U does not include this feature, representing a functional difference between the two parts.
Q: Are both parts RoHS compliant?
A: Yes. Both the ERJ-S1DF11R5U and ERJ-12SF11R5U are ROHS3 compliant with MSL rating 1 (Unlimited moisture sensitivity level).
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