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ERJ-S1DF33R0U Equivalent & Substitute Parts
Part Overview
The ERJ-S1DF33R0U is a 33 Ohm ±1% 0.75W chip resistor manufactured by Panasonic Electronic Components in the 2010 (5025 Metric) package. This thick film resistor features anti-sulfur properties and automotive AEC-Q200 qualification, making it suitable for demanding automotive and industrial applications. The part is currently active in production with 930 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design alternatives where electrical and mechanical parameters align with application requirements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 33 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 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitute parts for the ERJ-S1DF33R0U are qualified based on the following criteria:
- Identical resistance value: 33 Ohms
- Matching tolerance: ±1%
- Equivalent power rating: 0.75W (3/4W)
- Same package designation: 2010 (5025 Metric)
- Identical composition: Thick Film
- Matching temperature coefficient: ±100ppm/°C
- Overlapping operating temperature range: -55°C ~ 155°C
- Equivalent RoHS and environmental compliance: ROHS3 Compliant, MSL 1
The substitute parts identified below meet all these electrical and mechanical parameters. Variations in specific features (such as anti-sulfur versus moisture-resistant properties) do not affect core substitutability for standard applications, though application-specific requirements should be evaluated.
Parameter Comparison
| Parameter | ERJ-S1DF33R0U (Panasonic) | RC2010FK-0733RL (YAGEO) | RMCF2010FT33R0 (Stackpole) |
|---|---|---|---|
| Manufacturer | Panasonic Electronic Components | YAGEO | Stackpole Electronics Inc |
| Resistance | 33 Ohms | 33 Ohms | 33 Ohms |
| Tolerance | ±1% | ±1% | ±1% |
| Power Rating | 0.75W | 0.75W | 0.75W |
| Package / Case | 2010 (5025 Metric) | 2010 (5025 Metric) | 2010 (5025 Metric) |
| Composition | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| 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) | 0.197" L x 0.098" W (5.00mm x 2.50mm) |
| Height - Seated (Max) | 0.028" (0.70mm) | 0.026" (0.65mm) | 0.028" (0.70mm) |
| Number of Terminations | 2 | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active |
| Packaging | Tape & Reel (TR) | Tape & Reel (TR) | Tape & Reel (TR) |
Engineering Selection Recommendations
All three parts—ERJ-S1DF33R0U, RC2010FK-0733RL, and RMCF2010FT33R0—are active products with full ROHS3 compliance and MSL 1 rating. Selection between these parts should be based on:
- Application environment: The ERJ-S1DF33R0U and RMCF2010FT33R0 both carry AEC-Q200 automotive qualification, making them suitable for automotive applications. The RC2010FK-0733RL features moisture-resistant properties without automotive certification.
- Supply availability: RMCF2010FT33R0 has the highest inventory (28,917 units), followed by RC2010FK-0733RL (6,703 units) and ERJ-S1DF33R0U (930 units).
- Physical height tolerance: RC2010FK-0733RL has a maximum seated height of 0.026" (0.65mm), compared to 0.028" (0.70mm) for the other two parts. This minor difference may be relevant for space-constrained designs.
Frequently Asked Questions (FAQ)
Q: Can RC2010FK-0733RL be used as a direct substitute for ERJ-S1DF33R0U in automotive applications?
A: RC2010FK-0733RL meets all core electrical and mechanical parameters (33 Ohms ±1%, 0.75W, 2010 package, ±100ppm/°C, -55°C ~ 155°C). However, it lacks AEC-Q200 automotive certification. Use in automotive applications should be evaluated against specific design requirements and qualification standards.
Q: What is the difference between anti-sulfur and moisture-resistant properties?
A: Anti-sulfur properties (ERJ-S1DF33R0U, RMCF2010FT33R0) protect against sulfur contamination in certain environments. Moisture-resistant properties (RC2010FK-0733RL) protect against moisture ingress. Both are thick film resistors with MSL 1 rating. Selection depends on the specific environmental exposure of the application.
Q: Are all three parts pin-compatible?
A: Yes. All three parts use the 2010 (5025 Metric) package with 2 terminations and identical footprint dimensions of 0.197" L x 0.098" W (5.00mm x 2.50mm). The minor height variation (0.026" to 0.028") does not affect PCB footprint compatibility.
Q: Which substitute part has the best availability?
A: RMCF2010FT33R0 (Stackpole Electronics Inc) has the highest inventory at 28,917 units in stock, followed by RC2010FK-0733RL (YAGEO) at 6,703 units.
Q: Do all parts meet RoHS requirements?
A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.
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