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ECS-SR1-8.00-A-TR Equivalent & Substitute Parts
Part Overview
The ECS-SR1-8.00-A-TR is an 8 MHz ceramic resonator designed for surface mount applications. This component operates across a temperature range of -20°C to 80°C with a frequency stability of ±0.3% and impedance of 40 Ohms. The part is classified as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this resonator.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Frequency | 8 MHz |
| Frequency Stability | ±0.3% |
| Frequency Tolerance | ±0.5% |
| Impedance | 40 Ohms |
| Operating Temperature Range | -20°C ~ 80°C |
| Mounting Type | Surface Mount |
| Package Type | 2-SMD |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for ceramic resonators is determined by the following critical parameters: operating frequency, frequency stability tolerance, impedance characteristics, operating temperature range, and surface mount package compatibility. The ECS-CTA-8.00-TR qualifies as a manufacturer-recommended substitute based on matching the 8 MHz frequency specification and maintaining surface mount configuration. The substitute part demonstrates improved frequency stability (±0.2% versus ±0.3%) and an extended operating temperature range (-25°C ~ 85°C versus -20°C ~ 80°C). The impedance differs at 30 Ohms compared to the original 40 Ohms specification. Package dimensions vary between the two designs, with the substitute utilizing a smaller 2-SMD, No Lead configuration (6.00mm x 3.00mm x 1.70mm) relative to the original Non-Standard 2-SMD package (7.50mm x 3.30mm x 1.80mm).
Parameter Comparison
| Parameter | ECS-SR1-8.00-A-TR (Main Part) | ECS-CTA-8.00-TR (Substitute) |
|---|---|---|
| Manufacturer | ECS Inc. | ECS Inc. |
| Frequency | 8 MHz | 8 MHz |
| Frequency Stability | ±0.3% | ±0.2% |
| Frequency Tolerance | ±0.5% | ±0.5% |
| Impedance | 40 Ohms | 30 Ohms |
| Operating Temperature Range | -20°C ~ 80°C | -25°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package Type | 2-SMD, Non-Standard | 2-SMD, No Lead |
| Dimensions (L x W x H) | 7.50mm x 3.30mm x 1.80mm | 6.00mm x 3.00mm x 1.70mm |
| Product Status | Last Time Buy | Active |
| RoHS Status | ROHS3 Compliant | Not specified |
Engineering Selection Recommendations
The ECS-CTA-8.00-TR is the manufacturer-recommended substitute for the ECS-SR1-8.00-A-TR. Selection of this substitute is supported by the following factors: both components are manufactured by ECS Inc., both operate at the identical 8 MHz frequency, and both utilize surface mount technology. The substitute part carries Active product status, ensuring ongoing availability and supply chain support, whereas the original part is designated Last Time Buy. The substitute demonstrates superior frequency stability at ±0.2% compared to ±0.3%, and provides an extended operating temperature range of -25°C ~ 85°C versus -20°C ~ 80°C. The impedance specification differs at 30 Ohms for the substitute versus 40 Ohms for the original part. Package dimensions are smaller for the substitute, which may require PCB layout verification. Circuit design validation is necessary to confirm impedance compatibility and thermal performance within the application's operating envelope.
Frequently Asked Questions (FAQ)
Q: What is the primary reason for substituting the ECS-SR1-8.00-A-TR?
A: The original part is classified as Last Time Buy, indicating discontinued production. The ECS-CTA-8.00-TR is an Active product from the same manufacturer, ensuring long-term availability and supply continuity.
Q: Are the frequency specifications identical between the main part and substitute?
A: Yes, both components operate at 8 MHz with identical frequency tolerance of ±0.5%. The substitute offers improved frequency stability at ±0.2% compared to ±0.3% for the original part.
Q: What is the impedance difference, and does it affect substitution?
A: The original part specifies 40 Ohms impedance, while the substitute specifies 30 Ohms. Circuit design validation is required to confirm impedance compatibility with the application's oscillator circuit and load requirements.
Q: Do the package dimensions differ between the two parts?
A: Yes, the substitute is smaller at 6.00mm x 3.00mm x 1.70mm compared to the original 7.50mm x 3.30mm x 1.80mm. PCB layout verification is necessary to confirm the smaller package accommodates the application's footprint constraints.
Q: What is the operating temperature range for each part?
A: The original part operates from -20°C to 80°C, while the substitute operates from -25°C to 85°C, providing an extended temperature envelope.
Q: Are both parts RoHS compliant?
A: The original ECS-SR1-8.00-A-TR is ROHS3 Compliant. RoHS compliance status for the substitute part is not specified in the provided data.
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