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ECS-50-S-5P-TR Crystal Equivalent & Substitute Parts
Part Overview
The ECS-50-S-5P-TR is a 5.0 MHz surface mount crystal oscillator in HC-49/US package, designed for fundamental mode operation with 80 Ohms equivalent series resistance. This part is classified as Not For New Designs, indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary for legacy system support, inventory management, and design continuity where this frequency and package specification is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Frequency | 5 MHz |
| Frequency Tolerance | ±30ppm |
| Frequency Stability | ±50ppm |
| ESR (Equivalent Series Resistance) | 80 Ohms |
| Operating Mode | Fundamental |
| Package / Case | HC-49/US |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -10°C ~ 70°C |
| Load Capacitance | Series |
| Size / Dimension | 0.449" L x 0.189" W (11.40mm x 4.80mm) |
| Height - Seated (Max) | 0.169" (4.30mm) |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
The ECS-50-S-5PX-TR qualifies as a parametric equivalent substitute based on the following critical parameters:
- Frequency Match: Both parts operate at 5 MHz
- Frequency Tolerance: Identical ±30ppm specification
- Frequency Stability: Identical ±50ppm specification
- ESR: Identical 80 Ohms
- Operating Mode: Both fundamental mode
- Package / Case: Identical HC-49/US
- Mounting Type: Identical surface mount
- Operating Temperature Range: Identical -10°C ~ 70°C
- Load Capacitance: Identical series configuration
- Physical Dimensions: Identical footprint and height
- MSL Rating: Identical MSL 1 (Unlimited)
The substitute part belongs to the CSM-7X series (versus CSM-7 for the original), representing an updated product line iteration with identical electrical and mechanical specifications.
Parameter Comparison
| Parameter | ECS-50-S-5P-TR | ECS-50-S-5PX-TR | Match |
|---|---|---|---|
| Manufacturer | ECS Inc. | ECS Inc. | Yes |
| Frequency | 5 MHz | 5 MHz | Yes |
| Frequency Tolerance | ±30ppm | ±30ppm | Yes |
| Frequency Stability | ±50ppm | ±50ppm | Yes |
| ESR | 80 Ohms | 80 Ohms | Yes |
| Operating Mode | Fundamental | Fundamental | Yes |
| Package / Case | HC-49/US | HC-49/US | Yes |
| Mounting Type | Surface Mount | Surface Mount | Yes |
| Operating Temperature | -10°C ~ 70°C | -10°C ~ 70°C | Yes |
| Load Capacitance | Series | Series | Yes |
| Size / Dimension | 0.449" L x 0.189" W (11.40mm x 4.80mm) | 0.449" L x 0.189" W (11.40mm x 4.80mm) | Yes |
| Height - Seated (Max) | 0.169" (4.30mm) | 0.169" (4.30mm) | Yes |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) | Yes |
| Product Status | Not For New Designs | Active | Different |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | Different |
Engineering Selection Recommendations
The ECS-50-S-5PX-TR is the direct substitute for the ECS-50-S-5P-TR. All electrical and mechanical parameters are identical, ensuring pin-for-pin and functional compatibility in existing circuit designs.
The primary distinction is product lifecycle status: the original part is classified as Not For New Designs, while the substitute is Active. Additionally, the substitute achieves ROHS3 compliance, whereas the original is RoHS non-compliant. For applications requiring RoHS compliance or long-term supply assurance, the ECS-50-S-5PX-TR is the appropriate selection. For legacy system maintenance where the original part specification must be maintained, both parts are electrically and mechanically interchangeable.
Frequently Asked Questions (FAQ)
Q: Can ECS-50-S-5PX-TR replace ECS-50-S-5P-TR in existing designs?
A: Yes. All electrical parameters (frequency, tolerance, stability, ESR, operating mode) and mechanical parameters (package, dimensions, height, mounting type) are identical. Direct substitution is possible without circuit modification.
Q: What is the difference between these two parts?
A: The parts are electrically and mechanically equivalent. The ECS-50-S-5PX-TR represents an updated product line (CSM-7X series) with Active status and ROHS3 compliance, compared to the original CSM-7 series with Not For New Designs status and RoHS non-compliance.
Q: Are the physical footprints identical?
A: Yes. Both parts use HC-49/US package with identical dimensions of 0.449" L x 0.189" W (11.40mm x 4.80mm) and maximum seated height of 0.169" (4.30mm). PCB layout and mounting procedures are identical.
Q: Does the substitute part have the same frequency accuracy?
A: Yes. Both parts specify ±30ppm frequency tolerance and ±50ppm frequency stability. Frequency accuracy performance is identical.
Q: What is the ESR specification for both parts?
A: Both parts have 80 Ohms equivalent series resistance. Load capacitance configuration is series for both parts.
Q: Are there any compliance differences?
A: Yes. The ECS-50-S-5PX-TR is ROHS3 compliant, while the ECS-50-S-5P-TR is RoHS non-compliant. Both parts are REACH Unaffected and classified as EAR99 for export control purposes.
Q: What is the operating temperature range?
A: Both parts operate across -10°C to 70°C. Temperature performance specifications are identical.
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