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ECS-60-S-1 Crystal Equivalent & Substitute Parts
Part Overview
The ECS-60-S-1 is a 6 MHz through-hole crystal oscillator in HC-49/U package configuration, designed for fundamental mode operation with 40 Ohms equivalent series resistance. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent substitute parts is necessary to support legacy system maintenance, repair operations, and continued production of existing designs that cannot be immediately redesigned.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Frequency | 6 MHz |
| Frequency Tolerance | ±30ppm |
| Frequency Stability | ±50ppm |
| ESR (Equivalent Series Resistance) | 40 Ohms |
| Load Capacitance | Series |
| Operating Mode | Fundamental |
| Package / Case | HC-49/U |
| Mounting Type | Through Hole |
| Operating Temperature Range | -10°C ~ 70°C |
| Size / Dimension | 0.447" L x 0.183" W (11.35mm x 4.65mm) |
| Height - Seated (Max) | 0.530" (13.46mm) |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the ECS-60-S-1 is determined by strict equivalence across the following critical parameters:
Frequency matching: 6 MHz (exact) Frequency tolerance: ±30ppm (exact) Frequency stability: ±50ppm (exact) ESR: 40 Ohms (exact) Load capacitance mode: Series (exact) Operating mode: Fundamental (exact) Package type: HC-49/U (exact) Mounting configuration: Through Hole (exact) Operating temperature range: -10°C ~ 70°C (exact) Physical dimensions: 0.447" L x 0.183" W, 0.530" max height (exact)
The ECS-60-S-1X meets all substitution criteria as a parametric equivalent. Differences in product status and compliance certifications do not affect electrical or mechanical compatibility.
Parameter Comparison
| Parameter | ECS-60-S-1 | ECS-60-S-1X | Match Status |
|---|---|---|---|
| Frequency | 6 MHz | 6 MHz | Equivalent |
| Frequency Tolerance | ±30ppm | ±30ppm | Equivalent |
| Frequency Stability | ±50ppm | ±50ppm | Equivalent |
| ESR (Equivalent Series Resistance) | 40 Ohms | 40 Ohms | Equivalent |
| Load Capacitance | Series | Series | Equivalent |
| Operating Mode | Fundamental | Fundamental | Equivalent |
| Package / Case | HC-49/U | HC-49/U | Equivalent |
| Mounting Type | Through Hole | Through Hole | Equivalent |
| Operating Temperature Range | -10°C ~ 70°C | -10°C ~ 70°C | Equivalent |
| Size / Dimension | 0.447" L x 0.183" W (11.35mm x 4.65mm) | 0.447" L x 0.183" W (11.35mm x 4.65mm) | Equivalent |
| Height - Seated (Max) | 0.530" (13.46mm) | 0.530" (13.46mm) | Equivalent |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | Equivalent |
| Product Status | Not For New Designs | Active | Substitute is active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant | Substitute offers improved compliance |
Engineering Selection Recommendations
The ECS-60-S-1X is the direct parametric equivalent for the ECS-60-S-1. All electrical and mechanical specifications are identical, ensuring pin-for-pin and form-factor compatibility in existing circuit designs.
The primary distinction between these parts is product lifecycle status and regulatory compliance. The ECS-60-S-1 is designated "Not For New Designs," reflecting its end-of-life classification. The ECS-60-S-1X maintains active product status and carries ROHS3 compliance certification, whereas the original part is RoHS non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification.
For applications requiring continued supply of 6 MHz HC-49/U through-hole crystals with 40 Ohms ESR and ±30ppm tolerance, the ECS-60-S-1X provides equivalent electrical performance with the advantage of active manufacturing support and improved environmental compliance.
Frequently Asked Questions (FAQ)
Q: Can the ECS-60-S-1X be used as a direct replacement for the ECS-60-S-1 in existing designs?
A: Yes. The ECS-60-S-1X is a parametric equivalent with identical frequency, tolerance, stability, ESR, load capacitance, operating mode, package type, mounting configuration, and physical dimensions. No circuit modifications are required.
Q: What is the difference between the HC-49/U and HC-49UX series designations?
A: Both parts use the HC-49/U package standard. The series designation difference reflects manufacturing evolution; electrical and mechanical specifications remain equivalent.
Q: Does the RoHS3 compliance of the ECS-60-S-1X affect compatibility with designs originally specified for the RoHS non-compliant ECS-60-S-1?
A: No. RoHS compliance status does not alter electrical performance or mechanical fit. The ECS-60-S-1X is fully compatible with existing circuit designs.
Q: Are there any temperature range limitations when substituting the ECS-60-S-1X for the ECS-60-S-1?
A: No. Both parts operate across the identical temperature range of -10°C to 70°C with equivalent frequency stability specifications.
Q: What is the significance of the "Active" product status of the ECS-60-S-1X compared to "Not For New Designs" for the ECS-60-S-1?
A: Active status indicates the ECS-60-S-1X is in current production with ongoing manufacturer support. The ECS-60-S-1 has reached end-of-life. For applications requiring long-term supply continuity, the ECS-60-S-1X is the recommended choice.
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