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ASD-8.000MHZ-LC-T Equivalent & Substitute Parts
Part Overview
The ASD-8.000MHZ-LC-T is an 8 MHz XO (Standard) HCMOS oscillator manufactured by Abracon LLC. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality, designed for applications requiring stable frequency generation in a compact 4-SMD, No Lead package. The part is currently active in production with full RoHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility needs.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Frequency | 8 MHz |
| Output Type | HCMOS |
| Supply Voltage | 3.3V |
| Function | Enable/Disable |
| Frequency Stability | ±50ppm |
| Operating Temperature Range | -40°C ~ 85°C |
| Package Type | 4-SMD, No Lead |
| Package Dimensions | 0.098" L x 0.079" W (2.50mm x 2.00mm) |
| Maximum Height | 0.039" (1.00mm) |
| Mounting Type | Surface Mount |
| RoHS Status | RoHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the ASD-8.000MHZ-LC-T is determined by strict equivalence across the following critical parameters:
- Frequency: 8 MHz (exact match required)
- Output Type: HCMOS (exact match required)
- Supply Voltage: 3.3V (exact match required)
- Function: Enable/Disable (exact match required)
- Frequency Stability: ±50ppm (exact match required)
- Operating Temperature Range: -40°C ~ 85°C (exact match required)
- Package Type: 4-SMD, No Lead (exact match required)
- Package Dimensions: 0.098" L x 0.079" W / 2.50mm x 2.00mm (exact match required)
- Maximum Height: 0.039" (1.00mm) (exact match required)
The LFSPXO072801 from IQD Frequency Products meets all critical electrical and mechanical parameters, making it a direct parametric equivalent for applications requiring the ASD-8.000MHZ-LC-T.
Parameter Comparison
| Parameter | ASD-8.000MHZ-LC-T (Abracon LLC) | LFSPXO072801 (IQD Frequency Products) |
|---|---|---|
| Frequency | 8 MHz | 8 MHz |
| Output Type | HCMOS | HCMOS |
| Supply Voltage | 3.3V | 3.3V |
| Function | Enable/Disable | Enable/Disable |
| Frequency Stability | ±50ppm | ±50ppm |
| Operating Temperature Range | -40°C ~ 85°C | -40°C ~ 85°C |
| Current - Supply (Max) | 5mA | 10mA |
| Current - Supply (Disable) (Max) | 20µA | Not specified |
| Package Type | 4-SMD, No Lead | 4-SMD, No Lead |
| Package Dimensions | 0.098" L x 0.079" W (2.50mm x 2.00mm) | 0.098" L x 0.079" W (2.50mm x 2.00mm) |
| Maximum Height | 0.039" (1.00mm) | 0.039" (1.00mm) |
| RoHS Status | RoHS3 Compliant | RoHS3 Compliant |
| Product Status | Active | Active |
Engineering Selection Recommendations
Both the ASD-8.000MHZ-LC-T and LFSPXO072801 are active production parts with RoHS3 compliance. The primary difference is maximum supply current: the ASD-8.000MHZ-LC-T draws 5mA maximum, while the LFSPXO072801 draws 10mA maximum. Applications with strict power consumption requirements should account for this difference. Both parts are suitable for general-purpose 8 MHz HCMOS oscillator applications requiring enable/disable control at 3.3V operation across the -40°C to 85°C temperature range.
Frequently Asked Questions (FAQ)
Q: Can LFSPXO072801 be used as a direct replacement for ASD-8.000MHZ-LC-T?
A: Yes, the LFSPXO072801 is a parametric equivalent. All critical electrical specifications (frequency, output type, supply voltage, function, stability, and temperature range) and mechanical specifications (package type, dimensions, and height) are identical. The maximum supply current differs (10mA vs 5mA), which should be evaluated for power budget considerations.
Q: Are there any package compatibility issues between these parts?
A: No. Both parts use identical 4-SMD, No Lead packages with matching dimensions (2.50mm x 2.00mm) and maximum height (1.00mm). PCB footprints and reflow profiles are compatible.
Q: What is the significance of the frequency stability specification?
A: Both parts specify ±50ppm frequency stability across the operating temperature range. This parameter defines the maximum deviation from the nominal 8 MHz frequency and is critical for applications with timing-sensitive requirements.
Q: Do both parts support enable/disable functionality?
A: Yes. Both the ASD-8.000MHZ-LC-T and LFSPXO072801 include enable/disable control, allowing the oscillator output to be gated without removing power supply.
Q: What compliance certifications apply to both parts?
A: Both parts are RoHS3 compliant and carry ECCN EAR99 classification. The LFSPXO072801 is REACH Affected, while the ASD-8.000MHZ-LC-T is REACH Unaffected.
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