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DOC102F-019.44M OCXO Oscillator Equivalent & Substitute Parts
Part Overview
The DOC102F-019.44M is a 19.44 MHz OCXO (Oven Controlled Crystal Oscillator) with LVCMOS output, designed for applications requiring stable frequency generation at 3.3V supply voltage. This component is classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations. The part operates across the industrial temperature range of -40°C to 85°C with frequency stability of ±100ppb, typical for precision timing applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Frequency | 19.44 MHz |
| Output Type | LVCMOS |
| Supply Voltage | 3.3V |
| Frequency Stability | ±100ppb |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 6-SMD, No Lead |
| Physical Dimensions | 14.10mm L × 9.10mm W |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | MSL 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the DOC102F-019.44M is determined by strict equivalence across the following critical parameters:
- Frequency Match: 19.44 MHz (exact)
- Output Configuration: LVCMOS
- Supply Voltage: 3.3V
- Frequency Stability: ±100ppb
- Operating Temperature Range: -40°C to 85°C
- Package Specification: 6-SMD, No Lead surface mount
- Compliance Standards: ROHS3 Compliant, REACH Unaffected
The DOCAT102F-019.44M qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is product status: the substitute part is active production, whereas the original is obsolete.
Parameter Comparison
| Parameter | DOC102F-019.44M (Original) | DOCAT102F-019.44M (Substitute) | Compatibility |
|---|---|---|---|
| Manufacturer Part Number | DOC102F-019.44M | DOCAT102F-019.44M | Different designations, same electrical function |
| Manufacturer | Connor Winfield | Connor Winfield | Identical |
| Series | DOC | DOCAT | Different series, equivalent specifications |
| Product Status | Obsolete | Active | Substitute is in active production |
| Frequency | 19.44 MHz | 19.44 MHz | Identical |
| Output Type | LVCMOS | LVCMOS | Identical |
| Supply Voltage | 3.3V | 3.3V | Identical |
| Frequency Stability | ±100ppb | ±100ppb | Identical |
| Operating Temperature | -40°C to 85°C | -40°C to 85°C | Identical |
| Package / Case | 6-SMD, No Lead | 6-SMD, No Lead | Identical |
| Physical Dimensions (L × W) | 14.10mm × 9.10mm | 14.10mm × 9.10mm | Identical |
| Height - Seated (Max) | 7.80mm | 8.51mm | Substitute is 0.71mm taller; verify PCB clearance |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| Moisture Sensitivity Level | MSL 1 (Unlimited) | MSL 1 (Unlimited) | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
Engineering Selection Recommendations
The DOCAT102F-019.44M is the manufacturer-recommended substitute for the obsolete DOC102F-019.44M. Both parts are manufactured by Connor Winfield and maintain identical electrical specifications, frequency output, supply voltage requirements, and temperature operating range.
Compliance Alignment: Both parts meet ROHS3 compliance and REACH requirements, ensuring regulatory compatibility in applications subject to environmental standards.
Physical Consideration: The substitute part has a maximum seated height of 8.51mm compared to 7.80mm for the original. This 0.71mm difference requires verification against PCB layout constraints and component clearance specifications to ensure no interference with adjacent components or enclosure boundaries.
Availability: The substitute part is in active production status with confirmed inventory availability, whereas the original is obsolete. Selection of the DOCAT102F-019.44M ensures long-term supply chain continuity and support.
Frequently Asked Questions (FAQ)
Q: Can the DOCAT102F-019.44M be used as a direct replacement for the DOC102F-019.44M?
A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: frequency, output type, supply voltage, stability, temperature range, and package specification. The primary difference is product status and a minor height variation.
Q: What is the significance of the height difference between the two parts?
A: The substitute part is 0.71mm taller (8.51mm vs. 7.80mm maximum seated height). This difference must be evaluated against your PCB design to confirm adequate clearance above the component and no interference with overlying assemblies or enclosure components.
Q: Are there any compliance or certification differences?
A: No. Both parts carry identical ROHS3 compliance and REACH unaffected status, ensuring equivalent regulatory standing for applications subject to environmental and hazardous substance restrictions.
Q: Why is the original part listed as obsolete?
A: The DOC102F-019.44M has been discontinued by the manufacturer. The DOCAT102F-019.44M represents the active production equivalent, ensuring continued availability and manufacturer support.
Q: What parameters must match for substitution eligibility?
A: Frequency (19.44 MHz), output type (LVCMOS), supply voltage (3.3V), frequency stability (±100ppb), operating temperature range (-40°C to 85°C), and package type (6-SMD, No Lead) must all be identical. The DOCAT102F-019.44M meets all these criteria.
Q: Is the MSL rating the same for both parts?
A: Yes. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage or handling.
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