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AX7DAF1-2000.0000C Equivalent & Substitute Parts
Part Overview
The AX7DAF1-2000.0000C is a 2 GHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 3.3V with Enable/Disable functionality, housed in an 8-SMD, No Lead package. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AX7DAF1-2000.0000C |
| Manufacturer | Abracon LLC |
| Series | ClearClock™ AX7 |
| Frequency | 2 GHz |
| Output Type | LVDS |
| Voltage - Supply | 3.3V |
| Frequency Stability | ±25ppm |
| Operating Temperature Range | -40°C ~ 85°C |
| Current - Supply (Max) | 70mA |
| Mounting Type | Surface Mount |
| Package / Case | 8-SMD, No Lead |
| Size / Dimension | 0.276" L x 0.197" W (7.00mm x 5.00mm) |
| Height - Seated (Max) | 0.075" (1.90mm) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the AX7DAF1-2000.0000C are identified based on the following critical parameters that determine functional compatibility:
- Frequency: 2 GHz (exact match required)
- Output Type: LVDS (exact match required)
- Package / Case: 8-SMD, No Lead (exact match required)
- Size / Dimension: 0.276" L x 0.197" W (7.00mm x 5.00mm) (exact match required)
- Operating Temperature Range: -40°C ~ 85°C (exact match required)
- Frequency Stability: ±25ppm (exact match required)
- Mounting Type: Surface Mount (exact match required)
- RoHS Status: ROHS3 Compliant (exact match required)
- Moisture Sensitivity Level (MSL): 1 (Unlimited) (exact match required)
The primary variable parameter allowing substitution is Voltage - Supply, which may differ while maintaining electrical and mechanical compatibility within the ClearClock™ AX7 series architecture.
Parameter Comparison
| Parameter | AX7DAF1-2000.0000C (Main) | AX7DBF1-2000.0000C (Substitute) |
|---|---|---|
| Manufacturer Part Number | AX7DAF1-2000.0000C | AX7DBF1-2000.0000C |
| Manufacturer | Abracon LLC | Abracon LLC |
| Series | ClearClock™ AX7 | ClearClock™ AX7 |
| Frequency | 2 GHz | 2 GHz |
| Output Type | LVDS | LVDS |
| Voltage - Supply | 3.3V | 2.5V |
| Frequency Stability | ±25ppm | ±25ppm |
| Operating Temperature Range | -40°C ~ 85°C | -40°C ~ 85°C |
| Current - Supply (Max) | 70mA | 70mA |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 8-SMD, No Lead | 8-SMD, No Lead |
| Size / Dimension | 0.276" L x 0.197" W (7.00mm x 5.00mm) | 0.276" L x 0.197" W (7.00mm x 5.00mm) |
| Height - Seated (Max) | 0.075" (1.90mm) | 0.075" (1.90mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
The AX7DBF1-2000.0000C is a qualified substitute for the discontinued AX7DAF1-2000.0000C. Both parts are manufactured by Abracon LLC within the same ClearClock™ AX7 series and share identical electrical performance characteristics, mechanical dimensions, and regulatory compliance status.
The primary distinction is the supply voltage specification: the substitute operates at 2.5V versus the original 3.3V. This voltage difference requires circuit-level evaluation to confirm compatibility with the target application's power supply architecture and signal integrity requirements.
Both parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring equivalent handling and storage requirements. Current draw specifications remain identical at 70mA maximum supply current.
Frequently Asked Questions (FAQ)
Q: Can the AX7DBF1-2000.0000C directly replace the AX7DAF1-2000.0000C in existing designs?
A: Direct replacement requires verification that the application's power supply can accommodate 2.5V operation instead of 3.3V. The electrical performance, frequency stability, output type, and package dimensions are identical. Circuit redesign may be necessary if the original design is constrained to 3.3V supply rails.
Q: Are the mechanical dimensions and mounting footprints identical?
A: Yes. Both parts use the 8-SMD, No Lead package with identical dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.075" (1.90mm). PCB footprints are interchangeable.
Q: Do both parts meet the same regulatory and compliance standards?
A: Yes. Both the AX7DAF1-2000.0000C and AX7DBF1-2000.0000C are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Handling, storage, and environmental requirements are equivalent.
Q: What is the frequency stability specification for both parts?
A: Both parts maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.
Q: Are there inventory considerations for the substitute part?
A: The AX7DBF1-2000.0000C has 767 pieces available as new original stock, providing procurement availability for the discontinued AX7DAF1-2000.0000C.
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