AX7DBF3-156.2500C Equivalent & Substitute Parts

Part Overview

The AX7DBF3-156.2500C is a 156.25 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 2.5V with enable/disable functionality and is housed in an 8-SMD, No Lead package. The product is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7DBF3-156.2500C

Abracon LLCIn Stock: 1196AX7DBF3-156.2500C Datasheet

Current PartRFQ

AX7DBF1-156.2500C

Abracon LLCIn Stock: 775AX7DBF1-156.2500C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX7DBF3-156.2500C are identified based on strict parametric equivalence across the following critical criteria:

Frequency matching at 156.25 MHz ensures signal compatibility in timing-critical applications. Output type (LVDS) must remain constant to maintain signal integrity with receiving circuits. Supply voltage of 2.5V is non-negotiable for power distribution compatibility. Enable/Disable function preservation allows equivalent control of oscillator operation. Frequency stability of ±25ppm ensures timing accuracy within specified tolerances. Operating temperature range of -40°C ~ 85°C defines environmental suitability. Package type (8-SMD, No Lead) and dimensions (7.00mm x 5.00mm) ensure mechanical and electrical compatibility with PCB layouts. Current specifications (70mA maximum supply, 65mA maximum disable) must not be exceeded.

The AX7DBF1-156.2500C meets all these criteria and qualifies as a parametric equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The AX7DBF1-156.2500C serves as a direct parametric equivalent to the discontinued AX7DBF3-156.2500C. Both parts maintain identical electrical specifications, mechanical dimensions, and compliance certifications. The AX7DBF1-156.2500C is currently available with 683 units in stock, providing procurement continuity for applications requiring the AX7DBF3-156.2500C.

Both parts carry ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment. Moisture Sensitivity Level 1 (Unlimited) indicates no special handling requirements during storage or assembly. The 8-SMD, No Lead package with 7.00mm x 5.00mm footprint and 1.90mm maximum seated height ensures compatibility with existing PCB designs without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the AX7DBF1-156.2500C replace the AX7DBF3-156.2500C in production designs?

A: Yes. The AX7DBF1-156.2500C is a parametric equivalent with identical electrical and mechanical specifications. No circuit modifications or PCB layout changes are required.

Q: Are there differences in frequency stability between these parts?

A: No. Both parts maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: Do these parts require different PCB footprints?

A: No. Both parts use the same 8-SMD, No Lead package with 7.00mm x 5.00mm dimensions and 1.90mm maximum seated height. Existing footprints are directly compatible.

Q: What is the significance of the part number suffix difference (DBF3 vs. DBF1)?

A: The suffix indicates internal design variants within the ClearClock™ AX7 series. Both variants meet identical parametric specifications for the 156.25 MHz LVDS oscillator configuration.

Q: Are moisture sensitivity or handling procedures different between these parts?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage, handling, or assembly.

Q: Can these parts be used interchangeably in existing assemblies?

A: Yes. Identical electrical performance, package dimensions, and compliance certifications ensure direct interchangeability without functional or reliability impact.