AX3DBF3-156.2500T3 Equivalent & Substitute Parts

Part Overview

The AX3DBF3-156.2500T3 is a 156.25 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC from the ClearClock™ AX3 series. This surface mount crystal oscillator operates at 2.5V with Enable/Disable functionality and is designed for applications requiring precise frequency generation with LVDS output. The part is Active status and widely used in telecommunications and data center infrastructure. Substitute parts are identified when component availability is limited or supply chain requirements necessitate alternative sourcing from qualified manufacturers.

Substiute Parts

AX3DBF3-156.2500T3

Abracon LLCIn Stock: 1152AX3DBF3-156.2500T3 Datasheet

Current PartRFQ

CL3225-156.250-2.5-25-X-T-TR

Raltron ElectronicsIn Stock: 1141CL3225-156.250-2.5-25-X-T-TR Datasheet

DirectRFQ

SG3225VEN 156.250000M-DDGA3

EPSONIn Stock: 1263SG3225VEN 156.250000M-DDGA3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX3DBF3-156.2500T3 are qualified based on the following critical parameters:

• Frequency: 156.25 MHz (exact match required)
• Output: LVDS (exact match required)
• Supply Voltage: 2.5V (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Function: Enable/Disable (exact match required)
• Operating Temperature: -40°C ~ 85°C (exact match required)
• Package: 6-SMD, No Lead (exact match required)
• Physical Dimensions: 3.20mm x 2.50mm (exact match required)
• Compliance: ROHS3 Compliant, MSL 1 (exact match required)

The identified substitutes meet all electrical and mechanical parameters. Variations in maximum supply current and seated height are within acceptable tolerances for this product category and do not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

All three parts are Active status products with ROHS3 compliance and MSL 1 rating, confirming their suitability for production use. Selection between the main part and substitutes should be based on:

• Supply availability and lead time requirements
• Current consumption constraints: The AX3DBF3-156.2500T3 and SG3225VEN 156.250000M-DDGA3 offer lower maximum supply current (27mA and 25mA respectively) compared to the CL3225-156.250-2.5-25-X-T-TR (40mA). Applications with strict power budgets should prioritize the EPSON or Abracon options.
• PCB height clearance: The AX3DBF3-156.2500T3 has a maximum seated height of 1.10mm, while both substitutes measure 1.20mm. Applications with limited vertical space should prioritize the Abracon part.
• Packaging format: The CL3225-156.250-2.5-25-X-T-TR is supplied in Tape & Reel format, while packaging information for the main part is not specified in the provided data.

Frequently Asked Questions (FAQ)

Q: Can the CL3225-156.250-2.5-25-X-T-TR replace the AX3DBF3-156.2500T3 in my design?

A: Yes. Both parts share identical electrical specifications (156.25 MHz, LVDS output, 2.5V supply, ±25ppm stability, Enable/Disable function, -40°C to 85°C operating range) and mechanical compatibility (6-SMD No Lead package, 3.20mm x 2.50mm footprint). The CL3225 has a higher maximum supply current (40mA vs 27mA) and slightly greater seated height (1.20mm vs 1.10mm), which may be relevant for power-constrained or space-limited applications.

Q: Can the SG3225VEN 156.250000M-DDGA3 replace the AX3DBF3-156.2500T3?

A: Yes. The EPSON part meets all electrical and mechanical requirements. It offers the lowest maximum supply current (25mA) among the three options, making it advantageous for power-sensitive applications. Seated height is 1.20mm, identical to the Raltron substitute.

Q: What are the key compatibility criteria for these oscillators?

A: Compatibility is determined by frequency (156.25 MHz), output type (LVDS), supply voltage (2.5V), frequency stability (±25ppm), function (Enable/Disable), operating temperature range (-40°C to 85°C), and package format (6-SMD No Lead, 3.20mm x 2.50mm). All three parts meet these criteria.

Q: Are there differences in compliance or certifications?

A: All three parts are ROHS3 compliant with MSL 1 rating and REACH Unaffected status. No compliance differences exist between the main part and substitutes.

Q: Which part should I select for a new design?

A: Selection depends on application-specific requirements. For lowest power consumption, choose the SG3225VEN 156.250000M-DDGA3 (25mA). For minimum PCB height, choose the AX3DBF3-156.2500T3 (1.10mm). For general-purpose applications with standard availability, any of the three parts are functionally equivalent.