AX3DBF2-156.2500T3 Equivalent & Substitute Parts

Part Overview

The AX3DBF2-156.2500T3 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 housed in a 6-SMD, No Lead package. The part is Active status and ROHS3 compliant, making it suitable for telecommunications and high-speed data applications requiring precise frequency generation. Equivalent and substitute parts are identified for applications where supply constraints, lead time considerations, or design flexibility necessitate alternative sourcing options.

Substiute Parts

AX3DBF2-156.2500T3

Abracon LLCIn Stock: 850AX3DBF2-156.2500T3 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 AX3DBF2-156.2500T3 are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters (Must Match Exactly):

• Frequency: 156.25 MHz
• Output Type: LVDS
• Supply Voltage: 2.5V
• Function: Enable/Disable
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 6-SMD, No Lead
• Physical Dimensions: 0.126" L x 0.098" W (3.20mm x 2.50mm)

Allowable Variations:

• Current Supply (Max): Variations permitted within design margin
• Height - Seated (Max): Minor variations acceptable within PCB assembly constraints
• Packaging Format: Tape & Reel (TR) acceptable for equivalent functionality
• Manufacturer: Different manufacturers permitted if all electrical and mechanical parameters align

The identified substitute parts meet all critical parameters and maintain full functional equivalence with the original AX3DBF2-156.2500T3.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AX3DBF2-156.2500T3 (Abracon), CL3225-156.250-2.5-25-X-T-TR (Raltron), and SG3225VEN 156.250000M-DDGA3 (EPSON)—are Active status products with ROHS3 compliance and REACH Unaffected certification. They are functionally equivalent for 156.25 MHz LVDS oscillator applications operating at 2.5V with Enable/Disable control.

Selection between these parts should be based on:

Supply and Availability: Choose based on inventory levels and lead time requirements. Current stock levels are: Abracon (746 Pcs), Raltron (1060 Pcs), and EPSON (1221 Pcs).

Power Consumption: The SG3225VEN 156.250000M-DDGA3 (EPSON) offers the lowest maximum supply current at 25mA, matching the original AX3DBF2-156.2500T3 at 27mA. The CL3225-156.250-2.5-25-X-T-TR (Raltron) operates at 40mA maximum.

Physical Clearance: The AX3DBF2-156.2500T3 has a seated height of 0.043" (1.10mm), while both substitute parts measure 0.047" (1.20mm). Verify PCB assembly clearance if height-constrained applications are involved.

Packaging Format: All parts are available in Tape & Reel (TR) format suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the CL3225-156.250-2.5-25-X-T-TR (Raltron) be used as a direct replacement for the AX3DBF2-156.2500T3 (Abracon)?

A: Yes. Both parts share identical electrical specifications (156.25 MHz, LVDS output, 2.5V supply, ±25ppm stability, Enable/Disable function) and mechanical compatibility (6-SMD, No Lead package, 3.20mm x 2.50mm footprint). The maximum supply current difference (40mA vs. 27mA) is within typical design margins for power supply dimensioning.

Q: What is the significance of the 0.004" (0.10mm) height difference between the AX3DBF2-156.2500T3 and the substitute parts?

A: The AX3DBF2-156.2500T3 has a maximum seated height of 0.043" (1.10mm), while CL3225-156.250-2.5-25-X-T-TR and SG3225VEN 156.250000M-DDGA3 measure 0.047" (1.20mm). This 0.004" difference is negligible for most applications but should be verified in height-constrained designs, such as those with limited clearance above the PCB or in compact form factors.

Q: Are all three parts suitable for the same operating temperature range?

A: Yes. All three parts operate across the identical temperature range of -40°C to 85°C, ensuring thermal compatibility across standard industrial and commercial applications.

Q: What compliance certifications apply to all substitute parts?

A: All three parts are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001. They meet identical regulatory and environmental standards.

Q: Does the Enable/Disable function operate identically across all three parts?

A: Yes. All parts feature Enable/Disable functionality at 2.5V supply voltage. The AX3DBF2-156.2500T3 specifies a maximum disable current of 10µA; this parameter is not specified for the Raltron and EPSON substitutes but is typical for this product category.

Q: Can these parts be interchanged on existing PCBs without layout modifications?

A: Yes. All three parts share the same 6-SMD, No Lead package footprint (0.126" L x 0.098" W / 3.20mm x 2.50mm) and are surface mount compatible. No PCB layout changes are required for substitution.