AX7DCF4-644.53125C Equivalent & Substitute Parts

Part Overview

The AX7DCF4-644.53125C is a 644.53125 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount oscillator operates at 1.8V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package. The part is discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing design support and production continuity.

Substiute Parts

AX7DCF4-644.53125C

Abracon LLCIn Stock: 1223AX7DCF4-644.53125C Datasheet

Current PartRFQ

AX7DCF1-644.53125C

Abracon LLCIn Stock: 1219AX7DCF1-644.53125C Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AX7DCF4-644.53125C is determined by strict equivalence across the following critical parameters:

• Frequency: 644.53125 MHz (exact match required)
• Output Configuration: LVDS
• Supply Voltage: 1.8V
• Enable/Disable Function: Required
• Package Type: 8-SMD, No Lead
• Package Dimensions: 7.00mm x 5.00mm
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C
• Compliance: ROHS3 Compliant

The AX7DCF1-644.53125C qualifies as a parametric equivalent based on identical electrical specifications, frequency, output type, supply voltage, functional capability, and physical package dimensions. Both parts are manufactured by Abracon LLC within the same ClearClock™ AX7 series and share identical performance characteristics across all specified parameters.

Parameter Comparison

Engineering Selection Recommendations

The AX7DCF1-644.53125C is a direct parametric equivalent to the AX7DCF4-644.53125C. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part maintains identical electrical performance, frequency accuracy, supply current characteristics, and physical package specifications. Current inventory availability of the AX7DCF1-644.53125C (1164 Pcs) provides supply continuity for applications currently using the discontinued AX7DCF4-644.53125C.

Frequently Asked Questions (FAQ)

Q: Can the AX7DCF1-644.53125C be used as a direct replacement for the AX7DCF4-644.53125C?

A: Yes. Both parts are parametrically equivalent across all specified electrical and mechanical parameters, including frequency, output type, supply voltage, package dimensions, and performance characteristics.

Q: Are there any differences in the package footprint between these parts?

A: No. Both parts use identical 8-SMD, No Lead packaging with dimensions of 7.00mm x 5.00mm and maximum seated height of 1.90mm.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AX7DCF4-644.53125C and AX7DCF1-644.53125C are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8542.39.0001.

Q: What is the frequency stability specification for the substitute part?

A: The AX7DCF1-644.53125C maintains ±25ppm frequency stability, identical to the original part.

Q: Are the supply current specifications the same?

A: Yes. Maximum supply current is 70mA in active mode and 65mA in disable mode for both parts.