AX7DCF2-156.2500C Equivalent & Substitute Parts

Part Overview

The AX7DCF2-156.2500C 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 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 alternatives essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Frequency	156.25 MHz
Output Type	LVDS
Supply Voltage	1.8V
Function	Enable/Disable
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
Maximum Supply Current	70mA
Package Type	8-SMD, No Lead
Package Dimensions	7.00mm x 5.00mm x 1.90mm (Max Height)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AX7DCF2-156.2500C is determined by strict equivalence across the following critical parameters:

Frequency: 156.25 MHz (exact match required)
Output Type: LVDS (exact match required)
Supply Voltage: 1.8V (exact match required)
Function: Enable/Disable (exact match required)
Frequency Stability: ±25ppm (exact match required)
Operating Temperature Range: -40°C ~ 85°C (exact match required)
Package Type: 8-SMD, No Lead (exact match required)
Package Dimensions: 7.00mm x 5.00mm (exact match required)

The AX7DCF1-156.2500C meets all substitution criteria as a parametric equivalent within the ClearClock™ AX7 series.

Parameter Comparison

Parameter	AX7DCF2-156.2500C	AX7DCF1-156.2500C
Manufacturer	Abracon LLC	Abracon LLC
Series	ClearClock™ AX7	ClearClock™ AX7
Frequency	156.25 MHz	156.25 MHz
Output Type	LVDS	LVDS
Supply Voltage	1.8V	1.8V
Function	Enable/Disable	Enable/Disable
Frequency Stability	±25ppm	±25ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Maximum Supply Current	70mA	70mA
Disable Current (Max)	65mA	65mA
Package Type	8-SMD, No Lead	8-SMD, No Lead
Package Dimensions	7.00mm x 5.00mm	7.00mm x 5.00mm
Maximum Height	1.90mm	1.90mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The AX7DCF1-156.2500C serves as a direct parametric equivalent to the AX7DCF2-156.2500C. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The AX7DCF1-156.2500C maintains identical electrical specifications, mechanical dimensions, and environmental ratings. Selection between these parts should be based on availability and procurement lead times, as both are functionally interchangeable within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the AX7DCF1-156.2500C be used as a direct replacement for the AX7DCF2-156.2500C?

A: Yes. The AX7DCF1-156.2500C is a parametric equivalent with identical frequency, output type, supply voltage, function, frequency stability, operating temperature range, and package specifications.

Q: Are there any differences in the electrical performance between these parts?

A: No. Both parts specify identical maximum supply current (70mA), disable current (65mA), and frequency stability (±25ppm).

Q: Do both parts have the same package dimensions?

A: Yes. Both parts use an 8-SMD, No Lead package measuring 7.00mm x 5.00mm with a maximum seated height of 1.90mm.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical moisture sensitivity levels.

Q: What is the moisture sensitivity level for these oscillators?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life under normal storage conditions.

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