AX7DAF4-156.2500C Equivalent & Substitute Parts

Part Overview

The AX7DAF4-156.2500C is a 156.25 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount oscillator operates at 3.3V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7DAF4-156.2500C

Abracon LLCIn Stock: 854AX7DAF4-156.2500C Datasheet

Current PartRFQ

AX7DAF1-156.2500

Abracon LLCIn Stock: 911AX7DAF1-156.2500 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AX7DAF1-156.2500 qualifies as a parametric equivalent to the AX7DAF4-156.2500C based on the following critical substitution criteria:

Electrical Parameters (Identical):

• Frequency: 156.25 MHz
• Output: LVDS
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Frequency Stability: ±25ppm
• Operating Temperature: -40°C ~ 85°C
• Maximum Supply Current: 70mA
• Maximum Disable Current: 65mA

Mechanical Parameters (Identical):

• Package: 8-SMD, No Lead
• Dimensions: 7.00mm L x 5.00mm W x 1.90mm H (max)
• Mounting: Surface Mount

Compliance Parameters (Identical):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity: MSL 1 (Unlimited)
• REACH Status: REACH Unaffected

The primary difference between these parts is product status and packaging format, not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The AX7DAF1-156.2500 is a direct parametric equivalent suitable for replacing the discontinued AX7DAF4-156.2500C. Both parts share identical electrical specifications, mechanical dimensions, and compliance certifications. The AX7DAF1-156.2500 maintains active product status with Abracon LLC, ensuring continued availability and technical support.

Selection between these parts should be based on packaging requirements. The AX7DAF4-156.2500C is supplied in bulk packaging, while the AX7DAF1-156.2500 is supplied in strip packaging. Both formats are compatible with standard surface mount assembly processes. The AX7DAF1-156.2500 offers superior long-term availability due to its active product status.

Frequently Asked Questions (FAQ)

Q: Can the AX7DAF1-156.2500 directly replace the AX7DAF4-156.2500C in existing designs?

A: Yes. Both parts are electrically and mechanically identical. They share the same frequency (156.25 MHz), output type (LVDS), supply voltage (3.3V), package dimensions (7.00mm x 5.00mm x 1.90mm), and all electrical performance parameters. No circuit modifications are required.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and packaging format. The AX7DAF4-156.2500C is discontinued and supplied in bulk packaging. The AX7DAF1-156.2500 is an active product supplied in strip packaging. All electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance, MSL 1 moisture sensitivity rating, and REACH unaffected status. They meet the same regulatory requirements.

Q: Which part should be selected for new designs?

A: The AX7DAF1-156.2500 is recommended for new designs due to its active product status, ensuring ongoing availability and manufacturer support.

Q: Does packaging format affect circuit performance?

A: No. Strip and bulk packaging formats do not affect electrical performance or reliability. The selection depends on assembly process requirements and inventory management preferences.