AX7DAF4-2100.0000C Equivalent & Substitute Parts

Part Overview

The AX7DAF4-2100.0000C is a 2.1 GHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC as part of the ClearClock™ AX7 series. This surface mount crystal oscillator operates at 3.3V 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 parts essential for ongoing design support and procurement.

Substiute Parts

AX7DAF4-2100.0000C

Abracon LLCIn Stock: 1029AX7DAF4-2100.0000C Datasheet

Current PartRFQ

AX7DBF1-2100.0000C

Abracon LLCIn Stock: 875AX7DBF1-2100.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AX7DAF4-2100.0000C must maintain compatibility across the following critical parameters:

• Frequency: 2.1 GHz (exact match required)
• Output Type: LVDS (exact match required)
• Package / Case: 8-SMD, No Lead (exact match required)
• Physical Dimensions: 0.276" L x 0.197" W, Height 0.075" max (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Function: Enable/Disable (exact match required)
• Series: ClearClock™ AX7 (same series preferred)
• RoHS & Compliance: ROHS3 Compliant, MSL 1 (exact match required)

The primary variable parameter allowing substitution is Supply Voltage, which may differ while maintaining electrical and mechanical compatibility with the application circuit design.

Parameter Comparison

Engineering Selection Recommendations

The AX7DBF1-2100.0000C serves as a manufacturer-recommended substitute for the discontinued AX7DAF4-2100.0000C. Both parts are ROHS3 compliant and carry MSL 1 rating, ensuring equivalent environmental and regulatory compliance. The primary distinction is the supply voltage specification: 3.3V for the main part versus 2.5V for the substitute.

Selection between these parts depends on the power supply architecture of the target application. If the circuit operates on a 3.3V rail, the AX7DAF4-2100.0000C remains the direct specification. If the circuit operates on a 2.5V rail or supports dual-voltage operation, the AX7DBF1-2100.0000C is the appropriate selection. Both parts maintain identical frequency, output type, package, thermal range, and frequency stability characteristics.

Frequently Asked Questions (FAQ)

Q: Can the AX7DBF1-2100.0000C replace the AX7DAF4-2100.0000C in all applications?

A: Substitution is valid only if the application circuit supports 2.5V operation. The supply voltage difference is the only electrical distinction between these parts. Verify that the power supply rail and all dependent circuitry can operate at 2.5V before implementing this substitute.

Q: Are the physical dimensions and package identical?

A: Yes. Both parts use the 8-SMD, No Lead package with identical dimensions of 0.276" L x 0.197" W (7.00mm x 5.00mm) and maximum seated height of 0.075" (1.90mm). PCB layout and footprint compatibility are maintained.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both the AX7DAF4-2100.0000C and AX7DBF1-2100.0000C are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Regulatory and environmental requirements are equivalent.

Q: What is the frequency stability specification for both parts?

A: Both parts maintain ±25ppm frequency stability across the -40°C ~ 85°C operating temperature range.

Q: Are there inventory considerations for this substitution?

A: The AX7DAF4-2100.0000C is discontinued at DiGi Electronics with 963 pcs listed as new original in stock. The AX7DBF1-2100.0000C substitute has 786 pcs available. Inventory status may change; verify current availability with your distributor.