AX7DAF3-2100.0000C Equivalent & Substitute Parts

Part Overview

The AX7DAF3-2100.0000C 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, housed in an 8-SMD, No Lead package. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain design continuity and supply chain availability.

Substiute Parts

AX7DAF3-2100.0000C

Abracon LLCIn Stock: 764AX7DAF3-2100.0000C 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 AX7DAF3-2100.0000C must maintain compatibility across the following critical parameters:

• Frequency: 2.1 GHz (exact match required)
• Output Type: LVDS (signal integrity requirement)
• Package / Case: 8-SMD, No Lead (PCB layout compatibility)
• Physical Dimensions: 0.276" L x 0.197" W, 0.075" max height (footprint constraint)
• Operating Temperature Range: -40°C ~ 85°C (thermal specification)
• Frequency Stability: ±25ppm (timing accuracy)
• Series: ClearClock™ AX7 (product line consistency)
• RoHS Status: ROHS3 Compliant (regulatory requirement)
• Moisture Sensitivity Level: 1 (Unlimited) (handling and storage)

The primary differentiator among substitute parts is the supply voltage specification. While the main part operates at 3.3V, alternative models within the same series may operate at different voltage levels. Voltage compatibility must be verified against the target application's power supply architecture.

Parameter Comparison

Engineering Selection Recommendations

The AX7DBF1-2100.0000C serves as a direct functional substitute for the discontinued AX7DAF3-2100.0000C. Both parts are manufactured by Abracon LLC within the ClearClock™ AX7 series and share identical electrical and mechanical specifications with one exception: supply voltage.

The substitute part operates at 2.5V versus the main part's 3.3V specification. Selection between these parts depends entirely on the application's power supply architecture. If the target circuit provides 3.3V power rails, the original AX7DAF3-2100.0000C specification must be maintained. If the circuit operates on 2.5V power rails, the AX7DBF1-2100.0000C is the appropriate selection.

Both parts maintain ROHS3 compliance, REACH unaffected status, and identical regulatory classifications (EAR99, HTSUS 8542.39.0001). Both are classified as MSL 1 (Unlimited), indicating no moisture sensitivity constraints during handling and storage.

Frequently Asked Questions (FAQ)

Q: Can the AX7DBF1-2100.0000C replace the AX7DAF3-2100.0000C in all applications?

A: Substitution is valid only if the target application operates on 2.5V power rails. The substitute part is not compatible with circuits designed for 3.3V supply voltage. Verify the power supply specification of your circuit before selection.

Q: Are the physical dimensions and package footprints 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 reflow profiles remain unchanged.

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

A: Yes. Both the AX7DAF3-2100.0000C and AX7DBF1-2100.0000C are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8542.39.0001. Moisture sensitivity level is MSL 1 (Unlimited) for both parts.

Q: What is the frequency stability specification for these oscillators?

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

Q: Are there differences in current consumption between the main part and substitute?

A: No. Both parts specify maximum supply current of 70mA during normal operation and 65mA during disable mode.

Q: Which part should I select if my circuit design supports both 2.5V and 3.3V?

A: If your circuit design permits either voltage, select based on available power rail capacity and system architecture. The 2.5V variant (AX7DBF1-2100.0000C) may offer lower power consumption in systems with 2.5V primary rails. Verify power distribution and signal integrity requirements for your specific application.