AX7PAF1-2100.0000C Equivalent & Substitute Parts

Part Overview

The AX7PAF1-2100.0000C is a 2.1 GHz XO (Standard) LVPECL 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

AX7PAF1-2100.0000C

Abracon LLCIn Stock: 783AX7PAF1-2100.0000C Datasheet

Current PartRFQ

AX7PBF1-2100.0000C

Abracon LLCIn Stock: 1193AX7PBF1-2100.0000C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AX7PAF1-2100.0000C is determined by the following critical parameters:

• Frequency: 2.1 GHz (exact match required)
• Output Type: LVPECL (exact match required)
• Package Type: 8-SMD, No Lead (exact match required)
• Package Dimensions: 7.00mm x 5.00mm footprint (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Enable/Disable Function: Present (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The AX7PBF1-2100.0000C qualifies as a substitute part because it maintains identical specifications across all critical parameters. The primary difference is the supply voltage specification (2.5V vs. 3.3V), which represents a design variation within the same product family rather than a functional incompatibility when the oscillator is operated within its rated voltage range.

Parameter Comparison

Engineering Selection Recommendations

The AX7PBF1-2100.0000C is a direct substitute for the discontinued AX7PAF1-2100.0000C. Both parts maintain ROHS3 compliance and identical mechanical compatibility. The voltage specification difference (2.5V vs. 3.3V) does not preclude substitution when the circuit design accommodates the lower voltage rating. Inventory availability favors the substitute part, with 1097 units in stock compared to 712 units of the original specification.

Frequently Asked Questions (FAQ)

Q: Can the AX7PBF1-2100.0000C replace the AX7PAF1-2100.0000C in existing designs?

A: Yes, provided the circuit design operates the oscillator within the 2.5V supply voltage specification. The substitute maintains identical frequency, output type, package dimensions, and thermal operating range.

Q: What is the significance of the voltage difference between these parts?

A: The AX7PAF1-2100.0000C is rated for 3.3V operation, while the AX7PBF1-2100.0000C is rated for 2.5V operation. This represents a design variant within the ClearClock™ AX7 series. Substitution requires verification that the power supply rail in the target application can accommodate the lower voltage specification.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 8-SMD, No Lead package with identical footprint dimensions of 7.00mm x 5.00mm and maximum seated height of 1.90mm. PCB layout and reflow profiles remain unchanged.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AX7PAF1-2100.0000C and AX7PBF1-2100.0000C are ROHS3 compliant with MSL rating 1 (Unlimited moisture sensitivity level).

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

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