AX7DBF4-160.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF4-160.0000C is a 160 MHz XO (Standard) LVDS oscillator manufactured by Abracon LLC from the ClearClock™ AX7 series. This component operates at 2.5V with Enable/Disable functionality in an 8-SMD, No Lead surface mount package. The part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications requiring 160 MHz LVDS clock generation.

Substiute Parts

AX7DBF4-160.0000C

Abracon LLCIn Stock: 1088AX7DBF4-160.0000C Datasheet

Current PartRFQ

511FBA160M000AAG

Skyworks Solutions Inc.In Stock: 948511FBA160M000AAG Datasheet

MFR RecommendedRFQ

591FB160M000DG

Skyworks Solutions Inc.In Stock: 982591FB160M000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AX7DBF4-160.0000C is determined by strict equivalence across the following critical parameters:

• Frequency: 160 MHz (exact match required)
• Output: LVDS (no alternative output types acceptable)
• Supply Voltage: 2.5V (exact match required)
• Function: Enable/Disable capability (required)
• Frequency Stability: ±25ppm (exact match required)
• Operating Temperature: -40°C ~ 85°C (minimum range required)
• Mounting: Surface Mount (required)
• Physical Footprint: 7.00mm x 5.00mm (required for PCB compatibility)
• Moisture Sensitivity: MSL 1 (required)

Both substitute parts meet these criteria. Package configuration differences (8-SMD vs. 6-SMD) and current consumption variations are secondary considerations that do not prevent functional substitution when PCB layout accommodates the alternative package.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products from Skyworks Solutions Inc., ensuring long-term availability and supply chain stability compared to the discontinued AX7DBF4-160.0000C.

The 511FBA160M000AAG (Si511 series) offers the lowest maximum supply current at 23mA, making it suitable for power-constrained applications. This part maintains all critical electrical parameters while reducing power consumption by approximately 67% relative to the main part.

The 591FB160M000DG (Si591 series) provides a direct current profile closer to the original specification at 100mA maximum supply current, with 75mA in disable mode. This part is appropriate for applications where power consumption is not a primary constraint.

Both substitutes feature reduced package complexity (6-SMD vs. 8-SMD) and lower seated height (1.80mm vs. 1.90mm), offering potential PCB layout improvements. PCB design verification is required to confirm compatibility with the alternative package footprint.

Frequently Asked Questions (FAQ)

Q: Can the 511FBA160M000AAG and 591FB160M000DG be used interchangeably with the AX7DBF4-160.0000C?

A: Both parts meet the core substitution criteria: 160 MHz frequency, LVDS output, 2.5V supply, Enable/Disable function, ±25ppm stability, and -40°C to 85°C operating range. The primary difference is current consumption. Selection depends on power budget requirements and PCB layout compatibility with the 6-SMD package.

Q: What is the impact of the package change from 8-SMD to 6-SMD?

A: The physical footprint dimensions (7.00mm x 5.00mm) remain identical, but the internal lead configuration differs. PCB layout and schematic connections must be verified against the specific pinout of the selected substitute part to ensure proper signal routing and power distribution.

Q: Are there any compliance or certification differences?

A: All three parts share EAR99 export classification and MSL 1 moisture sensitivity rating. The main part specifies ROHS3 compliance; compliance status for the substitute parts is not provided in available documentation.

Q: Which substitute should be selected for power-sensitive applications?

A: The 511FBA160M000AAG is recommended for applications prioritizing low power consumption, with maximum supply current of 23mA compared to 70mA for the original part.

Q: Which substitute should be selected for applications requiring current specifications closest to the original?

A: The 591FB160M000DG provides maximum supply current of 100mA, which is closer to the original 70mA specification than the 511FBA160M000AAG at 23mA.