AX7DBF4-270.0000C Equivalent & Substitute Parts

Part Overview

The AX7DBF4-270.0000C is a 270 MHz XO (Standard) LVDS Oscillator manufactured by Abracon LLC, part of the ClearClock™ AX7 series. This surface mount oscillator operates at 2.5V with Enable/Disable functionality and is housed in an 8-SMD, No Lead package. The product is discontinued at DiGi Electronics, making identification of compatible substitute parts essential for ongoing design support and procurement.

Substiute Parts

AX7DBF4-270.0000C

Abracon LLCIn Stock: 1084AX7DBF4-270.0000C Datasheet

Current PartRFQ

591FB270M000DG

Skyworks Solutions Inc.In Stock: 1059591FB270M000DG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AX7DBF4-270.0000C is determined by strict alignment of the following electrical and mechanical parameters:

• Frequency: 270 MHz (exact match required)
• Output Type: LVDS (exact match required)
• Supply Voltage: 2.5V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Operating Temperature Range: -40°C ~ 85°C (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Footprint: 7.00mm x 5.00mm (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The substitute part 591FB270M000DG from Skyworks Solutions Inc. meets all critical electrical specifications. Package configuration differs (6-SMD vs. 8-SMD), but both are surface mount, No Lead packages with identical footprint dimensions and compatible pinout for LVDS oscillator applications.

Parameter Comparison

Engineering Selection Recommendations

The 591FB270M000DG from Skyworks Solutions Inc. is the qualified substitute for the discontinued AX7DBF4-270.0000C. Both parts are ROHS3 compliant and carry identical export classifications (EAR99, HTSUS 8542.39.0001). The Skyworks part is currently in active production status with confirmed inventory availability.

The 591FB270M000DG operates within the same electrical envelope as the original part. Maximum supply current is higher (100mA vs. 70mA), but this represents a conservative design margin and does not preclude substitution in applications designed for the original part. The package configuration change from 8-SMD to 6-SMD does not affect electrical compatibility; both are surface mount, No Lead packages with identical footprint dimensions (7.00mm x 5.00mm) and compatible pinout for LVDS oscillator circuits.

Frequently Asked Questions (FAQ)

Q: Can the 591FB270M000DG be used as a direct replacement for the AX7DBF4-270.0000C?

A: Yes. Both parts meet identical electrical specifications for frequency (270 MHz), output type (LVDS), supply voltage (2.5V), function (Enable/Disable), frequency stability (±25ppm), and operating temperature range (-40°C ~ 85°C). Physical footprint dimensions are identical (7.00mm x 5.00mm). The package configuration differs (6-SMD vs. 8-SMD), but both are surface mount, No Lead packages with compatible pinout for LVDS applications.

Q: What is the difference between the 8-SMD and 6-SMD packages?

A: The difference is in the number of solder pads and internal lead configuration. Both packages occupy the same footprint (7.00mm x 5.00mm) and are compatible with identical PCB layouts. The 6-SMD package (591FB270M000DG) is slightly lower in profile (1.80mm vs. 1.90mm seated height), which may provide a minor advantage in space-constrained designs.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity rating, and share identical export classifications (EAR99, HTSUS 8542.39.0001).

Q: What is the current consumption difference, and does it affect substitution?

A: The 591FB270M000DG has a maximum supply current of 100mA compared to 70mA for the AX7DBF4-270.0000C. This difference reflects design margin and does not preclude substitution. Applications designed for the original part will operate within the electrical specifications of the substitute.

Q: Is the Skyworks part currently available?

A: Yes. The 591FB270M000DG is in active production status with confirmed inventory availability (1049 pcs reported in stock).