PI49FCT3807AHEX Equivalent & Substitute Parts

Part Overview

The PI49FCT3807AHEX is a Clock Fanout Buffer (Distribution) IC manufactured by Diodes Incorporated, designed for 1:10 clock distribution at 66 MHz maximum frequency. This component operates with CMOS/TTL input and output compatibility in a 20-SSOP surface mount package. The part is currently classified as obsolete, making identification of suitable substitute components necessary for ongoing system support and new design implementations.

Substiute Parts

PI49FCT3807AHEX

Diodes IncorporatedIn Stock: 1164PI49FCT3807AHEX Datasheet

Current PartRFQ

PI49FCT3807DHEX

Diodes IncorporatedIn Stock: 17553PI49FCT3807DHEX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI49FCT3807AHEX is determined by the following critical parameters that must remain constant:

• Package / Case: 20-SSOP (0.209", 5.30mm Width) — physical and electrical compatibility
• Ratio - Input:Output: 1:10 — functional distribution capability
• Input/Output Type: CMOS, TTL — logic level compatibility
• Voltage - Supply: 3V ~ 3.6V — power supply compatibility
• Operating Temperature: -40°C ~ 85°C — thermal operating range
• Mounting Type: Surface Mount — PCB assembly compatibility

The PI49FCT3807DHEX qualifies as a direct substitute because it maintains all critical parameters while offering enhanced frequency capability (156 MHz vs. 66 MHz). The higher frequency rating provides backward compatibility for the original 66 MHz application while supporting higher-speed clock distribution requirements.

Parameter Comparison

Engineering Selection Recommendations

The PI49FCT3807DHEX is the manufacturer-recommended substitute for the obsolete PI49FCT3807AHEX. Both components maintain identical electrical and mechanical specifications across all critical parameters, ensuring direct pin-for-pin and functional compatibility.

The PI49FCT3807DHEX offers the additional advantage of active product status with higher inventory availability (17,486 pcs vs. 1,087 pcs), supporting long-term supply chain reliability. Both parts maintain ROHS3 compliance and identical thermal/voltage operating ranges, eliminating any redesign requirements for existing applications.

The enhanced frequency specification of the PI49FCT3807DHEX (156 MHz vs. 66 MHz) provides performance headroom for the original 66 MHz application while enabling support for higher-speed clock distribution in future designs without component substitution.

Frequently Asked Questions (FAQ)

Q: Can the PI49FCT3807DHEX directly replace the PI49FCT3807AHEX without PCB modifications?

A: Yes. Both components share identical package geometry (20-SSOP), pinout, voltage supply requirements (3V ~ 3.6V), and operating temperature range (-40°C ~ 85°C). No PCB layout changes are required.

Q: What is the primary difference between these two parts?

A: The maximum operating frequency differs: PI49FCT3807AHEX operates to 66 MHz, while PI49FCT3807DHEX operates to 156 MHz. All other electrical and mechanical specifications remain identical.

Q: Why is the PI49FCT3807AHEX classified as obsolete?

A: Product obsolescence is determined by the manufacturer based on market demand and production decisions. The PI49FCT3807DHEX serves as the active replacement in the 49FCT series.

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

A: No. Both components maintain identical RoHS3 compliance status, moisture sensitivity level (MSL 1 - Unlimited), and REACH unaffected status.

Q: What is the significance of the packaging designation "Tape & Reel (TR)" for the PI49FCT3807DHEX?

A: Tape & Reel packaging indicates the component is supplied in continuous tape format suitable for automated assembly equipment. This is standard for high-volume production and does not affect electrical or mechanical compatibility.

Q: Can the PI49FCT3807DHEX be used in applications requiring only 66 MHz operation?

A: Yes. The PI49FCT3807DHEX is fully backward compatible with 66 MHz applications. The higher frequency rating does not impose additional requirements on lower-speed designs.