PI49FCT32803QEX Equivalent & Substitute Parts

Part Overview

The PI49FCT32803QEX is an active Clock/Timing fanout buffer (distribution) IC manufactured by Diodes Incorporated. This 1:7 clock buffer operates at a maximum frequency of 133 MHz and is designed for CMOS and TTL input/output compatibility. The device is housed in a 16-SSOP surface mount package and maintains an operating temperature range of -40°C to 85°C. As an active product with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), substitute parts may be required due to inventory constraints, design optimization for specific output requirements, or application-specific fanout needs.

Substiute Parts

PI49FCT32803QEX

Diodes IncorporatedIn Stock: 26249PI49FCT32803QEX Datasheet

Current PartRFQ

PI49FCT32802QEX

Diodes IncorporatedIn Stock: 15922PI49FCT32802QEX Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PI49FCT32803QEX is determined by the following critical parameters that must remain constant or compatible:

• Frequency - Max: 133 MHz (minimum requirement)
• Input/Output Type: CMOS, TTL compatibility
• Voltage - Supply: 2.97V ~ 3.63V range
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-SSOP (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• MSL Rating: 1 (Unlimited)

The PI49FCT32802QEX qualifies as a parametric equivalent substitute. While it features a 1:5 input:output ratio instead of 1:7, all other electrical, thermal, mechanical, and compliance parameters remain identical. This substitution is valid for applications requiring fewer output channels while maintaining identical signal integrity, timing performance, and environmental specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the PI49FCT32803QEX and PI49FCT32802QEX are active products with identical compliance certifications (ROHS3 Compliant, REACH Unaffected, EAR99 classification). Selection between these parts depends solely on the required number of output channels:

• PI49FCT32803QEX: Select when 7 output channels are required
• PI49FCT32802QEX: Select when 5 output channels are required

Both devices maintain identical electrical performance, thermal characteristics, and environmental ratings. The choice is determined by circuit design requirements for fanout distribution, not by performance or reliability considerations.

Frequently Asked Questions (FAQ)

Q: Can PI49FCT32802QEX replace PI49FCT32803QEX in all applications?

A: No. The PI49FCT32802QEX provides 5 output channels versus 7 output channels on the PI49FCT32803QEX. Substitution is valid only if your circuit design requires 5 or fewer clock distribution outputs. If your design requires all 7 outputs, this substitute is not compatible.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both devices operate at 133 MHz maximum frequency, share identical supply voltage ranges (2.97V ~ 3.63V), support CMOS and TTL input/output, and maintain the same operating temperature range (-40°C ~ 85°C).

Q: Do both parts use the same package?

A: Yes. Both the PI49FCT32803QEX and PI49FCT32802QEX use the 16-SSOP (0.154", 3.90mm Width) surface mount package. PCB layout and footprint compatibility are identical.

Q: What is the difference in compliance between these parts?

A: There is no difference. Both parts are ROHS3 Compliant, REACH Unaffected, classified as EAR99, and carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: Can I use PI49FCT32803QEX as a substitute for PI49FCT32802QEX?

A: Yes. The PI49FCT32803QEX can substitute for PI49FCT32802QEX in applications requiring 5 output channels. The additional 2 output channels remain unused but do not affect circuit operation or performance.