AP1122YG-13 Equivalent & Substitute Parts

Part Overview

The AP1122YG-13 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 1.2V output at 1A current capacity in a SOT-89-3 surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity. The substitute part AZ1117CR-1.2TRG1 provides equivalent electrical performance with active product status and enhanced specifications.

Substiute Parts

AP1122YG-13

Diodes IncorporatedIn Stock: 2644AP1122YG-13 Datasheet

Current PartRFQ

AZ1117CR-1.2TRG1

Diodes IncorporatedIn Stock: 2132AZ1117CR-1.2TRG1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP1122YG-13 is determined by the following critical parameters:

• Fixed output voltage of 1.2V
• Output current capability of 1A minimum
• Surface mount package compatibility (TO-243AA / SOT-89-3)
• Positive output configuration
• Linear regulator topology

The AZ1117CR-1.2TRG1 meets all substitution criteria. Both parts share identical output voltage, current rating, and package form factor. The substitute maintains functional equivalence while offering active product status and improved electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AZ1117CR-1.2TRG1 is the direct substitute for the obsolete AP1122YG-13. Both components are manufactured by Diodes Incorporated and maintain identical electrical output specifications and package form factor. The substitute part offers active product status, ensuring long-term availability and supply chain continuity. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The AZ1117CR-1.2TRG1 demonstrates improved performance characteristics including lower quiescent current (6 mA vs. 10 mA), higher PSRR (70dB vs. 60dB), and extended input voltage rating (15V vs. 12V), providing enhanced design margin without requiring circuit modifications.

Frequently Asked Questions (FAQ)

Q: Can the AZ1117CR-1.2TRG1 directly replace the AP1122YG-13 without PCB modifications?

A: Yes. Both parts use identical TO-243AA (SOT-89-3) package geometry and pin configuration. Direct footprint compatibility is confirmed. No PCB layout changes are required.

Q: What are the key electrical differences between these parts?

A: The substitute offers lower quiescent current consumption (6 mA vs. 10 mA), higher power supply rejection ratio (70dB vs. 60dB), and higher maximum input voltage rating (15V vs. 12V). Output voltage and current ratings remain identical at 1.2V and 1A respectively.

Q: Why is the AP1122YG-13 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The AZ1117CR-1.2TRG1 represents the active equivalent from the same manufacturer, ensuring continued component availability.

Q: Are there any temperature range considerations for substitution?

A: The substitute supports an extended operating temperature range (-20°C ~ 125°C vs. 0°C ~ 125°C). This provides additional design flexibility for applications requiring lower temperature operation.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the AP1122YG-13 and AZ1117CR-1.2TRG1 are ROHS3 compliant and REACH unaffected, meeting current electronic component regulatory requirements.