AP431AYG-13 Equivalent & Substitute Parts

Part Overview

The AP431AYG-13 is a shunt voltage reference IC manufactured by Diodes Incorporated, designed for adjustable voltage regulation applications. This component provides a fixed output voltage of 2.495V with a maximum output of 36V and supports 200 mA output current. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The AS431ARTR-G1 serves as the manufacturer-recommended substitute, offering improved specifications and active product status.

Substiute Parts

AP431AYG-13

Diodes IncorporatedIn Stock: 2220AP431AYG-13 Datasheet

Current PartRFQ

AS431ARTR-G1

Diodes IncorporatedIn Stock: 22177AS431ARTR-G1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AP431AYG-13 is determined by the following critical parameters:

• Reference Type: Shunt voltage reference architecture
• Output Type: Adjustable voltage output capability
• Package / Case: TO-243AA (SOT-89-3) for mechanical and thermal compatibility
• Tolerance: ±0.5% accuracy specification
• Voltage Range: Output voltage between 2.495V minimum and 36V maximum
• RoHS Compliance: ROHS3 Compliant status for regulatory alignment

The AS431ARTR-G1 qualifies as a direct substitute based on matching reference type, output type, package configuration, tolerance specification, and voltage range. While the AS431ARTR-G1 exhibits different output current (100 mA vs. 200 mA) and operating temperature range (-40°C to 125°C vs. -20°C to 85°C), these variations represent improvements in performance and environmental capability rather than incompatibilities.

Parameter Comparison

Engineering Selection Recommendations

The AS431ARTR-G1 is the manufacturer-recommended substitute for the obsolete AP431AYG-13. Both components maintain ROHS3 compliance and identical package configurations (TO-243AA / SOT-89-3), ensuring mechanical and thermal compatibility in existing PCB layouts.

The AS431ARTR-G1 offers active product status with improved availability (22,100 pieces in stock versus 2,200 pieces for the AP431AYG-13). The substitute component provides superior temperature coefficient performance (20 ppm/°C typical versus 30 ppm/°C) and extended operating temperature range (-40°C to 125°C versus -20°C to 85°C), supporting broader application environments.

The output current specification differs between the two parts (100 mA for AS431ARTR-G1 versus 200 mA for AP431AYG-13). Circuit designs requiring the full 200 mA output capability must evaluate whether the reduced current specification of the substitute part meets application requirements.

Frequently Asked Questions (FAQ)

Q: Can the AS431ARTR-G1 directly replace the AP431AYG-13 in existing designs?

A: The AS431ARTR-G1 provides direct mechanical and electrical substitution for the AP431AYG-13 in the same TO-243AA (SOT-89-3) package. Both components share identical reference type (shunt), output type (adjustable), voltage range (2.495V to 36V minimum/maximum), and tolerance specification (±0.5%). Circuit designs must confirm that the 100 mA output current specification of the AS431ARTR-G1 satisfies application requirements, as this differs from the 200 mA capability of the AP431AYG-13.

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

A: The primary differences are output current (200 mA versus 100 mA), temperature coefficient (30 ppm/°C versus 20 ppm/°C typical), operating temperature range (-20°C to 85°C versus -40°C to 125°C), and product status (obsolete versus active). The AS431ARTR-G1 demonstrates improved performance specifications and extended environmental capability.

Q: Are both parts packaged identically?

A: Yes. Both the AP431AYG-13 and AS431ARTR-G1 use the TO-243AA package configuration with SOT-89-3 supplier device package designation. PCB footprints and thermal characteristics remain compatible between the two components.

Q: What compliance certifications apply to both parts?

A: Both components maintain ROHS3 compliance and REACH Unaffected status. Both are classified under ECCN EAR99 and HTSUS 8542.39.0001.