RS432AYSF3 Equivalent & Substitute Parts

Part Overview

The RS432AYSF3 is a shunt voltage reference integrated circuit manufactured by Runic Technology, classified as a Power Management (PMIC) component. This device functions as a programmable shunt voltage reference with a fixed output of 2.5V and maximum output capability of 36V, delivering up to 100mA of output current. The component is housed in a SOT-23-3 surface mount package and maintains a tolerance specification of ±0.5%.

The RS432AYSF3 is currently in active product status with 3913 units available in new original inventory. Identification of equivalent and substitute parts becomes necessary when primary component availability is limited, when supply chain optimization is required, or when design flexibility across compatible alternatives is beneficial for procurement strategies.

Substiute Parts

RS432AYSF3

Runic TechnologyIn Stock: 3924RS432AYSF3 Datasheet

Current PartRFQ

RS431AYSF3

Runic TechnologyIn Stock: 5353RS431AYSF3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RS432AYSF3 is determined by strict parametric equivalence across the following critical specifications:

Reference Type: Both the main part and substitute must function as shunt voltage references to maintain circuit topology compatibility.

Output Type: Programmable output capability must be preserved to ensure functional equivalence in applications requiring adjustable voltage reference settings.

Voltage Range: The output voltage range (2.5V minimum/fixed to 36V maximum) must be identical to support the same application voltage domains.

Current Rating: Output current capability of 100mA and cathode current of 500µA must be matched to prevent circuit performance degradation.

Tolerance Specification: The ±0.5% tolerance specification must be maintained to preserve accuracy requirements in precision applications.

Temperature Coefficient: The 50ppm/°C typical temperature coefficient must be equivalent to ensure thermal stability characteristics remain consistent.

Operating Temperature Range: The -40°C to 125°C operating temperature range must be supported to maintain environmental compliance.

Package Configuration: The SOT-23-3 surface mount package must be identical to ensure mechanical and electrical compatibility with existing PCB layouts.

Compliance Standards: RoHS3 compliance and REACH unaffected status must be maintained for regulatory and supply chain requirements.

Parameter Comparison

Engineering Selection Recommendations

The RS431AYSF3 is a parametric equivalent substitute for the RS432AYSF3. Both components are manufactured by Runic Technology and share identical electrical, mechanical, and compliance specifications across all critical parameters.

Compliance and Regulatory Status: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for industrial and commercial applications.

Product Status: Both components are in active product status, ensuring continued availability and manufacturer support.

Inventory Considerations: The RS431AYSF3 currently maintains higher inventory availability at 5300 units compared to 3913 units for the RS432AYSF3, providing supply chain flexibility.

Functional Equivalence: Complete parametric matching across voltage range, current ratings, tolerance, temperature coefficient, and operating temperature range ensures direct functional substitution without circuit redesign or performance compromise.

Package Compatibility: Identical SOT-23-3 surface mount packaging ensures mechanical compatibility with existing PCB layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the RS431AYSF3 be used as a direct replacement for the RS432AYSF3 in existing designs?

A: Yes. The RS431AYSF3 is a parametric equivalent with identical electrical specifications, tolerance, temperature coefficient, output voltage range, current ratings, and package configuration. Direct substitution is supported without circuit modification.

Q: Are there any differences in the operating temperature range between these parts?

A: No. Both the RS432AYSF3 and RS431AYSF3 operate across the identical temperature range of -40°C to 125°C (TA).

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: What is the significance of the ±0.5% tolerance specification?

A: The ±0.5% tolerance defines the accuracy of the voltage reference output. Both parts maintain this specification, ensuring equivalent precision performance in applications requiring stable reference voltages.

Q: Are the moisture sensitivity levels identical?

A: Yes. Both parts carry an MSL rating of 3 (168 Hours), requiring identical handling and storage protocols.

Q: Can these parts be used interchangeably in high-precision analog circuits?

A: Yes. The identical tolerance (±0.5%), temperature coefficient (50ppm/°C typical), and output specifications ensure equivalent performance in precision analog applications.

Q: What is the difference between the base part numbers RS432 and RS431?

A: The base part numbers differ, but the complete part numbers RS432AYSF3 and RS431AYSF3 are parametric equivalents with identical electrical and mechanical specifications. The base number variation does not affect functional compatibility.

Q: Is the SOT-23-3 package suitable for automated assembly?

A: Yes. Both parts use the SOT-23-3 surface mount package, which is standard for automated PCB assembly processes and compatible with standard pick-and-place equipment.

Q: What is the maximum output current capability?

A: Both parts deliver a maximum output current of 100mA, with a cathode current specification of 500µA.

Q: Are there any thermal performance differences between these substitutes?

A: No. Both parts maintain identical temperature coefficient specifications of 50ppm/°C typical, ensuring equivalent thermal stability across the operating temperature range.