AP432RL-7 Equivalent & Substitute Parts

Part Overview

The AP432RL-7 is a shunt voltage reference IC manufactured by Diodes Incorporated, classified as a Power Management (PMIC) component. This adjustable reference provides a fixed output of 1.24V with a maximum output of 20V and supports 200 mA output current in an SC-59 surface mount package. The product is currently obsolete, making identification of equivalent and substitute parts essential for ongoing system support and component procurement.

Substiute Parts

AP432RL-7

Diodes IncorporatedIn Stock: 17962AP432RL-7 Datasheet

Current PartRFQ

AP432RL-7

Diodes IncorporatedIn Stock: 17962AP432RL-7 Datasheet

Parametric EquivalentRFQ

LX432CSC

Microchip TechnologyIn Stock: 3905LX432CSC Datasheet

MFR RecommendedRFQ

LX432ISC

Microchip TechnologyIn Stock: 4147LX432ISC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AP432RL-7 is determined by the following critical parameters that must align across equivalent parts:

• Reference Type: Shunt (fixed requirement)
• Output Type: Adjustable (fixed requirement)
• Voltage - Output (Min/Fixed): 1.24V (fixed requirement)
• Voltage - Output (Max): 20V (fixed requirement)
• Tolerance: ±1% (fixed requirement)
• Package / Case: TO-236-3, SC-59, SOT-23-3 (fixed requirement)
• Mounting Type: Surface Mount (fixed requirement)
• RoHS Status: ROHS3 Compliant (compliance requirement)

The substitute parts identified—LX432CSC and LX432ISC from Microchip Technology—share identical output voltage specifications, tolerance, reference type, and package compatibility. Both are manufactured in the same physical package format and meet the same RoHS compliance standards. Differences in output current capacity (20 mA vs. 200 mA) and operating temperature ranges represent design trade-offs that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

When selecting a substitute for the AP432RL-7, the following factors apply:

LX432ISC is the preferred substitute due to its active product status, extended operating temperature range (-40°C ~ 85°C), and unlimited moisture sensitivity level (MSL 1). This part maintains full compatibility with the original AP432RL-7 in terms of output voltage specifications, tolerance, and package format.

LX432CSC is an alternative substitute with identical electrical specifications but operates within a narrower temperature range (0°C ~ 70°C) and carries an obsolete product status. This part is suitable only for applications where the reduced temperature range does not conflict with system requirements.

Both Microchip substitutes feature reduced output current capacity (20 mA versus 200 mA). Applications requiring the full 200 mA output current of the original AP432RL-7 must evaluate whether the reduced current specification is compatible with the circuit design.

Frequently Asked Questions (FAQ)

Q: Can LX432ISC or LX432CSC directly replace AP432RL-7 in all applications?

A: Both parts share identical output voltage specifications (1.24V to 20V), tolerance (±1%), reference type (shunt), and package format (SC-59/SOT-23-3). However, the reduced output current (20 mA versus 200 mA) must be verified against circuit requirements. LX432ISC is preferred due to its active status and extended temperature range.

Q: What is the significance of the output current difference between AP432RL-7 (200 mA) and the Microchip substitutes (20 mA)?

A: Output current capacity determines the maximum load current the reference can supply. Applications designed for the AP432RL-7's 200 mA capability must confirm that the 20 mA limit of LX432ISC or LX432CSC is sufficient for the intended circuit function.

Q: Why is LX432ISC recommended over LX432CSC?

A: LX432ISC carries an active product status, ensuring continued availability and support. It also provides an extended operating temperature range (-40°C ~ 85°C) compared to LX432CSC (0°C ~ 70°C), offering greater flexibility for diverse application environments.

Q: Are the package dimensions identical between AP432RL-7 and the Microchip substitutes?

A: All three parts use the same package designation (TO-236-3, SC-59, SOT-23-3), confirming physical and pin compatibility for PCB layout and assembly purposes.

Q: What compliance certifications apply to these parts?

A: All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component procurement and use.