AP432AWL-7 Equivalent & Substitute Parts

Part Overview

The AP432AWL-7 is a shunt voltage reference IC manufactured by Diodes Incorporated, designed for adjustable voltage regulation applications. This component features a fixed output of 1.24V with a maximum output capability of 20V and supports up to 200mA output current. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	AP432AWL-7
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Reference Type	Shunt
Output Type	Adjustable
Voltage - Output (Min/Fixed)	1.24V
Voltage - Output (Max)	20V
Current - Output	200mA
Tolerance	±0.5%
Temperature Coefficient	30ppm/°C
Current - Cathode	300µA
Operating Temperature	-20°C ~ 85°C (TA)
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the AP432AWL-7 is determined by the following critical parameters:

Core Electrical Specifications:

Reference Type: Shunt
Output Type: Adjustable
Voltage - Output (Min/Fixed): 1.24V
Voltage - Output (Max): 20V
Package / Case: TO-236-3, SC-59, SOT-23-3

Tolerance and Performance:

Tolerance: ±0.5% (primary specification)
Temperature Coefficient: 30ppm/°C
Current - Cathode: 300µA

Compliance Requirements:

RoHS Status: ROHS3 Compliant
Mounting Type: Surface Mount

Substitute parts must maintain compatibility across these parameters. The AP432AWG-7 provides parametric equivalence with identical electrical specifications. The LX432ISC and LX432CSC offer functional substitution with modified output current ratings and tolerance specifications, suitable for applications where the reduced current output and relaxed tolerance are acceptable.

Parameter Comparison

Parameter	AP432AWL-7	AP432AWG-7	LX432ISC	LX432CSC
Manufacturer	Diodes Incorporated	Diodes Incorporated	Microchip Technology	Microchip Technology
Reference Type	Shunt	Shunt	Shunt	Shunt
Output Type	Adjustable	Adjustable	Adjustable	Adjustable
Voltage - Output (Min/Fixed)	1.24V	1.24V	1.24V	1.24V
Voltage - Output (Max)	20V	20V	20V	20V
Current - Output	200mA	200mA	20mA	20mA
Tolerance	±0.5%	±0.5%	±1%	±1%
Current - Cathode	300µA	300µA	80µA	80µA
Operating Temperature	-20°C ~ 85°C	-20°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Obsolete	Active	Obsolete

Engineering Selection Recommendations

AP432AWG-7 (Diodes Incorporated): This part provides direct parametric equivalence to the AP432AWL-7 with identical electrical specifications and operating temperature range. Both parts are obsolete; however, AP432AWG-7 maintains higher inventory availability (24,300 units). Selection of this substitute preserves all original design specifications without modification.

LX432ISC (Microchip Technology): This part is active in production status, ensuring long-term availability and supply chain continuity. It maintains the same voltage output range (1.24V to 20V) and package compatibility. The reduced output current (20mA versus 200mA) and relaxed tolerance (±1% versus ±0.5%) require circuit evaluation to confirm suitability. The extended operating temperature range (-40°C to 85°C) provides improved thermal performance. Lower cathode current (80µA versus 300µA) reduces power consumption.

LX432CSC (Microchip Technology): This part offers the same electrical functionality as LX432ISC with identical voltage and current specifications. Product status is obsolete. Operating temperature range is limited to 0°C to 70°C, which may restrict use in extended temperature applications. Moisture sensitivity level is superior (MSL 1 versus MSL 3).

Frequently Asked Questions (FAQ)

Q: Can AP432AWG-7 be used as a direct replacement for AP432AWL-7?

A: Yes. AP432AWG-7 provides complete parametric equivalence with identical voltage output (1.24V to 20V), current output (200mA), tolerance (±0.5%), temperature coefficient (30ppm/°C), and operating temperature range (-20°C to 85°C). Both parts use the same package (TO-236-3, SC-59, SOT-23-3) and are ROHS3 compliant.

Q: What are the key differences between AP432AWL-7 and the Microchip LX432 series?

A: The primary differences are output current and tolerance. AP432AWL-7 supports 200mA output current with ±0.5% tolerance, while LX432ISC and LX432CSC support 20mA output current with ±1% tolerance. Cathode current is also reduced (80µA versus 300µA). All parts maintain the same voltage output range (1.24V to 20V) and package compatibility.

Q: Is LX432ISC suitable for applications requiring 200mA output current?

A: No. LX432ISC is rated for maximum 20mA output current. Applications requiring 200mA output current must use AP432AWL-7 or AP432AWG-7. Using LX432ISC in a 200mA application will exceed component ratings and cause failure.

Q: What is the advantage of selecting LX432ISC over AP432AWG-7?

A: LX432ISC is active in production status, ensuring long-term availability and supply chain support. AP432AWG-7 is obsolete. LX432ISC also provides extended operating temperature range (-40°C to 85°C) and lower power consumption (80µA cathode current). These advantages apply only to applications where the reduced output current (20mA) and relaxed tolerance (±1%) are acceptable.

Q: Are all substitute parts compatible with the same PCB layout?

A: Yes. All parts use identical packages (TO-236-3, SC-59, SOT-23-3) and are surface mount components. PCB layout and footprint remain unchanged across all substitutes.

Q: What compliance certifications apply to these parts?

A: All parts are ROHS3 compliant and REACH unaffected. All parts carry ECCN classification EAR99 and HTSUS code 8542.39.0001.

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