AP7361C-33D-13 Equivalent & Substitute Parts

Part Overview

The AP7361C-33D-13 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed 3.3V output at 1A current capacity. This Surface Mount device in TO-252-3 (DPAK) packaging is classified as Active product status. Equivalent and substitute parts are identified based on matching electrical specifications, output configuration, and mechanical compatibility to support design flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	AP7361C-33D-13
Manufacturer	Diodes Incorporated
Category	Power Management (PMIC)
Output Voltage (Fixed)	3.3V
Output Current	1A
Input Voltage (Max)	6V
Voltage Dropout (Max)	0.36V @ 1A (Typ)
Quiescent Current (Iq)	80 µA
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63
Operating Temperature Range	-40°C ~ 85°C
Protection Features	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the AP7361C-33D-13 are identified based on the following critical parameters:

Output voltage matching: 3.3V fixed output
Output current capability: 1A minimum
Input voltage maximum: 6V or greater
Package compatibility: TO-252-3 (DPAK) form factor
Output configuration: Positive fixed regulator
Protection features: Over Current and Over Temperature protection
Product status: Active
RoHS compliance: ROHS3 Compliant

Two substitute groups are identified:

Group 1 (Direct Electrical Equivalents): AP7361C-33DR-13 shares identical electrical performance specifications with the main part, including 0.36V typical dropout voltage and 80 µA quiescent current.

Group 2 (Functional Equivalents): AP2114D-3.3TRG1 and AP2114DA-3.3TRG1 provide the same output voltage and current ratings with identical package form factor. These parts operate within the same temperature range and include equivalent protection features, though with higher dropout voltage (0.75V @ 1A) and quiescent current (90 µA).

Parameter Comparison

Parameter	AP7361C-33D-13	AP7361C-33DR-13	AP2114D-3.3TRG1	AP2114DA-3.3TRG1
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Output Voltage (Fixed)	3.3V	3.3V	3.3V	3.3V
Output Current	1A	1A	1A	1A
Input Voltage (Max)	6V	6V	6V	6V
Voltage Dropout (Max)	0.36V @ 1A (Typ)	0.36V @ 1A (Typ)	0.75V @ 1A	0.75V @ 1A
Quiescent Current (Iq)	80 µA	80 µA	90 µA	90 µA
PSRR	75dB ~ 55dB (1kHz ~ 10kHz)	75dB ~ 55dB (1kHz ~ 10kHz)	65dB (100Hz ~ 1kHz)	65dB (100Hz ~ 1kHz)
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature	Over Current, Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

AP7361C-33DR-13 is the primary direct substitute, offering identical electrical performance characteristics including dropout voltage and quiescent current specifications. This part is suitable for direct replacement in applications where performance metrics are critical.

AP2114D-3.3TRG1 and AP2114DA-3.3TRG1 are functional equivalents that satisfy core output voltage and current requirements. These parts exhibit higher dropout voltage and quiescent current compared to the AP7361 series. AP2114DA-3.3TRG1 provides MSL 1 (Unlimited) moisture sensitivity, matching the main part specification, while AP2114D-3.3TRG1 carries MSL 3 (168 Hours) classification.

Selection between substitute options depends on application requirements for power efficiency, thermal performance, and moisture handling during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can AP7361C-33DR-13 be used as a direct replacement for AP7361C-33D-13?

A: Yes. Both parts share identical electrical specifications including 0.36V typical dropout voltage, 80 µA quiescent current, and PSRR performance. Package form factor and pin configuration are identical (TO-252-3 DPAK).

Q: What are the key differences between AP7361 and AP2114 series substitutes?

A: The AP7361 series provides lower dropout voltage (0.36V typical) and lower quiescent current (80 µA) compared to the AP2114 series (0.75V dropout, 90 µA quiescent). Both series deliver identical 3.3V output at 1A in the same TO-252-3 package. The AP7361 series offers superior power efficiency in applications sensitive to dropout voltage performance.

Q: Are all substitute parts in the same package?

A: Yes. All listed parts use TO-252-3 (DPAK with 2 Leads + Tab) packaging, designated as SC-63. Pin configuration and PCB footprint compatibility are maintained across all substitutes.

Q: What is the significance of MSL (Moisture Sensitivity Level) differences?

A: MSL rating indicates moisture absorption limits during storage and assembly. AP7361C-33D-13, AP7361C-33DR-13, and AP2114DA-3.3TRG1 carry MSL 1 (Unlimited), allowing indefinite storage without baking. AP2114D-3.3TRG1 carries MSL 3 (168 Hours), requiring moisture control measures during extended storage periods.

Q: Do all substitute parts support the same operating temperature range?

A: Yes. All listed parts operate across -40°C to 85°C, maintaining consistent thermal performance specifications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

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