AP7361C-33DR-13 Equivalent & Substitute Parts

Part Overview

The AP7361C-33DR-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. Substitute parts are identified when inventory constraints, lead time requirements, or specific application parameters necessitate alternative component selection while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
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	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

Substitute Part Grouping Explanation

Substitute parts for the AP7361C-33DR-13 are grouped based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

Output voltage: 3.3V fixed
Output current capacity: 1A
Input voltage maximum: 6V
Package type: TO-252-3 (DPAK)
Mounting type: Surface Mount
Operating temperature range: -40°C ~ 85°C
Protection features: Over Current and Over Temperature

Substitute Classification:

Group 1 - Direct Parametric Equivalents (AP7361 Series): AP7361C-33D-13 shares identical electrical specifications including voltage dropout (0.36V @ 1A Typ), quiescent current (80 µA), and PSRR characteristics. Packaging and thermal performance are equivalent.

Group 2 - Functional Equivalents with Parameter Variance (AP2114 Series): AP2114D-3.3TRG1 and AP2114DA-3.3TRG1 maintain core output specifications (3.3V, 1A) and package compatibility but exhibit higher voltage dropout (0.75V @ 1A) and quiescent current (90 µA). PSRR performance differs at 65dB (100Hz ~ 1kHz).

Parameter Comparison

Parameter	AP7361C-33DR-13	AP7361C-33D-13	AP2114D-3.3TRG1	AP2114DA-3.3TRG1
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Output Voltage	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	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
MSL Rating	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)	1 (Unlimited)
Inventory Status	1082 Pcs New Original	805 Pcs New Original	90145 Pcs New Original	3900 Pcs New Original

Engineering Selection Recommendations

AP7361C-33D-13 is the primary substitute for AP7361C-33DR-13. Both parts are Active status products with identical electrical performance specifications. The difference is packaging format (Tape & Reel designation variant). Selection between these two is determined by tape reel specifications and procurement requirements rather than functional parameters.

AP2114D-3.3TRG1 and AP2114DA-3.3TRG1 are functional equivalents suitable for applications where higher voltage dropout and quiescent current are acceptable. Both maintain ROHS3 compliance and identical operating temperature range. AP2114DA-3.3TRG1 offers MSL-1 rating equivalent to the main part, while AP2114D-3.3TRG1 carries MSL-3 classification. Selection among AP2114 variants depends on moisture sensitivity requirements and storage conditions.

All substitute parts maintain identical package footprint (TO-252-3, DPAK) and are compatible with existing PCB layouts designed for AP7361C-33DR-13.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are electrically and mechanically identical. The designation difference reflects tape reel packaging format only. PCB layout, thermal performance, and electrical characteristics are equivalent.

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

A: The AP7361 series exhibits lower voltage dropout (0.36V @ 1A Typ) and lower quiescent current (80 µA) compared to AP2114 series (0.75V @ 1A and 90 µA respectively). AP7361 also provides superior PSRR performance. AP2114 series is suitable for applications where these performance differences are not critical.

Q: Are all substitute parts pin-compatible with the original part?

A: Yes. All listed substitutes use TO-252-3 (DPAK) packaging with identical pin configuration and footprint. Direct PCB substitution is possible without layout modifications.

Q: What is the significance of MSL rating differences?

A: Moisture Sensitivity Level (MSL) indicates maximum storage duration at specified humidity before component baking is required. AP7361C-33DR-13 and AP2114DA-3.3TRG1 carry MSL-1 (Unlimited storage). AP2114D-3.3TRG1 carries MSL-3 (168 hours maximum). Selection depends on storage and handling conditions in your supply chain.

Q: Can AP2114 series be used in high-noise applications?

A: AP7361 series provides superior PSRR (75dB ~ 55dB at 1kHz ~ 10kHz) compared to AP2114 series (65dB at 100Hz ~ 1kHz). For applications requiring maximum noise rejection, AP7361 series is preferred.

Q: Are all parts REACH compliant?

A: Yes. All listed parts carry REACH Unaffected status and ROHS3 compliance certification.

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