AP7361C-18E-13 Equivalent & Substitute Parts

Part Overview

The AP7361C-18E-13 is a linear voltage regulator IC from Diodes Incorporated, classified as a Power Management (PMIC) component. It delivers a fixed 1.8V output at 1A maximum current in a surface-mount SOT-223-3 package. The device is currently in active production status with 40,100 units in stock. Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is required while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value
Manufacturer	Diodes Incorporated
Part Number	AP7361C-18E-13
Category	Power Management (PMIC)
Package Type	SOT-223-3
Output Voltage (Fixed)	1.8V
Maximum Output Current	1A
Maximum Input Voltage	6V
Maximum Dropout Voltage	0.57V @ 1A (Typical)
Quiescent Current	80 µA
Operating Temperature Range	-40°C to 85°C
Protection Features	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the AP7361C-18E-13 are qualified based on the following electrical and mechanical parameters:

Fixed output voltage of 1.8V
Maximum output current of 1A
Maximum input voltage of 6V
Surface-mount SOT-223-3 package configuration
Operating temperature range of -40°C to 85°C
Over Current and Over Temperature protection features
Active product status
ROHS3 compliance

The identified substitutes (AP2114H-1.8TRG1 and AP2114HA-1.8TRG1) meet all core electrical specifications and package requirements. Variations in dropout voltage, quiescent current, PSRR characteristics, and moisture sensitivity level are within acceptable tolerances for linear regulator applications and do not prevent functional substitution.

Parameter Comparison

Parameter	AP7361C-18E-13	AP2114H-1.8TRG1	AP2114HA-1.8TRG1
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated
Output Voltage (Fixed)	1.8V	1.8V	1.8V
Maximum Output Current	1A	1A	1A
Maximum Input Voltage	6V	6V	6V
Dropout Voltage @ 1A	0.57V (Typical)	0.7V	0.7V
Quiescent Current	80 µA	75 µA	75 µA
Package Type	SOT-223-3	SOT-223-3	SOT-223-3
Operating Temperature Range	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Protection Features	Over Current, Over Temperature	Over Current, Over Temperature	Over Current, Over Temperature
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Inventory (Pcs)	40,100	77,785	30,400

Engineering Selection Recommendations

All three parts—AP7361C-18E-13, AP2114H-1.8TRG1, and AP2114HA-1.8TRG1—are active products from Diodes Incorporated with ROHS3 compliance and identical core electrical specifications. Selection between these parts is based on availability and supply chain requirements rather than functional differences.

The AP2114H-1.8TRG1 offers the highest inventory level (77,785 units), making it the preferred substitute when supply continuity is the primary concern. The AP2114HA-1.8TRG1 provides an alternative with comparable specifications and adequate stock (30,400 units).

Dropout voltage differences (0.57V for AP7361C-18E-13 versus 0.7V for both AP2114 variants) and quiescent current variations (80 µA versus 75 µA) are within normal operating tolerances for linear regulator applications and do not affect circuit functionality in standard 1.8V regulation applications.

Frequently Asked Questions (FAQ)

Q: Can AP2114H-1.8TRG1 and AP2114HA-1.8TRG1 be used interchangeably with AP7361C-18E-13?

A: Yes. Both substitute parts meet the electrical and mechanical requirements for direct substitution. They deliver the same fixed 1.8V output, support 1A maximum current, operate across the same temperature range, and use identical SOT-223-3 packaging. No circuit modifications are required.

Q: What is the significance of the higher dropout voltage in the AP2114 variants?

A: The AP2114H-1.8TRG1 and AP2114HA-1.8TRG1 have a maximum dropout voltage of 0.7V compared to 0.57V for the AP7361C-18E-13. This means the input voltage must be approximately 0.13V higher to maintain regulation at full 1A output. For most applications with adequate input voltage margin, this difference is not functionally significant.

Q: Are there package compatibility concerns?

A: No. All three parts use the SOT-223-3 surface-mount package with identical pinout and mechanical dimensions. PCB layout and component placement require no modification.

Q: What is the difference between AP2114H-1.8TRG1 and AP2114HA-1.8TRG1?

A: Both parts are electrically equivalent with identical output voltage, current rating, and operating specifications. The primary difference is moisture sensitivity level: AP2114H-1.8TRG1 has MSL 3 (168 hours), while AP2114HA-1.8TRG1 also has MSL 3 (168 hours). Selection between them is based on inventory availability and supply chain logistics.

Q: Are all parts RoHS compliant?

A: Yes. AP7361C-18E-13, AP2114H-1.8TRG1, and AP2114HA-1.8TRG1 are all ROHS3 compliant and suitable for applications requiring environmental compliance.

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