S-873382EUP-APHT2U Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The S-873382EUP-APHT2U is an active linear voltage regulator IC manufactured by ABLIC Inc., designed for positive fixed 3.3V output applications requiring 30mA current capacity. This Surface Mount Device (SMD) in SOT-89-5 package integrates voltage detection and short circuit protection features, operating across the industrial temperature range of -40°C to 85°C. The part is ROHS3 compliant and carries unlimited moisture sensitivity level (MSL 1), making it suitable for standard manufacturing environments. Equivalent substitute parts are available from the same manufacturer series to support supply chain flexibility, design redundancy, and inventory optimization.

Key Parameters

Parameter	Value
Manufacturer	ABLIC Inc.
Category	Power Management (PMIC)
Output Voltage (Fixed)	3.3V
Output Current	30mA
Input Voltage (Max)	24V
Voltage Dropout (Max)	0.7V @ 30mA
Quiescent Current	8 µA
Package Type	SOT-89-5
Mounting Type	Surface Mount
Operating Temperature	-40°C to 85°C
Control Features	Voltage Detection
Protection Features	Short Circuit
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

All substitute parts listed are parametric equivalents from ABLIC Inc.'s S-87x series. Substitution eligibility is determined by strict matching of the following electrical and mechanical parameters:

Output voltage: 3.3V fixed
Output current capacity: 30mA
Maximum input voltage: 24V
Voltage dropout: 0.7V @ 30mA
Quiescent current: 8 µA
Package: SOT-89-5
Mounting type: Surface Mount
Operating temperature range: -40°C to 85°C
Control and protection features: Voltage Detection and Short Circuit Protection
Compliance: ROHS3, MSL 1

All five substitute parts meet these criteria identically and are therefore direct functional equivalents suitable for one-to-one replacement in circuit designs.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	Package	Operating Temp	RoHS Status	Inventory (Pcs)
S-873382EUP-APHT2U	ABLIC Inc.	3.3V	30mA	24V	0.7V @ 30mA	8 µA	SOT-89-5	-40°C to 85°C	ROHS3	828
S-873344AUP-OAHT2U	ABLIC Inc.	3.3V	30mA	24V	0.7V @ 30mA	8 µA	SOT-89-5	-40°C to 85°C	ROHS3	1827
S-873356EUP-APLT2U	ABLIC Inc.	3.3V	30mA	24V	0.7V @ 30mA	8 µA	SOT-89-5	-40°C to 85°C	ROHS3	1080
S-873372EUP-APET2U	ABLIC Inc.	3.3V	30mA	24V	0.7V @ 30mA	8 µA	SOT-89-5	-40°C to 85°C	ROHS3	3924
S-8733A0EUP-APFT2U	ABLIC Inc.	3.3V	30mA	24V	0.7V @ 30mA	8 µA	SOT-89-5	-40°C to 85°C	ROHS3	5963
S-8733B0EUP-APCT2U	ABLIC Inc.	3.3V	30mA	24V	0.7V @ 30mA	8 µA	SOT-89-5	-40°C to 85°C	ROHS3	10100

Engineering Selection Recommendations

All substitute parts are active products with identical electrical specifications and mechanical packaging. Selection among these equivalents should be based on:

Availability and Lead Time: Inventory levels vary across the substitute group. S-8733B0EUP-APCT2U offers the highest stock position (10,100 pcs), followed by S-8733A0EUP-APFT2U (5,963 pcs), providing superior supply chain security for high-volume production.

Compliance and Certification: All parts carry identical ROHS3 compliance and MSL 1 ratings, ensuring equivalent environmental and manufacturing process compatibility.

Product Status: All parts maintain active product status, confirming ongoing manufacturer support and long-term availability.

Packaging and Handling: Identical SOT-89-5 package specifications and unlimited moisture sensitivity level ensure direct PCB assembly compatibility without process modifications.

Frequently Asked Questions (FAQ)

Q: Can S-873382EUP-APHT2U be replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts are parametric equivalents with identical electrical performance (3.3V output, 30mA capacity, 0.7V dropout), identical package (SOT-89-5), and identical operating specifications. One-to-one replacement is supported without circuit modification.

Q: Are there any differences in pin configuration between the main part and substitutes?

A: No. All parts use the SOT-89-5 package with identical pin assignments. PCB layout and schematic connections require no changes.

Q: What is the significance of the different part number suffixes (e.g., APHT2U vs. OAHT2U)?

A: The suffixes represent internal ABLIC manufacturing variants within the same functional specification. These variants are electrically and mechanically equivalent and do not affect circuit performance or compatibility.

Q: Which substitute part should be selected for new designs?

A: Selection should prioritize parts with higher inventory availability for supply chain resilience. S-8733B0EUP-APCT2U and S-8733A0EUP-APFT2U are recommended for new designs due to superior stock positions.

Q: Are all parts suitable for industrial temperature range applications?

A: Yes. All parts operate across -40°C to 85°C, meeting industrial temperature requirements. Operating temperature specifications are identical across the entire group.

Q: Do all substitute parts carry the same compliance certifications?

A: Yes. All parts are ROHS3 compliant with MSL 1 rating. Compliance documentation is equivalent across all parts.

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