STBV32-AP Equivalent & Substitute Parts

Part Overview

The STBV32-AP is an NPN bipolar junction transistor manufactured by STMicroelectronics, rated for 400 V collector-emitter breakdown voltage and 1.5 A maximum collector current in a Through Hole TO-92AP package. This device is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility within the specified parameter ranges while accommodating available packaging and manufacturer options.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	400	V
Current - Collector (Ic) (Max)	1.5	A
Power - Max	1.5	W
Vce Saturation (Max) @ Ib, Ic	1.5V @ 500mA, 1.5A	—
DC Current Gain (hFE) (Min) @ Ic, Vce	5 @ 1A, 2V	—
Operating Temperature (TJ)	150	°C
Mounting Type	Through Hole	—
Package / Case	TO-226-3, TO-92-3 (TO-226AA) Formed Leads	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the STBV32-AP are classified into two categories based on electrical parameter alignment:

Direct Substitutes (Electrical Equivalents): Parts that maintain identical or superior ratings across all critical parameters—collector-emitter breakdown voltage, maximum collector current, saturation voltage, and DC current gain—while accommodating different packaging formats or manufacturer sources.

Similar Substitutes (Enhanced Performance): Parts that exceed the original specifications in voltage rating or power dissipation, providing design margin while maintaining backward compatibility with the original application requirements.

The substitution logic is determined by the following key parameters:

Collector-emitter breakdown voltage (VCEO): minimum 400 V
Maximum collector current (Ic): 1.5 A
Saturation voltage (VCE sat): compatible with 1.5V @ 500mA, 1.5A specification
DC current gain (hFE): minimum 5 @ 1A, 2V
Operating temperature: 150°C (TJ)
Package compatibility: Through Hole TO-92-3 or TO-92AP configuration

Parameter Comparison

Parameter	STBV32-AP	STX616-AP	PHD13003C,412	PHE13003C,126	PHD13003C,126
Manufacturer	STMicroelectronics	STMicroelectronics	WeEn Semiconductors	WeEn Semiconductors	WeEn Semiconductors
Transistor Type	NPN	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	400 V	500 V	400 V	400 V	400 V
Current - Collector (Ic) (Max)	1.5 A	1.5 A	1.5 A	1.5 A	1.5 A
Power - Max	1.5 W	2.8 W	2.1 W	2.1 W	2.1 W
Vce Saturation (Max) @ Ib, Ic	1.5V @ 500mA, 1.5A	1V @ 200mA, 1A	1.5V @ 500mA, 1.5A	1.5V @ 500mA, 1.5A	1.5V @ 500mA, 1.5A
DC Current Gain (hFE) (Min) @ Ic, Vce	5 @ 1A, 2V	12 @ 500mA, 5V	5 @ 1A, 2V	5 @ 1A, 2V	5 @ 1A, 2V
Operating Temperature (TJ)	150°C	150°C	150°C	150°C	150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-226-3, TO-92-3	TO-226-3, TO-92-3	TO-226-3, TO-92-3	TO-226-3, TO-92-3	TO-226-3, TO-92-3
Product Status	Obsolete	Last Time Buy	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

Primary Substitute - STX616-AP (STMicroelectronics): This part maintains STMicroelectronics manufacturer continuity while providing enhanced electrical performance. The 500 V collector-emitter breakdown voltage exceeds the original 400 V specification, offering additional design margin. The 2.8 W power rating provides superior thermal capability compared to the 1.5 W original specification. The part is classified as Last Time Buy, indicating limited future availability. ROHS3 compliance and REACH Unaffected status align with the original part's regulatory standing.

Secondary Substitutes - PHD13003C,412 and PHE13003C,126 (WeEn Semiconductors): Both parts provide direct electrical equivalence to the STBV32-AP with identical voltage, current, and saturation specifications. These components are classified as Active, ensuring long-term procurement availability. The 2.1 W power rating provides moderate thermal improvement over the original 1.5 W specification. PHD13003C,412 is supplied in Bulk packaging, while PHE13003C,126 is supplied in Cut Tape (CT) format, accommodating different procurement workflows. Both maintain ROHS3 or RoHS compliance.

Tertiary Substitute - PHD13003C,126 (WeEn Semiconductors): This part is electrically identical to PHD13003C,412 and PHE13003C,126, differentiated only by Tape & Box (TB) packaging format. Active product status ensures availability. This option is suitable for applications requiring intermediate packaging quantities.

Frequently Asked Questions (FAQ)

Q: Can STX616-AP be used as a direct replacement for STBV32-AP?

A: Yes. STX616-AP meets all electrical requirements of STBV32-AP with enhanced voltage and power ratings. The 500 V breakdown voltage exceeds the 400 V requirement, and the 2.8 W power dissipation capability exceeds the 1.5 W original specification. Both parts use identical TO-92AP Through Hole packaging with formed leads.

Q: What is the difference between PHD13003C,412, PHE13003C,126, and PHD13003C,126?

A: These three WeEn Semiconductors parts are electrically identical, with differences limited to packaging format. PHD13003C,412 is supplied in Bulk packaging, PHE13003C,126 in Cut Tape (CT), and PHD13003C,126 in Tape & Box (TB). Selection depends on procurement quantity requirements and assembly workflow compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts maintain RoHS compliance status. STX616-AP, PHD13003C,412, and PHE13003C,126 are ROHS3 Compliant. PHD13003C,126 is RoHS Compliant. Both certifications satisfy current regulatory requirements.

Q: Does the higher power rating of STX616-AP affect circuit design?

A: No. The 2.8 W power rating of STX616-AP is a superior specification that does not require circuit modification. Applications designed for the 1.5 W STBV32-AP will operate within the thermal limits of STX616-AP without design changes.

Q: Can these substitutes be used interchangeably in existing PCB designs?

A: Yes. All substitute parts use identical Through Hole TO-92-3 or TO-92AP package configurations with formed leads, ensuring mechanical and electrical compatibility with existing PCB layouts and footprints.

Q: What is the inventory status of available substitutes?

A: STX616-AP has 12,350 units in stock (Last Time Buy status). PHD13003C,412 has 8,214 units (Active). PHE13003C,126 has 2,100 units (Active). PHD13003C,126 has 751 units (Active). Procurement decisions should account for Last Time Buy status of STX616-AP for long-term supply planning.

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