STPS30150CG Equivalent & Substitute Parts

Part Overview

The STPS30150CG is a Schottky diode array manufactured by STMicroelectronics, configured as 1 pair common cathode with a maximum reverse voltage rating of 150 V and average rectified current of 15 A per diode. The device is packaged in TO-263-3 (D2PAK) surface mount configuration with 2 leads plus tab.

The STPS30150CG is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements where the original part is no longer readily available through standard distribution channels.

Substiute Parts

STPS30150CG

STMicroelectronicsIn Stock: 936STPS30150CG Datasheet

Current PartRFQ

STPS40150CG-TR

STMicroelectronicsIn Stock: 2322STPS40150CG-TR Datasheet

SimilarRFQ

VS-20CTQ150STRRHM3

Vishay General Semiconductor - Diodes DivisionIn Stock: 861VS-20CTQ150STRRHM3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STPS30150CG is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 150 V
• Mounting Type: Surface Mount
• Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Current Rating Consideration: The STPS30150CG specifies 15 A average rectified current per diode. Substitute parts may have equal or higher current ratings while maintaining all other electrical and mechanical specifications. Parts with lower current ratings are not suitable substitutes.

Forward Voltage Consideration: Forward voltage drop (Vf) at the specified current level must be evaluated for circuit performance impact. Substitute parts with different Vf characteristics may require circuit validation.

Reverse Leakage Consideration: Reverse leakage current specifications may vary between manufacturers and part numbers. Higher leakage values require evaluation for specific application requirements.

Two substitute parts meet the core substitution criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

STPS40150CG-TR (STMicroelectronics)

The STPS40150CG-TR is an active product from the same manufacturer as the original STPS30150CG. This part maintains identical electrical specifications for reverse voltage (150 V), forward voltage drop (920 mV), and fast recovery speed characteristics. The current rating is increased to 20 A per diode, providing higher current capacity than the original 15 A specification. This part is suitable for direct substitution in applications where the 15 A current requirement is met or where the higher 20 A rating provides design margin. The part is available in Cut Tape and Digi-Reel packaging formats. ROHS3 compliance and MSL 1 rating are maintained.

VS-20CTQ150STRRHM3 (Vishay General Semiconductor - Diodes Division)

The VS-20CTQ150STRRHM3 is an active product from Vishay with automotive qualification (AEC-Q101). This part maintains the 150 V reverse voltage specification and fast recovery speed. The current rating is 10 A per diode, which is lower than the original STPS30150CG specification of 15 A. This part is suitable for substitution only in applications where the circuit current requirement does not exceed 10 A per diode. The forward voltage drop is 880 mV at 10 A, which is lower than the original part. Reverse leakage current is higher at 25 µA compared to the original 6.5 µA specification. ROHS3 compliance and MSL 1 rating are maintained. The part is available in Tape & Reel packaging.

Frequently Asked Questions (FAQ)

Q: Can the STPS40150CG-TR be used as a direct replacement for the STPS30150CG?

A: Yes. The STPS40150CG-TR maintains identical reverse voltage (150 V), forward voltage drop (920 mV), and fast recovery speed specifications. The increased current rating of 20 A per diode (versus 15 A in the original) provides higher capacity. The part is pin-compatible and uses the same TO-263-3 D2PAK package. Both parts are from STMicroelectronics and maintain ROHS3 compliance.

Q: Can the VS-20CTQ150STRRHM3 be used as a direct replacement for the STPS30150CG?

A: The VS-20CTQ150STRRHM3 can be used as a substitute only if the circuit current requirement does not exceed 10 A per diode. The original STPS30150CG is rated for 15 A per diode. The VS-20CTQ150STRRHM3 maintains the 150 V reverse voltage and fast recovery speed specifications. The part is pin-compatible and uses the same TO-263-3 D2PAK package. Reverse leakage current is higher (25 µA versus 6.5 µA), which must be evaluated for specific circuit requirements.

Q: What is the difference in current rating between the substitute parts?

A: The STPS40150CG-TR is rated for 20 A per diode, the original STPS30150CG is rated for 15 A per diode, and the VS-20CTQ150STRRHM3 is rated for 10 A per diode. Selection depends on the actual circuit current requirement.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the TO-263-3 D2PAK package (2 Leads + Tab, TO-263AB). The parts are pin-compatible and can be used interchangeably from a mechanical and PCB layout perspective.

Q: What is the difference in reverse leakage current between the parts?

A: The STPS30150CG specifies 6.5 µA at 150 V, the STPS40150CG-TR specifies 8 µA at 150 V, and the VS-20CTQ150STRRHM3 specifies 25 µA at 150 V. Higher reverse leakage may impact circuit performance in applications sensitive to leakage current.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and have MSL 1 (Unlimited) moisture sensitivity level ratings.

Q: What is the product status of each part?

A: The STPS30150CG is obsolete. The STPS40150CG-TR and VS-20CTQ150STRRHM3 are both active products with current availability.