VS-30CPQ035PBF Equivalent & Substitute Parts

Part Overview

The VS-30CPQ035PBF is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 35 V DC reverse voltage and 15 A average rectified current per diode. The device is packaged in a TO-247-3 through-hole format and is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing production and maintenance applications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	540 mV @ 15 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1.75 mA @ 35 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-247-3
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the VS-30CPQ035PBF is determined by the following critical parameters: diode configuration (1 Pair Common Cathode), technology (Schottky), package type (TO-247-3 through-hole), and electrical ratings within acceptable operating margins.

The substitute parts are grouped into two categories based on their electrical characteristics relative to the main part:

Direct Electrical Equivalents: Parts that maintain the same voltage and current ratings or provide enhanced performance within the same operational envelope. These parts preserve the original design intent and require no circuit modifications.

Enhanced Performance Alternatives: Parts that exceed the original voltage or current specifications, providing design margin improvements. These parts are suitable for applications where the original specifications are met or exceeded.

The following parameters establish substitution validity:

Diode Configuration: Must be 1 Pair Common Cathode
Technology: Must be Schottky
Package / Case: Must be TO-247-3
Voltage - DC Reverse (Vr) (Max): Must equal or exceed 35 V
Current - Average Rectified (Io) (per Diode): Must equal or exceed 15 A
Mounting Type: Must be Through Hole
RoHS Status: Must be ROHS3 Compliant

Parameter Comparison

Parameter	VS-30CPQ035PBF (Main)	VS-30CPQ035-N3	STPS3045CW	STPS60L30CW	DSSK80-003B
Manufacturer	Vishay	Vishay	STMicroelectronics	STMicroelectronics	IXYS
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	35 V	35 V	45 V	30 V	30 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	15 A	30 A	40 A
Voltage - Forward (Vf) (Max) @ If	540 mV @ 15 A	680 mV @ 30 A	570 mV @ 15 A	460 mV @ 30 A	480 mV @ 40 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1.75 mA @ 35 V	1.75 mA @ 35 V	200 µA @ 45 V	4 mA @ 30 V	40 mA @ 30 V
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 200°C	-55°C ~ 150°C	-55°C ~ 150°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-247-3	TO-247-3	TO-247-3	TO-247-3	TO-247-3
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

VS-30CPQ035-N3 (Vishay): This part is the direct Vishay equivalent with active product status. It maintains identical diode configuration, voltage rating, and current rating as the obsolete VS-30CPQ035PBF. Both parts are manufactured by the same supplier and carry ROHS3 compliance. The VS-30CPQ035-N3 is the primary replacement for direct substitution in existing designs.

STPS3045CW (STMicroelectronics): This part provides enhanced voltage rating at 45 V while maintaining the 15 A current specification. It is suitable for applications requiring additional voltage margin. The part carries active product status and ROHS3 compliance. The maximum junction temperature extends to 200°C, providing thermal design flexibility.

STPS60L30CW (STMicroelectronics): This part offers enhanced current capability at 30 A while operating at 30 V. It is applicable to designs where increased current capacity is beneficial within the voltage envelope. The part has active product status, ROHS3 compliance, and demonstrates superior forward voltage characteristics at higher current levels.

DSSK80-003B (IXYS): This part provides the highest current rating at 40 A with a 30 V voltage specification. It is suitable for high-current applications where the original 15 A specification is insufficient. The part carries active product status and ROHS3 compliance. Selection of this part requires verification that the 30 V rating meets circuit requirements.

All substitute parts maintain through-hole TO-247-3 packaging, fast recovery Schottky technology, and ROHS3 compliance, ensuring compatibility with existing PCB layouts and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can VS-30CPQ035-N3 be used as a direct replacement for VS-30CPQ035PBF?

A: Yes. The VS-30CPQ035-N3 maintains identical electrical specifications for voltage rating (35 V), current rating (15 A per diode), diode configuration (1 Pair Common Cathode), and package type (TO-247-3). The primary difference is product status: VS-30CPQ035-N3 is active while VS-30CPQ035PBF is obsolete. No circuit modifications are required.

Q: What is the difference between the substitute parts in terms of electrical performance?

A: The substitute parts differ in voltage and current ratings. VS-30CPQ035-N3 matches the original specifications exactly. STPS3045CW increases voltage rating to 45 V while maintaining 15 A current. STPS60L30CW increases current to 30 A at 30 V. DSSK80-003B provides the highest current at 40 A with 30 V rating. Selection depends on circuit requirements and available design margin.

Q: Are all substitute parts compatible with the original PCB layout?

A: Yes. All substitute parts use the TO-247-3 through-hole package, which maintains identical pin configuration and mechanical footprint. Direct PCB substitution is possible without layout modifications.

Q: What compliance certifications apply to all substitute parts?

A: All substitute parts, including the main part, carry ROHS3 compliance and REACH Unaffected status. All parts are classified under ECCN EAR99 and HTSUS 8541.10.0080. Moisture Sensitivity Level is 1 (Unlimited) for all parts.

Q: Which substitute part should be selected for a new design?

A: For new designs requiring the original 35 V / 15 A specification, VS-30CPQ035-N3 is the recommended selection due to exact electrical equivalence and active product status from the original manufacturer. For designs with different voltage or current requirements, STPS3045CW, STPS60L30CW, or DSSK80-003B may be selected based on specific circuit parameters.

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

A: Reverse leakage varies significantly among substitutes. VS-30CPQ035-N3 maintains 1.75 mA @ 35 V. STPS3045CW provides lower leakage at 200 µA @ 45 V. STPS60L30CW has 4 mA @ 30 V. DSSK80-003B has 40 mA @ 30 V. Applications sensitive to leakage current should prioritize STPS3045CW or VS-30CPQ035-N3.

Q: Can STPS60L30CW or DSSK80-003B be used in circuits designed for 35 V operation?

A: STPS60L30CW and DSSK80-003B are rated for 30 V maximum reverse voltage, which is below the original 35 V specification. These parts are not suitable for circuits requiring 35 V operation. Use VS-30CPQ035-N3 or STPS3045CW for 35 V or higher applications.

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