Equivalent & Substitute Parts for 30CPQ030

Part Overview

The 30CPQ030 is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 30 V DC reverse voltage and 15 A average rectified current per diode. The device is housed in a TO-247-3 through-hole package and is currently in active production status with 1158 units in stock.

Substitute parts are identified to address specific application requirements, including enhanced voltage ratings, improved compliance certifications, or alternative supplier availability while maintaining core electrical and mechanical compatibility.

Substiute Parts

30CPQ030

Vishay General Semiconductor - Diodes DivisionIn Stock: 119530CPQ030 Datasheet

Current PartRFQ

STPS3045CW

STMicroelectronicsIn Stock: 1452STPS3045CW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 30CPQ030 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Current - Average Rectified (Io): 15 A per diode
• Mounting Type: Through Hole
• Package / Case: TO-247-3

Allowable Variation Parameters:

• Voltage - DC Reverse (Vr): Equal to or greater than 30 V
• Voltage - Forward (Vf): Within acceptable circuit operating margins
• Current - Reverse Leakage: Lower values indicate improved performance
• Operating Temperature Range: Extended ranges provide design flexibility
• Compliance Certifications: RoHS and REACH status for regulatory requirements

The STPS3045CW qualifies as a substitute because it maintains identical diode configuration, technology, current rating, mounting type, and package specification while providing an elevated voltage rating of 45 V and improved RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

30CPQ030 Selection Criteria: The 30CPQ030 is appropriate for applications with maximum reverse voltage requirements of 30 V and where RoHS non-compliant components are acceptable. This part maintains active production status with substantial inventory availability.

STPS3045CW Selection Criteria: The STPS3045CW is selected when applications require enhanced reverse voltage capability (45 V rating) or when RoHS3 compliance is mandated by design specifications or regulatory requirements. The STPS3045CW provides superior reverse leakage characteristics (200 µA @ 45 V versus 1.75 mA @ 30 V) and an extended maximum junction temperature rating of 200°C. Both parts maintain identical current handling capacity, switching speed, and package form factor.

The forward voltage differential of 30 mV (570 mV versus 540 mV at 15 A) is within typical circuit design tolerances for Schottky diode applications.

Frequently Asked Questions (FAQ)

Q: Can the STPS3045CW directly replace the 30CPQ030 in existing designs?

A: Yes, the STPS3045CW is a direct mechanical and electrical substitute. Both components share identical diode configuration (1 Pair Common Cathode), current rating (15 A per diode), switching speed characteristics, and TO-247-3 package specification. The elevated voltage rating of the STPS3045CW (45 V versus 30 V) provides additional design margin without affecting circuit operation in applications rated for 30 V or lower.

Q: What is the significance of the reverse leakage current difference?

A: The STPS3045CW exhibits significantly lower reverse leakage current (200 µA @ 45 V) compared to the 30CPQ030 (1.75 mA @ 30 V). Lower reverse leakage reduces power dissipation and heat generation in the reverse-biased state, improving overall circuit efficiency and thermal performance.

Q: Are there packaging differences between these parts?

A: Both the 30CPQ030 and STPS3045CW utilize the TO-247-3 through-hole package. The 30CPQ030 is supplied without specified packaging detail, while the STPS3045CW is supplied in tube packaging. Both are compatible with standard through-hole PCB assembly processes.

Q: What compliance considerations apply to part selection?

A: The 30CPQ030 is RoHS non-compliant, while the STPS3045CW is ROHS3 compliant. Applications subject to RoHS directives or customer specifications requiring RoHS compliance must utilize the STPS3045CW. Both parts maintain REACH Unaffected status and identical Moisture Sensitivity Level (MSL) ratings.

Q: How do the operating temperature ranges compare?

A: The 30CPQ030 operates across a junction temperature range of -55°C to 150°C. The STPS3045CW specifies a maximum junction temperature of 200°C, providing extended thermal operating capability. This extended range supports applications requiring operation in elevated temperature environments.

Q: Is the forward voltage difference of 30 mV significant for circuit design?

A: The forward voltage differential (540 mV for 30CPQ030 versus 570 mV for STPS3045CW at 15 A) represents a 5.6% increase. For most rectification and switching applications, this difference falls within acceptable design tolerances. Circuit designs with tight voltage regulation requirements should account for this differential during thermal and electrical analysis.