30CPQ080 Equivalent & Substitute Parts

Part Overview

The 30CPQ080 is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 80 V DC reverse voltage and 15 A average rectified current per diode. Manufactured by Vishay General Semiconductor - Diodes Division, this component is packaged in a TO-247-3 through-hole format. The 30CPQ080 is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and repair applications.

Substiute Parts

30CPQ080

Vishay General Semiconductor - Diodes DivisionIn Stock: 162430CPQ080 Datasheet

Current PartRFQ

STPS30H100CW

STMicroelectronicsIn Stock: 22259STPS30H100CW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 30CPQ080 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Current Rating: 15 A average rectified current per diode
• Package / Case: TO-247-3
• Mounting Type: Through Hole

Allowable Parameter Variations:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 80 V
• Voltage - Forward (Vf) (Max) @ If: Equal to or lower than 860 mV @ 15 A
• Current - Reverse Leakage @ Vr: Equal to or lower than 550 µA @ 80 V
• Operating Temperature - Junction: Range must encompass or exceed -55°C ~ 175°C

The STPS30H100CW from STMicroelectronics meets all mandatory compatibility criteria and operates within allowable parameter variations, qualifying it as a direct substitute for the obsolete 30CPQ080.

Parameter Comparison

Engineering Selection Recommendations

The STPS30H100CW is the qualified substitute for the obsolete 30CPQ080 based on the following engineering criteria:

Functional Equivalence: Both components share identical diode configuration, current rating, and package format. The STPS30H100CW provides a higher voltage rating (100 V vs. 80 V), which is acceptable for applications designed around the 80 V specification and provides additional design margin.

Performance Advantages: The STPS30H100CW exhibits superior forward voltage characteristics (800 mV vs. 860 mV @ 15 A) and significantly lower reverse leakage current (5 µA @ 100 V vs. 550 µA @ 80 V), resulting in improved efficiency and reduced power dissipation.

Compliance Status: The STPS30H100CW is ROHS3 compliant, whereas the 30CPQ080 is RoHS non-compliant. For new designs and applications subject to RoHS regulations, the STPS30H100CW is the appropriate selection.

Product Availability: The STPS30H100CW maintains active product status with substantial inventory availability, ensuring reliable supply chain continuity compared to the obsolete 30CPQ080.

Temperature Range Consideration: The STPS30H100CW operating temperature range (-40°C ~ 175°C) is narrower at the lower bound compared to the 30CPQ080 (-55°C ~ 175°C). Applications requiring operation below -40°C require design review.

Frequently Asked Questions (FAQ)

Q: Can the STPS30H100CW directly replace the 30CPQ080 in existing designs?

A: Yes. Both components feature identical TO-247-3 packaging, 1 Pair Common Cathode configuration, and 15 A current rating. Pin-to-pin compatibility is maintained. The higher voltage rating of the STPS30H100CW (100 V vs. 80 V) is a non-limiting parameter variation.

Q: What are the key differences between these two parts?

A: The STPS30H100CW provides higher reverse voltage rating (100 V), lower forward voltage drop (800 mV vs. 860 mV @ 15 A), and significantly lower reverse leakage current (5 µA vs. 550 µA @ 80 V). The STPS30H100CW is ROHS3 compliant and maintains active product status.

Q: Are there any temperature range limitations when substituting?

A: The STPS30H100CW minimum operating temperature is -40°C, compared to -55°C for the 30CPQ080. Applications requiring operation below -40°C must be evaluated for compatibility. Both components support operation to 175°C maximum junction temperature.

Q: Does the improved forward voltage performance of the STPS30H100CW affect circuit operation?

A: The lower forward voltage (800 mV vs. 860 mV @ 15 A) of the STPS30H100CW results in reduced power dissipation and improved efficiency. This represents a performance improvement with no negative impact on circuit functionality.

Q: Is the STPS30H100CW suitable for RoHS-compliant applications?

A: Yes. The STPS30H100CW is ROHS3 compliant, making it suitable for applications subject to RoHS regulations. The 30CPQ080 is RoHS non-compliant and is not appropriate for RoHS-regulated applications.

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

A: The STPS30H100CW exhibits reverse leakage current of 5 µA @ 100 V compared to 550 µA @ 80 V for the 30CPQ080. Lower reverse leakage reduces standby power consumption and heat generation, particularly in applications with sustained reverse bias conditions.