Equivalent & Substitute Parts for 52CPQ030

Part Overview

The 52CPQ030 is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division, configured as a 1 Pair Common Cathode with a maximum reverse voltage of 30 V and average rectified current of 25 A per diode. The device is housed in a TO-247-3 through-hole package and features fast recovery characteristics with a maximum forward voltage of 480 mV at 25 A.

The 52CPQ030 is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades. Substitute parts must maintain electrical compatibility within the specified parameter ranges while accommodating potential package variations and performance enhancements.

Key Parameters

Parameter	52CPQ030 Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io) (per Diode)	25 A
Voltage - Forward (Vf) (Max) @ If	480 mV @ 25 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-247-3
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the 52CPQ030 is determined by the following critical parameters:

Electrical Compatibility Requirements:

Diode Configuration: 1 Pair Common Cathode (mandatory match)
Technology: Schottky (mandatory match)
Voltage - DC Reverse (Vr) (Max): 30 V (mandatory match)
Current - Average Rectified (Io) (per Diode): Equal to or greater than 25 A
Speed: Fast Recovery ≤ 500ns, > 200mA (Io) (mandatory match)

Mechanical Compatibility Requirements:

Mounting Type: Through Hole (mandatory match)
Package / Case: TO-247-3 or equivalent through-hole packages (TO-3P-3 acceptable with mechanical verification)

Compliance Considerations:

RoHS Status: Active substitutes with ROHS3 compliance are preferred for new designs
Operating Temperature Range: Minimum -55°C to 150°C required

Substitute parts are grouped into two categories based on package type: TO-247-3 direct replacements and TO-3P-3 mechanical alternatives. All substitutes maintain the 30 V reverse voltage specification and fast recovery characteristics. Current ratings of substitute parts range from 30 A to 60 A, all exceeding the 25 A requirement of the original part.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io (per Diode)	Vf (Max) @ If	Package	Product Status	RoHS Status	Tj (Operating Range)
52CPQ030	Vishay	30 V	25 A	480 mV @ 25 A	TO-247-3	Obsolete	Non-compliant	-55°C ~ 150°C
DSSK80-003B	IXYS	30 V	40 A	480 mV @ 40 A	TO-247-3	Active	ROHS3 Compliant	-55°C ~ 150°C
MBR3030PT	Diodes Incorporated	30 V	30 A	760 mV @ 30 A	TO-3P-3	Active	ROHS3 Compliant	-65°C ~ 150°C
MBR4030PT	Diodes Incorporated	30 V	40 A	700 mV @ 20 A	TO-3P-3	Active	ROHS3 Compliant	-65°C ~ 150°C
MBR6030PT	Diodes Incorporated	30 V	60 A	750 mV @ 60 A	TO-3P-3	Active	ROHS3 Compliant	-55°C ~ 150°C
MBR7030WTG	onsemi	30 V	35 A	550 mV @ 35 A	TO-247-3	Active	ROHS3 Compliant	-55°C ~ 175°C
STPS60L30CW	STMicroelectronics	30 V	30 A	460 mV @ 30 A	TO-247-3	Active	ROHS3 Compliant	-55°C ~ 150°C

Engineering Selection Recommendations

TO-247-3 Direct Package Replacements:

The DSSK80-003B (IXYS), MBR7030WTG (onsemi), and STPS60L30CW (STMicroelectronics) are direct mechanical and electrical substitutes for the 52CPQ030, all housed in the TO-247-3 package. These parts are active products with ROHS3 compliance, making them suitable for new designs and production environments requiring RoHS certification. The DSSK80-003B and MBR7030WTG provide current ratings of 40 A and 35 A respectively, both exceeding the original 25 A specification. The STPS60L30CW offers 30 A capacity with the lowest forward voltage specification at 460 mV @ 30 A.

TO-3P-3 Package Alternatives:

The MBR3030PT, MBR4030PT, and MBR6030PT (Diodes Incorporated) are mechanical alternatives housed in the TO-3P-3 package. These parts require PCB layout and mounting modifications but maintain full electrical compatibility. All three are active products with ROHS3 compliance. The MBR3030PT matches the original 25 A current requirement with 30 A capacity. The MBR4030PT and MBR6030PT provide 40 A and 60 A ratings respectively for applications requiring higher current capacity.

Compliance and Availability:

All substitute parts listed are active products with ROHS3 compliance, addressing the RoHS non-compliance status of the obsolete 52CPQ030. Inventory availability is confirmed for all substitutes, with STPS60L30CW showing the highest stock level at 90,200 pieces.

Frequently Asked Questions (FAQ)

Q: Can the 52CPQ030 be directly replaced with any of these substitute parts?

A: Direct replacement without modification is limited to TO-247-3 package substitutes: DSSK80-003B, MBR7030WTG, and STPS60L30CW. These maintain identical package geometry and pin configuration. TO-3P-3 alternatives require PCB layout modifications.

Q: What is the minimum current rating required for a substitute part?

A: The substitute part must have an average rectified current (Io) rating equal to or greater than 25 A per diode. All listed substitutes meet or exceed this requirement.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, whereas the original 52CPQ030 is RoHS non-compliant. This compliance upgrade is beneficial for new production and regulatory adherence.

Q: What is the significance of forward voltage (Vf) differences among substitutes?

A: Forward voltage variations among substitutes range from 460 mV to 760 mV depending on the part and measurement conditions. These differences affect power dissipation and thermal performance. Lower Vf values (STPS60L30CW at 460 mV) result in reduced heat generation. Selection should account for thermal design requirements of the application.

Q: Can TO-3P-3 package parts be used in place of TO-247-3 parts?

A: TO-3P-3 and TO-247-3 packages have different physical dimensions and pin configurations. Substitution requires PCB redesign and mechanical verification. Direct socket replacement is not possible.

Q: What is the operating temperature range consideration for substitution?

A: The original 52CPQ030 operates from -55°C to 150°C. All TO-247-3 substitutes maintain this range. MBR3030PT and MBR4030PT extend the lower limit to -65°C. MBR7030WTG extends the upper limit to 175°C. Selection depends on application temperature requirements.

Q: How does current rating affect part selection?

A: All substitute parts exceed the original 25 A requirement. Selection of higher-rated parts (40 A, 60 A) provides design margin and thermal headroom. Lower-rated substitutes (30 A) provide minimal margin above the original specification.

Q: Are there inventory considerations for substitute selection?

A: STPS60L30CW has the highest inventory availability at 90,200 pieces, followed by MBR4030PT at 2,000 pieces. DSSK80-003B and MBR7030WTG have moderate availability at 810 and 1,168 pieces respectively. Inventory levels should be verified for production volume requirements.

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