UG2004PT Equivalent & Substitute Parts

Part Overview

The UG2004PT is a diode array rectifier manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode design with 200V reverse voltage rating and 20A average rectified current per diode. This component is packaged in TO-247-3 through-hole format and maintains Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, design flexibility, or supply chain considerations.

Substiute Parts

UG2004PT

Taiwan Semiconductor CorporationIn Stock: 1152UG2004PT Datasheet

Current PartRFQ

MUR3020WTG

onsemiIn Stock: 30628MUR3020WTG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the UG2004PT is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 200V minimum
• Diode Configuration: 1 Pair Common Cathode
• Package / Case: TO-247-3
• Mounting Type: Through Hole
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Criteria:

• Current - Average Rectified (Io) (per Diode): Equal to or greater than 20A
• Voltage - Forward (Vf) (Max): Within acceptable operating range
• Reverse Recovery Time (trr): Within fast recovery specification
• Current - Reverse Leakage @ Vr: Within acceptable limits
• Operating Temperature - Junction: Equal to or exceeding -55°C to 175°C range

The MUR3020WTG from onsemi is identified as a substitute part. While the current rating is reduced to 15A (below the 20A specification of the UG2004PT), all other electrical and mechanical parameters remain compatible within the TO-247-3 package format and fast recovery diode classification.

Parameter Comparison

Engineering Selection Recommendations

UG2004PT Selection: The UG2004PT is the primary component choice. It maintains Active product status with current manufacturing availability and full RoHS3 compliance. The 20A current rating and 25ns reverse recovery time provide optimal performance specifications for applications requiring maximum current capacity within the 200V, TO-247-3 package class.

MUR3020WTG Selection: The MUR3020WTG is a valid substitute only when application current requirements do not exceed 15A per diode. This substitute is classified as Obsolete, indicating discontinued manufacturing. Selection of this part is appropriate only when existing inventory is available and current derating is acceptable for the target application. The substitute exhibits superior reverse leakage characteristics (10µA versus 200µA) and extended lower temperature operating range (-65°C versus -55°C), which may provide advantages in specific thermal or leakage-sensitive applications. Both parts maintain RoHS3 compliance and identical package/configuration specifications.

Frequently Asked Questions (FAQ)

Q: Can the MUR3020WTG directly replace the UG2004PT in all applications?

A: Direct replacement is limited by current rating. The MUR3020WTG is rated for 15A average rectified current per diode, while the UG2004PT is rated for 20A. Substitution is valid only when application current requirements do not exceed 15A per diode. Exceeding this limit will cause the substitute to operate outside its rated specifications.

Q: Are the TO-247-3 packages physically identical between these parts?

A: Yes. Both the UG2004PT and MUR3020WTG use the TO-247-3 package format with identical through-hole mounting configuration. Physical board layout and thermal management mounting requirements are equivalent.

Q: What is the impact of the higher forward voltage drop in the MUR3020WTG?

A: The MUR3020WTG exhibits 1.05V forward voltage drop at 15A compared to 930mV at 10A for the UG2004PT. This difference results in increased power dissipation and heat generation. Thermal design calculations must account for this higher forward voltage characteristic when using the substitute.

Q: Why is the MUR3020WTG listed as Obsolete?

A: Obsolete status indicates the manufacturer (onsemi) has discontinued production of this part. While existing inventory may be available through distributors, long-term supply cannot be guaranteed. The UG2004PT is recommended for new designs requiring sustained component availability.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the UG2004PT and MUR3020WTG maintain full RoHS3 compliance and are REACH Unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What is the significance of the 10ns difference in reverse recovery time?

A: The MUR3020WTG has a 35ns reverse recovery time compared to 25ns for the UG2004PT. Both remain within the Fast Recovery classification (≤500ns). The longer recovery time in the substitute may introduce slightly increased switching losses in high-frequency applications but remains acceptable for standard rectifier circuit operation.