MURD320T4 Equivalent & Substitute Parts

Part Overview

The MURD320T4 is an ultrafast recovery rectifier diode manufactured by onsemi, rated for 200 V DC reverse voltage and 3 A average rectified current in a surface mount DPAK package. This component is classified as obsolete and is no longer in active production. The MURD320T4 is part of the SWITCHMODE™ series and utilizes standard rectifier technology with fast recovery characteristics suitable for switching power supply applications.

Due to its obsolete status, locating equivalent substitute parts with identical electrical and mechanical specifications is necessary for design continuity and procurement planning. Active production alternatives within the same electrical rating and package configuration are available to ensure long-term component availability.

Substiute Parts

MURD320T4

onsemiIn Stock: 2651MURD320T4 Datasheet

Current PartRFQ

MURD320T4G

onsemiIn Stock: 36035MURD320T4G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MURD320T4 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 950 mV @ 3 A
• Reverse Recovery Time (trr): 35 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 200 V
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Supplier Device Package: DPAK

The substitute part MURD320T4G meets all electrical and mechanical parameters specified for the MURD320T4. Both components share identical voltage ratings, current ratings, forward voltage characteristics, and recovery time specifications. Both are housed in the same DPAK surface mount package, ensuring direct mechanical and electrical interchangeability in circuit board layouts and solder reflow processes.

Parameter Comparison

Engineering Selection Recommendations

The MURD320T4G is the direct active production equivalent of the obsolete MURD320T4. Both components are manufactured by onsemi and provide identical electrical performance across all specified parameters: 200 V reverse voltage rating, 3 A average rectified current, 950 mV forward voltage drop at 3 A, and 35 ns reverse recovery time.

Product Status Consideration: The MURD320T4 is classified as obsolete and no longer manufactured. The MURD320T4G maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance Consideration: The MURD320T4G carries ROHS3 compliance certification, whereas the MURD320T4 is RoHS non-compliant. Both components maintain REACH Unaffected status and identical Moisture Sensitivity Level (MSL) ratings of 1 (Unlimited).

Packaging Consideration: The MURD320T4G is supplied in Tape & Reel (TR) packaging format, which is standard for high-volume surface mount assembly operations. The MURD320T4 original packaging specification is not explicitly detailed in the provided data.

For new designs, procurement of existing inventory, or design refresh activities, the MURD320T4G is the appropriate selection due to its active production status, improved regulatory compliance, and identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can MURD320T4G be used as a direct replacement for MURD320T4 in existing circuit designs?

A: Yes. The MURD320T4G provides complete electrical and mechanical equivalence to the MURD320T4. Both components share identical voltage ratings (200 V), current ratings (3 A), forward voltage characteristics (950 mV @ 3 A), and reverse recovery time (35 ns). The DPAK surface mount package is identical, enabling direct substitution without circuit board layout modifications or design changes.

Q: What is the primary reason for substituting MURD320T4 with MURD320T4G?

A: The MURD320T4 is classified as obsolete and is no longer in active production. The MURD320T4G is the active production equivalent manufactured by onsemi with identical electrical specifications, ensuring component availability and supply chain continuity for both new designs and existing product support.

Q: Are there any compliance differences between MURD320T4 and MURD320T4G?

A: The MURD320T4G carries ROHS3 compliance certification, while the MURD320T4 is RoHS non-compliant. Both components maintain REACH Unaffected status. For applications subject to RoHS regulatory requirements, the MURD320T4G is the compliant selection.

Q: What packaging formats are available for these diodes?

A: The MURD320T4G is supplied in Tape & Reel (TR) packaging, which is standard for automated surface mount assembly processes. Both components utilize the DPAK surface mount package format (TO-252-3, DPAK with 2 Leads + Tab, SC-63).

Q: Are the electrical performance characteristics identical between MURD320T4 and MURD320T4G?

A: Yes. Both components provide identical electrical performance: 200 V maximum DC reverse voltage, 3 A average rectified current, 950 mV maximum forward voltage at 3 A, 35 ns reverse recovery time, and 5 µA reverse leakage current at 200 V. Both are classified as fast recovery diodes with recovery speed ≤ 500ns for currents > 200mA.

Q: What is the Moisture Sensitivity Level (MSL) for these components?

A: Both the MURD320T4 and MURD320T4G carry an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage, handling, or reflow processes.

Q: Can MURD320T4G be used in high-volume production environments?

A: Yes. The MURD320T4G is supplied in Tape & Reel (TR) packaging format, which is optimized for automated pick-and-place and reflow assembly operations in high-volume manufacturing environments. The active production status ensures consistent supply availability.