QRF0630R30 Equivalent & Substitute Parts

Part Overview

The QRF0630R30 is a diode module manufactured by Powerex Inc., classified as a general-purpose rectifier diode array with a 1 Pair Common Anode configuration. This chassis mount module is rated for 600V DC reverse voltage and 210A average rectified current per diode, featuring fast recovery characteristics with a reverse recovery time of 120 ns. The product is currently obsolete, necessitating identification of equivalent substitute components for ongoing system support and new design implementations.

Substiute Parts

QRF0630R30

Powerex Inc.In Stock: 674QRF0630R30 Datasheet

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MURT20060R

GeneSiC SemiconductorIn Stock: 858MURT20060R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the QRF0630R30 are identified based on the following critical electrical and mechanical parameters:

Mandatory Matching Criteria:

• Diode Configuration: 1 Pair Common Anode
• Voltage - DC Reverse (Vr) (Max): 600 V
• Mounting Type: Chassis Mount
• Technology: Standard
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Parameters:

• Current - Average Rectified (Io): Substitutes must meet or exceed the application requirement; lower current ratings are acceptable only if system design permits
• Voltage - Forward (Vf): Variations within thermal and efficiency design margins
• Reverse Recovery Time (trr): Variations within fast recovery classification
• Operating Temperature Range: Substitutes must cover the required operating window
• Package / Case: Physical form factor may differ provided mounting compatibility is maintained

The MURT20060R from GeneSiC Semiconductor meets the core electrical configuration requirements with matching voltage rating and common anode topology. However, the current rating is reduced from 210A to 100A, requiring application-level verification of system current demands.

Parameter Comparison

Engineering Selection Recommendations

The MURT20060R is an active product from GeneSiC Semiconductor and represents a viable substitute for the obsolete QRF0630R30 based on matching electrical configuration and voltage rating. Both components are RoHS compliant and feature fast recovery diode technology with chassis mount configurations.

The primary design consideration is the current rating differential: the MURT20060R is rated for 100A average rectified current compared to the QRF0630R30's 210A rating. Selection of this substitute is appropriate for applications where the system current demand does not exceed 100A per diode. The MURT20060R provides an extended lower operating temperature limit (-55°C versus -40°C), which may offer additional thermal margin in certain applications.

Both components maintain the 600V DC reverse voltage specification and fast recovery speed classification, ensuring compatibility with existing circuit topologies designed for the original part.

Frequently Asked Questions (FAQ)

Q: Can the MURT20060R directly replace the QRF0630R30 in all applications?

A: The MURT20060R matches the core electrical configuration (1 Pair Common Anode, 600V rating, fast recovery) and mounting type. However, the reduced current rating (100A versus 210A) requires verification that system current demands do not exceed the substitute's specification. Physical package differences (Three Tower versus Module) must also be evaluated for mechanical fit.

Q: What is the significance of the current rating difference between these parts?

A: The QRF0630R30 is rated for 210A average rectified current per diode, while the MURT20060R is rated for 100A. If the application circuit draws current exceeding 100A, the substitute will not meet performance requirements. Applications operating below 100A current levels are compatible with the MURT20060R.

Q: Are there differences in forward voltage drop between these diodes?

A: The QRF0630R30 exhibits a maximum forward voltage of 2.5V at 210A, while the MURT20060R exhibits 1.7V at 100A. Forward voltage characteristics are current-dependent; direct comparison at different current levels requires reference to detailed device datasheets. The MURT20060R may exhibit lower power dissipation in applications operating at or below 100A.

Q: How do the reverse recovery times compare?

A: The QRF0630R30 specifies 120 ns reverse recovery time, while the MURT20060R specifies 160 ns. Both components meet the fast recovery classification (≤ 500ns). The difference of 40 ns may be relevant in high-frequency switching applications; system-level performance validation is necessary if switching frequency is a critical design parameter.

Q: What are the package and mounting considerations?

A: The QRF0630R30 uses a Module package, while the MURT20060R uses a Three Tower package. Both are chassis mount configurations. Physical dimensions and mounting hole patterns differ; mechanical compatibility with existing PCB or chassis designs must be confirmed before substitution.

Q: Does the extended temperature range of the MURT20060R provide additional benefits?

A: The MURT20060R operates from -55°C to 150°C, compared to the QRF0630R30's -40°C to 150°C range. The extended lower temperature limit provides 15°C additional margin at minimum operating temperature. This is beneficial for applications requiring operation in cold environments or with stringent thermal specifications.

Q: Are both parts RoHS compliant?

A: Yes, both the QRF0630R30 and MURT20060R are RoHS compliant, meeting environmental and regulatory requirements for lead-free manufacturing and restricted substance limitations.