MBRF40250T Equivalent & Substitute Parts

Part Overview

The MBRF40250T is a Schottky rectifier diode manufactured by onsemi, rated for 250 V DC reverse voltage and 40 A average rectified current in a Through Hole TO-220FP package. This component is classified as Obsolete, indicating discontinuation from active production. Locating equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

MBRF40250T

onsemiIn Stock: 993MBRF40250T Datasheet

Current PartRFQ

MBRF40250TG

onsemiIn Stock: 3782MBRF40250TG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRF40250T is determined by electrical and mechanical parameter equivalence. The substitute part must satisfy the following criteria:

Electrical Parameters (Critical):

• Voltage - DC Reverse (Vr) (Max): 250 V
• Current - Average Rectified (Io): 40 A
• Voltage - Forward (Vf) (Max) @ If: 970 mV @ 40 A
• Reverse Recovery Time (trr): 35 ns
• Current - Reverse Leakage @ Vr: 30 µA @ 250 V
• Capacitance @ Vr, F: 500 pF @ 5 V, 1 MHz

Mechanical Parameters (Critical):

• Mounting Type: Through Hole
• Package / Case: TO-220-3 Full Pack
• Supplier Device Package: TO-220FP

Environmental Parameters:

• Operating Temperature - Junction: -65°C ~ 150°C
• Technology: Schottky

The MBRF40250TG meets all specified electrical and mechanical parameters and is therefore a direct substitute for the MBRF40250T.

Parameter Comparison

Engineering Selection Recommendations

The MBRF40250TG is the direct substitute for the obsolete MBRF40250T. Both components are manufactured by onsemi and share identical electrical and mechanical specifications across all critical parameters.

Product Status Consideration: The MBRF40250T is classified as Obsolete, while the MBRF40250TG is Active. Selection of the MBRF40250TG ensures access to current production inventory and ongoing manufacturer support.

Compliance Consideration: The MBRF40250TG is ROHS3 Compliant, whereas the MBRF40250T is RoHS non-compliant. For applications subject to RoHS regulations, the MBRF40250TG is the appropriate selection. Both parts maintain REACH Unaffected status and share identical ECCN and HTSUS classifications.

Packaging Consideration: The MBRF40250T is supplied in standard packaging, while the MBRF40250TG is supplied in Tube packaging. Both maintain the same TO-220FP device package and TO-220-3 Full Pack case format, ensuring mechanical and thermal compatibility in circuit board layouts.

Frequently Asked Questions (FAQ)

Q: Can the MBRF40250TG directly replace the MBRF40250T in existing designs?

A: Yes. The MBRF40250TG is electrically and mechanically equivalent to the MBRF40250T. All critical parameters including voltage rating, current rating, forward voltage drop, reverse recovery time, leakage current, and capacitance are identical. The TO-220FP package and TO-220-3 Full Pack case format are unchanged, ensuring pin-for-pin compatibility and identical thermal characteristics.

Q: What is the primary reason to transition from MBRF40250T to MBRF40250TG?

A: The MBRF40250T is Obsolete and no longer in active production. The MBRF40250TG is the Active equivalent part from the same manufacturer, ensuring continued component availability and manufacturer support for new production runs and field replacements.

Q: Are there compliance differences between these two parts?

A: Yes. The MBRF40250TG is ROHS3 Compliant, while the MBRF40250T is RoHS non-compliant. For applications subject to RoHS directives, the MBRF40250TG is the required selection. Both parts maintain identical REACH Unaffected status.

Q: Does the packaging format affect electrical performance?

A: No. The MBRF40250T and MBRF40250TG differ only in supplier packaging format (standard versus Tube). The device package (TO-220FP) and case format (TO-220-3 Full Pack) are identical, resulting in no electrical or thermal performance differences.

Q: Are the thermal characteristics identical between these parts?

A: Yes. Both parts operate across the same junction temperature range of -65°C to 150°C and share identical thermal properties due to identical package geometry and material composition.

Q: What is the base product number relationship?

A: The MBRF40250T references base product number MBRF4025, while the MBRF40250TG references base product number MBRF40250. Both derive from the same product family and share identical electrical specifications.