MBRF2045 Equivalent & Substitute Parts

Part Overview

The MBRF2045 is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for high-current applications requiring fast recovery characteristics. This through-hole component operates at a maximum reverse voltage of 45 V with an average rectified current rating of 20 A, making it suitable for power supply and switching applications. The part is currently in active production status with 1193 units available in new original inventory. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the TO-220-2 package format.

Substiute Parts

MBRF2045

Taiwan Semiconductor CorporationIn Stock: 1254MBRF2045 Datasheet

Current PartRFQ

MBRF2045

Taiwan Semiconductor CorporationIn Stock: 1254MBRF2045 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRF2045 Schottky rectifier diode is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 45 V
• Current - Average Rectified (Io): 20 A
• Voltage - Forward (Vf) (Max) @ If: 750 mV @ 20 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 200 µA @ 45 V
• Operating Temperature - Junction: -55°C to 150°C

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: TO-220-2 Full Pack
• Technology: Schottky

Parts meeting all specified parameters within these ranges are classified as direct equivalents. No parameter relaxation or uprating is applied in this substitution analysis.

Parameter Comparison

Engineering Selection Recommendations

The MBRF2045 is the direct equivalent part for applications requiring a 45 V, 20 A Schottky rectifier diode in TO-220-2 through-hole packaging. The part maintains active production status with established supply availability. All specifications, including electrical performance, thermal operating range, and regulatory compliance, are identical across the identified equivalent.

Selection of the MBRF2045 is appropriate for applications where the following conditions are met:

• Circuit design requires a maximum reverse voltage of 45 V
• Average rectified current does not exceed 20 A
• Forward voltage drop of 750 mV at 20 A is acceptable for the application
• Fast recovery characteristics (≤ 500ns) are required
• Through-hole mounting in TO-220-2 package format is specified
• Operating junction temperature range of -55°C to 150°C is compatible with application requirements
• ROHS3 compliance and REACH unaffected status are required

The part is suitable for direct substitution in existing designs currently utilizing the MBRF2045 designation.

Frequently Asked Questions (FAQ)

Q: What defines an equivalent part for the MBRF2045 Schottky rectifier diode?

A: An equivalent part must match all critical electrical parameters: 45 V maximum reverse voltage, 20 A average rectified current, 750 mV forward voltage at 20 A, fast recovery speed ≤ 500ns, 200 µA reverse leakage current at 45 V, and operating temperature range of -55°C to 150°C. The part must also be packaged in TO-220-2 through-hole format with Schottky technology.

Q: Can the MBRF2045 be substituted with a part having higher voltage or current ratings?

A: Parts with higher voltage or current ratings are not direct equivalents. Substitution requires exact parameter matching. Parts with different electrical specifications may introduce circuit performance changes and are not classified as equivalent substitutes.

Q: Is the TO-220-2 package format critical for substitution?

A: Yes. The TO-220-2 package format is a mechanical requirement for through-hole mounting compatibility. Parts in alternative packages, such as surface-mount variants, are not equivalent substitutes despite identical electrical specifications.

Q: What is the significance of the fast recovery characteristic in the MBRF2045?

A: The fast recovery specification (≤ 500ns, > 200mA) indicates the diode's switching speed capability. This parameter is essential for applications requiring rapid reverse recovery, such as switching power supplies. Equivalent parts must maintain this specification.

Q: Are there any compliance considerations when selecting an equivalent MBRF2045?

A: Yes. The MBRF2045 is ROHS3 compliant and REACH unaffected. Equivalent parts must maintain these compliance certifications to ensure regulatory compatibility in target applications and markets.

Q: What is the moisture sensitivity level (MSL) of the MBRF2045?

A: The MBRF2045 has an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. This classification applies to equivalent parts as well.