MBRF2045 C0G Schottky Diode Equivalent & Substitute Parts

Part Overview

The MBRF2045 C0G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, designed for high-current applications requiring fast recovery characteristics. This component is rated for 45 V DC reverse voltage with a 20 A average rectified current capacity and features a forward voltage drop of 750 mV at 20 A. The part is packaged in a TO-220-2 through-hole configuration (ITO-220AC supplier package).

The MBRF2045 C0G variant is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives for ongoing design support and procurement. The active MBRF2045 variant remains available and serves as the direct substitute for this application.

Substiute Parts

MBRF2045 C0G

Taiwan Semiconductor CorporationIn Stock: 916MBRF2045 C0G Datasheet

Current PartRFQ

MBRF2045

Taiwan Semiconductor CorporationIn Stock: 1254MBRF2045 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRF2045 C0G is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) Maximum: 45 V
• Current - Average Rectified (Io): 20 A
• Voltage - Forward (Vf) Maximum @ If: 750 mV @ 20 A
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 200 µA @ 45 V

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: TO-220-2 Full Pack
• Supplier Device Package: ITO-220AC

Compliance Criteria:

• Technology: Schottky
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Operating Temperature - Junction: -55°C to 150°C

The MBRF2045 (active variant) meets all substitution criteria and is classified as a direct equivalent to the MBRF2045 C0G.

Parameter Comparison

Engineering Selection Recommendations

The MBRF2045 (active variant) is the direct substitute for the MBRF2045 C0G. Both parts are manufactured by Taiwan Semiconductor Corporation and exhibit identical electrical and mechanical specifications across all critical parameters.

Selection Basis:

The active MBRF2045 is recommended for new procurement and design continuity because:

1. Product Status: The active MBRF2045 maintains current manufacturing and distribution status, ensuring long-term availability and supply chain stability.

2. Electrical Equivalence: All electrical parameters—reverse voltage rating, rectified current capacity, forward voltage drop, recovery speed, and reverse leakage current—are identical between the discontinued C0G variant and the active substitute.

3. Mechanical Compatibility: Both parts utilize identical TO-220-2 through-hole packaging and ITO-220AC supplier device packages, ensuring direct board-level compatibility without layout modifications.

4. Compliance Alignment: Both variants maintain ROHS3 compliance, unlimited moisture sensitivity level (MSL 1), and identical operating temperature ranges (-55°C to 150°C junction temperature).

5. Inventory Availability: The active MBRF2045 maintains higher inventory levels (1193 pieces) compared to the discontinued variant, supporting immediate procurement requirements.

No design modifications, thermal analysis adjustments, or circuit re-qualification are required when transitioning from the MBRF2045 C0G to the active MBRF2045 variant.

Frequently Asked Questions (FAQ)

Q: Can the active MBRF2045 be used as a direct replacement for the discontinued MBRF2045 C0G?

A: Yes. The active MBRF2045 is a direct equivalent. All electrical parameters (45 V reverse voltage, 20 A rectified current, 750 mV forward voltage drop, fast recovery speed, and 200 µA reverse leakage) are identical. Mechanical packaging (TO-220-2, ITO-220AC) and compliance certifications (ROHS3, MSL 1) are also identical. No circuit modifications are required.

Q: Are there any differences in thermal performance between the MBRF2045 C0G and the active MBRF2045?

A: No thermal performance parameters are provided in the component specifications. Both variants operate across the same junction temperature range (-55°C to 150°C). Thermal design considerations remain unchanged between the two parts.

Q: What is the significance of the "C0G" designation in the MBRF2045 C0G part number?

A: The C0G designation is a variant identifier used by the manufacturer. The active MBRF2045 (without the C0G suffix) is the current production equivalent. Both designations refer to the same electrical and mechanical specifications.

Q: Can the MBRF2045 be used in applications requiring higher current ratings?

A: No. The MBRF2045 is rated for a maximum average rectified current of 20 A. Applications requiring higher current capacity require selection of alternative diode models with higher current ratings.

Q: Is the TO-220-2 package suitable for all PCB designs?

A: The TO-220-2 through-hole package is a standard configuration compatible with conventional PCB designs incorporating through-hole mounting. PCB layout must accommodate the physical dimensions and lead spacing of the TO-220-2 package. Surface-mount alternatives are not available for this part number.

Q: What is the reverse leakage current specification, and how does it affect circuit design?

A: The reverse leakage current is specified as 200 µA at the maximum reverse voltage rating of 45 V. This parameter defines the maximum DC current flowing through the diode when reverse-biased. Circuit designs must account for this leakage current in high-impedance applications or precision analog circuits.

Q: Are both the MBRF2045 C0G and active MBRF2045 RoHS compliant?

A: Yes. Both variants are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for electronic component manufacturing and distribution.