MBRB1520CT-TP Equivalent & Substitute Parts

Part Overview

The MBRB1520CT-TP is a Schottky diode array manufactured by Micro Commercial Co, configured as 1 pair common cathode with a maximum reverse voltage of 20 V and average rectified current of 15 A per diode. The device is packaged in a surface mount TO-263-3 D2PAK format with 2 leads plus tab. This part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement.

Substiute Parts

MBRB1520CT-TP

Micro Commercial CoIn Stock: 815MBRB1520CT-TP Datasheet

Current PartRFQ

MBRB1645CT-TP

Micro Commercial CoIn Stock: 749MBRB1645CT-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBRB1520CT-TP is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Diode configuration must remain 1 pair common cathode
• Technology must be Schottky
• Reverse voltage rating must equal or exceed 20 V
• Average rectified current per diode must equal or exceed 15 A
• Fast recovery speed characteristic (≤ 500ns, > 200mA) must be maintained
• Reverse leakage current must not exceed specified limits

Mechanical Compatibility Requirements:

• Mounting type must be surface mount
• Package must be TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

The MBRB1645CT-TP meets all substitution criteria as an active product with enhanced electrical ratings while maintaining identical mechanical packaging and configuration.

Parameter Comparison

Engineering Selection Recommendations

The MBRB1645CT-TP is the designated substitute for the obsolete MBRB1520CT-TP. Selection of this substitute is based on the following factors:

Product Status: The MBRB1645CT-TP maintains active product status, ensuring continued availability and supply chain support compared to the obsolete MBRB1520CT-TP.

Electrical Ratings: The substitute provides enhanced reverse voltage capability (45 V versus 20 V) and equivalent or superior current handling (16 A versus 15 A per diode). These higher ratings ensure the substitute operates within safe margins in the original application circuit.

Mechanical Compatibility: Both parts share identical packaging (TO-263-3, D2PAK) and mounting type (surface mount), eliminating the need for PCB redesign or layout modifications.

Regulatory Compliance: Both parts maintain REACH Unaffected status and identical ECCN and HTSUS classifications, ensuring consistent regulatory treatment.

Functional Equivalence: Configuration, technology, speed characteristics, and reverse leakage behavior remain consistent between the main part and substitute, supporting direct functional replacement.

Frequently Asked Questions (FAQ)

Q: Can the MBRB1645CT-TP directly replace the MBRB1520CT-TP without circuit modifications?

A: Yes. The MBRB1645CT-TP maintains identical diode configuration (1 pair common cathode), technology (Schottky), speed characteristics (fast recovery ≤ 500ns), and package format (TO-263-3, D2PAK). The enhanced voltage and current ratings of the substitute operate within the original circuit requirements.

Q: What are the key differences between these two parts?

A: The MBRB1645CT-TP provides higher reverse voltage rating (45 V versus 20 V) and slightly higher average rectified current (16 A versus 15 A per diode). The substitute also maintains active product status, whereas the MBRB1520CT-TP is obsolete. Operating temperature range differs slightly (-55°C to 125°C for the substitute versus -55°C to 150°C for the main part).

Q: Are there any package or pinout differences?

A: No. Both parts use identical TO-263-3, D2PAK (2 Leads + Tab), TO-263AB packaging with surface mount configuration. No PCB layout changes are required.

Q: Why is the MBRB1520CT-TP classified as obsolete?

A: The MBRB1520CT-TP has reached end-of-life status. The MBRB1645CT-TP is the active equivalent offering superior electrical performance and continued manufacturer support.

Q: What is the significance of the higher voltage rating on the substitute?

A: The 45 V rating on the MBRB1645CT-TP provides additional design margin and protection against voltage transients compared to the 20 V rating of the original part. This does not negatively impact performance in applications designed for 20 V operation.

Q: Are the reverse leakage characteristics comparable?

A: Both parts specify 100 µA reverse leakage current at their respective rated voltages (20 V for the main part, 45 V for the substitute). The leakage behavior remains consistent with Schottky diode technology specifications.