MBR1620CT-BP Equivalent & Substitute Parts

Part Overview

The MBR1620CT-BP is a Schottky diode array in a 1 Pair Common Cathode configuration, rated for 20 V DC reverse voltage and 16 A average rectified current per diode. Manufactured by Micro Commercial Co, this component is packaged in a Through Hole TO-220-3 form factor and is classified as Obsolete. Due to its obsolete product status, identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

MBR1620CT-BP

Micro Commercial CoIn Stock: 943MBR1620CT-BP Datasheet

Current PartRFQ

MBR1645CT-BP

Micro Commercial CoIn Stock: 1043MBR1645CT-BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MBR1620CT-BP is determined by the following critical parameters that must remain constant or be exceeded:

Fixed Parameters (Must Match Exactly):

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Mounting Type: Through Hole
• Package / Case: TO-220-3
• Operating Temperature Range: -55°C ~ 150°C

Scalable Parameters (Can Be Equal or Exceeded):

• Current - Average Rectified (Io): 16 A minimum
• Voltage - Forward (Vf): 700 mV @ 8 A maximum
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
• Current - Reverse Leakage: 100 µA maximum at rated voltage

Voltage Rating (Can Be Equal or Exceeded):

• Voltage - DC Reverse (Vr): 20 V minimum

The MBR1645CT-BP qualifies as a substitute because it maintains all fixed parameters while providing an elevated voltage rating of 45 V, which exceeds the 20 V requirement of the original part. This higher voltage rating ensures compatibility in applications where the original 20 V specification is required, while providing additional design margin for transient voltage conditions.

Parameter Comparison

Engineering Selection Recommendations

The MBR1645CT-BP is the qualified substitute for the obsolete MBR1620CT-BP. Selection of this substitute is supported by the following engineering considerations:

Product Status: The MBR1620CT-BP is classified as Obsolete, creating supply chain risk for ongoing production and field service applications. The MBR1645CT-BP maintains Active product status, ensuring long-term availability and supply chain continuity.

Compliance and Certifications: Both parts maintain identical REACH Status (REACH Unaffected), ECCN (EAR99), and HTSUS (8541.10.0080) classifications, ensuring regulatory compliance equivalence.

Electrical Compatibility: The MBR1645CT-BP provides a 45 V reverse voltage rating compared to the 20 V rating of the original part. This elevated rating is compatible with all applications designed for the 20 V specification, as the substitute operates within the original voltage envelope while providing additional design margin.

Functional Equivalence: Current rating, forward voltage characteristics, switching speed, reverse leakage characteristics, and operating temperature range are identical between the main part and substitute, ensuring functional interchangeability in circuit applications.

Mechanical Compatibility: Both parts utilize identical Through Hole mounting in TO-220-3 packaging, enabling direct physical substitution without PCB redesign or mechanical rework.

Frequently Asked Questions (FAQ)

Q: Can the MBR1645CT-BP be used as a direct replacement for the MBR1620CT-BP?

A: Yes. The MBR1645CT-BP is electrically and mechanically compatible with the MBR1620CT-BP. Both parts share identical diode configuration, current rating, forward voltage characteristics, switching speed, operating temperature range, and TO-220-3 package form factor. The elevated 45 V reverse voltage rating of the substitute exceeds the 20 V requirement of the original part.

Q: What is the primary difference between these two parts?

A: The primary difference is the maximum DC reverse voltage rating. The MBR1620CT-BP is rated for 20 V, while the MBR1645CT-BP is rated for 45 V. All other electrical and mechanical parameters are identical.

Q: Does the higher voltage rating of the MBR1645CT-BP affect circuit performance?

A: No. The higher voltage rating does not degrade circuit performance. The substitute maintains identical forward voltage drop, switching speed, and leakage characteristics. The elevated voltage rating provides additional transient voltage margin without affecting normal circuit operation.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts are packaged in TO-220-3 Through Hole configuration and mount identically on PCBs designed for the original MBR1620CT-BP.

Q: Why is the MBR1620CT-BP classified as Obsolete?

A: The MBR1620CT-BP is listed as Obsolete by the manufacturer. The MBR1645CT-BP is the Active equivalent that provides continued product support and supply chain availability.

Q: Are the regulatory and compliance certifications identical?

A: Yes. Both parts maintain identical REACH Status (REACH Unaffected), ECCN (EAR99), and HTSUS (8541.10.0080) classifications.