MBR6045PT Equivalent & Substitute Parts

Part Overview

The MBR6045PT is a Schottky diode array manufactured by Taiwan Semiconductor Corporation, configured as a 1 Pair Common Cathode device rated for 45 V DC reverse voltage and 60 A average rectified current per diode. The device is packaged in TO-247-3 through-hole configuration and is classified as Active product status with ROHS3 compliance. Substitute parts are identified to address application requirements where current rating, forward voltage characteristics, or thermal specifications differ from the primary MBR6045PT specification.

Key Parameters

Parameter	MBR6045PT
Manufacturer	Taiwan Semiconductor Corporation
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io) (per Diode)	60 A
Voltage - Forward (Vf) (Max) @ If	820 mV @ 60 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 45 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-247-3
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MBR6045PT are selected based on strict electrical and mechanical parameter compatibility. All substitute devices share the following mandatory characteristics:

Common Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 45 V
Mounting Type: Through Hole
Package / Case: TO-247-3
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Product Status: Active
RoHS Status: ROHS3 Compliant

Variable Parameters Defining Substitution Groups:

Current - Average Rectified (Io) (per Diode): 15 A, 20 A, or 30 A
Voltage - Forward (Vf) (Max) @ If: Varies by current rating
Current - Reverse Leakage @ Vr: Varies by device
Operating Temperature - Junction (Max): 150°C or 175°C or 200°C

All substitute parts are manufactured by STMicroelectronics and maintain electrical compatibility within their respective current rating classifications.

Parameter Comparison

Part Number	Manufacturer	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Current - Reverse Leakage @ Vr	Operating Temperature - Junction (Max)	Inventory (Pcs)
MBR6045PT	Taiwan Semiconductor Corporation	60 A	820 mV @ 60 A	1 mA @ 45 V	150°C	6240
STPS3045CW	STMicroelectronics	15 A	570 mV @ 15 A	200 µA @ 45 V	200°C	1359
STPS30L45CW	STMicroelectronics	15 A	550 mV @ 15 A	400 µA @ 45 V	150°C	2600
STPS4045CW	STMicroelectronics	20 A	760 mV @ 20 A	200 µA @ 45 V	175°C	1990
STPS40L45CW	STMicroelectronics	20 A	530 mV @ 20 A	600 µA @ 45 V	150°C	2300
STPS6045CW	STMicroelectronics	30 A	630 mV @ 30 A	500 µA @ 45 V	175°C	2200
STPS60L45CW	STMicroelectronics	30 A	550 mV @ 30 A	1.5 mA @ 45 V	150°C	1451
STPS61L45CW	STMicroelectronics	30 A	560 mV @ 30 A	1.5 mA @ 45 V	150°C	1410

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, consistent with the MBR6045PT primary specification. Selection of substitute devices is determined by application current requirements and thermal operating conditions.

For applications requiring current ratings below 60 A:

STPS40L45CW and STPS4045CW are suitable for 20 A applications. STPS40L45CW provides lower forward voltage (530 mV @ 20 A) compared to STPS4045CW (760 mV @ 20 A), with trade-off of higher reverse leakage current (600 µA versus 200 µA @ 45 V).

STPS6045CW, STPS60L45CW, and STPS61L45CW are suitable for 30 A applications. STPS6045CW operates at maximum junction temperature of 175°C with forward voltage of 630 mV @ 30 A. STPS60L45CW and STPS61L45CW both operate at 150°C maximum with forward voltages of 550 mV and 560 mV respectively, with reverse leakage of 1.5 mA @ 45 V.

For applications requiring current ratings below 20 A:

STPS3045CW and STPS30L45CW are suitable for 15 A applications. STPS3045CW operates at maximum junction temperature of 200°C with forward voltage of 570 mV @ 15 A. STPS30L45CW operates at 150°C maximum with forward voltage of 550 mV @ 15 A and higher reverse leakage (400 µA @ 45 V).

All substitute parts maintain identical 45 V DC reverse voltage rating, TO-247-3 package configuration, and fast recovery Schottky technology specifications.

Frequently Asked Questions (FAQ)

Q: Can STPS40L45CW be used as a direct replacement for MBR6045PT?

A: STPS40L45CW is not a direct replacement. While both devices share 45 V DC reverse voltage rating, TO-247-3 package, and Schottky technology, STPS40L45CW is rated for 20 A average rectified current compared to MBR6045PT's 60 A rating. Substitution is valid only for applications where maximum required current does not exceed 20 A.

Q: What is the difference between STPS60L45CW and STPS6045CW?

A: Both devices are rated for 30 A average rectified current at 45 V DC reverse voltage in TO-247-3 package. STPS6045CW operates at maximum junction temperature of 175°C with forward voltage of 630 mV @ 30 A. STPS60L45CW operates at 150°C maximum with lower forward voltage of 550 mV @ 30 A but higher reverse leakage current of 1.5 mA @ 45 V compared to STPS6045CW's 500 µA @ 45 V.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (STPS3045CW, STPS30L45CW, STPS4045CW, STPS40L45CW, STPS6045CW, STPS60L45CW, STPS61L45CW) are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited) and REACH Unaffected status, consistent with MBR6045PT specifications.

Q: What is the significance of the "L" designation in part numbers like STPS40L45CW?

A: The "L" designation indicates a variant within the STMicroelectronics STPS series. Devices with "L" designation typically exhibit different forward voltage and reverse leakage characteristics compared to non-L variants at the same current rating. For example, STPS40L45CW has lower forward voltage (530 mV @ 20 A) than STPS4045CW (760 mV @ 20 A), with corresponding differences in reverse leakage current specifications.

Q: Can STPS3045CW be used in applications designed for MBR6045PT?

A: STPS3045CW substitution is valid only for applications where maximum required current does not exceed 15 A. The device shares 45 V DC reverse voltage rating, TO-247-3 package, Schottky technology, and fast recovery speed characteristics. STPS3045CW operates at higher maximum junction temperature (200°C) compared to MBR6045PT (150°C).

Q: What thermal considerations apply when selecting substitute parts?

A: Operating temperature range varies among substitute devices. MBR6045PT operates from -55°C to 150°C junction temperature. STPS3045CW extends to 200°C maximum, while STPS4045CW reaches 175°C. STPS30L45CW, STPS40L45CW, STPS60L45CW, and STPS61L45CW are limited to 150°C maximum. Application thermal environment and heat dissipation requirements determine appropriate device selection.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts are packaged in TO-247-3 through-hole configuration, identical to MBR6045PT. All devices are supplied in Tube packaging format by STMicroelectronics.

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