MBR3045CTF-G1 Equivalent & Substitute Parts

Part Overview

The MBR3045CTF-G1 is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 45 V DC reverse voltage and 15 A average rectified current per diode. Manufactured by Diodes Incorporated, this component features a TO-220-3 Full Pack through-hole package with fast recovery characteristics suitable for high-frequency rectification applications.

The MBR3045CTF-G1 carries an Obsolete product status. Locating equivalent and substitute parts is necessary to support ongoing maintenance, repair, and production requirements for systems utilizing this component. Active alternatives and parametric equivalents are available from multiple manufacturers.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V
Current - Average Rectified (Io) (per Diode)	15 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 45 V
Operating Temperature - Junction	-65°C ~ 150°C
Mounting Type	Through Hole
Package / Case	TO-220-3 Full Pack
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the MBR3045CTF-G1 is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 45 V
Current - Average Rectified (Io) (per Diode): 15 A
Voltage - Forward (Vf) (Max) @ If: 700 mV @ 15 A
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr: 100 µA @ 45 V
Mounting Type: Through Hole
Package / Case: TO-220-3 Full Pack

Parametric Equivalents match all primary criteria and are direct functional replacements. These parts are identified as Parametric Equivalent classifications.

Manufacturer Recommended alternatives may vary in current rating or reverse leakage specifications while maintaining the same voltage class and package form factor. These are suitable for applications where the lower current rating or different thermal characteristics are acceptable.

Parameter Comparison

Parameter	MBR3045CTF-G1 (Main)	MBR3045CTF-E1	MBRF2045CTG	FYPF1545DNTU	MBR3045FCT_T0_00001
Manufacturer	Diodes Incorporated	Diodes Incorporated	onsemi	onsemi	Panjit International Inc.
Product Status	Obsolete	Active	Obsolete	Obsolete	Active
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	45 V	45 V	45 V	45 V	45 V
Current - Average Rectified (Io) (per Diode)	15 A	15 A	10 A	15 A	15 A
Voltage - Forward (Vf) (Max) @ If	700 mV @ 15 A	700 mV @ 15 A	570 mV @ 10 A	700 mV @ 15 A	700 mV @ 15 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	100 µA @ 45 V	100 µA @ 45 V	100 µA @ 45 V	1 mA @ 45 V	100 µA @ 45 V
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 175°C	-65°C ~ 150°C	-65°C ~ 175°C
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3 Full Pack
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable
REACH Status	REACH Affected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MBR3045CTF-E1 (Diodes Incorporated)

This part is a parametric equivalent to the MBR3045CTF-G1 with identical electrical specifications and package configuration. The MBR3045CTF-E1 carries Active product status, ensuring ongoing availability and manufacturer support. This part is REACH Unaffected, providing regulatory advantage over the main part. Inventory availability is substantial at 1935 pieces. This is the primary recommended substitute for direct replacement applications.

MBR3045FCT_T0_00001 (Panjit International Inc.)

This part is a parametric equivalent matching all critical electrical parameters of the MBR3045CTF-G1. The MBR3045FCT_T0_00001 carries Active product status and is REACH Unaffected. The operating temperature range extends to 175°C, providing enhanced thermal capability. The supplier device package is ITO-220AB. Inventory availability is 2202 pieces. This part is suitable for applications requiring extended temperature performance.

MBRF2045CTG (onsemi)

This part is a manufacturer-recommended alternative with reduced current rating of 10 A per diode compared to the 15 A specification of the MBR3045CTF-G1. The MBRF2045CTG maintains the 45 V voltage rating and TO-220-3 Full Pack package. Forward voltage is 570 mV at 10 A, lower than the main part. Operating temperature range extends to 175°C. This part is suitable only for applications where the 10 A current rating is sufficient. Product status is Obsolete. Inventory availability is high at 15731 pieces.

FYPF1545DNTU (onsemi)

This part is a parametric equivalent with matching 15 A current rating and 700 mV forward voltage specification. Reverse leakage is specified at 1 mA at 45 V, which is higher than the 100 µA specification of the main part. Operating temperature range extends to 150°C. Product status is Obsolete. This part is suitable for applications where the higher reverse leakage specification is acceptable.

Frequently Asked Questions (FAQ)

Q: Can MBR3045CTF-E1 be used as a direct replacement for MBR3045CTF-G1?

A: Yes. The MBR3045CTF-E1 is a parametric equivalent with identical electrical specifications, diode configuration, voltage rating, current rating, forward voltage, and package form factor. The primary advantage is Active product status compared to the Obsolete status of the MBR3045CTF-G1.

Q: What is the difference between MBR3045CTF-G1 and MBRF2045CTG?

A: The MBRF2045CTG has a reduced current rating of 10 A per diode compared to 15 A for the MBR3045CTF-G1. Both maintain 45 V voltage rating and TO-220-3 Full Pack package. The MBRF2045CTG is suitable only for applications where 10 A current capacity is sufficient.

Q: Can FYPF1545DNTU replace MBR3045CTF-G1 in all applications?

A: The FYPF1545DNTU matches the voltage, current, and forward voltage specifications of the MBR3045CTF-G1. However, reverse leakage is specified at 1 mA at 45 V compared to 100 µA for the main part. This higher leakage may affect performance in applications sensitive to reverse leakage current.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status, matching the compliance level of the MBR3045CTF-G1.

Q: What is the difference between the TO-220F-3 and ITO-220AB package designations?

A: Both are TO-220-3 Full Pack through-hole packages. The TO-220F-3 designation is used by Diodes Incorporated and onsemi. The ITO-220AB designation is used by Panjit International Inc. These represent equivalent physical and electrical package specifications.

Q: Which substitute part has the best availability?

A: MBRF2045CTG has the highest inventory at 15731 pieces. However, this part has a reduced current rating of 10 A. For parametric equivalents with 15 A rating, MBR3045CTF-E1 has 1935 pieces and MBR3045FCT_T0_00001 has 2202 pieces in stock.

Q: What is the significance of REACH Unaffected status?

A: REACH Unaffected status indicates the part is not subject to REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulatory requirements. The MBR3045CTF-G1 is REACH Affected, while all substitute parts listed are REACH Unaffected, providing regulatory advantage for new designs and long-term supply chain compliance.

Q: Can MBR3045FCT_T0_00001 operate at higher temperatures than MBR3045CTF-G1?

A: Yes. The MBR3045FCT_T0_00001 has an operating temperature range of -65°C to 175°C compared to -65°C to 150°C for the MBR3045CTF-G1. This provides 25°C additional high-temperature capability.

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