MBR40100PT Equivalent & Substitute Parts

Part Overview

The MBR40100PT is a Schottky diode array in a 1 Pair Common Cathode configuration rated for 100 V DC reverse voltage and 40 A average rectified current per diode. Manufactured by Taiwan Semiconductor Corporation, this through-hole component is housed in a TO-247-3 package and is classified as Active with full RoHS3 compliance. Substitute parts are necessary when the primary part experiences extended lead times, inventory constraints, or when design requirements permit operation within alternative electrical specifications while maintaining package compatibility and core functional parameters.

Substiute Parts

MBR40100PT

Taiwan Semiconductor CorporationIn Stock: 1365MBR40100PT Datasheet

Current PartRFQ

MBR40100WT

SMC Diode SolutionsIn Stock: 4245MBR40100WT Datasheet

DirectRFQ

40CPQ100

SMC Diode SolutionsIn Stock: 170240CPQ100 Datasheet

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STPS30H100CW

STMicroelectronicsIn Stock: 22259STPS30H100CW Datasheet

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STPS40H100CW

STMicroelectronicsIn Stock: 2969STPS40H100CW Datasheet

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STPS61H100CW

STMicroelectronicsIn Stock: 9283STPS61H100CW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MBR40100PT is determined by strict adherence to the following core parameters:

Mandatory Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 100 V
• Mounting Type: Through Hole
• Package / Case: TO-247-3
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Variable Parameters (Substitution Permitted Within Limits):

• Current - Average Rectified (Io) (per Diode): Substitute parts rated at 15 A, 20 A, or 30 A are acceptable for applications where the circuit design does not require the full 40 A capability
• Operating Temperature - Junction: Substitute parts with maximum junction temperatures of 150°C, 175°C are acceptable
• Current - Reverse Leakage @ Vr: Variations from 500 µA to 16 µA are acceptable
• Voltage - Forward (Vf) (Max) @ If: Variations within the Schottky diode range are acceptable

All substitute parts listed maintain RoHS3 compliance, MSL Level 1, and through-hole TO-247-3 package compatibility.

Parameter Comparison

Engineering Selection Recommendations

MBR40100WT (SMC Diode Solutions) Direct substitute with identical voltage rating and package. Suitable for applications where the 40 A current specification is not fully utilized. Current rating not specified in available data; circuit design must confirm adequacy. REACH Status is Affected; verify compliance requirements for your application region.

40CPQ100 (SMC Diode Solutions) Rated for 20 A average rectified current. Suitable for applications requiring 20 A or less per diode. Lower forward voltage (790 mV @ 20 A) compared to MBR40100PT. REACH Status is Affected; verify compliance requirements for your application region.

STPS30H100CW (STMicroelectronics) Rated for 15 A average rectified current. Suitable for applications requiring 15 A or less per diode. Extended maximum junction temperature to 175°C. Lower reverse leakage current (5 µA @ 100 V) compared to main part. REACH Status is Unaffected.

STPS40H100CW (STMicroelectronics) Rated for 20 A average rectified current. Suitable for applications requiring 20 A or less per diode. Lowest forward voltage (730 mV @ 20 A) among all substitutes. Extended maximum junction temperature to 175°C. Lower reverse leakage current (10 µA @ 100 V) compared to main part. REACH Status is Unaffected.

STPS61H100CW (STMicroelectronics) Rated for 30 A average rectified current. Suitable for applications requiring 30 A or less per diode. Extended maximum junction temperature to 175°C. Lower reverse leakage current (16 µA @ 100 V) compared to main part. REACH Status is Unaffected.

All substitute parts maintain Active product status, RoHS3 compliance, MSL Level 1, and TO-247-3 package compatibility with the MBR40100PT.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part rated for lower current than the MBR40100PT? A: Yes, if your circuit design does not require the full 40 A capability. Substitute parts rated at 15 A, 20 A, or 30 A are electrically compatible with the MBR40100PT provided all other parameters match. The circuit must operate within the current rating of the selected substitute.

Q: Are all substitute parts pin-compatible with the MBR40100PT? A: Yes. All substitute parts use the TO-247-3 package with identical pinout and mounting configuration. Direct mechanical and electrical substitution is possible without PCB modification.

Q: What is the difference between the MBR40100WT and MBR40100PT? A: Both parts are manufactured to the same base specification (MBR40100) with identical voltage rating and package. The primary difference is manufacturer: MBR40100PT is from Taiwan Semiconductor Corporation, while MBR40100WT is from SMC Diode Solutions. The MBR40100WT has REACH Status Affected, whereas the MBR40100PT is REACH Unaffected.

Q: Which substitute offers the lowest forward voltage drop? A: The STPS40H100CW offers the lowest forward voltage at 730 mV @ 20 A, compared to 790 mV or higher for other substitutes. Lower forward voltage reduces power dissipation in the diode.

Q: Can I use STPS61H100CW as a direct replacement for MBR40100PT? A: The STPS61H100CW is electrically compatible with the MBR40100PT in terms of voltage rating, package, and configuration. However, it is rated for 30 A rather than 40 A. Use this substitute only if your circuit operates at 30 A or below.

Q: What is the impact of different reverse leakage currents among the substitutes? A: Reverse leakage current varies from 500 µA (MBR40100PT) to 5 µA (STPS30H100CW). Lower reverse leakage reduces standby power consumption and heat generation. The choice depends on application requirements for leakage performance.

Q: Are there temperature rating differences between substitutes? A: Yes. The MBR40100PT and MBR40100WT are rated to 150°C maximum junction temperature. The STMicroelectronics substitutes (STPS30H100CW, STPS40H100CW, STPS61H100CW) are rated to 175°C maximum junction temperature, providing extended thermal headroom.

Q: Do all substitutes have the same RoHS and REACH compliance status? A: No. The MBR40100PT and STMicroelectronics parts (STPS series) are REACH Unaffected. The SMC Diode Solutions parts (MBR40100WT and 40CPQ100) are REACH Affected. All parts are ROHS3 Compliant and MSL Level 1.