MBRD340 Equivalent & Substitute Parts

Part Overview

The MBRD340 is a Schottky rectifier diode manufactured by SMC Diode Solutions, rated for 40 V DC reverse voltage and 3 A average rectified current in a surface mount DPAK package. This component is classified as Active product status and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). The MBRD340 serves as a fast recovery rectifier suitable for power conversion and switching applications requiring low forward voltage drop characteristics inherent to Schottky technology.

Equivalent and substitute parts are identified when alternative manufacturers produce diodes with matching electrical specifications and mechanical compatibility. Substitute parts enable procurement flexibility, inventory management, and supply chain continuity without requiring circuit redesign.

Substiute Parts

MBRD340

SMC Diode SolutionsIn Stock: 30480MBRD340 Datasheet

Current PartRFQ

CSHD3-40 TR13 PBFREE

Central Semiconductor CorpIn Stock: 6759CSHD3-40 TR13 PBFREE Datasheet

SimilarRFQ

VS-MBRD340TR-M3

Vishay General Semiconductor - Diodes DivisionIn Stock: 4358VS-MBRD340TR-M3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MBRD340 are qualified based on the following electrical and mechanical parameters:

Primary Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 3 A
• Technology: Schottky
• Package / Case: TO-252-3, DPAK (2 Leads + Tab), SC-63
• Mounting Type: Surface Mount
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Parameters:

• Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
• Current - Reverse Leakage @ Vr: Within acceptable operating range
• Operating Temperature - Junction: Minimum -40°C to maximum 150°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts identified are CSHD3-40 TR13 PBFREE (Central Semiconductor Corp) and VS-MBRD340TR-M3 (Vishay General Semiconductor - Diodes Division). Both parts meet all primary matching criteria and maintain electrical performance within specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

MBRD340 (SMC Diode Solutions)

The MBRD340 is the primary reference part with Active product status. This part is ROHS3 compliant and REACH affected. Operating temperature range spans -55°C to 150°C, providing extended low-temperature performance. Forward voltage is specified at 600 mV @ 3 A with reverse leakage of 200 µA @ 40 V.

CSHD3-40 TR13 PBFREE (Central Semiconductor Corp)

This substitute part is ROHS3 compliant with REACH unaffected status. Operating temperature range extends to -65°C, providing superior low-temperature capability compared to the MBRD340. Forward voltage is 650 mV @ 3 A, representing a 50 mV increase. Reverse leakage is 100 µA @ 40 V, which is lower than the MBRD340. This part is suitable for applications requiring extended temperature range and lower reverse leakage characteristics.

VS-MBRD340TR-M3 (Vishay General Semiconductor - Diodes Division)

This substitute part is ROHS3 compliant with REACH unaffected status. Operating temperature range is -40°C to 150°C, which is narrower at the low end compared to the MBRD340. Forward voltage matches the MBRD340 at 600 mV @ 3 A. Reverse leakage is specified at 200 µA @ 20 V. Capacitance is provided at 189 pF @ 5 V, 1 MHz. This part maintains electrical equivalence with the MBRD340 and is suitable for standard temperature range applications.

All three parts share identical voltage and current ratings, package configuration, and fast recovery speed characteristics. Selection between these parts depends on specific application requirements regarding operating temperature range, reverse leakage performance, and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can CSHD3-40 TR13 PBFREE be used as a direct replacement for MBRD340?

A: Yes. Both parts are Schottky rectifier diodes with 40 V reverse voltage rating, 3 A average rectified current, and identical DPAK package configuration. Electrical parameters are within compatible ranges. The CSHD3-40 TR13 PBFREE offers extended low-temperature operation to -65°C and lower reverse leakage at 100 µA @ 40 V.

Q: What is the difference in forward voltage between MBRD340 and CSHD3-40 TR13 PBFREE?

A: The MBRD340 specifies 600 mV @ 3 A forward voltage, while CSHD3-40 TR13 PBFREE specifies 650 mV @ 3 A. This 50 mV difference may affect power dissipation in high-current applications. Thermal calculations should account for this variance.

Q: Are all three parts suitable for low-temperature applications below -40°C?

A: The MBRD340 operates to -55°C and CSHD3-40 TR13 PBFREE operates to -65°C. The VS-MBRD340TR-M3 has a minimum operating temperature of -40°C. For applications requiring operation below -40°C, select either MBRD340 or CSHD3-40 TR13 PBFREE.

Q: Do all substitute parts use the same DPAK package?

A: Yes. All three parts use TO-252-3, DPAK (2 Leads + Tab), SC-63 package configuration. PCB footprints and mounting procedures are identical across all parts.

Q: What is the difference in reverse leakage current between these parts?

A: MBRD340 specifies 200 µA @ 40 V. CSHD3-40 TR13 PBFREE specifies 100 µA @ 40 V, which is lower. VS-MBRD340TR-M3 specifies 200 µA @ 20 V. Lower reverse leakage reduces standby power consumption in applications with sustained reverse bias conditions.

Q: Are all parts RoHS3 compliant?

A: Yes. All three parts are ROHS3 compliant. MBRD340 is REACH affected, while CSHD3-40 TR13 PBFREE and VS-MBRD340TR-M3 are REACH unaffected.

Q: What is the moisture sensitivity level for these diodes?

A: All three parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life without moisture control requirements.

Q: Can VS-MBRD340TR-M3 replace MBRD340 in all applications?

A: VS-MBRD340TR-M3 is electrically equivalent to MBRD340 for standard temperature range applications (-40°C to 150°C). Applications requiring operation below -40°C require MBRD340 or CSHD3-40 TR13 PBFREE.