MBR340RL Equivalent & Substitute Parts

Part Overview

The MBR340RL is a Schottky rectifier diode rated for 40 V DC reverse voltage and 3 A average rectified current, manufactured by onsemi in a through-hole axial package (DO-201AA/DO-27). This component is classified as obsolete product status. Due to its obsolete designation, equivalent and substitute parts from active manufacturers are necessary for new designs and ongoing production requirements. Substitute parts maintain the same electrical ratings and mechanical compatibility while offering active product status and improved availability.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	3 A
Voltage - Forward (Vf) (Max) @ If	600 mV @ 3 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	600 µA @ 40 V
Mounting Type	Through Hole
Package / Case	DO-201AA, DO-27, Axial
Operating Temperature - Junction	-65°C ~ 175°C
Technology	Schottky

Substitute Part Grouping Explanation

Substitution of the MBR340RL is determined by strict equivalence of the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 3 A
Technology: Schottky
Mounting Type: Through Hole
Package / Case: Axial configuration (DO-201AD, DO-27, or equivalent axial geometry)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Substitute parts range from 490 mV to 525 mV @ 3 A (main part: 600 mV)
Current - Reverse Leakage @ Vr: Substitute parts range from 100 µA to 2 mA @ 40 V (main part: 600 µA)
Operating Temperature - Junction: Substitute parts range from -65°C to -50°C minimum; maximum from 125°C to 175°C (main part: -65°C ~ 175°C)

All listed substitute parts meet or exceed the core electrical specifications and maintain through-hole axial package compatibility. Substitute parts are sourced from active manufacturers with current product status.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ 3A	Reverse Leakage @ 40V	Operating Temp (Junction)	Product Status	Package
MBR340RL	onsemi	40 V	3 A	600 mV	600 µA	-65°C ~ 175°C	Obsolete	DO-201AA, DO-27, Axial
1N5822	Microchip Technology	40 V	3 A	500 mV	100 µA	-65°C ~ 125°C	Active	B, Axial
1N5822-AP	Micro Commercial Co	40 V	3 A	525 mV	500 µA	-55°C ~ 125°C	Active	DO-201AD, Axial
1N5822-E3/54	Vishay General Semiconductor - Diodes Division	40 V	3 A	525 mV	2 mA	-65°C ~ 125°C	Active	DO-201AD, Axial
1N5822-E3/73	Vishay General Semiconductor - Diodes Division	40 V	3 A	525 mV	2 mA	-65°C ~ 125°C	Active	DO-201AD, Axial
1N5822-TP	Micro Commercial Co	40 V	3 A	525 mV	500 µA	-55°C ~ 125°C	Active	DO-201AD, Axial
SB340-E3/54	Vishay General Semiconductor - Diodes Division	40 V	3 A	490 mV	500 µA	-65°C ~ 125°C	Active	DO-201AD, Axial
SB340-E3/73	Vishay General Semiconductor - Diodes Division	40 V	3 A	490 mV	500 µA	-65°C ~ 125°C	Active	DO-201AD, Axial
SB340E-G	Comchip Technology	40 V	3 A	500 mV	500 µA	-65°C ~ 125°C	Active	DO-201AD, Axial
SR304-AP	Micro Commercial Co	40 V	3 A	500 mV	500 µA	-50°C ~ 125°C	Active	DO-201AD, Axial
SR304-BP	Micro Commercial Co	40 V	3 A	500 mV	500 µA	-50°C ~ 125°C	Active	DO-201AD, Axial

Engineering Selection Recommendations

Product Status Consideration: The MBR340RL is designated as obsolete. All listed substitute parts are classified as active product status, ensuring ongoing availability, manufacturing support, and compliance with current industry standards.

Compliance and Certification: Substitute parts from Vishay General Semiconductor (1N5822-E3/54, 1N5822-E3/73, SB340-E3/54, SB340-E3/73) and Micro Commercial Co (1N5822-TP, SR304-AP, SR304-BP) carry ROHS3 compliance certification. The main part MBR340RL is RoHS non-compliant. Selection of ROHS3-compliant substitutes aligns with current regulatory requirements for new designs and manufacturing.

Electrical Performance: All substitute parts maintain the 40 V reverse voltage and 3 A current ratings. Forward voltage characteristics of substitute parts (490 mV to 525 mV @ 3 A) are superior to the main part (600 mV @ 3 A), resulting in lower power dissipation and improved efficiency. Reverse leakage current in substitute parts ranges from 100 µA to 2 mA, compared to 600 µA in the main part, indicating improved leakage characteristics across the substitute range.

Temperature Operating Range: Substitute parts operate within -65°C to -50°C minimum and -125°C maximum junction temperatures. Applications requiring the full -65°C to 175°C range of the MBR340RL should select substitutes with -65°C minimum rating: 1N5822 (Microchip), 1N5822-E3/54, 1N5822-E3/73, SB340-E3/54, SB340-E3/73, and SB340E-G. Applications with -50°C minimum requirement can utilize SR304-AP and SR304-BP.

Package Compatibility: All substitute parts are supplied in DO-201AD axial package configuration, which is mechanically compatible with through-hole axial mounting. The MBR340RL specification lists DO-201AA and DO-27 packages; DO-201AD is the modern equivalent standard for this component class.

Frequently Asked Questions (FAQ)

Q: Can MBR340RL be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts meet the core electrical specifications: 40 V reverse voltage, 3 A average rectified current, Schottky technology, fast recovery speed, and through-hole axial package configuration. Direct mechanical and electrical substitution is supported.

Q: What is the difference between 1N5822 variants (1N5822-AP, 1N5822-E3/54, 1N5822-E3/73, 1N5822-TP)?

A: All 1N5822 variants share identical electrical ratings (40 V, 3 A, Schottky). Differences exist in packaging format (bulk versus cut tape), manufacturer (Microchip Technology versus Micro Commercial Co versus Vishay), and RoHS compliance status. 1N5822-E3/54 and 1N5822-E3/73 are ROHS3 compliant; 1N5822-AP and 1N5822-TP are also ROHS3 compliant. Selection depends on packaging requirements and supply chain preferences.

Q: What is the difference between SB340 and 1N5822 substitute families?

A: Both SB340 and 1N5822 families meet the 40 V, 3 A Schottky specifications. SB340 variants (SB340-E3/54, SB340-E3/73, SB340E-G) exhibit lower forward voltage (490 mV to 500 mV @ 3 A) compared to 1N5822 variants (500 mV to 525 mV @ 3 A). This results in reduced power dissipation in SB340 applications. Both families are suitable for direct substitution.

Q: Are SR304-AP and SR304-BP suitable for all applications?

A: SR304-AP and SR304-BP are suitable for applications with operating temperature requirements of -50°C to 125°C. Applications requiring operation below -50°C junction temperature should select substitute parts with -65°C minimum rating: 1N5822 (Microchip), 1N5822-E3/54, 1N5822-E3/73, SB340-E3/54, SB340-E3/73, or SB340E-G.

Q: What is the significance of the forward voltage difference between MBR340RL (600 mV) and substitute parts (490-525 mV)?

A: Lower forward voltage in substitute parts results in reduced power dissipation during forward conduction. For a 3 A load, the MBR340RL dissipates 1.8 W (600 mV × 3 A), while substitute parts dissipate 1.47 W to 1.575 W (490-525 mV × 3 A). This represents a 12-18% reduction in power loss, improving thermal performance and efficiency.

Q: What packaging formats are available for substitute parts?

A: Substitute parts are supplied in bulk, cut tape (CT), and tape & reel (TR) packaging formats. Bulk packaging is available for 1N5822, 1N5822-AP, SR304-AP, and SR304-BP. Cut tape packaging is available for 1N5822-E3/54, 1N5822-E3/73, 1N5822-TP, SB340-E3/54, SB340-E3/73, and SB340E-G. Selection depends on production volume and assembly process requirements.

Q: Is the MBR340RL still available for purchase?

A: The MBR340RL is classified as obsolete product status. Inventory availability is limited to existing stock (1485 Pcs reported). For new designs and ongoing production, active substitute parts with current manufacturing support are recommended.

Q: Do all substitute parts carry RoHS compliance certification?

A: Substitute parts from Vishay General Semiconductor (1N5822-E3/54, 1N5822-E3/73, SB340-E3/54, SB340-E3/73) and Micro Commercial Co (1N5822-TP, SR304-AP, SR304-BP) carry ROHS3 compliance. The 1N5822 from Microchip Technology and SB340E-G from Comchip Technology do not specify RoHS status in the provided data. Applications requiring RoHS compliance should select ROHS3-certified variants.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message