SBL535 Equivalent & Substitute Parts

Part Overview

The SBL535 is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 35 V DC reverse voltage and 5 A average rectified current in a Through Hole TO-220AC package. This component is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating the Through Hole mounting requirement.

Substiute Parts

SBL535

Diodes IncorporatedIn Stock: 706SBL535 Datasheet

Current PartRFQ

MBR735G

onsemiIn Stock: 7039MBR735G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SBL535 is determined by the following critical electrical and mechanical parameters:

Voltage Compatibility: The substitute part must maintain a DC reverse voltage rating of 35 V or greater to ensure safe operation across the full specified voltage range.

Current Rating: The substitute part must support an average rectified current of 5 A or greater. Parts with higher current ratings remain compatible as they operate within the same voltage class and package footprint.

Technology: Schottky diode technology must be maintained to preserve fast recovery characteristics and forward voltage behavior.

Package and Mounting: The substitute part must use Through Hole mounting in a TO-220-2 package configuration to ensure mechanical and electrical compatibility with existing PCB layouts.

Thermal Range: The substitute part must support the operating junction temperature range of -65°C to 150°C or higher to maintain performance across specified environmental conditions.

Compliance: RoHS3 compliance is required for regulatory alignment with the original component.

Parameter Comparison

Engineering Selection Recommendations

The MBR735G manufactured by onsemi is a direct substitute for the obsolete SBL535. Both components share identical voltage and package specifications, with the MBR735G providing enhanced performance characteristics:

Current Capacity: The MBR735G supports 7.5 A average rectified current, exceeding the SBL535 requirement of 5 A. This higher rating provides design margin without compromising compatibility.

Reverse Leakage: The MBR735G exhibits lower reverse leakage current (100 µA versus 500 µA at 35 V), resulting in improved efficiency and reduced power dissipation.

Thermal Range: The MBR735G extends the maximum junction temperature to 175°C compared to the SBL535 at 150°C, supporting broader operational environments.

Compliance Status: Both components maintain ROHS3 compliance. The MBR735G is REACH Unaffected, whereas the SBL535 is REACH Affected, providing regulatory advantage for new designs.

Product Status: Both components are classified as Obsolete. The MBR735G remains in active inventory (6980 units available) compared to the SBL535 (637 units available), ensuring superior procurement availability.

Frequently Asked Questions (FAQ)

Q: Can the MBR735G directly replace the SBL535 in existing designs?

A: Yes. Both components share identical voltage ratings (35 V), package configuration (TO-220-2), and mounting type (Through Hole). The MBR735G meets or exceeds all electrical specifications of the SBL535.

Q: What is the significance of the higher current rating on the MBR735G?

A: The MBR735G is rated for 7.5 A average rectified current versus the SBL535 at 5 A. This higher rating indicates the substitute can safely handle the original design current with additional margin. No circuit modifications are required.

Q: Are there differences in forward voltage characteristics?

A: Forward voltage specifications are provided at different test conditions. The SBL535 specifies 550 mV at 5 A, while the MBR735G specifies 840 mV at 15 A. Direct comparison at identical current levels is not available from the provided data. Circuit performance should be validated if forward voltage drop is critical to design function.

Q: Does the extended temperature range of the MBR735G affect compatibility?

A: No. The MBR735G supports -65°C to 175°C, which encompasses the SBL535 range of -65°C to 150°C. The extended upper limit provides additional operational margin without introducing incompatibility.

Q: What is the impact of lower reverse leakage current in the MBR735G?

A: Lower reverse leakage (100 µA versus 500 µA at 35 V) reduces standby power consumption and heat generation. This represents an improvement over the original component with no negative impact on circuit function.

Q: Are both components RoHS compliant?

A: Yes. Both the SBL535 and MBR735G are ROHS3 compliant. The MBR735G additionally carries REACH Unaffected status, providing enhanced regulatory alignment for new product certifications.

Q: What is the availability status of these components?

A: The SBL535 is obsolete with limited inventory (637 units). The MBR735G is also obsolete but maintains significantly higher stock availability (6980 units), supporting procurement continuity for ongoing production requirements.