SS320 Schottky Diode 200V 3A DO-214AB Equivalent & Substitute Parts

Part Overview

The SS320 is an active Schottky rectifier diode rated for 200V DC reverse voltage and 3A average rectified current in a surface mount DO-214AB (SMC) package. This component is manufactured by Taiwan Semiconductor Corporation and is ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). The SS320 serves as a fast recovery rectifier for power conversion and protection applications requiring low forward voltage drop and rapid switching characteristics. Equivalent and substitute parts are identified based on matching electrical ratings, package compatibility, and operational specifications to ensure direct circuit board replacement capability.

Substiute Parts

SS320

Taiwan Semiconductor CorporationIn Stock: 300275SS320 Datasheet

Current PartRFQ

30BQ200

SMC Diode SolutionsIn Stock: 354030BQ200 Datasheet

DirectRFQ

MB320_R1_00001

Panjit International Inc.In Stock: 5095MB320_R1_00001 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SS320 are classified based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) Maximum: 200V minimum
• Package / Case: DO-214AB (SMC) surface mount configuration
• Technology: Schottky rectifier diode
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

Secondary Compatibility Parameters:

• Current - Average Rectified (Io): 3A or greater
• Voltage - Forward (Vf) @ If: Within acceptable operating range
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating Temperature - Junction: Minimum -55°C to maximum 150°C or greater

Parts meeting all primary criteria and maintaining compatibility within secondary parameters are classified as direct substitutes. The 30BQ200 and MB320_R1_00001 satisfy these requirements and are suitable for direct replacement in applications utilizing the SS320.

Parameter Comparison

Engineering Selection Recommendations

30BQ200 (SMC Diode Solutions): The 30BQ200 is a direct substitute meeting all primary package and voltage specifications. This part maintains the DO-214AB (SMC) surface mount configuration and 200V reverse voltage rating. The forward voltage drop is 30mV lower than the SS320 at 3A operation, resulting in reduced power dissipation. The operating temperature range extends to 175°C, providing enhanced thermal margin. Reverse leakage current is specified at 1mA, which is higher than the SS320 specification. This part is ROHS3 compliant with MSL 1 rating and active product status.

MB320_R1_00001 (Panjit International Inc.): The MB320_R1_00001 is a direct substitute with identical 3A current rating and 200V reverse voltage specification. This part features the lowest forward voltage drop at 900mV @ 3A, providing optimal efficiency in power conversion applications. Reverse leakage current is specified at 50µA, which is lower than the SS320. The operating temperature range extends to 175°C with a lower minimum junction temperature of -65°C. This part is ROHS3 compliant with MSL 1 rating and active product status. REACH status is unaffected, matching the SS320 classification.

Both substitute parts are suitable for direct replacement in applications where the SS320 is currently specified, provided that the differences in forward voltage drop and reverse leakage current are acceptable within the circuit design parameters.

Frequently Asked Questions (FAQ)

Q: Can the 30BQ200 be used as a direct replacement for the SS320? A: Yes. The 30BQ200 meets all primary substitution criteria: 200V reverse voltage rating, DO-214AB (SMC) surface mount package, Schottky technology, and ROHS3 compliance. Both parts are active products with identical fast recovery speed specifications. The 30mV lower forward voltage drop and higher reverse leakage current must be evaluated within the specific circuit application.

Q: What is the primary difference between the MB320_R1_00001 and the SS320? A: The MB320_R1_00001 has a lower forward voltage drop (900mV versus 950mV at 3A), lower reverse leakage current (50µA versus 100µA), and an extended operating temperature range (-65 to 175°C versus -55 to 150°C). All other electrical and mechanical specifications are equivalent.

Q: Are all three parts packaged identically? A: Yes. The SS320, 30BQ200, and MB320_R1_00001 are all packaged in the DO-214AB (SMC) surface mount configuration, enabling direct board-level replacement without layout modifications.

Q: Which substitute part has the lowest power dissipation? A: The MB320_R1_00001 exhibits the lowest forward voltage drop at 900mV @ 3A, resulting in the lowest power dissipation among the three parts. The 30BQ200 is intermediate at 920mV @ 3A, and the SS320 is highest at 950mV @ 3A.

Q: Do all parts meet RoHS compliance requirements? A: Yes. The SS320, 30BQ200, and MB320_R1_00001 are all ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity level, suitable for standard surface mount assembly processes.

Q: What is the significance of the reverse leakage current differences? A: Reverse leakage current affects standby power consumption and circuit performance at elevated temperatures. The SS320 specifies 100µA, the MB320_R1_00001 specifies 50µA, and the 30BQ200 specifies 1mA @ 200V. Lower leakage current reduces standby power dissipation in applications with sustained reverse bias conditions.

Q: Can the 30BQ200 be used in applications requiring the full -55 to 150°C temperature range? A: Yes. The 30BQ200 operating temperature range of -55 to 175°C encompasses the SS320 range of -55 to 150°C, providing full compatibility across the specified temperature band.

Q: Are there any REACH or ECCN compliance differences between the substitute parts? A: The SS320 and MB320_R1_00001 are both REACH unaffected. The 30BQ200 is REACH affected. All three parts are classified as EAR99 for export control purposes. Compliance requirements must be evaluated based on end-use application and destination.