SS33 V7G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS33 V7G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30V DC reverse voltage and 3A average rectified current in a DO-214AB (SMC) surface mount package. This component is discontinued at DiGi Electronics, necessitating identification of equivalent and substitute parts for ongoing design requirements and procurement needs. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts provide functional alternatives with modified performance parameters within acceptable application ranges.

Substiute Parts

SS33 V7G

Taiwan Semiconductor CorporationIn Stock: 1048SS33 V7G Datasheet

Current PartRFQ

SS33

Fairchild SemiconductorIn Stock: 26236SS33 Datasheet

DirectRFQ

B530C-13-F

Diodes IncorporatedIn Stock: 17088B530C-13-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS33 V7G is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 30V
• Technology: Schottky
• Mounting Type: Surface Mount
• Package / Case: DO-214AB, SMC
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 500 µA @ 30V

Allowable Variation Parameters:

• Current - Average Rectified (Io): Equal or greater than 3A
• Operating Temperature - Junction: Equal to or exceeding -55°C to 125°C range
• Forward Voltage (Vf): Acceptable within typical Schottky diode specifications

Parts are classified as direct equivalents when all mandatory parameters match exactly. Parts are classified as substitutes when mandatory parameters match but current rating or temperature range exceeds the original specification, providing enhanced performance margins.

Parameter Comparison

Engineering Selection Recommendations

SS33 (Fairchild Semiconductor) - Direct Equivalent:

The Fairchild Semiconductor SS33 is a direct functional equivalent to the SS33 V7G. Both parts share identical voltage rating (30V), current rating (3A), package type (DO-214AB, SMC), and fast recovery speed characteristics. The Fairchild part maintains active product status with 26,200 units in stock, ensuring procurement availability. The extended operating temperature range (-55°C to 150°C versus -55°C to 125°C) provides additional thermal margin. This part is the primary replacement for discontinued SS33 V7G applications.

B530C-13-F (Diodes Incorporated) - Substitute with Enhanced Current Rating:

The B530C-13-F is a functional substitute rated for 5A average rectified current, compared to the 3A rating of the SS33 V7G. Both parts maintain the 30V reverse voltage specification, identical package type (DO-214AB, SMC), and fast recovery speed. The higher current rating provides design margin for applications operating near the 3A limit. The B530C-13-F is ROHS3 compliant and maintains active product status with 17,065 units in stock. Forward voltage specification (550 mV @ 5A) is typical for Schottky diodes at elevated current levels. This part is suitable for applications where increased current capacity is beneficial or where thermal derating considerations apply.

Frequently Asked Questions (FAQ)

Q: Can the SS33 (Fairchild Semiconductor) be used as a direct replacement for the SS33 V7G?

A: Yes. The Fairchild SS33 is a direct equivalent. Both parts have identical voltage rating (30V), current rating (3A), package type (DO-214AB, SMC), and fast recovery speed characteristics. The Fairchild part has an extended operating temperature range and is currently in active production.

Q: What is the difference between the SS33 and B530C-13-F?

A: The primary difference is the average rectified current rating. The SS33 is rated for 3A, while the B530C-13-F is rated for 5A. Both maintain the 30V reverse voltage specification and DO-214AB package type. The B530C-13-F can be used in applications where the SS33 V7G is specified, provided the circuit design accommodates the higher current capability.

Q: Are all three parts in the same package?

A: Yes. The SS33 V7G, SS33 (Fairchild), and B530C-13-F all use the DO-214AB (SMC) surface mount package, ensuring mechanical and electrical compatibility on printed circuit boards.

Q: What does "Fast Recovery ≤ 500ns, > 200mA (Io)" mean?

A: This specification indicates that the diode has a reverse recovery time of 500 nanoseconds or less when switching at currents greater than 200 milliamps. This fast recovery characteristic is essential for high-frequency switching applications and reduces switching losses.

Q: Can the B530C-13-F be used in all applications where the SS33 V7G is specified?

A: The B530C-13-F can be used in applications where the SS33 V7G is specified, as it meets or exceeds all mandatory electrical parameters. The higher current rating (5A versus 3A) provides additional design margin. However, circuit designers should confirm that the application does not have current-limiting requirements that would be violated by the higher-rated component.

Q: What is the significance of the operating temperature range difference?

A: The SS33 (Fairchild) and B530C-13-F both support -55°C to 150°C operation, compared to -55°C to 125°C for the SS33 V7G. This extended range provides additional thermal margin for applications operating in elevated ambient temperatures or with high power dissipation.

Q: Are these parts RoHS compliant?

A: The SS33 V7G and B530C-13-F are both ROHS3 compliant. RoHS compliance status for the Fairchild SS33 is not specified in the provided data.

Q: What is the reverse leakage current specification?

A: All three parts have identical reverse leakage current specification of 500 µA at 30V reverse voltage. This parameter defines the small current that flows through the diode when it is reverse-biased and is important for low-power applications where leakage current must be minimized.