SB530 Schottky Diode Equivalent & Substitute Parts

Part Overview

The SB530 is a Schottky rectifier diode rated for 30 V DC reverse voltage and 5 A average rectified current in a DO-201AD axial through-hole package. Manufactured by onsemi, this component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent and substitute parts from active manufacturers is necessary to maintain design continuity and ensure long-term component availability for new production builds and field replacements.

Substiute Parts

SB530

onsemiIn Stock: 5359SB530 Datasheet

Current PartRFQ

SB530-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 5430SB530-E3/54 Datasheet

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SB530_R2_00001

Panjit International Inc.In Stock: 847SB530_R2_00001 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SB530 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 5 A
• Package / Case: DO-201AD, Axial
• Mounting Type: Through Hole
• Technology: Schottky
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Max) @ If: Substitute parts may vary within the range of 480 mV to 550 mV @ 5 A
• Current - Reverse Leakage @ Vr: Substitute parts may vary from 200 µA to 500 µA @ 30 V
• Operating Temperature - Junction: Substitute parts must maintain minimum -55°C lower bound; upper bound may extend to 150°C or higher
• Capacitance @ Vr, F: Not specified for all substitute parts; variation is acceptable

Two substitute parts meet these criteria: SB530-E3/54 (Vishay General Semiconductor - Diodes Division) and SB530_R2_00001 (Panjit International Inc.). Both maintain identical voltage and current ratings, package configuration, and fast recovery speed characteristics.

Parameter Comparison

Engineering Selection Recommendations

SB530-E3/54 (Vishay General Semiconductor - Diodes Division)

This substitute part is classified as active product status, ensuring ongoing availability and manufacturing support. It maintains full electrical equivalence across all critical parameters: 30 V reverse voltage, 5 A average rectified current, and fast recovery speed characteristics. The forward voltage specification of 480 mV @ 5 A is superior to the original SB530 specification of 550 mV @ 5 A, resulting in lower power dissipation. The extended lower operating temperature range of -65°C provides additional thermal margin compared to the original -55°C specification. ROHS3 compliance and REACH unaffected status confirm regulatory alignment. This part is suitable for direct substitution in applications where the original SB530 was specified.

SB530_R2_00001 (Panjit International Inc.)

This substitute part is classified as active product status with full electrical equivalence across voltage and current ratings. The forward voltage specification matches the original SB530 at 550 mV @ 5 A. The reverse leakage current specification of 200 µA @ 30 V is superior to the original 500 µA specification, indicating lower leakage characteristics. The operating temperature range of -55°C ~ 125°C maintains the lower bound of the original specification but reduces the upper bound by 25°C. ROHS3 compliance and REACH unaffected status confirm regulatory alignment. This part is suitable for direct substitution in applications where the original SB530 was specified, provided the maximum junction temperature requirement does not exceed 125°C.

Frequently Asked Questions (FAQ)

Q: Can SB530-E3/54 and SB530_R2_00001 be used interchangeably with the original SB530?

A: Both substitute parts meet the mandatory electrical and mechanical parameters for direct substitution. SB530-E3/54 and SB530_R2_00001 maintain identical 30 V reverse voltage, 5 A current rating, DO-201AD package configuration, and fast recovery speed characteristics. Selection between substitutes depends on specific application requirements regarding forward voltage, reverse leakage, and operating temperature range.

Q: What are the differences in forward voltage between the substitute parts?

A: SB530-E3/54 specifies 480 mV @ 5 A forward voltage, while both the original SB530 and SB530_R2_00001 specify 550 mV @ 5 A. The 70 mV difference in SB530-E3/54 results in lower power dissipation and reduced thermal load in the application circuit.

Q: How do the reverse leakage current specifications differ?

A: The original SB530 and SB530-E3/54 both specify 500 µA @ 30 V reverse leakage current. SB530_R2_00001 specifies 200 µA @ 30 V, representing a 60% reduction in reverse leakage. Lower reverse leakage improves circuit performance in applications sensitive to leakage current.

Q: Are there operating temperature range differences between the substitutes?

A: SB530-E3/54 extends the lower operating temperature to -65°C compared to the original -55°C specification, providing additional thermal margin for cold environment applications. SB530_R2_00001 maintains the original -55°C lower bound but limits the upper bound to 125°C, compared to the original 150°C specification. Application requirements must be evaluated against these ranges.

Q: Do all parts share the same package and mounting configuration?

A: All three parts use the DO-201AD axial through-hole package. Physical dimensions, lead spacing, and PCB mounting characteristics are identical, enabling direct mechanical substitution without circuit board redesign.

Q: What is the significance of the product status difference?

A: The original SB530 is classified as obsolete, indicating discontinued manufacturing and limited future availability. Both substitute parts are classified as active, ensuring ongoing production, technical support, and long-term component availability for new designs and field replacements.

Q: Are all parts RoHS3 compliant?

A: All three parts are ROHS3 compliant and REACH unaffected, confirming compliance with current environmental and regulatory standards for electronic component manufacturing and distribution.