B0530WSQ-7-F Equivalent & Substitute Parts

Part Overview

The B0530WSQ-7-F is an active Schottky rectifier diode manufactured by Diodes Incorporated, rated for 30V DC reverse voltage and 500mA average rectified current in a surface mount SOD-323 package. This component is designed for fast recovery applications with forward voltage of 450mV at 500mA and operates across the automotive temperature range of -40°C to 125°C. The part carries AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified to support design flexibility, supply chain alternatives, and packaging options while maintaining electrical and mechanical compatibility.

Substiute Parts

B0530WSQ-7-F

Diodes IncorporatedIn Stock: 13006B0530WSQ-7-F Datasheet

Current PartRFQ

B0530WS-7-F

Diodes IncorporatedIn Stock: 30302B0530WS-7-F Datasheet

Parametric EquivalentRFQ

B0530WSQ-13-F

Diodes IncorporatedIn Stock: 12920B0530WSQ-13-F Datasheet

Parametric EquivalentRFQ

BAT5403WE6327HTSA1

Infineon TechnologiesIn Stock: 19048BAT5403WE6327HTSA1 Datasheet

MFR RecommendedRFQ

RB551V-30-AU_R1_000A1

Panjit International Inc.In Stock: 6647RB551V-30-AU_R1_000A1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B0530WSQ-7-F is determined by matching the following critical electrical and mechanical parameters:

Electrical Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 30V
• Current - Average Rectified (Io): 500mA
• Technology: Schottky
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Package / Case: SOD-323

Mechanical Matching Criteria:

• Mounting Type: Surface Mount
• Supplier Device Package: SOD-323

Compliance Matching Criteria:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical specifications and packaging) and Manufacturer Recommended Alternatives (equivalent function with allowable parameter variations within the SOD-323 form factor).

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

The B0530WS-7-F and B0530WSQ-13-F are parametric equivalents of the B0530WSQ-7-F, offering identical electrical specifications across all critical parameters including 30V reverse voltage, 500mA average rectified current, 450mV forward voltage, and fast recovery speed classification. Both parts are manufactured by Diodes Incorporated and maintain ROHS3 compliance and MSL 1 rating. The primary distinction is packaging format: B0530WS-7-F is supplied in Cut Tape (CT) & Digi-Reel® format, while B0530WSQ-13-F is supplied in Tape & Reel (TR) format. Both B0530WSQ-13-F and the main part carry automotive grade designation and AEC-Q101 qualification. Selection between these three parts depends on procurement and assembly requirements rather than electrical performance.

Manufacturer Recommended Alternatives:

The BAT5403WE6327HTSA1 (Infineon Technologies) and RB551V-30-AU_R1_000A1 (Panjit International Inc.) are manufacturer-recommended alternatives that maintain the 30V reverse voltage rating and SOD-323 package form factor but exhibit parameter variations.

The BAT5403WE6327HTSA1 is rated for 200mA average rectified current (versus 500mA for the main part) and operates with small signal speed classification. This part is suitable for applications requiring lower current capacity. The forward voltage specification of 800mV @ 100mA differs from the main part's 450mV @ 500mA measurement point, reflecting the lower current rating. Reverse leakage is significantly lower at 2µA @ 25V, and junction capacitance is reduced to 10pF @ 1V, 1MHz. This part does not carry automotive grade or AEC-Q101 qualification.

The RB551V-30-AU_R1_000A1 (Panjit International Inc.) maintains full 500mA current rating and fast recovery speed classification, matching the main part's electrical performance. Forward voltage is 490mV @ 500mA, within acceptable tolerance of the main part's 450mV specification. Reverse leakage is improved at 100µA @ 30V. This part carries automotive grade and AEC-Q101 qualification. Operating temperature range extends to -55°C minimum (versus -40°C for the main part). Package designation is SC-90, SOD-323F, representing a minor mechanical variant of the SOD-323 form factor.

Selection Criteria:

For applications requiring full 500mA capacity with automotive qualification, select B0530WS-7-F, B0530WSQ-13-F, or RB551V-30-AU_R1_000A1 based on packaging and supply availability. For applications with reduced current requirements (≤200mA), the BAT5403WE6327HTSA1 is electrically suitable but lacks automotive qualification. All parts maintain ROHS3 compliance and MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can B0530WS-7-F be used as a direct replacement for B0530WSQ-7-F?

A: Yes. B0530WS-7-F is a parametric equivalent with identical electrical specifications. The difference is packaging format: B0530WS-7-F is supplied in Cut Tape (CT) & Digi-Reel® format while B0530WSQ-7-F is supplied in Tape & Reel (TR) format. Both parts are manufactured by Diodes Incorporated and carry ROHS3 compliance. Selection depends on assembly equipment compatibility and procurement requirements.

Q: What is the difference between B0530WSQ-13-F and B0530WSQ-7-F?

A: Both parts are parametric equivalents manufactured by Diodes Incorporated with identical electrical specifications: 30V reverse voltage, 500mA current rating, 450mV forward voltage, and fast recovery speed. Both carry automotive grade and AEC-Q101 qualification. The suffix difference (13-F versus 7-F) reflects internal manufacturing or date code variations. Both are supplied in Tape & Reel (TR) packaging.

Q: Can BAT5403WE6327HTSA1 replace B0530WSQ-7-F in all applications?

A: No. The BAT5403WE6327HTSA1 is rated for 200mA average rectified current, compared to 500mA for the B0530WSQ-7-F. This part is suitable only for applications requiring ≤200mA current. Additionally, BAT5403WE6327HTSA1 does not carry automotive grade or AEC-Q101 qualification. Use this part only in non-automotive applications with reduced current requirements.

Q: Is RB551V-30-AU_R1_000A1 suitable for automotive applications?

A: Yes. RB551V-30-AU_R1_000A1 is manufactured by Panjit International Inc. and carries automotive grade designation with AEC-Q101 qualification. It maintains the 30V reverse voltage and 500mA current rating of the main part with fast recovery speed classification. The package designation SC-90, SOD-323F represents a minor mechanical variant of SOD-323. Operating temperature range extends to -55°C minimum, providing enhanced low-temperature performance.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Voltage - DC Reverse (Vr) (Max): 30V, (2) Current - Average Rectified (Io): 500mA for full-capacity substitutes, (3) Technology: Schottky, (4) Speed: Fast Recovery ≤ 500ns, > 200mA (Io), and (5) Package / Case: SOD-323. All substitute parts must maintain these specifications to ensure functional equivalence.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (B0530WS-7-F, B0530WSQ-13-F, BAT5403WE6327HTSA1, and RB551V-30-AU_R1_000A1) are ROHS3 compliant with Moisture Sensitivity Level (MSL) 1 (Unlimited). All parts are REACH Unaffected.

Q: What is the difference between SC-76 and SC-90 package designations?

A: Both SC-76 and SC-90 are mechanical variants of the SOD-323 surface mount package. The primary difference is the physical lead frame geometry. SC-76 is the standard SOD-323 designation used by Diodes Incorporated and Infineon Technologies. SC-90 is the SOD-323F variant used by Panjit International Inc. Both packages are mechanically compatible with standard SOD-323 PCB footprints, though verification with specific assembly equipment is recommended.

Q: Can I use B0530WSQ-7-F in applications rated for lower current than 500mA?

A: Yes. The B0530WSQ-7-F is rated for maximum 500mA average rectified current. It can be used in applications requiring lower current without derating. However, for applications with significantly reduced current requirements (≤200mA), the BAT5403WE6327HTSA1 may offer improved performance characteristics including lower reverse leakage (2µA versus 500µA) and reduced capacitance (10pF versus 58pF).

Q: What is the significance of the "Fast Recovery" speed classification?

A: Fast Recovery ≤ 500ns, > 200mA (Io) indicates that the diode exhibits reverse recovery time of 500 nanoseconds or less when switching at currents greater than 200mA. This classification is suitable for high-frequency switching applications and power conversion circuits. The BAT5403WE6327HTSA1 uses "Small Signal ≤ 200mA (Io), Any Speed" classification, indicating it is optimized for lower-current applications without specific reverse recovery time guarantees.