B0520WS-7-G Schottky Diode Equivalent & Substitute Parts

Part Overview

The B0520WS-7-G is a Schottky rectifier diode manufactured by Diodes Incorporated, rated for 20V DC reverse voltage with 500mA average rectified current in a surface mount SOD-323 package. This component is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement continuity. The part exhibits fast recovery characteristics suitable for high-frequency switching applications and meets ROHS3 compliance requirements.

Substiute Parts

B0520WS-7-G

Diodes IncorporatedIn Stock: 3186B0520WS-7-G Datasheet

Current PartRFQ

B0520WS-7-F

Diodes IncorporatedIn Stock: 340285B0520WS-7-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the B0520WS-7-G is determined by electrical and mechanical parameter equivalence across the following criteria:

Electrical Parameters (Critical for Functional Compatibility):

• Voltage - DC Reverse (Vr) (Max): 20V
• Current - Average Rectified (Io): 500mA
• Voltage - Forward (Vf) (Max) @ If: 430 mV @ 500 mA
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 250 µA @ 20 V
• Capacitance @ Vr, F: 58pF @ 0V, 1MHz

Mechanical Parameters (Critical for Physical Compatibility):

• Package / Case: SC-76, SOD-323
• Mounting Type: Surface Mount
• Operating Temperature - Junction: -55°C to 125°C

Compliance Parameters:

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

Substitute parts must match all electrical specifications, maintain identical package geometry, and satisfy the same compliance certifications to ensure direct replacement without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

The B0520WS-7-F is a direct parametric equivalent to the B0520WS-7-G. All electrical characteristics, mechanical dimensions, and compliance certifications are identical. The primary distinction is product status: B0520WS-7-G is obsolete while B0520WS-7-F is active and maintains high inventory availability (340,195 units in stock versus 3,100 units for the obsolete part).

For new designs and ongoing production, B0520WS-7-F is the appropriate selection. The substitute part satisfies ROHS3 compliance, maintains unlimited moisture sensitivity classification (MSL 1), and is unaffected by REACH regulations. Packaging is available in Cut Tape (CT) and Digi-Reel® formats, supporting both prototype and high-volume manufacturing workflows.

No circuit redesign, board layout modification, or thermal management changes are required when transitioning from B0520WS-7-G to B0520WS-7-F.

Frequently Asked Questions (FAQ)

Q: Can B0520WS-7-F be used as a direct replacement for B0520WS-7-G in existing designs?

A: Yes. B0520WS-7-F is a direct parametric equivalent with identical electrical specifications, forward voltage characteristics, reverse leakage current, capacitance, and operating temperature range. The SOD-323 package geometry and surface mount footprint are identical, requiring no PCB layout changes.

Q: What is the primary reason for substitution?

A: B0520WS-7-G is classified as obsolete. B0520WS-7-F is the active equivalent from the same manufacturer with superior inventory availability and long-term supply assurance.

Q: Are there packaging differences between the two parts?

A: Both parts use the SC-76, SOD-323 surface mount package. B0520WS-7-F is available in Cut Tape (CT) and Digi-Reel® packaging options, while B0520WS-7-G packaging format is not specified in the available data.

Q: Do compliance certifications differ between the parts?

A: No. Both parts are ROHS3 compliant, maintain MSL 1 (Unlimited) moisture sensitivity classification, and are REACH unaffected. Regulatory requirements are satisfied identically by both components.

Q: What are the critical electrical parameters that define substitution eligibility?

A: Voltage rating (20V DC reverse), current rating (500mA average rectified), forward voltage drop (430 mV @ 500 mA), reverse leakage current (250 µA @ 20 V), and capacitance (58pF @ 0V, 1MHz) must match exactly. All parameters are identical between B0520WS-7-G and B0520WS-7-F.

Q: Is thermal performance affected by the substitution?

A: No. Both parts share identical operating temperature range (-55°C to 125°C junction temperature) and identical thermal characteristics. Thermal design calculations and heat dissipation requirements remain unchanged.