SS34 V7G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS34 V7G is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 40 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs. The part operates across a junction temperature range of -55°C to 125°C and complies with ROHS3 and REACH standards.

Substiute Parts

SS34 V7G

Taiwan Semiconductor CorporationIn Stock: 1049SS34 V7G Datasheet

Current PartRFQ

SS34

MDDIn Stock: 605112SS34 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS34 V7G is determined by equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 500 mV @ 3 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 500 µA @ 40 V
• Operating Temperature - Junction: -55°C to 125°C
• Technology: Schottky

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount
• Package / Case: DO-214AB or compatible surface mount package

The SS34 manufactured by MDD meets all electrical specifications and operates within the same temperature range. Although packaged in DO-214AC (SMA) rather than DO-214AB (SMC), both are surface mount packages with compatible footprint characteristics for this diode category. The substitute part maintains identical voltage, current, and thermal performance parameters.

Parameter Comparison

Engineering Selection Recommendations

The SS34 manufactured by MDD is a direct functional equivalent to the SS34 V7G. Both components satisfy identical electrical specifications for reverse voltage, forward current, forward voltage drop, and reverse leakage current. Both operate across the full -55°C to 125°C junction temperature range and comply with ROHS3 and REACH regulatory requirements.

The primary distinction is packaging: the original part uses DO-214AB (SMC), while the substitute uses DO-214AC (SMA). Both are surface mount packages within the DO-214 family. PCB layout verification is required to confirm footprint compatibility with the specific application design.

The MDD SS34 is currently in active production status with substantial inventory availability (605,100 pieces), providing supply chain continuity for applications previously dependent on the discontinued Taiwan Semiconductor Corporation variant.

Frequently Asked Questions (FAQ)

Q: Can the SS34 (MDD) directly replace the SS34 V7G in all applications?

A: The electrical specifications are identical across all critical parameters: 40 V reverse voltage, 3 A average rectified current, 500 mV forward voltage drop at 3 A, and fast recovery switching characteristics. Substitution is valid provided the PCB footprint accommodates the DO-214AC (SMA) package. Physical layout verification is necessary.

Q: What is the difference between DO-214AB (SMC) and DO-214AC (SMA) packages?

A: Both are surface mount Schottky diode packages within the DO-214 family. DO-214AB (SMC) and DO-214AC (SMA) have different physical dimensions and land patterns. Verify that your PCB design can accommodate the SMA footprint before implementing the substitution.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both components operate across -55°C to 125°C junction temperature range and maintain identical electrical characteristics: 40 V maximum reverse voltage, 3 A average rectified current, 500 mV maximum forward voltage at 3 A, and 500 µA reverse leakage current at 40 V.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SS34 V7G and SS34 (MDD) are ROHS3 compliant and REACH unaffected. Both carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Q: Why is the original part discontinued?

A: The SS34 V7G is listed as discontinued at DiGi Electronics. The MDD SS34 provides functional continuity with active production status and established supply availability.

Q: What should be verified before implementing this substitution?

A: Confirm PCB footprint compatibility with the DO-214AC (SMA) package. Verify that the application circuit design does not depend on specific package-related thermal or mechanical characteristics unique to the DO-214AB (SMC) form factor.