SS34 R6G Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS34 R6G 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 surface mount DO-214AB (SMC) package. This component is classified as discontinued at DiGi Electronics, necessitating identification of equivalent alternatives for ongoing production and maintenance applications. The part operates across a junction temperature range of -55°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SS34 R6G

Taiwan Semiconductor CorporationIn Stock: 750SS34 R6G Datasheet

Current PartRFQ

SS34H

Taiwan Semiconductor CorporationIn Stock: 749SS34H Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS34 R6G is determined by electrical and mechanical parameter equivalence within the Schottky diode rectifier category. The critical parameters governing substitution are:

• Voltage Rating: 40 V DC reverse voltage maximum
• Current Rating: 3 A average rectified current
• Forward Voltage Drop: 500 mV maximum at 3 A
• Recovery Speed: Fast recovery ≤ 500ns for currents > 200mA
• Reverse Leakage: 500 µA at 40 V
• Package Type: DO-214AB (SMC) surface mount configuration
• Temperature Range: -55°C to 125°C junction operating range
• Compliance: ROHS3 compliance and MSL 1 rating

Parts meeting all these electrical and mechanical specifications are classified as parametric equivalents and direct substitutes. Packaging format variations (tape & reel versus bulk) do not affect electrical substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

The SS34H is a direct parametric equivalent to the SS34 R6G and serves as the primary substitute for discontinued applications. Both parts are manufactured by Taiwan Semiconductor Corporation and exhibit identical electrical characteristics across all specified parameters.

The SS34H maintains active product status, ensuring continued availability and supply chain reliability. The part carries AEC-Q101 automotive qualification, indicating enhanced quality and reliability screening beyond standard commercial-grade components. This qualification provides additional assurance for applications requiring automotive-grade reliability standards.

Both parts comply with ROHS3 regulations and carry REACH unaffected status, meeting current environmental and regulatory requirements. The MSL 1 rating indicates unlimited shelf life under standard storage conditions, eliminating moisture-related handling constraints.

The packaging difference between the SS34 R6G (unspecified packaging format) and SS34H (tape & reel format) does not affect electrical substitution. Tape & reel packaging is standard for automated assembly processes and provides equivalent component performance.

Frequently Asked Questions (FAQ)

Q: Can the SS34H directly replace the SS34 R6G in existing designs?

A: Yes. The SS34H is a parametric equivalent with identical electrical specifications, including voltage rating, current capacity, forward voltage drop, recovery speed, and reverse leakage characteristics. Both parts use the DO-214AB (SMC) surface mount package and operate across the same temperature range.

Q: What is the difference between SS34 R6G and SS34H?

A: The primary differences are product status and packaging format. The SS34 R6G is discontinued at DiGi Electronics, while the SS34H maintains active status. The SS34H is supplied in tape & reel format, which is standard for high-volume automated assembly. All electrical and thermal characteristics are identical.

Q: Does the tape & reel packaging of SS34H affect circuit performance?

A: No. Tape & reel packaging is a supply format that does not alter component electrical performance, thermal characteristics, or reliability. The component itself remains identical to bulk packaging formats.

Q: Are there any compliance or certification differences between these parts?

A: The SS34H carries AEC-Q101 automotive qualification, indicating enhanced quality screening. Both parts meet ROHS3 compliance and REACH unaffected status. The SS34H's automotive qualification provides additional assurance for applications requiring higher reliability standards.

Q: What is the inventory status for these parts?

A: The SS34 R6G has 727 pieces in stock but is discontinued. The SS34H has 673 pieces in stock and maintains active product status, ensuring continued availability.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Both parts use the DO-214AB (SMC) surface mount package with identical pin configuration and footprint. They are fully interchangeable in PCB design and assembly processes.

Q: What applications are these Schottky diodes suitable for?

A: These 40 V, 3 A Schottky rectifiers are used in power supply circuits, DC-DC converters, and rectification applications where low forward voltage drop and fast recovery characteristics are required. The fast recovery speed (≤ 500ns) makes them suitable for high-frequency switching applications.