SA8.0A-E3/54 Equivalent & Substitute Parts

Part Overview

The SA8.0A-E3/54 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is part of the TransZorb® series and is designed for general-purpose transient voltage protection applications. The device features an 8V reverse standoff voltage with a 13.6V maximum clamping voltage and 36.8A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The product maintains Active status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design standardization across manufacturing environments.

Substiute Parts

SA8.0A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 769SA8.0A-E3/54 Datasheet

Current PartRFQ

SA8.0A

Taiwan Semiconductor CorporationIn Stock: 300339SA8.0A Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SA8.0A-E3/54 is determined by strict equivalence across the following critical parameters:

Voltage Parameters: Reverse standoff voltage of 8V (typical), breakdown voltage minimum of 8.89V, and maximum clamping voltage of 13.6V must be maintained to ensure proper circuit protection without over-clamping or under-protection.

Current Rating: Peak pulse current of 36.8A (10/1000µs waveform) establishes the transient energy dissipation capability. Substitute parts must meet or exceed this specification.

Power Dissipation: Peak pulse power rating of 500W defines thermal performance during transient events.

Package Configuration: Through-hole mounting in DO-204AC (DO-15) axial package is required for mechanical and electrical compatibility with existing PCB designs.

Device Type: Unidirectional Zener TVS diode topology with single channel configuration.

Compliance & Status: Active product status with RoHS3 compliance and MSL Level 1 rating ensures regulatory alignment and supply chain availability.

The substitute part SA8.0A meets all critical parameter requirements and maintains identical electrical specifications and package configuration.

Parameter Comparison

Engineering Selection Recommendations

Both the SA8.0A-E3/54 (Vishay) and SA8.0A (Taiwan Semiconductor) are qualified for direct substitution based on electrical parameter equivalence and regulatory compliance alignment.

Vishay SA8.0A-E3/54: Primary specification reference. Maintains Active product status with established supply availability (701 pcs in stock). Full RoHS3 compliance and MSL Level 1 rating support long-term reliability in standard manufacturing environments.

Taiwan Semiconductor SA8.0A: Direct substitute with identical voltage and thermal specifications. Peak pulse current rating of 38A exceeds the primary part requirement of 36.8A, providing additional transient margin. Active product status with substantial inventory (300,300 pcs) ensures supply continuity. Equivalent RoHS3 and MSL Level 1 certifications maintain regulatory and environmental compatibility.

Selection between these parts may be based on procurement lead time, cost structure, inventory availability, and established supplier relationships. Both parts are electrically and mechanically interchangeable within the specified application parameters.

Frequently Asked Questions (FAQ)

Q: Can SA8.0A (Taiwan Semiconductor) be used as a direct replacement for SA8.0A-E3/54 (Vishay)?

A: Yes. Both parts are electrically equivalent across all critical parameters: 8V reverse standoff voltage, 13.6V clamping voltage, 500W peak pulse power, and identical DO-204AC (DO-15) through-hole package configuration. The Taiwan Semiconductor part provides 38A peak pulse current, which exceeds the 36.8A requirement of the primary part.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts use identical DO-204AC (DO-15) axial through-hole packaging. PCB footprints, lead spacing, and mounting procedures are identical. No design modifications are required for substitution.

Q: Do both parts meet the same compliance and environmental standards?

A: Yes. Both parts maintain Active product status, RoHS3 compliance, and MSL Level 1 (Unlimited) moisture sensitivity rating. REACH status is unaffected for both parts. Regulatory and environmental requirements are equivalent.

Q: What is the difference in peak pulse current between these parts?

A: The Vishay SA8.0A-E3/54 is rated at 36.8A peak pulse current (10/1000µs), while the Taiwan Semiconductor SA8.0A is rated at 38A. The substitute part provides approximately 3% additional current capacity, which represents improved transient handling margin without affecting circuit protection characteristics.

Q: Can these parts be mixed in the same production batch or assembly?

A: Yes. Electrical equivalence and identical packaging allow both parts to be used interchangeably within the same design and manufacturing process. No circuit modifications, testing protocol changes, or design verification updates are required.

Q: What operating temperature range do both parts support?

A: Both parts operate across -55°C to 175°C junction temperature range, supporting standard industrial and automotive thermal environments without derating.