SA8.5A-E3/54 Equivalent & Substitute Parts

Part Overview

The SA8.5A-E3/54 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates as a Zener-type TVS device in the TransZorb® series, designed for general-purpose transient voltage protection applications. The part is currently active in production and maintains full RoHS3 compliance with unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters and mechanical compatibility within the DO-204AC (DO-15) axial package format.

Substiute Parts

SA8.5A-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 967SA8.5A-E3/54 Datasheet

Current PartRFQ

SA8.5A

Taiwan Semiconductor CorporationIn Stock: 8461SA8.5A Datasheet

DirectRFQ

P6KE10A

Fairchild SemiconductorIn Stock: 5025P6KE10A Datasheet

MFR RecommendedRFQ

P6KE10A-TP

Micro Commercial CoIn Stock: 4921P6KE10A-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA8.5A-E3/54 are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 8.5V ± tolerance
• Voltage - Clamping (Max) @ Ipp: 14.4V to 14.5V range
• Current - Peak Pulse (10/1000µs): minimum 34.7A
• Power - Peak Pulse: minimum 500W
• Package / Case: DO-204AC or DO-15 axial configuration
• Mounting Type: Through Hole
• Product Status: Active
• Type: Zener unidirectional TVS diode

The identified substitutes meet these criteria within acceptable engineering tolerances for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts maintain active product status and are suitable for direct replacement in general-purpose transient voltage suppression circuits. The SA8.5A from Taiwan Semiconductor Corporation provides the closest electrical match with identical reverse standoff voltage and clamping voltage specifications.

The P6KE10A and P6KE10A-TP variants offer higher peak pulse current ratings (43A and 41A respectively) and increased peak pulse power (600W), providing enhanced transient suppression capability. These parts are compatible with the same DO-204AC/DO-15 axial through-hole package format.

For applications requiring RoHS3 compliance verification, the SA8.5A and P6KE10A-TP are explicitly certified. The P6KE10A-TP additionally maintains the full operating temperature range of -55 to 175°C, matching the original SA8.5A-E3/54 specification.

Frequently Asked Questions (FAQ)

Q: Can SA8.5A be used as a direct replacement for SA8.5A-E3/54?

A: Yes. Both parts share identical reverse standoff voltage (8.5V), breakdown voltage (9.44V), clamping voltage (14.4V), and peak pulse current (36A vs 34.7A). Both are RoHS3 compliant with MSL 1 rating and operate across -55 to 175°C. The SA8.5A is manufactured by Taiwan Semiconductor Corporation and maintains full electrical and mechanical compatibility.

Q: What is the difference between P6KE10A and P6KE10A-TP?

A: Both parts are functionally equivalent TVS diodes with 8.5V reverse standoff voltage and 14.5V clamping voltage. P6KE10A is manufactured by Fairchild Semiconductor in bulk packaging, while P6KE10A-TP is manufactured by Micro Commercial Co in cut tape packaging. P6KE10A-TP maintains the full -55 to 175°C operating temperature range, whereas P6KE10A operates from -50 to 175°C. Both support 41-43A peak pulse current and 600W peak pulse power.

Q: Are all substitute parts compatible with the DO-204AC package footprint?

A: Yes. All substitute parts are specified for DO-204AC, DO-15, or axial package configurations. All are through-hole mounted components with identical mechanical compatibility for PCB assembly.

Q: Which substitute part offers the highest transient suppression capability?

A: The P6KE10A provides the highest peak pulse current rating at 43A with 600W peak pulse power, followed by P6KE10A-TP at 41A with 600W. Both exceed the original SA8.5A-E3/54 specification of 34.7A and 500W, offering enhanced protection margins.

Q: Do all substitute parts meet RoHS3 compliance?

A: SA8.5A and P6KE10A-TP are explicitly RoHS3 compliant. P6KE10A compliance status is not specified in the provided data. Verify RoHS3 certification with the manufacturer if compliance is a design requirement.