SA8.0A-E3/73 Equivalent & Substitute Parts

Part Overview

The SA8.0A-E3/73 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This through-hole component operates in the 8V reverse standoff voltage class and is designed for general-purpose transient protection applications. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance within the 8V to 8.5V standoff voltage range and compatible through-hole packaging.

Substiute Parts

SA8.0A-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 32179SA8.0A-E3/73 Datasheet

Current PartRFQ

P6KE10A

Fairchild SemiconductorIn Stock: 5025P6KE10A Datasheet

MFR RecommendedRFQ

SA8.0A

Taiwan Semiconductor CorporationIn Stock: 300339SA8.0A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA8.0A-E3/73 are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Reverse standoff voltage within 8V to 8.5V range
• Breakdown voltage minimum between 8.89V and 9.5V
• Clamping voltage maximum between 13.6V and 14.5V
• Peak pulse current rating of 36.8A or higher
• Peak pulse power rating of 500W or higher
• Through-hole axial package (DO-204AC / DO-15)
• Unidirectional zener diode configuration
• Active product status

Identified Substitutes:

1. SA8.0A (Taiwan Semiconductor Corporation) - Direct electrical equivalent with identical standoff and breakdown voltages, matching clamping voltage, and comparable peak pulse specifications. Packaging format differs (Tape & Reel vs. bulk).

2. P6KE10A (Fairchild Semiconductor) - Compatible substitute with 8.5V standoff voltage, slightly elevated clamping voltage (14.5V), and higher peak pulse current (43A). Operates within acceptable parameter variance for general-purpose transient protection.

Parameter Comparison

Engineering Selection Recommendations

SA8.0A (Taiwan Semiconductor Corporation): This part is the primary direct equivalent to the SA8.0A-E3/73. Electrical parameters are identical across all critical specifications: standoff voltage, breakdown voltage, clamping voltage, and peak pulse power. The only distinction is packaging format (Tape & Reel versus bulk). Both parts maintain RoHS3 compliance and unlimited moisture sensitivity rating. Selection of SA8.0A is appropriate for applications requiring identical electrical performance with alternative supply chain sourcing.

P6KE10A (Fairchild Semiconductor): This part functions as a compatible substitute with measurable parameter differences. The 8.5V standoff voltage represents a 0.5V increase over the main part, and the 14.5V clamping voltage is 0.9V higher. Peak pulse current capability is elevated to 43A (6.2A above the main part specification). These differences remain within acceptable tolerance for general-purpose transient protection circuits. The minimum operating temperature is -50°C versus -55°C for the main part. P6KE10A is suitable for applications where slightly higher voltage clamping and current handling are acceptable or beneficial.

Frequently Asked Questions (FAQ)

Q: Can SA8.0A be used as a direct replacement for SA8.0A-E3/73?

A: Yes. The SA8.0A provides identical electrical performance across all critical parameters: 8V reverse standoff voltage, 8.89V minimum breakdown voltage, 13.6V maximum clamping voltage, and 500W peak pulse power. The difference in packaging format (Tape & Reel versus bulk) does not affect electrical compatibility.

Q: What are the key differences between SA8.0A-E3/73 and P6KE10A?

A: The P6KE10A operates at a 0.5V higher standoff voltage (8.5V versus 8V) and provides 0.9V higher clamping voltage (14.5V versus 13.6V). Peak pulse current is 43A compared to 36.8A. The minimum operating temperature is -50°C versus -55°C. All three parts use identical DO-204AC (DO-15) through-hole packaging.

Q: Are all substitute parts RoHS3 compliant?

A: The SA8.0A-E3/73 and SA8.0A are explicitly RoHS3 compliant. RoHS compliance status for P6KE10A is not provided in the available specifications.

Q: Can P6KE10A be used in circuits designed for SA8.0A-E3/73?

A: P6KE10A is compatible for general-purpose transient protection applications. The higher clamping voltage and peak pulse current provide enhanced protection margins. Verify that the 0.5V higher standoff voltage and 0.9V higher clamping voltage do not conflict with specific circuit voltage thresholds or protection requirements.

Q: Are all parts available in the same packaging?

A: All three parts use DO-204AC (DO-15) axial through-hole packaging. SA8.0A-E3/73 is supplied in bulk; SA8.0A is supplied in Tape & Reel format; P6KE10A is supplied in bulk. Physical dimensions and pin configuration are identical.