SA7.0C-E3/54 Equivalent & Substitute Parts

Part Overview

The SA7.0C-E3/54 is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This through-hole component is designed for general-purpose transient voltage suppression applications with a 7V reverse standoff voltage and 13.3V maximum clamping voltage. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs requiring similar electrical characteristics.

Substiute Parts

SA7.0C-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 811SA7.0C-E3/54 Datasheet

Current PartRFQ

SA7.0CA-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 24098SA7.0CA-E3/54 Datasheet

DirectRFQ

P6KE8.2CA

Taiwan Semiconductor CorporationIn Stock: 30432P6KE8.2CA Datasheet

MFR RecommendedRFQ

P6KE8V2CA

Taiwan Semiconductor CorporationIn Stock: 1049P6KE8V2CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SA7.0C-E3/54 is determined by the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 7V nominal
• Voltage - Breakdown (Min): 7.78V minimum
• Voltage - Clamping (Max) @ Ipp: 12V to 13.3V range
• Current - Peak Pulse (10/1000µs): 37.6A minimum
• Power - Peak Pulse: 500W minimum
• Mounting Type: Through Hole
• Package / Case: DO-204AC (DO-15), Axial configuration
• Operating Temperature Range: -55°C ~ 175°C (TJ)
• RoHS Status: ROHS3 Compliant

Substitute parts must maintain compatibility across these parameters to ensure functional equivalence in transient voltage suppression applications. The identified substitutes meet or exceed the electrical performance specifications of the original part while maintaining identical mechanical and environmental compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

SA7.0CA-E3/54 (Vishay) is the primary direct substitute. This part maintains identical electrical specifications with the exception of a slightly lower clamping voltage (12V vs. 13.3V), which remains within acceptable tolerance for the 7V standoff class. The SA7.0CA-E3/54 is active in production with superior inventory availability (24,057 pcs) compared to the obsolete SA7.0C-E3/54. Both parts share identical operating temperature range, RoHS compliance, and MSL rating.

P6KE8.2CA and P6KE8V2CA (Taiwan Semiconductor) are functionally equivalent alternatives from a different manufacturer. Both parts exceed the original specifications with higher peak pulse current (52A and 50A respectively) and increased power dissipation capability (600W vs. 500W). The clamping voltage remains within the acceptable 7V standoff class range at 12.1V. Both parts maintain ROHS3 compliance and MSL 1 rating. P6KE8.2CA specifies the full operating temperature range (-55°C ~ 175°C), while P6KE8V2CA does not provide this specification in the available data.

All substitute parts are available in the required DO-204AC (DO-15) axial through-hole package configuration and are ROHS3 compliant with unlimited moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can SA7.0CA-E3/54 be used as a direct replacement for SA7.0C-E3/54?

A: Yes. SA7.0CA-E3/54 is a direct substitute with identical reverse standoff voltage (7V), breakdown voltage (7.78V minimum), and operating temperature range (-55°C ~ 175°C). The clamping voltage is 12V versus 13.3V on the original part, representing a 9.8% reduction that remains within the acceptable tolerance for this voltage class. Both parts use identical DO-204AC (DO-15) through-hole packaging and are ROHS3 compliant.

Q: What is the difference between the Vishay and Taiwan Semiconductor substitutes?

A: The Vishay SA7.0CA-E3/54 maintains the closest electrical match to the original SA7.0C-E3/54 with identical power rating (500W) and current specification (41.7A). The Taiwan Semiconductor P6KE series (P6KE8.2CA and P6KE8V2CA) offer enhanced performance with higher peak pulse current (50-52A) and increased power dissipation (600W), providing additional margin for transient suppression. All three substitutes maintain the same reverse standoff voltage class (7V nominal) and package configuration.

Q: Are the Taiwan Semiconductor P6KE8.2CA and P6KE8V2CA interchangeable?

A: Both parts are functionally equivalent with nearly identical electrical specifications. P6KE8.2CA specifies the complete operating temperature range (-55°C ~ 175°C), while P6KE8V2CA does not provide this specification in available documentation. For applications requiring confirmed temperature range data, P6KE8.2CA is the preferred selection. Both parts are available in DO-15 packaging and are ROHS3 compliant.

Q: Does the lower clamping voltage on substitute parts affect circuit protection?

A: The substitute parts maintain clamping voltages (12V to 12.1V) within the acceptable range for 7V standoff class TVS diodes. The reduction from 13.3V to 12V represents a 9.8% decrease, which remains within standard engineering tolerance for transient voltage suppression. All substitute parts meet or exceed the original part's peak pulse current and power dissipation specifications, ensuring equivalent or superior protection performance.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All substitute parts are available in DO-204AC (DO-15) axial through-hole packaging, maintaining mechanical compatibility with the original SA7.0C-E3/54. This ensures direct board-level substitution without requiring PCB redesign or mechanical rework.

Q: What is the inventory status of these substitute parts?

A: SA7.0CA-E3/54 has 24,057 pcs in stock. P6KE8.2CA has 30,400 pcs in stock. P6KE8V2CA has 998 pcs in stock. All substitute parts are in active production status, ensuring long-term availability for ongoing system support and new designs.