Equivalent & Substitute Parts for SA7.0A-E3/73

Part Overview

The SA7.0A-E3/73 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component operates as a Zener-type TVS device with a 7V reverse standoff voltage and 12V maximum clamping voltage, designed for general-purpose transient protection applications. The device is housed in a DO-204AC (DO-15) axial through-hole package and is currently in active production status with ROHS3 compliance. Substitute parts are identified when equivalent electrical performance parameters and mechanical compatibility are maintained within the specified operating ranges.

Substiute Parts

SA7.0A-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 32279SA7.0A-E3/73 Datasheet

Current PartRFQ

LCE7.0A

Littelfuse Inc.In Stock: 1461LCE7.0A Datasheet

MFR RecommendedRFQ

P6KE8.2A

Taiwan Semiconductor CorporationIn Stock: 9341P6KE8.2A Datasheet

MFR RecommendedRFQ

SA7.0A

Taiwan Semiconductor CorporationIn Stock: 300296SA7.0A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA7.0A-E3/73 are qualified based on the following electrical and mechanical criteria:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 7V
• Voltage - Breakdown (Min): 7.78V minimum
• Voltage - Clamping (Max) @ Ipp: 12V maximum
• Unidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C to 175°C (TJ)
• RoHS Status: ROHS3 Compliant
• Mounting Type: Through Hole

Acceptable Variation Parameters:

• Current - Peak Pulse (10/1000µs): Equal to or greater than 41.7A
• Power - Peak Pulse: Equal to or greater than 500W
• Package / Case: DO-204AC (DO-15) or equivalent axial through-hole packages

Substitutes are grouped by their ability to maintain the same voltage protection characteristics while meeting or exceeding current and power handling specifications. Package compatibility is verified for direct board-level replacement.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active production status and ROHS3 compliance, meeting the regulatory and supply chain requirements of the SA7.0A-E3/73.

SA7.0A (Taiwan Semiconductor Corporation): Direct electrical equivalent with identical voltage parameters and 500W power rating. Supplied in Tape & Reel packaging with higher inventory availability (300,200 pcs). Peak pulse current of 43A exceeds the main part specification of 41.7A. Package compatibility is identical (DO-204AC, DO-15).

P6KE8.2A (Taiwan Semiconductor Corporation): Meets voltage protection requirements with clamping voltage of 12.1V and peak pulse current of 52A. Power rating of 600W exceeds the main part specification. Package compatibility is identical (DO-204AC, DO-15). Reverse standoff voltage of 7.02V remains within acceptable tolerance.

LCE7.0A (Littelfuse Inc.): Exact voltage parameter match with 7V reverse standoff and 12V clamping voltage. Provides enhanced current handling at 100A and 1500W power rating. Package differs as DO-201AA (DO-27), requiring board layout verification for physical fit. Through-hole mounting type is maintained.

Frequently Asked Questions (FAQ)

Q: Can the LCE7.0A be used as a direct replacement for the SA7.0A-E3/73?

A: The LCE7.0A provides identical electrical protection characteristics with superior current and power handling. However, the package differs (DO-201AA vs. DO-204AC). Physical board layout compatibility must be verified before substitution, as the DO-27 package has different lead spacing and dimensions compared to the DO-15 package.

Q: What is the primary difference between the SA7.0A and SA7.0A-E3/73?

A: Both parts share identical electrical specifications and package type (DO-204AC, DO-15). The primary difference is packaging format: SA7.0A-E3/73 is supplied in cut tape, while SA7.0A is supplied in Tape & Reel format. Electrical performance and board-level compatibility are equivalent.

Q: Is the P6KE8.2A suitable for applications requiring the exact 7V standoff voltage?

A: The P6KE8.2A operates at 7.02V reverse standoff voltage, which is within 0.02V of the SA7.0A-E3/73 specification. This minor variance remains within typical component tolerance ranges for TVS diode applications. The clamping voltage of 12.1V is within acceptable limits for 12V protection circuits.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts (LCE7.0A, P6KE8.2A, and SA7.0A) carry ROHS3 compliance certification, matching the regulatory status of the SA7.0A-E3/73.

Q: Which substitute offers the best current handling capability?

A: The LCE7.0A provides the highest peak pulse current rating at 100A with 1500W power dissipation. This part is suitable for applications requiring enhanced transient protection margin. Package compatibility must be verified for board-level implementation.

Q: Can these parts be used interchangeably in existing designs?

A: SA7.0A and P6KE8.2A are direct package-compatible replacements (DO-204AC, DO-15) and can be substituted without board layout modifications. The LCE7.0A requires physical layout verification due to its different package type (DO-201AA, DO-27). All parts maintain identical through-hole mounting methodology and operating temperature ranges.