SA9.0A-E3/73 Equivalent & Substitute Parts

Part Overview

The SA9.0A-E3/73 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component belongs to the TransZorb® series and is designed for general-purpose transient voltage protection applications. The device features a 9V reverse standoff voltage with a 15.4V maximum clamping voltage and 32.5A 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 based on matching electrical performance parameters and identical mechanical packaging specifications.

Substiute Parts

SA9.0A-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 32331SA9.0A-E3/73 Datasheet

Current PartRFQ

SA9.0A

Taiwan Semiconductor CorporationIn Stock: 300450SA9.0A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SA9.0A-E3/73 are identified based on the following critical electrical and mechanical parameters:

• Voltage - Reverse Standoff: 9V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 15.4V (exact match required)
• Package / Case: DO-204AC, DO-15, Axial (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 175°C (exact match required)
• RoHS Status: ROHS3 Compliant (compliance requirement)

The SA9.0A manufactured by Taiwan Semiconductor Corporation qualifies as a direct substitute based on matching all critical electrical specifications and identical mechanical packaging. Peak pulse current capability may vary within acceptable design margins while maintaining the same voltage protection characteristics and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

Both the SA9.0A-E3/73 and SA9.0A meet identical electrical protection specifications for 9V standoff voltage applications with 15.4V clamping characteristics. Selection between these components is based on availability and supply chain considerations rather than performance differentiation. Both devices maintain Active product status with full RoHS3 compliance and REACH unaffected certification, ensuring regulatory compliance for industrial and commercial applications. The identical operating temperature range (-55°C to 175°C) and package specifications (DO-204AC through-hole axial) enable direct substitution in existing circuit designs without layout or thermal management modifications.

Frequently Asked Questions (FAQ)

Q: Can SA9.0A replace SA9.0A-E3/73 in existing designs?

A: Yes. The SA9.0A is a direct substitute. Both components share identical voltage specifications (9V standoff, 15.4V clamping), package type (DO-204AC axial through-hole), and operating temperature range (-55°C to 175°C). The peak pulse current difference (34A vs 32.5A) represents a performance enhancement with no compatibility concerns.

Q: Are there package compatibility considerations?

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

Q: Do both parts meet the same compliance standards?

A: Yes. Both SA9.0A-E3/73 and SA9.0A are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Regulatory and environmental compliance is equivalent.

Q: What is the primary difference between these parts?

A: The manufacturer differs (Vishay vs Taiwan Semiconductor Corporation), and peak pulse current capability varies slightly (32.5A vs 34A). Electrical protection performance and physical specifications remain identical.

Q: Can these parts be used interchangeably in production?

A: Yes. Matching voltage specifications, clamping characteristics, package type, and compliance certifications enable direct interchangeability. Supply chain flexibility is the primary benefit of maintaining both options.