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

Part Overview

The SA8.0C-E3/73 is a Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for general-purpose transient protection applications. This component features an 8V reverse standoff voltage with a 15V maximum clamping voltage and 33.3A peak pulse current capability in a through-hole DO-204AC (DO-15) axial package. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

SA8.0C-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 1128SA8.0C-E3/73 Datasheet

Current PartRFQ

SA8.0CA-E3/73

Vishay General Semiconductor - Diodes DivisionIn Stock: 32436SA8.0CA-E3/73 Datasheet

DirectRFQ

SA8.0CA

Taiwan Semiconductor CorporationIn Stock: 13804SA8.0CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SA8.0C-E3/73 is determined by the following critical parameters:

• Reverse standoff voltage: 8V (exact match required)
• Breakdown voltage minimum: 8.89V (exact match required)
• Package/case: DO-204AC (DO-15) axial through-hole (exact match required)
• Bidirectional channels: 1 (exact match required)
• Type: Zener TVS diode (exact match required)

Acceptable variations within substitute parts include clamping voltage (13.6V to 15V range), peak pulse current (33.3A to 38A range), and manufacturer source, provided all critical parameters remain identical. Product status transition from obsolete to active is a key advantage of substitution.

Parameter Comparison

Engineering Selection Recommendations

SA8.0CA-E3/73 (Vishay General Semiconductor - Diodes Division) is the primary direct substitute. This part maintains identical electrical specifications for reverse standoff and breakdown voltages while offering improved clamping performance (13.6V versus 15V) and higher peak pulse current capability (36.8A versus 33.3A). The part is currently in active production status with substantial inventory availability (32,400 pieces), ensuring supply chain continuity. ROHS3 compliance and identical operating temperature range confirm full compatibility.

SA8.0CA (Taiwan Semiconductor Corporation) serves as a secondary manufacturer alternative. This part provides equivalent electrical performance with marginally higher peak pulse current (38A) and maintains all critical mechanical and thermal specifications. Active product status and ROHS3 compliance support its use as a substitute. Packaging is supplied in Tape & Reel format, which may require consideration for assembly process compatibility.

Both substitute parts satisfy all mandatory substitution criteria and provide enhanced availability compared to the obsolete main part number.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts share identical reverse standoff voltage (8V), breakdown voltage (8.89V), and DO-204AC through-hole package configuration. The SA8.0CA-E3/73 offers lower clamping voltage (13.6V) and higher peak pulse current (36.8A), representing improved performance characteristics within the same functional category.

Q: What is the difference between SA8.0CA-E3/73 and SA8.0CA?

A: Both parts are electrically equivalent with identical voltage and current ratings. The primary difference is manufacturer source: SA8.0CA-E3/73 is manufactured by Vishay, while SA8.0CA is manufactured by Taiwan Semiconductor Corporation. SA8.0CA is supplied in Tape & Reel packaging, whereas SA8.0CA-E3/73 uses standard packaging. Both maintain ROHS3 compliance and active product status.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist for the identified substitutes. All parts maintain identical reverse standoff voltage, breakdown voltage, package type (DO-204AC axial through-hole), and operating temperature range (-55°C to 175°C). Mechanical and electrical interfaces are fully compatible.

Q: Why is the clamping voltage lower in the substitute parts?

A: The SA8.0CA variants feature 13.6V clamping voltage compared to 15V in the original part. This represents improved transient suppression performance, as lower clamping voltage provides more effective voltage limiting during transient events while maintaining the same 8V standoff voltage threshold.

Q: What packaging format should I specify for new designs?

A: For new production designs, specify SA8.0CA-E3/73 (Vishay) for standard packaging or SA8.0CA (Taiwan Semiconductor) for Tape & Reel format. Both are active products with confirmed inventory availability and full compliance certifications.