SA8.0CHE3/54 Equivalent & Substitute Parts

Part Overview

The SA8.0CHE3/54 is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This bidirectional Zener diode is designed for transient voltage protection in through-hole applications using the DO-204AC (DO-15) axial package. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

SA8.0CHE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 884SA8.0CHE3/54 Datasheet

Current PartRFQ

SA8.0CAHE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1102SA8.0CAHE3/54 Datasheet

DirectRFQ

SA8.0CA

Taiwan Semiconductor CorporationIn Stock: 13804SA8.0CA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SA8.0CHE3/54 is determined by the following critical parameters:

• Reverse Standoff Voltage: 8V (nominal)
• Breakdown Voltage (Min): 8.89V
• Package Type: DO-204AC (DO-15) axial through-hole
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C ~ 175°C
• RoHS Compliance: ROHS3 Compliant

Substitute parts must maintain identical reverse standoff voltage, breakdown voltage specifications, and package compatibility. Variations in clamping voltage and peak pulse current are acceptable within the same electrical class, provided the part meets the same environmental and compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

SA8.0CAHE3/54 is the direct substitute for SA8.0CHE3/54. Both parts are manufactured by Vishay General Semiconductor, maintain identical electrical specifications for reverse standoff and breakdown voltages, and share the same DO-204AC package. SA8.0CAHE3/54 is currently in active production status with higher inventory availability (1040 pcs vs. 819 pcs). Both parts carry AEC-Q101 automotive qualification and ROHS3 compliance.

SA8.0CA is the manufacturer-recommended alternative, produced by Taiwan Semiconductor Corporation. This part meets the same reverse standoff voltage (8V) and breakdown voltage (8.89V) specifications. The clamping voltage is reduced to 13.6V with increased peak pulse current (38A), providing enhanced transient suppression performance. SA8.0CA is ROHS3 compliant and offers significantly higher inventory availability (13790 pcs). However, this part is classified as General Purpose grade rather than Automotive grade and does not carry AEC-Q101 qualification.

For automotive applications requiring AEC-Q101 qualification, SA8.0CAHE3/54 is the appropriate selection. For general-purpose applications where automotive qualification is not required, SA8.0CA provides superior availability and performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can SA8.0CAHE3/54 be used as a direct replacement for SA8.0CHE3/54?

A: Yes. Both parts share identical reverse standoff voltage (8V), breakdown voltage (8.89V), and DO-204AC package specifications. SA8.0CAHE3/54 is the direct Vishay equivalent with active production status.

Q: What is the difference between SA8.0CAHE3/54 and SA8.0CA?

A: Both parts maintain the same 8V reverse standoff and 8.89V breakdown voltages. SA8.0CAHE3/54 is manufactured by Vishay with AEC-Q101 automotive qualification, while SA8.0CA is manufactured by Taiwan Semiconductor Corporation for general-purpose applications. SA8.0CA offers higher peak pulse current (38A vs. 36.8A) and lower clamping voltage (13.6V).

Q: Is the SA8.0CA suitable for automotive applications?

A: SA8.0CA is classified as General Purpose grade and does not carry AEC-Q101 automotive qualification. For automotive applications, SA8.0CAHE3/54 is the recommended selection.

Q: Are all substitute parts compatible with the DO-204AC package?

A: Yes. All listed substitute parts use the DO-204AC (DO-15) axial through-hole package, ensuring mechanical and electrical compatibility with existing PCB designs.

Q: What is the significance of the clamping voltage difference between SA8.0CHE3/54 (15V) and the substitutes (13.6V)?

A: The clamping voltage represents the maximum voltage across the diode at peak pulse current. The lower clamping voltage in SA8.0CAHE3/54 and SA8.0CA indicates more aggressive transient suppression, providing enhanced protection at the cost of slightly higher power dissipation during transient events.