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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Vishay General Semiconductor - Diodes Division SA8.0CA-E3/54

Name: SA8.0CA-E3/54
Brand: Vishay General Semiconductor - Diodes Division
SKU: SA8.0CA-E3/54
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SA8.0CA-E3/54

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: TVS Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: SA8.0CA-E3/54.pdf

Description:: TVS DIODE 8VWM 13.6VC DO204AC

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Product details

Overview

SA8.0CA-E3/54 from Vishay General Semiconductor is a bidirectional TransZORB® transient voltage suppressor (TVS) diode in DO-15 package, designed for clamping voltage transients on signal or power lines. It features 500 W peak pulse power (10/1000 μs), 8.0 V stand-off voltage (V_WM), 13.6 V maximum clamping voltage (V_C) at 25 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.

For engineers reviewing the SA8.0CA-E3/54 datasheet, SA8.0CA-E3/54 pinout, SA8.0CA-E3/54 application, or SA8.0CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-15 mechanical compatibility, 175 °C max junction temperature, low incremental surge resistance, and compliance with JESD 22-B106 soldering standards.

Technical Context

This TVS diode operates symmetrically in both directions, with breakdown voltage (V_BR) specified between 8.89 V and 9.83 V at 10 mA test current. Its clamping behavior is characterized by a maximum V_C of 13.6 V at I_PPM = 25 A under 10/1000 μs waveform, enabling robust protection of downstream ICs against ESD and inductive switching surges.

The device uses a glass-passivated chip junction and matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. With no polarity marking on the case, it supports bidirectional surge suppression without orientation constraints in PCB layout.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	8.0 V - Maximum continuous reverse operating voltage before clamping begins
V_BR (min/max)	8.89 V / 9.83 V at 10 mA - Ensures reliable breakdown onset within tight tolerance band
V_C @ I_PPM	13.6 V at 25 A - Limits transient voltage seen by protected circuit during 10/1000 μs surge
P_PPM	500 W - Sustains high-energy transients without failure under standard test waveform
I_PPM	25 A - Peak surge current capacity defines protection level for typical board-level threats
T_J max	175 °C - Enables operation in under-hood automotive or industrial environments
Package	DO-15 (DO-204AC) - Industry-standard axial leaded package with 0.242–0.258 inch body length

Pinout & Package

DO-15 (DO-204AC) molded epoxy package with matte tin-plated axial leads; no polarity marking - bidirectional operation requires no cathode/anode orientation during placement.

Pin/Terminal	Circuit Role	Design Meaning
Anode/Cathode (unmarked)	Bidirectional terminal pair	Identical electrical behavior in either direction; no functional distinction between leads

Key Features

Feature	Design Value
Glass passivated chip junction	Enables stable long-term clamping performance and reduced parameter drift over temperature and life
500 W peak pulse power (10/1000 μs)	Withstands common lightning-induced and inductive-switching transients per IEC 61000-4-5 Level 3
AEC-Q101 qualified	Validated for automotive applications including engine control units and body electronics
Low incremental surge resistance	Minimizes V_C overshoot during fast-rising transients, improving protection margin for sensitive ICs
Solder dip 275 °C max., 10 s	Compatible with standard wave soldering processes without degradation

Applications

Automotive Body Control Module	Industrial Sensor Signal Line Protection
Use Scenario: Protecting LIN bus and switch inputs in door module ECUs exposed to load dump and ESD. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across input pins to shunt transients before they reach MCU GPIO or LIN transceiver. Use Value: Maintains 8.0 V stand-off while clamping to ≤13.6 V, preserving signal integrity and preventing latch-up in 5 V logic interfaces.	Use Scenario: Safeguarding analog outputs (4–20 mA) and digital I/O of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Parallel-connected TVS suppressing inductive kickback from solenoid drivers and ESD events on sensor harnesses. Use Value: 500 W pulse rating handles repetitive 10/1000 μs surges from nearby motor contactors without derating or failure.
Consumer Appliance Motor Drive Interface	Telecom Power Supply Input Stage
Use Scenario: Clamping voltage spikes on microcontroller reset lines and relay coil flyback paths in washing machine control boards. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at point-of-entry for relay and triac drive signals. Use Value: Sub-1 ns response time limits overvoltage exposure duration, reducing stress on 3.3 V/5 V logic rails and internal ESD structures.	Use Scenario: Secondary-side overvoltage protection on DC-DC converter outputs feeding base station RF modules. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing residual transients that bypass primary-side MOVs and filter stages. Use Value: 175 °C max junction temperature supports operation in sealed, thermally constrained telecom enclosures.

Automotive Body Control Module

Industrial Sensor Signal Line Protection

Use Scenario: Protecting LIN bus and switch inputs in door module ECUs exposed to load dump and ESD.

IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across input pins to shunt transients before they reach MCU GPIO or LIN transceiver.

Use Value: Maintains 8.0 V stand-off while clamping to ≤13.6 V, preserving signal integrity and preventing latch-up in 5 V logic interfaces.

Use Scenario: Safeguarding analog outputs (4–20 mA) and digital I/O of pressure/temperature sensors in factory automation PLCs.

IC Role / Device Role / Timing Role: Parallel-connected TVS suppressing inductive kickback from solenoid drivers and ESD events on sensor harnesses.

Use Value: 500 W pulse rating handles repetitive 10/1000 μs surges from nearby motor contactors without derating or failure.

Consumer Appliance Motor Drive Interface

Telecom Power Supply Input Stage

Use Scenario: Clamping voltage spikes on microcontroller reset lines and relay coil flyback paths in washing machine control boards.

IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at point-of-entry for relay and triac drive signals.

Use Value: Sub-1 ns response time limits overvoltage exposure duration, reducing stress on 3.3 V/5 V logic rails and internal ESD structures.

Use Scenario: Secondary-side overvoltage protection on DC-DC converter outputs feeding base station RF modules.

IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing residual transients that bypass primary-side MOVs and filter stages.

Use Value: 175 °C max junction temperature supports operation in sealed, thermally constrained telecom enclosures.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ8.0CA	DO-214AA (SMB) surface-mount package; same V_WM/V_C specs but higher I_PPM (31.3 A)	Requires rework of footprint; better suited for high-density PCBs with automated assembly	Select when space-constrained layouts or reflow-only processes preclude axial-leaded components
P6KE8.2CA	Higher V_BR range (9.1–10.1 V); 600 W P_PPM; DO-15 package with identical lead form	Looser V_BR tolerance increases clamping uncertainty; suitable where tighter V_WM margin is not critical	Choose when legacy designs specify P6KE series or require slightly higher surge headroom at cost of precision

Compared with SMBJ8.0CA and P6KE8.2CA, the SA8.0CA-E3/54 offers tighter V_BR tolerance (±5.5 %), AEC-Q101 qualification out-of-box, and RoHS-compliant E3 plating - making it optimal for new automotive and industrial designs requiring verified reliability and precise clamping thresholds.

Availability

SA8.0CA-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, consumer appliance control boards, and telecom power supply protection requiring stable component supply and full traceability.

Supply support for SA8.0CA-E3/54 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.

The SAxxCA series is part of Vishay's TransZORB® TVS platform, engineered specifically for bidirectional transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.

FAQ

What is the clamping voltage of SA8.0CA-E3/54 at its rated peak pulse current?

The SA8.0CA-E3/54 has a maximum clamping voltage (V_C) of 13.6 V at 25 A peak pulse current (I_PPM) under the standard 10/1000 μs waveform. This value is measured per Figure 9 in the official Vishay datasheet (Doc. #88378) and defines the upper voltage limit imposed on protected circuits during surge events. The SA8.0CA-E3/54 maintains this clamping performance across its full operating temperature range.

Is SA8.0CA-E3/54 suitable for automotive applications?

Yes, the SA8.0CA-E3/54 is AEC-Q101 qualified and explicitly listed in Vishay's automotive-grade product documentation. Its DO-15 package, 175 °C maximum junction temperature, and glass-passivated junction meet requirements for under-hood and body electronics. The SA8.0CA-E3/54 is commonly used in door modules, lighting controls, and sensor interfaces where bidirectional transient immunity is required.

Does SA8.0CA-E3/54 have polarity markings on the package?

No, the SA8.0CA-E3/54 has no color band or other polarity marking because it is a bidirectional TVS diode. Both terminals are functionally identical, allowing unrestricted orientation during PCB assembly. This contrasts with unidirectional variants like SA8.0A, which feature a cathode band. The SA8.0CA-E3/54's symmetry simplifies layout and eliminates orientation errors in high-volume manufacturing.

What is the maximum steady-state power dissipation for SA8.0CA-E3/54?

The SA8.0CA-E3/54 has a maximum steady-state power dissipation (P_D) of 3.0 W when mounted on an infinite heatsink at lead temperature (T_L) = 75 °C, as defined in Figure 5 of the Vishay datasheet. This rating applies to continuous DC or low-duty-cycle conditions - not transient suppression. For sustained power handling, thermal design must ensure T_J remains ≤175 °C, and the SA8.0CA-E3/54 should not be used as a primary voltage regulator.

How does SA8.0CA-E3/54 differ from SA8.0A?

The SA8.0CA-E3/54 is bidirectional with symmetrical clamping in both directions and no polarity marking, whereas SA8.0A is unidirectional with a cathode band and forward conduction capability. Key differences include: SA8.0CA-E3/54 has no I_FSM rating (70 A for SA8.0A), no V_F specification (3.5 V at 100 A for SA8.0A), and identical V_BR min/max but different test configurations. The SA8.0CA-E3/54 is selected when line-to-line or AC-coupled transient protection is needed.

SA8.0CA-E3/54 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Package/Case:: DO-204AC, DO-15, Axial

Series:: TransZorb®

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: -

Bidirectional Channels:: 1

Voltage - Reverse Standoff (Typ):: 8V

Voltage - Breakdown (Min):: 8.89V

Voltage - Clamping (Max) @ Ipp:: 13.6V

Current - Peak Pulse (10/1000µs):: 36.8A

Power - Peak Pulse:: 500W

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

SA8.0CA-E3/54 FAQ

1.How can I place an order for SA8.0CA-E3/54 through Aetrix?

Please submit a Request for Quotation (RFQ) for SA8.0CA-E3/54 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SA8.0CA-E3/54 reliable?

The price and inventory of SA8.0CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA8.0CA-E3/54 is usually 5 days.

3.What payment methods are accepted for SA8.0CA-E3/54?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA8.0CA-E3/54 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SA8.0CA-E3/54?

SA8.0CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SA8.0CA-E3/54 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SA8.0CA-E3/54?

For technical support, including SA8.0CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA8.0CA-E3/54 requirements.

6.How does Aetrix verify that SA8.0CA-E3/54 is sourced from the original manufacturer or authorized distributors?

All SA8.0CA-E3/54 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SA8.0CA-E3/54 meets industry standards.

7.What is the process for return or replacement of SA8.0CA-E3/54?

All SA8.0CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA8.0CA-E3/54, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SA8.0CA-E3/54 part is unused and in its original packaging.

Return procedure for SA8.0CA-E3/54:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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