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Vishay General Semiconductor - Diodes Division SA8.0-E3/54
- Part No.:
- SA8.0-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA8.0-E3/54.pdf
- Description:
- TVS DIODE 8VWM 15VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,776
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Product details
Overview
SA8.0-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 10 mA, 13.6 V clamping voltage (VC) at 36.8 A peak pulse current (IPPM), and 500 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SA8.0-E3/54 datasheet, SA8.0-E3/54 pinout, SA8.0-E3/54 application, or SA8.0-E3/54 equivalent, this device is selected for robust transient suppression in automotive power supplies, industrial sensor interfaces, and consumer power adapters where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are required.
Technical Context
The SA8.0-E3/54 operates as a silicon avalanche diode that enters controlled breakdown above its 8.0 V stand-off threshold, diverting surge energy to ground while limiting downstream voltage to ≤13.6 V at 36.8 A. Its unidirectional polarity enables integration into DC-biased circuits without reverse conduction concerns.
It delivers 500 W peak pulse power per 10/1000 μs waveform with 0.01% duty cycle, supports 70 A non-repetitive forward surge current (IFSM), and maintains stable operation across –55 °C to +175 °C junction temperature range - validated under AEC-Q101 stress testing for automotive reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 8.89 V / 9.83 V at 10 mA - ensures reliable turn-on within tight tolerance band |
| VC @ IPPM | 13.6 V at 36.8 A - limits protected circuit voltage during 500 W transient events |
| PPPM | 500 W - handles high-energy surges such as ISO 7637-2 Pulse 1/2a/5a in automotive systems |
| ID @ VWM | 25 μA - ultra-low leakage preserves battery life and signal integrity in standby |
| TJ max | +175 °C - supports under-hood and industrial high-temp environments |
| Package | DO-204AC (DO-15) - industry-standard through-hole footprint compatible with legacy PCB layouts |
Pinout & Package
DO-204AC (DO-15) package with axial leads; cathode indicated by color band on body. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC input or signal line side | Connected to protected node; conducts only during forward surge events (e.g., IFSM) |
| Cathode | Ground reference side | Color-banded end; provides low-impedance path to ground during reverse-biased transients |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR and long-term reliability under thermal cycling and humidity exposure |
| 500 W peak pulse power (10/1000 μs) | Withstands automotive load dump and inductive switching surges without degradation |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during ESD/EFT events, protecting sensitive 3.3 V/5 V ICs |
| RoHS-compliant E3 suffix | Meets EU Directive 2011/65/EU; lead-free matte tin plating enables Pb-free reflow compatibility |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 load dump pulses and alternator ripple. IC Role / Device Role / Timing Role: Primary TVS clamp placed upstream of LDO regulators and microcontrollers. Use Value: Limits transient voltage to ≤13.6 V, preventing latch-up or gate oxide damage in downstream 16 V-rated components. | Use Scenario: Shielding 4–20 mA current loop transmitters from field-induced surges in factory automation. IC Role / Device Role / Timing Role: Unidirectional shunt protector on supply rail and analog output line. Use Value: Sub-1 ns response time clamps fast transients before they propagate into precision DACs or op-amps. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters powering USB-C PD devices. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 5 V/9 V/12 V output rails. Use Value: 25 μA max reverse leakage avoids quiescent current drain in energy-efficient standby modes. | Use Scenario: Front-end protection of Ethernet PHYs and PoE injectors against lightning-induced surges. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor before gas discharge tube (GDT) and series impedance. Use Value: 500 W rating handles combination wave (1.2/50 μs & 8/20 μs) surges per IEC 61000-4-5 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Same VWM (8.0 V), but SMA package (SMT); lower IPPM (36.1 A vs. 36.8 A); same VC (13.6 V) | Requires PCB redesign for surface-mount assembly; better suited for space-constrained designs | Select SMAJ8.0A when board area is limited and reflow capability exists. |
| P6SMB8.0A | Same VWM (8.0 V), DO-214AA (SMB) package; higher IPPM (41.2 A); slightly higher VC (13.9 V) | Higher surge margin but larger footprint than DO-15; not drop-in compatible | Choose P6SMB8.0A when enhanced single-pulse robustness is prioritized over legacy through-hole compatibility. |
Compared with SMAJ8.0A and P6SMB8.0A, the SA8.0-E3/54 offers proven through-hole mechanical stability for high-vibration environments, maintains identical clamping performance, and supports existing DO-15 tooling and inspection workflows without layout changes.
Availability
SA8.0-E3/54 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor modules, and consumer power adapters requiring stable component supply and long-term obsolescence management.
Supply support for SA8.0-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 passive components with emphasis on reliability and automotive-grade qualification.
The SAxxA series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting design-in for automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the SA8.0-E3/54 under standard test conditions?
The SA8.0-E3/54 has a maximum clamping voltage (VC) of 13.6 V when subjected to its rated peak pulse current of 36.8 A using the 10/1000 μs waveform. This value is measured per JEDEC standards and reflects the actual voltage seen by protected circuitry during surge events. The SA8.0-E3/54 maintains this clamping performance across its full operating temperature range.
Is the SA8.0-E3/54 suitable for automotive applications?
Yes, the SA8.0-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. It meets stress test requirements including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). Its DO-204AC package and 175 °C max junction temperature make it appropriate for engine control, body electronics, and infotainment power rail protection. The SA8.0-E3/54 is listed in Vishay's automotive-grade product portfolio.
Does the SA8.0-E3/54 have polarity marking, and how is it identified?
Yes, the SA8.0-E3/54 is a unidirectional TVS diode with cathode polarity marked by a visible color band on the body. Per Vishay documentation, the banded end corresponds to the cathode terminal, which must be connected toward ground or the lower-potential reference point in the circuit. This marking is consistent across all SAxxA unidirectional variants and is verified in the mechanical drawings of document 88378.
What is the peak forward surge current rating for the SA8.0-E3/54?
The SA8.0-E3/54 is rated for a non-repetitive peak forward surge current (IFSM) of 70 A, tested with an 8.3 ms single half-sine waveform at 60 Hz. This rating applies only to forward-biased surge events and confirms the device's ability to survive short-duration overcurrents without parametric shift or catastrophic failure. The SA8.0-E3/54 sustains this rating across its full operating temperature range.
How does the SA8.0-E3/54 compare to bi-directional TVS diodes like SA8.0CA?
The SA8.0-E3/54 is unidirectional and intended for DC-biased circuits, whereas SA8.0CA is bi-directional and used in AC or dual-rail applications. Key differences include polarity marking (band present on SA8.0-E3/54, absent on SA8.0CA), reverse leakage (25 μA vs. 50 μA at VWM), and breakdown symmetry. The SA8.0-E3/54 cannot replace SA8.0CA in AC-coupled signal paths without circuit redesign due to its asymmetric conduction behavior.
SA8.0-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 33.3A
- 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)
SA8.0-E3/54 FAQ
1.How can I place an order for SA8.0-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA8.0-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 SA8.0-E3/54 reliable?
The price and inventory of SA8.0-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 SA8.0-E3/54 is usually 5 days.
3.What payment methods are accepted for SA8.0-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA8.0-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA8.0-E3/54?
SA8.0-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA8.0-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 SA8.0-E3/54?
For technical support, including SA8.0-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA8.0-E3/54 requirements.
6.How does Aetrix verify that SA8.0-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA8.0-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 SA8.0-E3/54 meets industry standards.
7.What is the process for return or replacement of SA8.0-E3/54?
All SA8.0-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA8.0-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 SA8.0-E3/54 part is unused and in its original packaging.
Return procedure for SA8.0-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA8.0-E3/54 Tags
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