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Vishay General Semiconductor - Diodes Division SA8.0A-E3/54
- Part No.:
- SA8.0A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA8.0A-E3/54.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,411
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Product details
Overview
SA8.0A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for circuit protection against ESD and surge events. It features 8.0 V stand-off voltage, 8.89–9.83 V breakdown voltage at 10 mA, 36.8 A peak pulse current (10/1000 μs), 13.6 V clamping voltage at IPPM, and 500 W peak pulse power rating.
For engineers reviewing the SA8.0A-E3/54 datasheet, SA8.0A-E3/54 pinout, SA8.0A-E3/54 application, or SA8.0A-E3/54 equivalent, this device is selected for robust overvoltage protection in DC power rails, I/O interfaces, and sensor signal lines where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are required.
Technical Context
The SA8.0A-E3/54 operates as a unidirectional avalanche clamp with glass-passivated junction, delivering sub-nanosecond response to transients. Its 13.6 V clamping voltage at 36.8 A ensures tight voltage limiting during 10/1000 μs surges, while 1.0 μA max reverse leakage at 8.0 V supports low-power standby integrity.
Thermal design is enabled by 3.0 W steady-state power dissipation on infinite heatsink and 175 °C max junction temperature. The device meets JESD22-B106 soldering requirements (275 °C, 10 s) and JESD201 Class 1A whisker resistance, supporting automated assembly in automotive and industrial environments.
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 - defines guaranteed avalanche conduction onset window |
| VC @ IPPM | 13.6 V at 36.8 A - clamped voltage during full-rated 10/1000 μs surge, limiting downstream stress |
| PPPM | 500 W - peak transient energy handling capability under standardized waveform |
| ID @ VWM | ≤1.0 μA - ultra-low leakage preserves battery life and signal integrity in high-impedance circuits |
| TJ max | +175 °C - enables operation in under-hood automotive and industrial ambient conditions |
| Package | DO-15 (DO-204AC) - industry-standard axial leaded package compatible with legacy through-hole assembly |
Pinout & Package
DO-15 (DO-204AC) package with axial leads: cathode indicated by color band; anode and cathode terminals support unidirectional clamping from line-to-ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; connected to protected line | Accepts surge current during reverse-biased clamping mode when cathode is held at higher potential |
| Cathode | Current exit during clamping; typically tied to ground or lower-potential rail | Provides low-impedance path to reference plane during transient, enabling rapid voltage clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repetitive surge stress |
| 500 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without derating in typical PCB layouts |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics applications requiring zero-failure field performance |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
| Matte tin-plated leads | Ensures solderability per J-STD-002 and compatibility with Pb-free reflow and wave processes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges above 8.0 V. Use Value: Clamps to 13.6 V at 36.8 A, preventing damage to downstream LDOs and microcontrollers rated for ≤16 V absolute max. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Line-to-ground TVS on 0–5 V sensor output, leveraging low 1.0 μA leakage to avoid signal offset. Use Value: Sub-ns response captures fast ESD pulses (IEC 61000-4-2 ±8 kV contact), preserving ADC accuracy and sensor calibration stability. |
| Consumer USB Port Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding VBUS line in USB 2.0 host ports against hot-plug and ESD-induced overvoltage. IC Role / Device Role / Timing Role: Unidirectional clamp from VBUS to GND, coordinated with series impedance to limit current into USB PHY. Use Value: 13.6 V clamping ensures USB 2.0 PHY (max 6.8 V) remains within safe operating area during ±15 kV air discharge events. | Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges on distribution lines. IC Role / Device Role / Timing Role: Reverse-connected SA8.0A-E3/54 (cathode to -48 V rail, anode to ground) for negative-rail clamping. Use Value: Maintains 1.0 μA leakage at -8.0 V reverse bias, avoiding parasitic drain on backup batteries while clamping to -13.6 V during surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Same VWM (8.0 V), identical DO-214AC package, but 400 W PPPM rating and 32.4 A IPPM | Limited to lower-energy transients; not AEC-Q101 qualified | Select SMAJ8.0A only for cost-sensitive consumer designs where automotive qualification is unnecessary |
| P6SMB8.0A | Same VWM and DO-214AA package, 600 W PPPM, 43.3 A IPPM, but 14.5 V VC and no AEC-Q101 certification | Higher clamping voltage reduces margin for 12 V systems; suited for non-automotive industrial use | Choose P6SMB8.0A when higher surge current headroom is needed and 14.5 V clamping is acceptable |
Compared with SMAJ8.0A and P6SMB8.0A, the SA8.0A-E3/54 delivers tighter clamping (13.6 V vs. ≥14.5 V), AEC-Q101 qualification, and DO-15 through-hole compatibility-making it optimal for automotive and high-reliability industrial PCBs where layout change is constrained.
Availability
SA8.0A-E3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom DC input safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SA8.0A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SAxxA series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments including automotive power systems and industrial control cabinets.
FAQ
What is the clamping voltage of the SA8.0A-E3/54 under full-rated surge conditions?
The SA8.0A-E3/54 clamps to 13.6 V when subjected to its maximum rated peak pulse current of 36.8 A using the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and guarantees protection margin for downstream 12 V-rated ICs. The SA8.0A-E3/54 maintains this clamping performance across its full operating temperature range of –55 °C to +175 °C.
Is the SA8.0A-E3/54 suitable for automotive applications?
Yes, the SA8.0A-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and infotainment power supplies. Its DO-15 package, 175 °C junction rating, and validated surge performance under ISO 7637-2 and IEC 61000-4-5 make it appropriate for under-hood and cabin environments. The SA8.0A-E3/54 meets JESD201 Class 1A whisker resistance and JESD22-B106 soldering standards required for automotive manufacturing.
What is the reverse leakage current specification for SA8.0A-E3/54 at its stand-off voltage?
The SA8.0A-E3/54 exhibits a maximum reverse leakage current (ID) of 1.0 μA when biased at its 8.0 V stand-off voltage (VWM) and tested at 25 °C. This ultra-low leakage ensures minimal power loss in battery-backed systems and avoids loading errors in high-impedance sensor signal paths. The SA8.0A-E3/54 maintains leakage below 5.0 μA up to 125 °C per derating curves in the Vishay datasheet.
How does the SA8.0A-E3/54 differ from bidirectional variants like SA8.0CA?
The SA8.0A-E3/54 is unidirectional and features a cathode band for polarity identification, whereas SA8.0CA is bidirectional with no marking and symmetrical clamping in both directions. The SA8.0A-E3/54 has a forward voltage drop (~3.5 V at 100 A) and supports DC blocking in one direction, while SA8.0CA provides AC-coupled protection. Their breakdown voltages differ slightly: SA8.0A-E3/54 is 8.89–9.83 V, while SA8.0CA is 8.89–9.83 V in each direction but with doubled ID limit per note (3) in the datasheet.
What packaging format is used for the SA8.0A-E3/54, and what does the "/54" suffix indicate?
The SA8.0A-E3/54 is supplied in 13-inch diameter paper tape and reel packaging, with 4000 units per reel. The "/54" suffix denotes Vishay's preferred package code for this configuration, and "E3" indicates RoHS-compliant, commercial-grade matte tin plating meeting JESD201 Class 1A whisker resistance. The SA8.0A-E3/54 uses DO-15 (DO-204AC) molded epoxy package with axial leads, optimized for through-hole insertion and wave soldering.
SA8.0A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SA8.0A-E3/54 FAQ
1.How can I place an order for SA8.0A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA8.0A-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 SA8.0A-E3/54 reliable?
The price and inventory of SA8.0A-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 SA8.0A-E3/54 is usually 5 days.
3.What payment methods are accepted for SA8.0A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA8.0A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA8.0A-E3/54?
SA8.0A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA8.0A-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 SA8.0A-E3/54?
For technical support, including SA8.0A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA8.0A-E3/54 requirements.
6.How does Aetrix verify that SA8.0A-E3/54 is sourced from the original manufacturer or authorized distributors?
All SA8.0A-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 SA8.0A-E3/54 meets industry standards.
7.What is the process for return or replacement of SA8.0A-E3/54?
All SA8.0A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA8.0A-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 SA8.0A-E3/54 part is unused and in its original packaging.
Return procedure for SA8.0A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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