My Inquiry
My Account
Taiwan Semiconductor Corporation SA8.0A A0G
- Part No.:
- SA8.0A A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA8.0A A0G.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,772
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA8.0A A0G from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode with 8.0V working stand-off voltage, 8.89–9.83V breakdown voltage at 1mA test current, and 13.6V clamping voltage at 25A peak pulse current. It features low leakage (<1μA @ 8V), fast response (<1.0ps), and DO-204AC (DO-15) package for automotive-grade ESD and surge protection in power supply rails.
For engineers reviewing the SA8.0A A0G datasheet, SA8.0A A0G pinout, SA8.0A A0G application, or SA8.0A A0G equivalent, this part is selected for robust overvoltage protection in 12V automotive subsystems, industrial I/O interfaces, and DC-DC converter input stages where low clamping voltage and AEC-Q101-compliant reliability are critical.
Technical Context
The SA8.0A A0G operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 8.89–9.83V breakdown range. Its 13.6V clamping voltage at 25A ensures minimal overvoltage stress on downstream ICs during 10/1000μs transients.
Designed for single-polarity surge suppression, it exhibits <1μA reverse leakage at 8.0V VWM and a temperature coefficient of 7mV/°C for VBR. The device is rated for TJ = –55°C to +175°C and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin below system rail (e.g., 12V nominal). |
| VBR @ IT=1mA | 8.89–9.83 V - Breakdown threshold range; defines precise turn-on point for transient clamping. |
| VC @ IPPM=25A | 13.6 V - Clamped voltage during 10/1000μs surge; limits stress on protected ICs to ≤13.6V. |
| PPK | 500 W - Peak pulse power rating per 10/1000μs waveform; supports high-energy EFT and load-dump immunity. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage; avoids parasitic loading on low-power sensor or logic circuits. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with tin-plated leads; compatible with wave soldering and manual assembly. |
| TJ max | +175 °C - Extended junction temperature rating enables use in under-hood automotive environments. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet UL 94V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / Ground reference | Connected to system ground or low-side return; completes conduction path during reverse transient. |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 12V rail); carries clamped surge current to ground via anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option available | Validated for automotive applications including engine control, body electronics, and infotainment power rails. |
| 500W peak pulse power (10/1000μs) | Withstands ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-4 EFT bursts without degradation. |
| Clamping voltage ≤13.6V at 25A | Ensures protected ICs (e.g., CAN transceivers, microcontrollers) remain within absolute maximum ratings during surge events. |
| Response time <1.0ps | Activates faster than most semiconductor switching transients, preventing voltage overshoot before protection engages. |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with automotive and industrial environmental directives without compromising thermal or electrical performance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges above 8V. Use Value: Limits rail voltage to ≤13.6V during 500W transients, preserving MCU and analog front-end integrity. |
Use Scenario: Safeguarding 4–20mA loop-powered sensors against ESD and cable-induced surges. IC Role / Device Role / Timing Role: Standoff protection element on sensor supply line, absorbing ±8kV contact ESD per IEC 61000-4-2. Use Value: Sub-1μA leakage avoids signal offset errors; fast response prevents latch-up in precision ADCs. |
| DC-DC Converter Input Stage | USB/Serial Port ESD Clamp |
|
Use Scenario: Input protection for buck converters in automotive infotainment head units. IC Role / Device Role / Timing Role: Primary surge shunt on VIN pin, placed upstream of input capacitor and controller IC. Use Value: 13.6V clamping prevents overvoltage damage to internal MOSFETs and gate drivers during hot-swap events. |
Use Scenario: Board-level ESD protection for RS-485 transceivers and USB VBUS lines in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on power or data lines to divert ESD current to chassis ground. Use Value: 7mV/°C VBR tempco ensures stable clamping across –40°C to +125°C ambient operating range. |
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 DO-214AC package; 13.6V VC @ 25A, but 1.0W steady-state rating vs. SA8.0A A0G's 3W (at TL=75°C). | Preferred for surface-mount PCBs; less suitable for through-hole designs requiring higher thermal mass. | Select SMAJ8.0A only if SMT layout and thermal pad design support its lower PD rating. |
| P6SMB8.0A | DO-214AA package; identical VWM/VBR/VC specs, but 600W PPK rating and higher IPPM (32.5A). | Better suited for systems requiring higher surge margin (e.g., ISO 7637-2 Pulse 5a), but larger footprint. | Choose P6SMB8.0A when 600W surge headroom is required and board space allows DO-214AA dimensions. |
Compared with SMAJ8.0A and P6SMB8.0A, the SA8.0A A0G offers optimal balance of axial-lead manufacturability, 3W thermal dissipation, and AEC-Q101 qualification path-making it ideal for cost-sensitive, high-reliability through-hole automotive modules.
Availability
SA8.0A A0G is available at Aetrix Electronics and suitable for automotive power management, industrial sensor interface, and DC-DC converter input protection requiring stable component supply and long-term lifecycle assurance.
Supply support for SA8.0A A0G 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and consumer markets since 1979.
The SA Series was developed specifically for high-reliability transient suppression in harsh-environment applications, emphasizing AEC-Q101 compliance, tight parameter distribution, and robust surge endurance in axial-leaded packages.
FAQ
What is the maximum clamping voltage of the SA8.0A A0G under standard surge conditions?
The SA8.0A A0G has a maximum clamping voltage (VC) of 13.6 V at 25 A peak pulse current under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry will not experience voltages exceeding 13.6 V during standardized surge events, making SA8.0A A0G suitable for safeguarding 12 V automotive and industrial systems.
Is the SA8.0A A0G unidirectional or bidirectional?
The SA8.0A A0G is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its specified VBR and VC values applying only in reverse bias. It conducts during negative transients on the cathode side and blocks forward current up to 3.5 V, making SA8.0A A0G appropriate for DC rail protection with defined polarity.
Does the SA8.0A A0G meet AEC-Q101 qualification requirements?
The SA8.0A A0G itself is not AEC-Q101 qualified per the ordering code - only variants with "H" suffix (e.g., SA8.0AH) carry that qualification. However, SA8.0A A0G shares the same die and process as AEC-Q101 versions and is widely used in automotive applications where full qualification is not mandated, such as non-safety-critical body electronics. Always verify qualification status via Taiwan Semiconductor's official documentation for SA8.0A A0G.
What is the reverse leakage current specification for SA8.0A A0G at its working voltage?
The SA8.0A A0G exhibits a maximum reverse leakage current (IR) of 1 μA at its 8.0 V working stand-off voltage (VWM), tested at TA = 25°C. This ultra-low leakage ensures minimal power loss and signal interference in always-on circuits, such as battery-backed sensors or low-power microcontroller reset lines, confirming SA8.0A A0G's suitability for energy-sensitive designs.
Can SA8.0A A0G be used in place of SA8.0 in a design?
Yes - SA8.0A A0G replaces SA8.0 with tighter VBR tolerance (8.89–9.83 V vs. 8.89–10.9 V) and improved clamping performance (13.6 V VC vs. 15.0 V). Both share identical DO-204AC packaging and pinout, enabling drop-in replacement where enhanced consistency and lower clamping are beneficial. SA8.0A A0G maintains full compatibility while delivering superior transient response in real-world applications.
SA8.0A A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- SA
- Packaging:
- Tape & Box (TB)
- 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):
- 38A
- 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 A0G FAQ
1.How can I place an order for SA8.0A A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SA8.0A A0G 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 A0G reliable?
The price and inventory of SA8.0A A0G 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 A0G is usually 5 days.
3.What payment methods are accepted for SA8.0A A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA8.0A A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA8.0A A0G?
SA8.0A A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA8.0A A0G 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 A0G?
For technical support, including SA8.0A A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA8.0A A0G requirements.
6.How does Aetrix verify that SA8.0A A0G is sourced from the original manufacturer or authorized distributors?
All SA8.0A A0G 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 A0G meets industry standards.
7.What is the process for return or replacement of SA8.0A A0G?
All SA8.0A A0G units undergo pre-shipment inspection (PSI). If there is an issue with SA8.0A A0G, 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 A0G part is unused and in its original packaging.
Return procedure for SA8.0A A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA8.0A A0G Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
