My Inquiry
My Account
Taiwan Semiconductor Corporation SA8.0CA
- Part No.:
- SA8.0CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA8.0CA.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,862
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA8.0CA from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode with 8.0V working stand-off voltage, 8.89–10.9V breakdown voltage at 1mA test current, and 15.0V maximum clamping voltage at 25A peak pulse current. It features low leakage (<1μA above 10V), 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 SA8.0CA datasheet, SA8.0CA pinout, SA8.0CA application, or SA8.0CA equivalent, key selection criteria include clamping voltage vs. protected IC VDD, unidirectional polarity marking, AEC-Q101 qualification status, and 175°C junction temperature rating for under-hood deployment.
Technical Context
The SA8.0CA operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 8.89–10.9V VBR range at 1mA. Its 15.0V VC at 25A ensures robust clamping of 10/1000μs transients without exceeding downstream device absolute maximum ratings.
Designed for single-polarity DC line protection, it exhibits <1.0ps response time from 0V to VBR, 1μA max reverse leakage at 8.0V, and thermal derating per Fig.2 - maintaining 500W peak power only at TA ≤ 25°C and full derating above.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR @ IT=1mA | 8.89–10.9 V - Breakdown threshold defining turn-on point for surge suppression |
| VC @ IPPM=25A | 15.0 V - Clamped voltage during 10/1000μs surge, limiting stress on protected ICs |
| PPK | 500 W - Peak surge power handling capability per non-repetitive 1ms pulse |
| IR @ VWM | <1 μA - Minimal leakage current preserving system standby power integrity |
| TJMAX | 175 °C - Maximum junction temperature enabling under-hood automotive use |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with tin-plated leads per J-STD-002 |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case meeting UL 94V-0, cathode band marked on one end for unidirectional polarity identification. Leads are pure tin-plated and solderable per J-STD-002; weight ≈ 0.400g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / Ground reference terminal | Connected to system ground or low-side return; conducts during forward surge events (e.g., IFSM=70A) |
| Cathode | Reverse-biased protection node | Connected to protected line (e.g., 12V rail); avalanches when transient exceeds VBR, shunting energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics per stress test requirements |
| 500W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 4 surges without degradation |
| <1.0ps response time | Clamps transients before sensitive logic inputs reach destructive voltage thresholds |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
| Low impedance surge path | Enables effective energy diversion with minimal VC overshoot during high-di/dt events |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery line in engine control module exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between VBAT and GND to absorb 500W transients while holding clamped voltage ≤15.0V. Use Value: Prevents overvoltage damage to MCU power pins and CAN transceivers during ISO 7637-2 Pulse 5a events. | Use Scenario: 5V analog sensor supply line in factory automation PLC subjected to EFT bursts. IC Role / Device Role / Timing Role: Standoff protector on sensor VCC rail, activated only during >8.89V transients to avoid false triggering. Use Value: Maintains signal integrity by limiting EFT-induced voltage excursions to <15.0V for 25A pulses. |
| LED Driver Input Protection | DC-DC Converter Input Stage |
Use Scenario: Constant-current LED driver input connected to 24V industrial bus with inductive switching noise. IC Role / Device Role / Timing Role: Primary surge limiter on input rail, absorbing repetitive 10/1000μs spikes from relay coil de-energization. Use Value: Extends LED driver lifetime by preventing cumulative gate oxide stress from sub-100ns transients. | Use Scenario: Input stage of isolated 48V-to-12V buck converter in telecom power shelf. IC Role / Device Role / Timing Role: First-line defense against IEC 61000-4-5 surges entering via front-end connectors. Use Value: Ensures converter IC survives 4kV common-mode surges with clamped input voltage ≤15.0V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ8.0A | Same DO-214AC package, identical VWM/VBR/VC specs, but rated for 400W not 500W peak power | Not AEC-Q101 qualified; suitable for commercial/industrial but not automotive Tier-1 designs | Select SMAJ8.0A only if AEC-Q101 compliance is not required and 400W surge margin suffices |
| ON Semiconductor 1.5SMC8.0A | DO-214AB package (larger than DO-204AC), same electrical specs, 500W rating, but no AEC-Q101 documentation available | Requires PCB layout change due to different footprint; higher thermal mass may affect transient response | Choose 1.5SMC8.0A only when board space allows larger SMC package and automotive qualification is secondary |
Compared with SMAJ8.0A and 1.5SMC8.0A, the SA8.0CA uniquely combines AEC-Q101 qualification, DO-204AC compactness, and full 500W 10/1000μs rating - making it optimal for space-constrained automotive modules requiring certified reliability.
Availability
SA8.0CA is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and LED driver input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SA8.0CA 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global distribution and AEC-Q101 validation capabilities.
The SA Series was developed specifically for automotive and industrial transient suppression, emphasizing high surge robustness, low clamping voltage, and qualification to stringent reliability standards.
FAQ
What is the polarity configuration of the SA8.0CA?
The SA8.0CA is a unidirectional TVS diode with clearly marked cathode band on the DO-204AC package. It conducts in forward bias up to 3.5V at 35A and avalanches in reverse bias above its 8.89–10.9V breakdown range. This polarity must be observed during PCB placement to ensure correct clamping direction on protected lines.
Does the SA8.0CA meet AEC-Q101 requirements?
Yes, the SA8.0CA is explicitly AEC-Q101 qualified as confirmed in the SA Series datasheet Version L2105. It has passed stress tests including high-temperature operating life, temperature cycling, and mechanical shock - validating its suitability for automotive electronic control units and body electronics applications.
What is the maximum clamping voltage of the SA8.0CA under surge conditions?
The SA8.0CA has a maximum clamping voltage (VC) of 15.0V at 25A peak pulse current under the standard 10/1000μs waveform. This value is guaranteed across temperature and ensures protected ICs remain within safe operating limits during surge events.
Can the SA8.0CA be used in bidirectional applications?
No, the SA8.0CA is strictly unidirectional. For bidirectional protection, Taiwan Semiconductor offers the SA8.0C variant (without 'A' suffix) or SA8.0CA's counterpart SA8.0A - which is also unidirectional but optimized for lower leakage. True bidirectional equivalents require part numbers ending in 'C' only, such as SA8.0C.
What is the thermal derating behavior of the SA8.0CA above 25°C ambient?
The SA8.0CA's 500W peak pulse power rating applies only at TA = 25°C. Above this temperature, power must be derated linearly per Figure 2 in the datasheet - reaching zero at approximately 175°C case temperature. Designers must apply this curve when sizing heatsinking or estimating worst-case surge capacity in high-temperature environments.
SA8.0CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- SA
- 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):
- 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)
SA8.0CA FAQ
1.How can I place an order for SA8.0CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SA8.0CA 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 reliable?
The price and inventory of SA8.0CA 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 is usually 5 days.
3.What payment methods are accepted for SA8.0CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA8.0CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA8.0CA?
SA8.0CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA8.0CA 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?
For technical support, including SA8.0CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA8.0CA requirements.
6.How does Aetrix verify that SA8.0CA is sourced from the original manufacturer or authorized distributors?
All SA8.0CA 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 meets industry standards.
7.What is the process for return or replacement of SA8.0CA?
All SA8.0CA units undergo pre-shipment inspection (PSI). If there is an issue with SA8.0CA, 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 part is unused and in its original packaging.
Return procedure for SA8.0CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA8.0CA 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…
