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Taiwan Semiconductor Corporation SA15CA A0G
- Part No.:
- SA15CA A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA15CA A0G.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,781
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Product details
Overview
SA15CA A0G from Taiwan Semiconductor is a bidirectional 15V transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, with 24.4V min / 29.8V max breakdown voltage at 1mA test current and 38.9V clamping voltage at 13.0A peak pulse current. It protects automotive and industrial circuits against ESD, EFT, and inductive switching transients.
For engineers reviewing the SA15CA A0G datasheet, SA15CA A0G pinout, SA15CA A0G application, or SA15CA A0G equivalent, this page delivers verified electrical parameters, bidirectional TVS behavior, DO-15 mechanical data, AEC-Q101 qualification status, and real-world protection use cases - all confirmed from Taiwan Semiconductor's official SA Series documentation (L2105).
Technical Context
The SA15CA A0G is a bidirectional avalanche diode designed to clamp transient overvoltages symmetrically in both polarities. Its VBR range (24.4–29.8V) and VC of 38.9V at IPPM = 13.0A define its surge-handling capability under standardized 10/1000μs waveform conditions.
It operates across –55°C to +175°C junction temperature, supports ≤1μA reverse leakage at 15V working stand-off voltage, and exhibits <5ns response time - enabling fast suppression of ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4) events without affecting signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous DC or RMS voltage the device blocks without clamping |
| VBR (min/max) | 24.4 V / 29.8 V at IT = 1 mA - Ensures reliable avalanche initiation within defined tolerance band |
| VC @ IPPM | 38.9 V at 13.0 A - Clamped voltage during 10/1000μs surge; determines protected circuit's maximum stress level |
| PPK | 500 W - Peak pulse power handling per single non-repetitive 10/1000μs event |
| TJ max | +175 °C - Enables operation in under-hood automotive and high-temp industrial environments |
| IR @ VWM | <1 μA - Negligible leakage current preserves low-power system standby performance |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case meeting UL 94V-0 flammability rating; polarity marked by cathode band (not applicable for bidirectional SA15CA).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Acts as cathode during positive transients; conducts symmetrically with cathode terminal |
| Cathode | Transient return path (bidirectional) | Acts as anode during negative transients; identical conduction behavior to anode terminal |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or differential buses without polarity concerns |
| AEC-Q101 qualified | Validated for automotive applications including engine control, lighting, and body electronics |
| 500W 10/1000μs surge rating | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 requirements |
| Fast 5.0 ns response time | Clamps transients before sensitive ICs experience overstress - critical for CAN, LIN, and sensor interfaces |
| Halogen-free & RoHS compliant | Supports environmentally regulated industrial and automotive supply chains per IEC 61249-2-21 |
Applications
| Automotive Lighting Systems | Industrial Sensor Interfaces |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontrollers from load-dump and inductive kickback in headlamp and tail lamp modules. IC Role / Device Role: Primary transient shunt placed across power input rails upstream of DC-DC converters. Use Value: Limits voltage excursion to ≤38.9V during 13A surges, preventing latch-up or gate oxide damage in 3.3V/5V logic. | Use Scenario: Safeguarding analog front-end (AFE) inputs of pressure, temperature, or position sensors exposed to EFT noise on factory floors. IC Role / Device Role: Bidirectional clamping element on differential signal pairs (e.g., RS-485, CAN bus stubs). Use Value: Maintains signal fidelity below 15V working voltage while suppressing ±2kV EFT bursts per IEC 61000-4-4. |
| Power Supply Input Protection | Consumer Appliance Motor Control |
Use Scenario: Front-end protection of 12V/24V switch-mode power supplies against lightning-induced surges and grid switching transients. IC Role / Device Role: First-line defense parallel to bulk input capacitor, diverting energy before rectifier and controller stages. Use Value: Absorbs 500W peak pulses without degradation, preserving downstream MOSFETs and PWM controllers. | Use Scenario: Shielding BLDC motor driver gate drivers and current-sense amplifiers from commutation spikes in washing machines and HVAC blowers. IC Role / Device Role: Localized clamping across half-bridge high-side/low-side supply rails. Use Value: Clamps repetitive 100ns–1μs spikes to ≤38.9V, preventing false triggering and overvoltage lockout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15CA | Same VWM (15V), slightly higher VC (40.0V @ 12.3A), SMA package (surface-mount) | Requires PCB rework for SMT vs. through-hole DO-15; lower thermal mass limits repetitive surge duty | Select when board space is constrained and automated assembly is required |
| P6SMB15CA | Identical VWM/VBR/VC specs, same DO-214AA (SMB) package footprint but different lead form | Not axial-leaded; incompatible with existing DO-15 socket or wave-solder tooling | Choose only if redesigning for SMB layout and thermal management allows |
Compared with SMAJ15CA and P6SMB15CA, the SA15CA A0G offers proven axial-leaded reliability for through-hole manufacturing, AEC-Q101 qualification out-of-box, and direct compatibility with legacy DO-15 mounting - making it optimal for automotive service parts and industrial retrofits where mechanical robustness and supply continuity matter.
Availability
SA15CA A0G is available at Aetrix Electronics and suitable for automotive lighting systems, industrial sensor interfaces, power supply input protection, and consumer appliance motor control requiring stable component supply across extended product lifecycles.
Supply support for SA15CA 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 Company (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The SA Series TVS diodes were engineered specifically for high-reliability transient suppression in harsh environments - emphasizing AEC-Q101 compliance, wide temperature operation, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the breakdown voltage range of the SA15CA A0G?
The SA15CA A0G has a minimum breakdown voltage (VBR) of 24.4 V and a maximum of 29.8 V, measured at 1 mA test current per ANSI/IEEE C62.35. This bidirectional specification applies equally in both polarities and defines the voltage threshold at which the SA15CA A0G begins conducting significant current to clamp transients.
Is the SA15CA A0G AEC-Q101 qualified?
Yes, the SA15CA A0G is AEC-Q101 qualified, as confirmed in Taiwan Semiconductor's SA Series documentation (Version L2105). This qualification validates its suitability for automotive applications including engine control units, lighting modules, and body electronics where reliability under thermal cycling, humidity, and mechanical shock is mandatory - a key differentiator for the SA15CA A0G versus non-qualified alternatives.
What is the clamping voltage of the SA15CA A0G at its rated peak pulse current?
The SA15CA A0G clamps to a maximum of 38.9 V at its rated peak pulse current of 13.0 A under the standard 10/1000 μs waveform. This VC value is critical for determining whether downstream components - such as 3.3V or 5V microcontrollers - remain within safe operating voltage limits during surge events, and is a guaranteed parameter in the SA15CA A0G datasheet.
Does the SA15CA A0G have polarity markings, and how does that affect its use?
No - the SA15CA A0G is a bidirectional TVS diode and does not require polarity orientation during placement. Unlike unidirectional variants (e.g., SA15A), it lacks a cathode band marking because its internal structure provides symmetrical clamping in both directions. This simplifies layout and eliminates risk of reverse installation, making the SA15CA A0G ideal for AC-coupled or differential signal protection where polarity is undefined.
What package type and packing format does the SA15CA A0G use?
The SA15CA A0G uses the DO-204AC (DO-15) axial-leaded package and ships in 1,500-piece ammo boxes (denoted by the "A0G" suffix in the ordering code). This through-hole package supports robust mechanical mounting and high thermal dissipation in power-intensive applications, and the ammo box format enables manual or selective soldering in low-volume or repair scenarios - distinguishing the SA15CA A0G from tape-and-reel variants intended for automated assembly.
SA15CA A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- SA
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 21A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA15CA A0G FAQ
1.How can I place an order for SA15CA A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for SA15CA 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 SA15CA A0G reliable?
The price and inventory of SA15CA A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA15CA A0G is usually 5 days.
3.What payment methods are accepted for SA15CA A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA15CA A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA15CA A0G?
SA15CA A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA15CA 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 SA15CA A0G?
For technical support, including SA15CA A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA15CA A0G requirements.
6.How does Aetrix verify that SA15CA A0G is sourced from the original manufacturer or authorized distributors?
All SA15CA 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 SA15CA A0G meets industry standards.
7.What is the process for return or replacement of SA15CA A0G?
All SA15CA A0G units undergo pre-shipment inspection (PSI). If there is an issue with SA15CA 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 SA15CA A0G part is unused and in its original packaging.
Return procedure for SA15CA A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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