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Taiwan Semiconductor Corporation SA10AH
- Part No.:
- SA10AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA10AH.pdf
- Description:
- TVS DIODE 10VWM 17VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,377
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Product details
Overview
SA10AH from Taiwan Semiconductor is a unidirectional AEC-Q101-qualified transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for automotive-grade surge protection. It features 500W peak pulse power at 10/1000μs, 11.1–13.6V breakdown voltage (VBR), 10V working stand-off voltage (VWM), <1μA reverse leakage at VWM, and clamps to ≤18.8V at 27A peak pulse current - deployed in engine control units and infotainment power rails.
For engineers reviewing the SA10AH datasheet, SA10AH pinout, SA10AH application, or SA10AH equivalent, this page delivers verified electrical parameters, automotive qualification status, clamping performance under ISO 7637-2 pulses, thermal derating behavior, and direct-fit alternatives for ESD and load-dump protection in 12V automotive systems.
Technical Context
The SA10AH operates as a unidirectional avalanche diode with silicon planar junction construction, optimized for fast transient suppression in automotive 12V supply lines. Its 10V VWM ensures compatibility with nominal 12V systems while maintaining low leakage (<1μA), and its 18.8V clamping voltage at 27A enables robust protection of downstream DC-DC converters and microcontrollers against ISO 7637-2 Pulse 1, 2a, and 5a transients.
Thermal design is supported by a 175°C maximum junction temperature and 3W steady-state power dissipation on 10×10 mm copper pads. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, confirming suitability for under-hood environments where mechanical reliability and flame retardancy are mandated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction; matches 12V automotive nominal rail with 20% margin. |
| VBR min/max | 11.1 / 13.6 V @ 1 mA - Breakdown occurs within this range, ensuring predictable turn-on during transients without premature conduction. |
| VC @ IPPM | 18.8 V @ 27 A - Clamping voltage limits downstream IC stress during 500W 10/1000μs surge; critical for protecting 20V-rated regulators. |
| IPPM | 27 A - Peak pulse current capability derived from 500W rating; sufficient for ISO 7637-2 Pulse 5a (load dump) simulation. |
| TJ max | 175 °C - Enables operation in high-temperature under-hood locations without thermal shutdown or parameter drift. |
| Leakage @ VWM | <1 μA - Minimizes standby power loss and avoids false triggering in always-on vehicle modules. |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band marking for unidirectional polarity. Meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards. Leads are pure tin plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; forms current sink during transient clamp event. |
| Cathode | Protected line input | Connected to 12V supply rail; blocks normal operation up to 10V, avalanches above VBR to shunt surge energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, humidity bias, and mechanical shock per AEC standard. |
| 500W peak pulse power | Withstands ISO 7637-2 load dump surges without degradation when mounted per JEDEC layout guidelines. |
| <1.0 ps response time | Enables sub-nanosecond clamping onset - faster than most microcontroller I/O pin ESD structures, preventing latch-up. |
| DO-204AC (DO-15) package | Industry-standard axial footprint compatible with legacy automotive PCB layouts and automated through-hole assembly. |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Infotainment Power Rail |
|---|---|
Use Scenario: Protects ECU main 12V input against load dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and input filter capacitor; clamps surges before they reach LDOs and MCU power domains. Use Value: Limits voltage to ≤18.8V during 27A transients, preserving 20V-input DC-DC converters and avoiding brownout resets. | Use Scenario: Shields USB-C power delivery and display interface circuitry from ESD and coupled transients in center-stack modules. IC Role / Device Role / Timing Role: Front-end protection device on 12V auxiliary rail feeding PMICs; responds in <1ps to divert fast ESD events. Use Value: Maintains <1μA leakage at 10V, eliminating standby current penalty while enabling fail-safe operation across -40°C to +125°C ambient. |
| Body Control Module (BCM) LIN Bus Supply | ADAS Camera Module Power Line |
Use Scenario: Secures 12V supply to LIN transceivers and wake-up circuitry against electrical fast transients (IEC 61000-4-4). IC Role / Device Role / Timing Role: Low-leakage TVS on regulated 12V bus; prevents false wake-ups caused by µs-scale transients coupling into LIN bias networks. Use Value: 10V VWM ensures no interference with LIN bus idle state (12V dominant), while 18.8V clamping protects transceiver inputs rated to 24V. | Use Scenario: Guards 12V camera module input against hot-swap surges and cable discharge events in rear-view and surround-view systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on camera power entry point; placed upstream of EMI filters and local regulators. Use Value: AEC-Q101 qualification confirms reliability under vibration and thermal cycling, supporting ASIL-B functional safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ10A | Same DO-214AC package; 10V VWM, 11.1–12.3V VBR, 18.8V VC @ 27A, but not AEC-Q101 qualified. | Lacks automotive qualification; suitable only for industrial or consumer applications with lower reliability requirements. | Select SMAJ10A only if AEC-Q101 compliance is not required and DO-214AC SMT layout is preferred over DO-15 through-hole. |
| P6SMB10A | DO-214AA package; identical VWM/VBR/VC specs and 600W rating, but rated for 175°C TJ and RoHS/halogen-free compliant. | Higher peak power (600W vs. 500W); same clamping performance but larger package footprint and different thermal profile. | Choose P6SMB10A when higher surge margin is needed and board space allows DO-214AA; verify thermal pad layout for 3W dissipation. |
Compared with SMAJ10A and P6SMB10A, the SA10AH provides AEC-Q101 validation and DO-15 through-hole compatibility essential for automotive harness-connected modules, while maintaining identical clamping performance and leakage at 10V - making it the only drop-in solution for legacy automotive designs requiring qualification and axial mounting.
Availability
SA10AH is available at Aetrix Electronics and suitable for automotive ECU protection, infotainment power conditioning, and ADAS camera module surge suppression requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SA10AH 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, rectifiers, and MOSFETs for automotive, industrial, and computing markets.
The SA Series is engineered specifically for automotive-grade transient suppression, emphasizing AEC-Q101 qualification, high-temperature stability, and precise clamping performance in 12V/24V vehicle electrical systems.
FAQ
What is the AEC-Q101 qualification status of the SA10AH?
The SA10AH is explicitly AEC-Q101 qualified per the manufacturer's ordering code suffix "H", confirmed in TSC's SA Series datasheet Version L2105. This qualification covers temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing, and mechanical shock - validating its use in automotive powertrain and body electronics where reliability is mission-critical. SA10AH meets all stress test conditions defined in AEC-Q101 Rev D without failure.
Does the SA10AH have bidirectional or unidirectional polarity?
The SA10AH is a unidirectional TVS diode, indicated by absence of "C" or "CA" suffix and presence of cathode band marking per DO-204AC mechanical drawing. Its electrical characteristics - including VBR, VWM, and VC - apply only in reverse-bias mode; forward conduction follows standard silicon diode behavior with 3.5V max VF at 35A. Bidirectional variants (e.g., SA10CA) are separate part numbers.
What is the maximum clamping voltage of the SA10AH at rated surge current?
The SA10AH clamps to a maximum of 18.8 V at its rated peak pulse current of 27 A under the 10/1000μs waveform, as specified in the "Maximum clamping voltage VC@IPPM" row of the SA Series electrical characteristics table. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuits during worst-case surge events.
Can the SA10AH be used in 24V automotive systems?
No - the SA10AH has a 10V working stand-off voltage (VWM) and 11.1–13.6V breakdown range, making it suitable only for 12V nominal systems. For 24V applications such as commercial vehicle ECUs or heavy-duty ADAS modules, higher-voltage variants like SA24AH (24V VWM) or SA26AH must be selected to avoid continuous leakage or premature conduction. Using SA10AH on a 24V rail would cause immediate thermal runaway.
What is the thermal derating behavior of the SA10AH above 25°C ambient?
The SA10AH's peak pulse power (500W) and steady-state power (3W) are both derated linearly above TA = 25°C, per Figure 2 in the SA Series datasheet. At 75°C ambient, peak pulse power drops to ~350W and steady-state dissipation falls to ~1.8W. Derating is mandatory for reliable operation in under-hood environments; full 500W capability requires heatsinking or airflow to maintain junction temperature below 175°C.
SA10AH 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 30A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA10AH FAQ
1.How can I place an order for SA10AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA10AH 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 SA10AH reliable?
The price and inventory of SA10AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA10AH is usually 5 days.
3.What payment methods are accepted for SA10AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA10AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA10AH?
SA10AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA10AH 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 SA10AH?
For technical support, including SA10AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA10AH requirements.
6.How does Aetrix verify that SA10AH is sourced from the original manufacturer or authorized distributors?
All SA10AH 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 SA10AH meets industry standards.
7.What is the process for return or replacement of SA10AH?
All SA10AH units undergo pre-shipment inspection (PSI). If there is an issue with SA10AH, 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 SA10AH part is unused and in its original packaging.
Return procedure for SA10AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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