My Inquiry
My Account
Taiwan Semiconductor Corporation SA10A
- Part No.:
- SA10A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA10A.pdf
- Description:
- TVS DIODE 10VWM 17VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,906
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SA10A from Taiwan Semiconductor is a unidirectional 500W transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, with 10V working stand-off voltage (VWM), 11.1–12.3V breakdown voltage (VBR @ 1mA), and 17.0V clamping voltage (VC) at 30A peak pulse current. It delivers fast response (<1.0ps), low leakage (<1μA @ 10V), and AEC-Q101 qualification for automotive-grade surge protection.
For engineers reviewing the SA10A datasheet, SA10A pinout, SA10A application, or SA10A equivalent, this device is selected for robust ESD and lightning-induced transient suppression in 12V automotive power rails, industrial sensor interfaces, and DC input stages where precise VWM margin and low clamping ratio are critical.
Technical Context
The SA10A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its specified VBR range (11.1–12.3V at 1mA). Its clamping action limits transients to ≤17.0V at 30A (10/1000μs waveform), achieving a clamping ratio of ~1.53 (VC/VBRmin). Thermal design relies on junction-to-lead thermal resistance optimized for DO-15 mounting on 10×10 mm copper pads.
It meets AEC-Q101 stress requirements for high-reliability automotive use and complies with RoHS and halogen-free standards (IEC 61249-2-21). Polarity is marked by cathode band; forward voltage is ≤3.5V at 35A, supporting bidirectional surge handling only when paired with complementary devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin above 12V nominal rail. |
| VBR @ 1mA | 11.1–12.3 V - Breakdown threshold range; ensures reliable triggering without premature conduction under ripple or noise. |
| VC @ IPPM | 17.0 V at 30 A - Clamped voltage during 10/1000μs surge; limits downstream IC stress to sub-17V level. |
| PPK | 500 W - Peak pulse power rating; supports single-event surges up to IEC 61000-4-5 Level 4 (4kV/2Ω). |
| IR @ VWM | <1 μA - Reverse leakage at 10V; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +175 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with tin-plated leads, UL 94V-0 molding, and JESD201 Class 2 whisker resistance. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, epoxy-molded, cathode indicated by band-marked end. Leads are pure tin-plated, solderable per J-STD-002, with 0.400g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path; conducts during positive transients when used in reverse-biased configuration. |
| Cathode | Reverse-bias surge clamping terminal | Connected to protected line (e.g., 12V rail); avalanche conduction initiates here when voltage exceeds VBR, shunting surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood applications including temperature cycling, humidity, and mechanical shock per AEC standard. |
| Clamping ratio ≤1.53 | VC/VBRmin = 17.0/11.1 ≈ 1.53 - Tight voltage control ensures protected ICs see minimal overvoltage during worst-case surge. |
| Response time <1.0 ps | Sub-picosecond turn-on enables suppression of ESD events (IEC 61000-4-2) before sensitive logic is damaged. |
| RoHS + halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - suitable for green manufacturing and export compliance. |
| Low IR <1 μA @ 10V | Prevents signal distortion or bias shift in high-impedance sensor inputs and enables use in always-on monitoring circuits. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load dump (ISO 16750-2) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12V rail and chassis ground to clamp transients before they reach PMICs or microcontrollers. Use Value: With 10V VWM and 17.0V VC, SA10A maintains >2V margin below 12V system max while limiting clamping to safe levels for 3.3V/5V logic supplies. |
Use Scenario: 4–20mA current-loop sensors in factory automation subject to EFT (IEC 61000-4-4) and cable coupling. IC Role / Device Role / Timing Role: TVS mounted across sensor input terminals to absorb fast bursts without affecting loop accuracy. Use Value: Sub-1μA leakage preserves mA-loop integrity; <1.0ps response prevents EFT-induced latch-up in analog front-end amplifiers. |
| DC Input Stage Surge Suppression | LED Driver Transient Protection |
Use Scenario: AC/DC adapter outputs feeding LED drivers or motor controllers in outdoor lighting. IC Role / Device Role / Timing Role: Primary-line TVS on DC output to absorb induced surges from nearby lightning strikes or switching noise. Use Value: 500W PPK rating handles 10/1000μs surges up to 4kV (2Ω source), while DO-15 package allows through-hole mounting on high-current PCB traces. |
Use Scenario: Constant-current LED strings in streetlights subjected to inductive kickback from relay-controlled dimming circuits. IC Role / Device Role / Timing Role: TVS placed across LED anode-cathode to clamp reverse-voltage spikes generated during MOSFET turn-off. Use Value: 17.0V clamping protects LEDs rated for ≤20V reverse, preventing catastrophic failure; AEC-Q101 grade ensures long-term reliability in thermal cycling environments. |
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 SMAJ10A | Same DO-214AC package, 10V VWM, 11.1–12.3V VBR, but 17.0V VC @ 28.6A; slightly lower IPPM (28.6A vs. 30A). | Identical clamping performance; differs in JEDEC-compliant marking and traceability documentation. | Select SMAJ10A if requiring UL/cUL recognition or tighter lot traceability for medical-grade designs. |
| ON Semiconductor 1.5SMC10A | DO-214AB package (larger than DO-15), same 10V VWM and 11.1–12.3V VBR, but 17.0V VC @ 29.4A; higher thermal mass. | Better power derating above 75°C due to larger package; not drop-in compatible due to footprint mismatch. | Choose 1.5SMC10A for high-temperature ambient (>85°C) or where board space permits larger SMC footprint. |
Compared with SMAJ10A and 1.5SMC10A, the SA10A offers identical electrical clamping and leakage specs in a smaller DO-15 package, enabling higher component density and lower assembly cost-ideal for space-constrained automotive modules and industrial PCBs where thermal management is handled via copper pour.
Availability
SA10A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and DC input stage surge suppression requiring stable component supply and AEC-Q101 compliance.
Supply support for SA10A 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, with global distribution and AEC-Q101 certification capability.
The SA Series was designed specifically for high-reliability transient suppression in automotive and industrial systems, emphasizing tight VBR tolerance, low clamping ratio, and robust surge endurance in compact axial packages.
FAQ
What is the polarity configuration of the SA10A?
The SA10A is a unidirectional TVS diode with cathode indicated by a band-marked end. It conducts in reverse bias during overvoltage events and blocks forward current up to 3.5V at 35A. This configuration makes it suitable for protecting positive-rail circuits where ground-referenced clamping is required, unlike bidirectional variants (e.g., SA10CA) that protect both polarities.
Does the SA10A meet AEC-Q101 requirements?
Yes, the SA10A is AEC-Q101 qualified - confirmed in the SA Series datasheet (Version L2105). It undergoes stress testing including temperature cycling, high-temperature operating life, and mechanical shock per AEC-Q101 Rev D, making it suitable for automotive under-hood and body-control module applications.
What is the maximum clamping voltage of the SA10A at rated surge current?
The SA10A has a maximum clamping voltage (VC) of 17.0 V at 30 A peak pulse current (10/1000μs waveform), as specified in the "Maximum Ratings and Electrical Characteristics" table. This value defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Can the SA10A be used in bidirectional protection applications?
No - the SA10A is strictly unidirectional. For bidirectional protection, Taiwan Semiconductor offers the SA10CA variant (not SA10A), which features symmetrical breakdown in both directions. Using SA10A in bidirectional configurations risks failure during positive transients on the anode side.
What is the thermal derating behavior of the SA10A above 25°C ambient?
The SA10A's peak pulse power (500W) is derated linearly above TA = 25°C per Figure 2 in the datasheet, reaching zero at TJ = 175°C. At 75°C ambient, steady-state power dissipation is limited to 3W with 9.5mm lead lengths mounted on 10×10 mm copper pads - critical for sustained surge duty cycles.
SA10A 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA10A FAQ
1.How can I place an order for SA10A through Aetrix?
Please submit a Request for Quotation (RFQ) for SA10A 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 SA10A reliable?
The price and inventory of SA10A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA10A is usually 5 days.
3.What payment methods are accepted for SA10A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA10A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA10A?
SA10A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA10A 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 SA10A?
For technical support, including SA10A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA10A requirements.
6.How does Aetrix verify that SA10A is sourced from the original manufacturer or authorized distributors?
All SA10A 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 SA10A meets industry standards.
7.What is the process for return or replacement of SA10A?
All SA10A units undergo pre-shipment inspection (PSI). If there is an issue with SA10A, 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 SA10A part is unused and in its original packaging.
Return procedure for SA10A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SA10A 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…
