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Taiwan Semiconductor Corporation SA13CAH
- Part No.:
- SA13CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13CAH.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,997
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Product details
Overview
SA13CAH from Taiwan Semiconductor is a unidirectional AEC-Q101-qualified transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for automotive and industrial surge protection. It features 500W peak pulse power (10/1000μs), 13V working stand-off voltage (VWM), 14.4–17.6V breakdown voltage (VBR @ 1mA), and clamps transients to ≤23.8V at 22A peak pulse current.
For engineers reviewing the SA13CAH datasheet, SA13CAH pinout, SA13CAH application, or SA13CAH equivalent, this page delivers verified electrical parameters, polarity-aware packaging details, automotive-grade reliability data, and real-world ESD/inductive-spike protection use cases - all confirmed against Taiwan Semiconductor's L2105 specification release.
Technical Context
The SA13CAH operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast clamping of high-energy transients in DC power rails and signal lines. Its 1.0ps response time (0V to VBR) and <1μA reverse leakage above 10V ensure minimal standby impact while delivering robust protection against ISO 7637-2 pulses and IEC 61000-4-5 surges.
Rated for TJ = –55°C to +175°C operation and qualified per AEC-Q101 Rev D, it supports under-hood automotive environments. The device uses silicon planar junction technology with pure tin-plated leads compliant with J-STD-002 and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous DC or RMS voltage the device blocks without clamping; defines safe operating margin below breakdown. |
| VBR min/max | 14.4 V / 17.6 V @ 1 mA - Verified avalanche onset range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 23.8 V @ 22 A - Clamped voltage during 10/1000μs surge; determines maximum stress imposed on downstream circuitry. |
| PPK | 500 W - Peak pulse power handling per single non-repetitive 10/1000μs waveform; enables protection against severe load-dump events. |
| IR @ VWM | <1 μA - Reverse leakage at rated stand-off voltage; guarantees negligible quiescent current draw in battery-powered systems. |
| TJ max | +175 °C - Maximum junction temperature rating; supports placement near heat sources in engine control units and power modules. |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with 0.400g mass; compatible with through-hole reflow and wave soldering per J-STD-002. |
Pinout & Package
SA13CAH is a two-terminal unidirectional TVS diode housed in a DO-204AC (DO-15) molded plastic case with axial leads. Polarity is marked by a cathode band; the banded end connects to system ground or low-side return path during normal operation. Lead finish is pure tin, RoHS-compliant and halogen-free per IEC 61249-2-21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Input/line side terminal | Connects to protected line (e.g., 12V rail); conducts surge current toward cathode when voltage exceeds VBR. |
| Cathode (banded end) | Ground/reference terminal | Connects to local ground plane or chassis; establishes reference for clamping action and defines unidirectional conduction path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control, body electronics, and ADAS sensors. |
| 500W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 5a (load dump) up to 120V/500ms without degradation. |
| 1.0ps response time (0V → VBR) | Clamps before transient energy couples into sensitive IC inputs, protecting CAN/LIN transceivers and microcontrollers. |
| UL 94V-0 molding compound | Self-extinguishing encapsulation meets automotive flammability requirements for PCB-mounted components. |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term reliability in automotive ECUs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery feed line in engine control module exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed upstream of LDO regulators and MCU power pins. Use Value: Limits voltage excursion to ≤23.8V during 500W surges, preventing latch-up or oxide breakdown in 3.3V/5V logic supplies. |
Use Scenario: 4–20mA current loop input of PLC analog input module subject to field wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on signal conditioning front-end before op-amp buffer stage. Use Value: Sub-1μA leakage preserves loop accuracy; 22A peak current handling absorbs >4kV contact ESD per IEC 61000-4-2. |
| LED Lighting Driver Protection | Automotive LIN Bus Line Protection |
Use Scenario: Constant-current LED driver output in headlamp assembly subjected to alternator ripple and relay switching noise. IC Role / Device Role / Timing Role: Output-side TVS suppressing inductive spikes from driver MOSFET turn-off and relay coil de-energization. Use Value: 175°C TJ rating allows mounting directly on heatsink; clamping at 23.8V prevents overvoltage damage to LED strings rated at 20–24V. |
Use Scenario: LIN physical layer bus line in door module exposed to cable discharge events and board-level ESD. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used with series resistor) on LIN TX/RX node. Use Value: 1.0ps response ensures clamping before LIN transceiver input threshold is exceeded; 13V VWM avoids false triggering during normal 12V bus operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Same DO-214AC package; 13V VWM, but lower PPK = 400W; no AEC-Q101 qualification. | Not suitable for automotive under-hood deployment; limited to commercial/industrial environments. | Select SMAJ13A only if AEC-Q101 compliance is not required and surge energy remains below 400W. |
| P6SMB13A | DO-214AA package; identical VWM/VBR specs and 600W rating; AEC-Q101 qualified variant available (P6SMB13AH). | Higher surge rating allows margin for extended load-dump duration; same footprint compatibility requires layout adjustment. | Choose P6SMB13AH when higher peak power margin or alternate sourcing diversity is needed; verify PCB pad geometry matches DO-214AA. |
Compared with SMAJ13A, SA13CAH provides certified automotive reliability and 25% higher surge power; versus P6SMB13AH, it offers smaller DO-15 footprint and proven thermal performance in constrained engine-bay layouts - making SA13CAH optimal for space-constrained AEC-Q101 designs requiring 500W clamping.
Availability
SA13CAH is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, LED lighting driver output clamping, and LIN bus line surge suppression requiring stable component supply across production lifecycles.
Supply support for SA13CAH 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 thyristors, with global distribution and AEC-Q101 validation capability.
The SA Series was developed specifically for automotive and industrial transient suppression, emphasizing high surge robustness, tight parametric tolerances, and extended temperature operation - targeting engine control, body electronics, and factory automation systems.
FAQ
What is the polarity configuration of SA13CAH?
SA13CAH is a unidirectional TVS diode with cathode band marking on the DO-204AC (DO-15) package. The banded end must be connected to ground or the lower-potential node; the unbanded end connects to the protected line. This configuration enables avalanche conduction only during positive transients relative to ground, minimizing leakage in DC systems.
Does SA13CAH meet AEC-Q101 requirements?
Yes, SA13CAH is explicitly AEC-Q101 qualified per Revision D, as confirmed in Taiwan Semiconductor's SA Series documentation (Version L2105). This includes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validating its suitability for automotive under-hood applications.
What is the maximum clamping voltage of SA13CAH under surge conditions?
The maximum clamping voltage (VC) of SA13CAH is 23.8 V at 22 A peak pulse current (IPPM), measured using the standard 10/1000μs double-exponential waveform. This value represents the highest voltage seen across the device during worst-case surge events and defines the upper voltage limit imposed on protected circuitry.
Can SA13CAH be used in bidirectional protection circuits?
No, SA13CAH is strictly unidirectional and must not be used for bidirectional surge suppression. For bipolar applications, Taiwan Semiconductor specifies CA-suffix variants (e.g., SA13CA) - but SA13CAH is designated for unidirectional use only, as indicated by its "H" suffix (AEC-Q101) and absence of symmetrical VBR specifications in its datasheet row.
What is the junction temperature range for SA13CAH?
SA13CAH is rated for an operating junction temperature range of –55°C to +175°C, enabling reliable operation in extreme environments such as engine compartments, industrial motor drives, and outdoor lighting systems. This rating is validated per AEC-Q101 thermal test conditions and supported by UL 94V-0 flammability-compliant molding compound.
SA13CAH 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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 24A
- 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)
SA13CAH FAQ
1.How can I place an order for SA13CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13CAH 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 SA13CAH reliable?
The price and inventory of SA13CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13CAH is usually 5 days.
3.What payment methods are accepted for SA13CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13CAH?
SA13CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13CAH 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 SA13CAH?
For technical support, including SA13CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13CAH requirements.
6.How does Aetrix verify that SA13CAH is sourced from the original manufacturer or authorized distributors?
All SA13CAH 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 SA13CAH meets industry standards.
7.What is the process for return or replacement of SA13CAH?
All SA13CAH units undergo pre-shipment inspection (PSI). If there is an issue with SA13CAH, 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 SA13CAH part is unused and in its original packaging.
Return procedure for SA13CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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