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Taiwan Semiconductor Corporation SA13AH
- Part No.:
- SA13AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13AH.pdf
- Description:
- TVS DIODE 13VWM 21.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,533
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Product details
Overview
SA13AH from Taiwan Semiconductor is a unidirectional AEC-Q101-qualified transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 500W peak pulse power at 10/1000μs, with 13V working stand-off voltage (VWM), 14.4–17.6V breakdown voltage (VBR @ 1mA), and 22A maximum peak pulse current (IPPM). It protects automotive power electronics against ESD, EFT, and inductive switching transients.
For engineers reviewing the SA13AH datasheet, SA13AH pinout, SA13AH application, or SA13AH equivalent, this page delivers verified electrical parameters, clamping behavior under surge conditions, thermal derating curves, AEC-Q101 qualification status, and direct alternatives for automotive-grade circuit protection design.
Technical Context
The SA13AH operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its VBR range (14.4–17.6V) to clamp transients to ≤23.8V at 22A IPPM. Its low leakage (<1μA @ 13V) ensures minimal standby power loss in always-on automotive systems.
Designed for AEC-Q101 compliance, it supports junction temperatures from –55°C to +175°C and withstands 70A non-repetitive forward surge (8.3ms half-sine), making it suitable for 12V/24V vehicle subsystems including body control modules and lighting drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before clamping begins; matches 12V automotive nominal rail with margin. |
| VBR min/max | 14.4 / 17.6 V @ 1 mA - Confirmed breakdown threshold range; defines minimum overvoltage immunity level. |
| VC @ IPPM | 23.8 V @ 22 A - Clamped voltage during 500W 10/1000μs surge; determines protected IC's maximum stress exposure. |
| PPK | 500 W - Peak pulse power rating per IEC 61000-4-5; validates robustness against lightning-induced surges. |
| TJ max | +175 °C - Maximum junction temperature; enables placement near hot engine-control components without thermal derating. |
| IR @ VWM | <1 μA - Reverse leakage at 13V; ensures negligible current draw in battery-sensitive always-on circuits. |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking; leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / ground reference | Connected to system ground or low-side return path; establishes reference for unidirectional clamping. |
| Cathode | Reverse voltage input / protected line connection | Connected to protected signal/power line (e.g., LIN bus, sensor supply); conducts during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications per stress test requirements including temperature cycling, HTRB, and ESD. |
| 500W surge capability | Withstands 10/1000μs waveform surges up to 500W without degradation-meets ISO 7637-2 Pulse 1/2/3a and IEC 61000-4-5 Level 3. |
| Fast response time | <1.0 ps from 0 V to VBR-enables protection of high-speed CAN/LIN transceivers before transient energy couples into IC pins. |
| Low clamping ratio | VC/VBR ≈ 1.4–1.7-minimizes voltage overshoot across protected ICs, reducing risk of latch-up or oxide damage. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU-supports automotive OEM environmental compliance programs. |
Applications
| Automotive Body Control Module (BCM) | LED Headlamp Driver Protection |
|---|---|
Use Scenario: Protects microcontroller I/O and power MOSFET gate drivers from load-dump and inductive kickback in BCM power distribution networks. IC Role / Device Role: Unidirectional TVS placed between 12V supply rail and ground, clamping transients before they reach downstream regulators and logic. Use Value: Limits voltage excursion to ≤23.8V during 500W surges, preventing damage to 3.3V/5V logic and enabling reliable operation per ISO 16750-2. | Use Scenario: Shields constant-current LED driver ICs from ESD events during assembly and EFT noise during vehicle operation. IC Role / Device Role: Mounted at driver output terminals to absorb fast-rising transients from relay switching and cable coupling. Use Value: Sub-1ps response ensures clamping initiates before 100ns ESD pulses propagate into sensitive analog current-sense circuitry. |
| Automotive LIN Bus Node | 12V Starter Motor Interface Circuit |
Use Scenario: Guards LIN transceiver inputs against coupled transients from adjacent high-current wiring in door modules or seat controls. IC Role / Device Role: Placed on LIN data line with cathode to line and anode to ground, providing bidirectional-like protection via unidirectional clamping referenced to ground. Use Value: Low VWM (13V) avoids interfering with LIN's 12V dominant state while clamping >14.4V faults to safe levels. | Use Scenario: Protects interface logic and isolation components in starter solenoid control circuits exposed to severe load-dump events. IC Role / Device Role: Connected across solenoid coil supply and ground to shunt inductive energy during de-energization. Use Value: Withstands 70A 8.3ms forward surge and maintains integrity after repeated 12V–24V load-dump cycles per ISO 16750-2. |
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; lower PPK (400W); VBR 14.4–15.9V; higher IR (≤5μA @ 13V) | Limited to non-AEC-Q101 industrial designs; not qualified for automotive underhood use. | Select SMAJ13A only if AEC-Q101 is not required and 400W surge rating suffices. |
| P6SMB13AH | DO-214AA package; same AEC-Q101 qualification; identical VWM/VBR/VC specs; slightly lower IPPM (21.5A vs. 22A) | Compatible in space-constrained PCB layouts where surface-mount is preferred over axial DO-15. | Choose P6SMB13AH for SMT assembly lines or when board real estate favors SMB over DO-15. |
Compared with SMAJ13A and P6SMB13AH, SA13AH uniquely combines AEC-Q101 qualification, axial DO-15 form factor, and 500W surge rating-making it optimal for legacy automotive harness interfaces requiring through-hole mounting and full ISO 16750-2 compliance.
Availability
SA13AH is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting systems, and LIN/CAN node protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SA13AH 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 automotive-qualified components.
The SA Series was developed specifically for AEC-Q101-compliant transient suppression in 12V/24V automotive subsystems-including body control, lighting, and infotainment-balancing high surge robustness with low leakage and tight parametric tolerances.
FAQ
What is the AEC-Q101 qualification status of SA13AH?
The SA13AH is explicitly AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's ordering code suffix "H" and documentation in Version L2105. This qualification covers temperature cycling, high-temperature reverse bias (HTRB), and ESD testing per AEC-Q101 Rev D, validating its suitability for automotive underhood and chassis applications where reliability under thermal and electrical stress is critical. SA13AH meets all stress test requirements without derating.
Does SA13AH support bidirectional transient suppression?
No, SA13AH is a unidirectional TVS diode, indicated by absence of "CA" or "C" suffix and specification of single-polarity VBR and VC parameters. It clamps only reverse-voltage transients applied to its cathode; forward conduction is limited to 3.5V at 35A. For bidirectional protection, SA13A or SA13CA variants must be used. SA13AH's design intentionally optimizes clamping speed and leakage for ground-referenced 12V rail protection.
What is the maximum clamping voltage of SA13AH under surge conditions?
The maximum clamping voltage (VC) of SA13AH is 23.8 V at 22 A peak pulse current (IPPM), measured under the standard 10/1000μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during a 500W transient event. The clamping ratio (VC/VBR) remains ≤1.7, ensuring predictable overvoltage limiting for downstream ICs.
Can SA13AH be used in place of SA13 or SA13A in existing designs?
SA13AH is not a drop-in replacement for SA13 or SA13A due to its AEC-Q101 qualification and tighter process controls-notably lower IR (<1μA vs. ≤5μA for SA13A) and guaranteed surge endurance. While electrically compatible in VWM/VBR/VC, SA13AH requires validation of mechanical mounting (DO-15 lead spacing) and thermal layout for automotive-grade reliability. SA13AH should only replace SA13/SA13A when AEC-Q101 compliance is mandated.
What is the junction-to-ambient thermal resistance (RθJA) of SA13AH?
Taiwan Semiconductor does not publish RθJA for SA13AH in the provided documentation. Thermal performance is specified via steady-state power dissipation (PD = 3 W at TL = 75°C with 9.5mm lead lengths on 10×10 mm copper pads) and junction temperature limits (–55°C to +175°C). For thermal modeling, designers must rely on PCB layout-dependent measurements or refer to DO-204AC generic thermal data from JEDEC standards, as RθJA varies significantly with copper area and airflow.
SA13AH 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):
- 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)
SA13AH FAQ
1.How can I place an order for SA13AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13AH 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 SA13AH reliable?
The price and inventory of SA13AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13AH is usually 5 days.
3.What payment methods are accepted for SA13AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13AH?
SA13AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13AH 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 SA13AH?
For technical support, including SA13AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13AH requirements.
6.How does Aetrix verify that SA13AH is sourced from the original manufacturer or authorized distributors?
All SA13AH 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 SA13AH meets industry standards.
7.What is the process for return or replacement of SA13AH?
All SA13AH units undergo pre-shipment inspection (PSI). If there is an issue with SA13AH, 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 SA13AH part is unused and in its original packaging.
Return procedure for SA13AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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