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Taiwan Semiconductor Corporation SA13
- Part No.:
- SA13
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA13.pdf
- Description:
- 500W, 16V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,938
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Product details
Overview
SA13 from Taiwan Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, designed for high-energy surge protection in automotive and industrial power rails. It features a 13 V working stand-off voltage (VWM), 14.4–17.6 V breakdown voltage (VBR) at 1 mA test current, 22.0 A peak pulse current (IPPM), 23.8 V clamping voltage (VC) at IPPM, and 500 W peak pulse power rating at 10/1000 μs waveform.
For engineers reviewing the SA13 datasheet, SA13 pinout, SA13 application, or SA13 equivalent, this device is selected for robust ESD and lightning-induced transient suppression in 12 V automotive subsystems, DC power input stages, and industrial sensor interfaces where low clamping voltage and fast response (<1.0 ps) are critical to protect downstream ICs.
Technical Context
The SA13 operates as a unidirectional avalanche diode with silicon planar junction construction, triggering when reverse voltage exceeds its specified VBR range. Its clamping behavior is defined by a tightly controlled VC of 23.8 V at 22.0 A, enabling reliable protection of 15 V-rated circuits without overstress.
It supports operation across –55 °C to +175 °C junction temperature, complies with AEC-Q101 (when ordered with 'H' suffix), and exhibits <1 μA reverse leakage at 13 V - ensuring minimal standby power loss in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin below system rail (e.g., 12 V nominal bus) |
| VBR @ IT=1 mA | 14.4–17.6 V - Breakdown threshold range; ensures consistent turn-on across production lot and temperature |
| VC @ IPPM | 23.8 V - Clamped voltage during 22.0 A 10/1000 μs surge; limits stress on protected IC's absolute maximum rating |
| PPK | 500 W - Peak surge power handling per single non-repetitive event; meets IEC 61000-4-5 Level 4 requirements |
| IR @ VWM | <1 μA - Ultra-low leakage at rated stand-off voltage; avoids signal integrity degradation or battery drain in low-power nodes |
| TJ max | +175 °C - Extended junction temperature rating enables under-hood automotive deployment without derating |
| 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, molded epoxy case with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance. Weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / surge return path | Connected to ground or low-impedance return plane; carries full surge current during clamping |
| Cathode | Protected circuit side / high-side connection | Connected to the line being protected (e.g., 12 V supply rail); voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Fast response time | <1.0 ps from 0 V to VBR - Enables suppression before transient energy couples into sensitive analog or digital inputs |
| Low clamping ratio (VC/VBR) | ~1.43 (23.8 V / 16.6 V typ.) - Minimizes overvoltage overshoot during surge events compared to competing TVS devices |
| AEC-Q101 qualification option | Available with 'H' suffix (e.g., SA13H) - Validated for automotive under-hood applications including engine control, body electronics, and ADAS power domains |
| RoHS & halogen-free | Compliant per IEC 61249-2-21 - Supports environmentally regulated industrial and automotive manufacturing programs |
| High surge current capability | 22.0 A IPPM at 10/1000 μs - Sustains multiple high-energy transients without parametric shift or failure |
Applications
| Automotive Power Input Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary front-end TVS clamp placed between fuse and input filter capacitor. Use Value: Limits transient voltage to ≤23.8 V during 22 A surges, preventing damage to LDOs, CAN transceivers, and microcontrollers rated for 28 V absolute max. |
Use Scenario: 4–20 mA loop-powered pressure/temperature sensors in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; SA13 used unidirectionally to shunt induced EFT bursts on supply lines. Use Value: Sub-μA leakage preserves loop accuracy; 175 °C TJ max ensures reliability near hot PLC chassis surfaces. |
| DC-DC Converter Input Stage | Lighting Control Module (LCM) Protection |
Use Scenario: 24 V input to buck converter powering LED drivers in commercial lighting fixtures. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed upstream of input bulk capacitor and EMI filter. Use Value: 500 W PPK rating absorbs repetitive switching noise and nearby lightning-induced surges without thermal runaway. |
Use Scenario: PWM-controlled headlight modules subject to ISO 16750-2 supply transients and ESD contact discharge. IC Role / Device Role / Timing Role: Unidirectional TVS on main 12 V supply rail, adjacent to MOSFET gate driver ICs. Use Value: 23.8 V clamping prevents gate oxide rupture in logic-level N-channel FETs while maintaining <1 μA quiescent current. |
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 SMAJ13A | Same DO-214AC package (SMA), bidirectional variant; VBR = 14.4–15.9 V, VC = 21.5 V at 23.1 A | Bidirectional conduction - suitable for AC-coupled or floating signal lines; less optimal for DC rail clamping where unidirectional leakage matters | Select SMAJ13A only if bidirectional protection is required; otherwise SA13 offers lower IR and automotive qualification path via 'H' suffix |
| ON Semiconductor 1.5KE13A | DO-201AD package; higher PPK (1500 W), but larger footprint and 25.5 V VC at 39.5 A | Higher clamping voltage increases risk to 15 V-rated ICs; suited for higher-energy, lower-speed transients (e.g., AC mains) | Choose 1.5KE13A only when surge energy exceeds 500 W; SA13 provides superior voltage margin for 12 V embedded systems |
Compared with SMAJ13A and 1.5KE13A, the SA13 delivers tighter VBR tolerance, lower clamping voltage, and AEC-Q101 readiness in a compact DO-15 package - making it preferred for space-constrained, automotive-grade 12 V rail protection where leakage and thermal robustness are design-critical.
Availability
SA13 is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface protection, and DC-DC converter input stage applications requiring stable component supply and long-term lifecycle support.
Supply support for SA13 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 consumer markets.
The SA Series was developed specifically for high-reliability transient suppression in harsh-environment DC power systems, emphasizing low clamping voltage, AEC-Q101 compliance, and robust surge endurance in standard axial packages.
FAQ
What is the maximum clamping voltage of the SA13 under surge conditions?
The SA13 has a maximum clamping voltage (VC) of 23.8 V when subjected to its rated peak pulse current of 22.0 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuitry sees no more than 23.8 V during standardized surge events - critical for safeguarding 15 V-tolerant components. The SA13 achieves this while maintaining low leakage and high temperature resilience.
Is the SA13 suitable for automotive applications?
Yes - the SA13 is qualified to AEC-Q101 when ordered with the 'H' suffix (e.g., SA13H), validating its performance across –55 °C to +175 °C junction temperature, mechanical shock/vibration, and humidity testing. Its 13 V VWM and 23.8 V VC align with 12 V automotive system margins, and its DO-15 package supports manual and automated assembly in ECU production. The base SA13 (non-H) is not AEC-Q101 certified.
How does the SA13 differ from the SA13A variant?
The SA13A has a tighter VBR range (14.4–15.9 V vs. 14.4–17.6 V for SA13) and slightly lower clamping voltage (21.5 V vs. 23.8 V), achieved through enhanced process control. Both share identical VWM (13 V), IR (<1 μA), package (DO-15), and PPK (500 W). SA13A is preferred where precise clamping threshold is needed; SA13 offers broader process margin for cost-sensitive industrial use. Neither is pin-compatible with bidirectional variants.
What is the reverse leakage current specification for the SA13 at its working voltage?
The SA13 specifies a maximum reverse leakage current (IR) of 1 μA when biased at its 13 V working stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage ensures negligible impact on battery-powered or high-impedance sensor circuits. Leakage remains well below 5 μA up to +125 °C, supporting reliable operation in thermally demanding environments without compromising system standby current budgets.
Can the SA13 be used in bidirectional signal line protection?
No - the SA13 is a unidirectional TVS diode, marked with a cathode band and intended for DC rail protection where polarity is fixed. For bidirectional signal line protection (e.g., RS-485, CAN, USB), select the SA13CA or SA13A variant, which are explicitly designed for symmetrical clamping in both polarities. Using SA13 on AC or floating lines risks forward conduction during negative half-cycles and invalidates its specified parameters.
SA13 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:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 22A
- 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)
SA13 FAQ
1.How can I place an order for SA13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA13 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 SA13 reliable?
The price and inventory of SA13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA13 is usually 5 days.
3.What payment methods are accepted for SA13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA13?
SA13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA13 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 SA13?
For technical support, including SA13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA13 requirements.
6.How does Aetrix verify that SA13 is sourced from the original manufacturer or authorized distributors?
All SA13 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 SA13 meets industry standards.
7.What is the process for return or replacement of SA13?
All SA13 units undergo pre-shipment inspection (PSI). If there is an issue with SA13, 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 SA13 part is unused and in its original packaging.
Return procedure for SA13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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