onsemi NS6A13AT3G
- Part No.:
- NS6A13AT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
NS6A13AT3G.pdf
- Description:
- TVS DIODE 13VWM 21.5VC 6TDFN
- Quantity:
- Payment:

- Shipping:

Inventory:900,000
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Product details
Overview
NS6A13AT3G from onsemi is a unidirectional 600 W peak power Zener transient voltage suppressor (TVS) diode designed to protect voltage-sensitive components against high-energy transients. It features a 13 V peak reverse working voltage, 21.5 V clamping voltage at 27.9 A peak pulse current, and Class 3 (>16 kV) HBM ESD rating. It is commonly deployed in automotive electronics and industrial power supplies for robust overvoltage protection.
For engineers reviewing the NS6A13AT3G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping performance under 10/1000 µs surge, low zener impedance, fast response time, and SMA package compatibility with automated SMT assembly.
Technical Context
The NS6A13AT3G operates as a unidirectional Zener-based TVS diode, leveraging avalanche breakdown to clamp transient voltages above its 14.4–15.9 V breakdown range. Its 21.5 V clamping voltage at 27.9 A ensures predictable voltage limiting during 600 W, 10 × 1000 µs surges.
It exhibits low dynamic impedance and fast response (<1 ns), enabling effective suppression of ESD and lightning-induced transients. The device is rated for operation from −65 °C to +150 °C and supports reflow soldering at 260 °C for 10 seconds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Working Voltage | 13 V - sets maximum continuous DC or peak AC operating voltage before clamping initiates |
| Clamping Voltage @ IPP | 21.5 V at 27.9 A - defines worst-case voltage seen by protected circuit during full 600 W surge |
| Breakdown Voltage | 14.4–15.9 V @ 1 mA - specifies avalanche onset range for reliable turn-on margin |
| Peak Pulse Power | 600 W (10 × 1000 µs) - quantifies single-event surge energy handling capability |
| ESD Rating (HBM) | Class 3 (>16 kV) - meets IEC 61000-4-2 Level 4 for system-level ESD immunity |
| Junction-to-Ambient RJA | 250 °C/W - determines thermal rise under sustained leakage or low-duty-cycle pulses |
Pinout & Package
NS6A13AT3G is housed in an industry-standard SMA (DO-214AC) surface-mount plastic package (Case 403D-02), featuring a cathode band polarity indicator and modified L-bend leads for enhanced pad adhesion.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane during clamping event |
| Cathode | Transient voltage sensing node | Connected to protected line; voltage referenced to anode during avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables precise protection of positive-polarity signal/power lines without reverse conduction leakage |
| Low zener impedance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for downstream ICs |
| Fast response time | Sub-nanosecond turn-on ensures clamping activation before sensitive components experience overstress |
| Pb-free SMA package | Complies with RoHS and JEDEC J-STD-020 reflow standards; compatible with standard SMT processes |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery input and DC-DC converter input. Use Value: Limits transient voltage to ≤21.5 V, preventing damage to 36 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding digital input channels in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V sensor interface lines. Use Value: Absorbs >600 W surges while maintaining <1 µA leakage at 13 V, preserving signal integrity. |
| Medical Equipment Power Entry | Communication System DC Feeds |
Use Scenario: Shielding auxiliary 5 V/12 V power inputs in diagnostic imaging devices from ESD and switching noise. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated DC-DC output rails. Use Value: Provides >16 kV HBM ESD immunity without affecting steady-state regulation or efficiency. | Use Scenario: Protecting PoE-powered Ethernet switches and base station RF modules from induced lightning surges. IC Role / Device Role / Timing Role: Line-side TVS on 48 V DC feed before DC-DC conversion and signal conditioning. Use Value: Clamps 10/1000 µs transients to 21.5 V with minimal capacitance (1160 pF), avoiding signal distortion. |
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 SMA package; 13 V VRWM, but lower 400 W PPK rating and higher 23.0 V VC @ 24.4 A | Less robust for high-energy 600 W surges; suitable only where lower surge risk is validated | Select when cost sensitivity outweighs peak surge margin requirements |
| SMCJ13A | Larger SMC (DO-214AB) package; same 13 V VRWM, 600 W PPK, but 21.5 V VC @ 27.9 A and higher thermal mass | Requires PCB layout change; preferred for higher ambient temperature or repeated surge exposure | Choose when board space allows and improved thermal derating is needed |
Compared with SMAJ13A and SMCJ13A, the NS6A13AT3G delivers identical clamping performance in a compact SMA footprint with verified 600 W surge capability-making it optimal for space-constrained, high-reliability 12–13 V rail protection where lead-free compliance and JEDEC-standard reflow are required.
Availability
NS6A13AT3G is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, and medical equipment power entry requiring stable component supply and RoHS-compliant sourcing.
Supply support for NS6A13AT3G 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
onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensors, and logic solutions for automotive, industrial, and cloud infrastructure markets.
The NS6A13AT3G belongs to onsemi's transient voltage suppressor diode product line, engineered specifically for high-reliability, high-surge industrial and automotive applications demanding precise clamping and Pb-free compliance.
FAQ
What is the clamping voltage of the NS6A13AT3G and how is it measured?
The NS6A13AT3G has a maximum clamping voltage (VC) of 21.5 V at a peak pulse current (IPP) of 27.9 A, tested using the standardized 10 × 1000 µs surge waveform. This value represents the highest voltage the device allows across its terminals during a full 600 W transient event, ensuring downstream circuits remain within safe operating limits. The NS6A13AT3G achieves this with low dynamic impedance and fast avalanche response.
Is the NS6A13AT3G unidirectional or bidirectional, and why does that matter for circuit design?
The NS6A13AT3G is a unidirectional TVS diode, meaning it conducts only when the cathode is positive relative to the anode-ideal for protecting positive DC rails like 12 V automotive systems. This prevents unwanted conduction during negative transients or AC reversals, unlike bidirectional devices. For proper operation, the NS6A13AT3G must be oriented with the cathode band toward the protected line and anode to ground.
What package type does the NS6A13AT3G use, and is it compatible with standard SMT assembly?
The NS6A13AT3G uses the SMA (DO-214AC) surface-mount package (Case 403D-02), with Pb-free terminations and a modified L-bend lead form optimized for solder joint reliability. It is fully compatible with standard reflow profiles, including JEDEC J-STD-020, and supports peak temperatures up to 260 °C for 10 seconds-making the NS6A13AT3G suitable for high-volume automated assembly without special process adjustments.
How does the NS6A13AT3G compare to standard Zener diodes used for voltage regulation?
Unlike general-purpose Zener diodes optimized for steady-state regulation, the NS6A13AT3G is engineered specifically for transient suppression: it handles 600 W short-duration surges, features sub-nanosecond response, and maintains tight clamping tolerance under high-current stress. While both use Zener/avalanche physics, the NS6A13AT3G's structure prioritizes surge energy absorption-not DC regulation accuracy-making it unsuitable as a replacement for voltage reference Zeners.
Does the NS6A13AT3G meet international ESD and surge immunity standards?
Yes, the NS6A13AT3G is rated Class 3 (>16 kV) per Human Body Model (HBM) and Class 4 (>8 kV) per IEC 61000−4−2 for system-level ESD immunity. Its 600 W peak pulse power rating aligns with IEC 61000-4-5 (surge immunity) test levels for industrial environments. These certifications are verified per onsemi's published characterization data, confirming the NS6A13AT3G's suitability for designs targeting CE, UL, and automotive OEM compliance.
NS6A13AT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-214AC, SMA
- Series:
- -
- Packaging:
- Bulk
- 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):
- 27.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- 1160pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
NS6A13AT3G FAQ
1.How can I place an order for NS6A13AT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for NS6A13AT3G 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 NS6A13AT3G reliable?
The price and inventory of NS6A13AT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NS6A13AT3G is usually 5 days.
3.What payment methods are accepted for NS6A13AT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NS6A13AT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NS6A13AT3G?
NS6A13AT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NS6A13AT3G 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 NS6A13AT3G?
For technical support, including NS6A13AT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NS6A13AT3G requirements.
6.How does Aetrix verify that NS6A13AT3G is sourced from the original manufacturer or authorized distributors?
All NS6A13AT3G 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 NS6A13AT3G meets industry standards.
7.What is the process for return or replacement of NS6A13AT3G?
All NS6A13AT3G units undergo pre-shipment inspection (PSI). If there is an issue with NS6A13AT3G, 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 NS6A13AT3G part is unused and in its original packaging.
Return procedure for NS6A13AT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NS6A13AT3G Tags

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ESD9B5.0ST5G
onsemi

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DESD3V3E1BL-7B
Diodes Incorporated

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ESD5Z3.3T1G
onsemi

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D5V0H1B2LP-7B
Diodes Incorporated

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D5V0P1B2LP-7B
Diodes Incorporated

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DESD5V0U1BA-7
Diodes Incorporated

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ESD5Z5.0T1G
onsemi

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DESD5V0U1BB-7
Diodes Incorporated

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D12V0L1B2LP-7B
Diodes Incorporated

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PESD2V0Y1BSFYL
Nexperia USA Inc.

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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage

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D5V0L1B2WS-7
Diodes Incorporated
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