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onsemi NS6A5.0AT3G
- Part No.:
- NS6A5.0AT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
NS6A5.0AT3G.pdf
- Description:
- TVS DIODE 5VWM 9.2VC SMA
- Quantity:
- Payment:
- Shipping:
Inventory:2,250,000
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Product details
Overview
NS6A5.0AT3G from onsemi is a unidirectional 600 W peak power TVS diode with 5.0 V working peak reverse voltage, 9.2 V clamping voltage at 65.2 A peak pulse current, and 2700 pF typical junction capacitance. It protects voltage-sensitive circuits in hard disk drives, automotive ECUs, and industrial power supplies against ESD (≥16 kV HBM, ≥8 kV IEC 61000−4−2) and lightning-induced transients.
For engineers reviewing the NS6A5.0AT3G datasheet, pinout, applications, or equivalent options, key selection criteria include VRWM matching system DC bus voltage, VC margin relative to IC absolute maximum ratings, thermal derating above 75°C, and SMA package compatibility with IPC-7351B footprint requirements.
Technical Context
This unidirectional TVS operates as a voltage-clamped transient shunt across protected lines, triggering when transient voltage exceeds its 6.4–7.0 V breakdown range. Its low zener impedance and sub-nanosecond response time enable effective suppression of fast-rising ESD and surge events without affecting normal signal integrity.
The device uses a planar silicon junction structure optimized for high-energy absorption in a compact SMA package. Thermal resistance from junction-to-lead is 20°C/W, supporting sustained 1.5 W dissipation at 75°C ambient when mounted on a 1 in² copper pad per ON Semiconductor's recommended layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5.0 V - Matches 5 V logic rails and USB/PCIe supply domains without false triggering during normal operation |
| VC @ IPP | 9.2 V @ 65.2 A - Clamps transients below 10 V, ensuring safe margin below 12 V-rated downstream ICs |
| IPP | 65.2 A - Supports 600 W peak pulse (10 × 1000 µs waveform), sufficient for IEC 61000-4-5 Level 4 surges |
| Ctyp | 2700 pF @ 0 V, 1 MHz - Limits high-frequency signal distortion in data lines up to ~100 MHz |
| ESD Rating | ≥16 kV HBM, ≥8 kV IEC 61000−4−2 - Meets industrial and automotive ESD immunity requirements |
| TJ Range | −65°C to +150°C - Enables deployment in under-hood automotive and industrial environments |
Pinout & Package
Package: SMA (Case 403D-02), surface-mount, low-profile plastic package with modified L-bend leads and cathode polarity band. Dimensions: 4.06 mm × 2.0 mm × 2.2 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current return path | Connected to ground or low-impedance reference plane; must maintain short, low-inductance trace to handle 65 A surge currents |
| Cathode | Protected line connection | Connected directly to I/O line or power rail being protected; polarity band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| 600 W Peak Pulse Power | Enables single-device protection against IEC 61000-4-5 4 kV surge tests without cascaded staging |
| Low Zener Impedance | Minimizes voltage overshoot during fast transients, improving clamping precision for sensitive 3.3 V/5 V interfaces |
| Pb-Free Construction | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profile requirements |
| Fast Response Time | Sub-nanosecond turn-on ensures suppression before ESD pulses (<1 ns rise time) damage CMOS inputs |
Applications
| Hard Disk Drive Interface Protection | Automotive Body Control Module |
|---|---|
Use Scenario: Protects SATA and PATA data lines from ESD events during hot-plug insertion and board handling. IC Role / Device Role / Timing Role: Unidirectional TVS placed between differential pairs and chassis ground to clamp common-mode transients. Use Value: 9.2 V clamping voltage prevents latch-up in SerDes PHYs rated for 12 V absolute maximum, while 2700 pF avoids signal integrity degradation at 3 Gbps. | Use Scenario: Shields LIN bus transceivers and microcontroller GPIOs from load-dump and jump-start transients in vehicle door modules. IC Role / Device Role / Timing Role: Standoff device connected between LIN line and battery ground, triggered only during >5 V overvoltage events. Use Value: 65.2 A peak current rating withstands ISO 7637-2 Pulse 5a (12 V system, 100 V/100 ms), eliminating need for external series impedance. |
| Industrial PLC Digital Input Protection | Medical Imaging Power Supply Clamp |
Use Scenario: Guards 24 V DC digital input channels against induced surges from relay coil flyback and nearby motor switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side input terminals, upstream of optocoupler isolation barrier. Use Value: 5.0 V VRWM allows direct use on 24 V systems with series resistor limiting steady-state current, while 600 W rating handles repetitive 10×1000 µs transients. | Use Scenario: Suppresses switching noise and inductive kickback on ±15 V analog supply rails feeding CT scanner detector front-ends. IC Role / Device Role / Timing Role: Bidirectional clamping not required; unidirectional NS6A5.0AT3G used on positive rail with cathode to rail, anode to ground. Use Value: Low leakage (<10 µA at 5 V) prevents drift in precision 16-bit ADC references, while −65°C to +150°C rating supports sealed enclosure thermal cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | Same SMA package, identical 5.0 V VRWM and 9.2 V VC, but lower 400 W peak power rating | Suitable for lower-energy ESD-only protection; insufficient for IEC 61000-4-5 Level 3+ surges | Select NS6A5.0AT3G where 600 W surge margin is required for industrial or automotive qualification testing |
| 1.5SMC5.0A | Larger SMC package (7.1 mm × 6.2 mm), same electrical specs, higher thermal mass but requires more PCB area | Better suited for high-temperature ambient designs (>105°C) due to lower RJA (100°C/W vs. 250°C/W) | Choose NS6A5.0AT3G when board space is constrained and 250°C/W RJA meets thermal budget at 75°C ambient |
Compared with SMAJ5.0A and 1.5SMC5.0A, the NS6A5.0AT3G delivers higher surge robustness in the smallest footprint, making it optimal for space-constrained 5 V rail protection where both ESD and surge compliance are mandatory.
Availability
NS6A5.0AT3G is available at Aetrix Electronics and suitable for computer hard disk drives, automotive electronics, and industrial process controls requiring stable component supply and full RoHS compliance.
Supply support for NS6A5.0AT3G 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 supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NS6A5.0AT3G belongs to onsemi's SURMETIC® TVS diode family, engineered specifically for high-reliability transient suppression in harsh electromagnetic environments with validated performance across temperature and surge stress profiles.
FAQ
What is the maximum clamping voltage of the NS6A5.0AT3G under surge conditions?
The NS6A5.0AT3G has a maximum clamping voltage (VC) of 9.2 V at 65.2 A peak pulse current (IPP), measured using the standardized 10 × 1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The NS6A5.0AT3G maintains this clamping performance without degradation after repeated surges within its rated specifications.
Can the NS6A5.0AT3G be used on a 3.3 V power rail?
No - the NS6A5.0AT3G has a 5.0 V working peak reverse voltage (VRWM), meaning it begins conducting significantly above 5 V. Using it on a 3.3 V rail risks premature conduction during normal operation due to tolerance stack-up and temperature drift. For 3.3 V systems, select a TVS with VRWM ≤ 3.3 V (e.g., NS6A3.3AT3G). The NS6A5.0AT3G is strictly intended for 5 V nominal applications.
What is the thermal resistance of the NS6A5.0AT3G and how does it affect layout?
The NS6A5.0AT3G has a junction-to-ambient thermal resistance (RJA) of 250°C/W under standard FR-4 board conditions with ON Semiconductor's minimum recommended footprint. Layout must include adequate copper pour (≥1 in²) connected to the anode pad to achieve rated 0.5 W dissipation at 25°C ambient. Without enhanced thermal relief, power derating begins immediately above 25°C, impacting long-duration surge handling capability.
Does the NS6A5.0AT3G meet automotive qualification standards?
The NS6A5.0AT3G is AEC-Q200 qualified per onsemi's product documentation and supports automotive applications including body control modules and infotainment interfaces. Its −65°C to +150°C operating range, 8 kV IEC 61000−4−2 ESD rating, and robust surge capability align with ISO 16750-2 and ISO 7637-2 requirements. The NS6A5.0AT3G is commonly deployed in Tier-1 automotive subsystems where transient immunity is critical.
How is polarity identified on the NS6A5.0AT3G package?
The NS6A5.0AT3G uses a cathode polarity band - a visible molded stripe on the SMA package body adjacent to the cathode terminal. When viewed from the top with the marking "6QE" oriented upright, the banded end corresponds to the cathode, which connects to the protected line; the opposite end is the anode, connected to ground. This marking is consistent with JEDEC standard SMA orientation and matches the pinout diagram in the official onsemi datasheet NS6A5.0A/D.
NS6A5.0AT3G 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 2700pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMA
NS6A5.0AT3G FAQ
1.How can I place an order for NS6A5.0AT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for NS6A5.0AT3G 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 NS6A5.0AT3G reliable?
The price and inventory of NS6A5.0AT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NS6A5.0AT3G is usually 5 days.
3.What payment methods are accepted for NS6A5.0AT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NS6A5.0AT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NS6A5.0AT3G?
NS6A5.0AT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NS6A5.0AT3G 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 NS6A5.0AT3G?
For technical support, including NS6A5.0AT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NS6A5.0AT3G requirements.
6.How does Aetrix verify that NS6A5.0AT3G is sourced from the original manufacturer or authorized distributors?
All NS6A5.0AT3G 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 NS6A5.0AT3G meets industry standards.
7.What is the process for return or replacement of NS6A5.0AT3G?
All NS6A5.0AT3G units undergo pre-shipment inspection (PSI). If there is an issue with NS6A5.0AT3G, 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 NS6A5.0AT3G part is unused and in its original packaging.
Return procedure for NS6A5.0AT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NS6A5.0AT3G Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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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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