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Vishay General Semiconductor - Diodes Division SMAJ6.0HE3/61
- Part No.:
- SMAJ6.0HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ6.0HE3/61.pdf
- Description:
- TVS DIODE 6VWM 11.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,227
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Product details
Overview
SMAJ6.0HE3/61 from Vishay General Semiconductor is a high-reliability, AEC-Q101-qualified unidirectional transient voltage suppressor (TVS) in DO-214AC (SMA) package, designed for automotive and industrial surge protection. It features 6.0 V stand-off voltage (VWM), 11.4 V maximum clamping voltage (VC) at 35.1 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform), protecting sensitive MOSFETs and ICs against inductive switching transients.
For engineers reviewing the SMAJ6.0HE3/61 datasheet, SMAJ6.0HE3/61 pinout, SMAJ6.0HE3/61 application, or SMAJ6.0HE3/61 equivalent, this device serves as a robust, RoHS-compliant, high-whisker-resistance (JESD 201 Class 2) TVS diode optimized for automotive-grade ESD and lightning surge immunity in power rails and signal lines.
Technical Context
This unidirectional TVS operates with a 6.67–8.15 V breakdown voltage (VBR) at 10 mA test current and exhibits ≤800 µA reverse leakage at VWM. Its low clamping ratio (VC/VWM = 1.9) ensures effective overvoltage limiting during fast transients.
Thermally, it delivers RθJA = 120 °C/W and RθJL = 30 °C/W, enabling reliable operation up to +150 °C junction temperature. It meets MSL Level 1 per J-STD-020 and withstands solder reflow at 260 °C for 40 s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VC @ IPPM | 11.4 V - Clamped voltage across device at 35.1 A surge, limiting downstream stress |
| IPPM | 35.1 A - Peak surge current capability under 10/1000 µs waveform, defining protection margin |
| PPPM | 400 W - Peak pulse power dissipation, specifying transient energy handling capacity |
| TJ max. | +150 °C - Maximum junction temperature, supporting under-hood automotive deployment |
| IFSM | 40 A - Non-repetitive forward surge rating (8.3 ms half-sine), relevant for fault-current tolerance |
| Leakage @ VWM | ≤800 µA - Low standby current, minimizing quiescent power loss in always-on circuits |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, low-profile, RoHS-compliant, matte tin-plated leads. Meets UL 94 V-0 flammability rating. Cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected circuit ground or lower-potential node in unidirectional configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to line/rail being protected; conducts during overvoltage to shunt surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics |
| JESD 201 Class 2 whisker resistance | Ensures long-term solder joint reliability in high-vibration, high-temperature environments |
| 400 W peak pulse power (≤78 V) | Provides robust immunity against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
| Glass-passivated junction | Enhances stability and reduces parameter drift over temperature and lifetime |
| MSL Level 1 moisture sensitivity | Enables standard SMT assembly without baking, reducing manufacturing cost and risk |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5–12 V supply rails in engine control modules (ECMs) and body control modules (BCMs) against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and chassis ground to clamp transients within 1 ns response time. Use Value: Limits rail voltage to ≤11.4 V during 35.1 A surges, preventing damage to microcontrollers and CAN transceivers rated for 16 V absolute max. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in PLC I/O modules. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD (IEC 61000-4-2 ±15 kV) and cable discharge events. Use Value: Maintains signal integrity with <800 µA leakage at 6.0 V, avoiding DC offset errors in precision 12-bit measurement paths. |
| DC Motor Drive Gate Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding N-channel MOSFET gate drivers in automotive window lift or seat actuator H-bridges. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp Miller-induced voltage spikes during fast switching. Use Value: Fast response and low VC prevent gate oxide breakdown while surviving repetitive 40 A IFSM fault currents. |
Use Scenario: Secondary-side overvoltage suppression in 5 V USB-C PD adapters after rectification and filtering. IC Role / Device Role / Timing Role: Standoff-rated TVS on +5 V output rail to absorb capacitor discharge transients and regulator fault overshoot. Use Value: 6.0 V VWM allows stable regulation while 11.4 V VC stays below 12 V system-level safety thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0AHE3/61 | Lower VBR range (6.67–7.37 V), tighter tolerance; VC = 10.3 V at 38.8 A | Better suited for systems requiring lower clamping voltage and higher surge current margin | Select when tighter VBR distribution and sub-10.5 V clamping are critical for low-voltage logic protection |
| SMAJ6.5HE3/61 | Higher VWM = 6.5 V, VC = 12.3 V at 32.5 A, lower IPPM | Preferred where higher standoff avoids false triggering on 6.3 V nominal rails with ripple | Choose for 6.3–6.5 V systems needing margin against normal-mode noise while retaining automotive qualification |
Compared with SMAJ6.0HE3/61, SMAJ6.0AHE3/61 offers improved clamping performance at slightly reduced surge current rating, whereas SMAJ6.5HE3/61 trades clamping voltage for enhanced noise immunity-enabling precise selection based on rail tolerance, surge profile, and failure mode priorities.
Availability
SMAJ6.0HE3/61 is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, and consumer power adapter designs requiring stable component supply, AEC-Q101 compliance, and traceable high-reliability sourcing.
Supply support for SMAJ6.0HE3/61 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive qualification.
The SMAJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh-environment applications including automotive powertrain, ADAS, and industrial automation.
FAQ
What is the clamping voltage of SMAJ6.0HE3/61 and how is it measured?
The SMAJ6.0HE3/61 has a maximum clamping voltage (VC) of 11.4 V, measured at its rated peak pulse current (IPPM) of 35.1 A using a standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed per the Vishay datasheet (Document Number 88390, Rev. 29-Oct-08) and defines the upper voltage limit imposed on protected circuitry during transient events. The SMAJ6.0HE3/61 maintains this clamping performance across its full operating temperature range.
Is SMAJ6.0HE3/61 suitable for automotive applications?
Yes, SMAJ6.0HE3/61 is explicitly qualified to AEC-Q101 for automotive use and carries the "HE3" suffix denoting high-reliability, automotive-grade construction. It meets stringent requirements for thermal cycling, humidity resistance, and mechanical shock, and is rated for operation from −55 °C to +150 °C junction temperature-making it appropriate for under-hood and cabin ECUs. The SMAJ6.0HE3/61 also complies with JESD 201 Class 2 whisker resistance and MSL Level 1 handling standards.
How does SMAJ6.0HE3/61 differ from the standard SMAJ6.0E3/61?
The SMAJ6.0HE3/61 differs from SMAJ6.0E3/61 primarily in reliability grade and qualification: "HE3" denotes high-reliability, AEC-Q101-qualified, JESD 201 Class 2 whisker-tested construction, while "E3" indicates commercial-grade RoHS compliance only. Both share identical electrical specs (VWM = 6.0 V, VC = 11.4 V), but SMAJ6.0HE3/61 undergoes extended stress testing and lot traceability required for automotive production. The SMAJ6.0HE3/61 is not a drop-in replacement for non-automotive designs unless reliability certification is mandated.
What is the maximum reverse leakage current for SMAJ6.0HE3/61 at its stand-off voltage?
The maximum reverse leakage current (ID) for SMAJ6.0HE3/61 is 800 µA at its rated stand-off voltage (VWM) of 6.0 V and ambient temperature of 25 °C. This value is specified in the Vishay datasheet (88390) and remains stable across the device's operational temperature range due to its glass-passivated junction. Low leakage ensures minimal impact on power efficiency in always-on automotive subsystems powered by SMAJ6.0HE3/61-protected rails.
Can SMAJ6.0HE3/61 be used in bi-directional protection configurations?
No, SMAJ6.0HE3/61 is a unidirectional TVS diode, identifiable by its cathode band marking and specified electrical characteristics for single-polarity operation. For bi-directional protection, Vishay offers the SMAJ6.0CA variant (with "CA" suffix), which provides symmetrical clamping in both directions. Using SMAJ6.0HE3/61 in reverse-biased configurations risks permanent damage, as it is not rated for reverse conduction beyond its VWM. Always verify polarity alignment when deploying SMAJ6.0HE3/61 in circuit designs.
SMAJ6.0HE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 11.4V
- Current - Peak Pulse (10/1000µs):
- 35.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMAJ6.0HE3/61 FAQ
1.How can I place an order for SMAJ6.0HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ6.0HE3/61 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 SMAJ6.0HE3/61 reliable?
The price and inventory of SMAJ6.0HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ6.0HE3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ6.0HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ6.0HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ6.0HE3/61?
SMAJ6.0HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ6.0HE3/61 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 SMAJ6.0HE3/61?
For technical support, including SMAJ6.0HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ6.0HE3/61 requirements.
6.How does Aetrix verify that SMAJ6.0HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ6.0HE3/61 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 SMAJ6.0HE3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ6.0HE3/61?
All SMAJ6.0HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ6.0HE3/61, 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 SMAJ6.0HE3/61 part is unused and in its original packaging.
Return procedure for SMAJ6.0HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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