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Vishay General Semiconductor - Diodes Division SMAJ16HE3/61
- Part No.:
- SMAJ16HE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMAJ16HE3/61.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,661
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Product details
Overview
SMAJ16HE3/61 from Vishay General Semiconductor is a high-reliability, AEC-Q101-qualified unidirectional transient voltage suppressor (TVS) in DO-214AC (SMA) package, with 16 V stand-off voltage (VWM), 28.8 V maximum clamping voltage (VC) at 13.9 A peak pulse current (IPPM), and 400 W peak pulse power rating (10/1000 µs waveform). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive powertrain and body electronics.
For engineers reviewing the SMAJ16HE3/61 datasheet, SMAJ16HE3/61 pinout, SMAJ16HE3/61 application, or SMAJ16HE3/61 equivalent, this page delivers verified electrical parameters, automotive-grade qualification status, thermal resistance values, junction-to-lead thermal path data, and direct alternative part comparisons for robust circuit protection design.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ps) and low incremental surge resistance. Its breakdown voltage (VBR) is specified at 17.8–21.8 V with 1 mA test current, ensuring precise overvoltage triggering before downstream component damage.
Designed for surface-mount automated placement, it meets MSL Level 1 per J-STD-020, supports solder reflow up to 260 °C, and features matte tin-plated leads compliant with J-STD-002 and JESD22-B102. The HE3 suffix confirms AEC-Q101 qualification and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins |
| VC @ IPPM | 28.8 V - Clamped voltage seen by protected circuit during 13.9 A 10/1000 µs surge |
| IPPM | 13.9 A - Peak surge current capability under standard 10/1000 µs waveform |
| PPPM | 400 W - Transient energy absorption capacity without failure (derated above 78 V) |
| RθJL | 30 °C/W - Thermal resistance from junction to lead enables effective PCB copper pad heat sinking |
| TJ max. | +150 °C - Maximum junction temperature rating supports under-hood automotive environments |
| IFSM | 40 A - Single half-sine surge rating (8.3 ms) for short-duration overcurrent events |
Pinout & Package
DO-214AC (SMA) package: molded epoxy case with matte tin-plated leads; cathode indicated by band; 0.2 × 0.2 inch (5.0 × 5.0 mm) copper pads recommended per terminal for thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-voltage rail; defines forward conduction direction |
| Cathode (banded end) | Protected line input | Connected to signal/power line being safeguarded; clamps to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications with extended temperature and life-cycle stress testing |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| MSL Level 1 | Zero floor-life limitation; safe for standard SMT reflow without baking |
| 400 W peak pulse power | Withstands repeated ISO 7637-2 Pulse 1/2a/5a transients in 12 V vehicle systems |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth under high-temperature/humidity bias, critical for safety-critical ECUs |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails in engine control units against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp positive transients above 16 V. Use Value: Limits voltage excursion to ≤28.8 V during 13.9 A surges, preventing MCU latch-up or internal LDO failure. | Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS connected across sensor output and ground to absorb cable-induced ESD and inductive kickback. Use Value: Maintains signal integrity below 16 V DC operating range while suppressing >30 kV HBM ESD pulses. |
| Automotive Body Electronics | Consumer Appliance Motor Control |
Use Scenario: Shielding LIN bus transceivers in door module ECUs from wiring harness coupling transients. IC Role / Device Role / Timing Role: Unidirectional clamping device on LIN signal line referenced to local ground. Use Value: Preserves LIN physical layer compliance by holding line voltage within ±18.8 V during ISO 16750-2 tests. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: TVS mounted across motor terminals to divert inductive energy into ground path. Use Value: Prevents MOSFET drain-source avalanche failure during PWM commutation with 40 A IFSM surge margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16AHE3/61 | Lower VBR (17.8–19.7 V), tighter 10% VWM tolerance (16 V ±10%), 26.0 V VC at 15.4 A | Better suited for precision 16 V rail protection where lower clamping voltage is prioritized over surge margin | Select SMAJ16AHE3/61 when system-level testing shows 26.0 V clamping improves immunity margin without sacrificing IPPM |
| SMBJ16HE3/61 | Same VWM/VC, but SMB package (DO-214AA); 600 W PPPM; RθJL = 25 °C/W | Higher power handling and improved thermal dissipation, but larger footprint and different pad layout | Choose SMBJ16HE3/61 only if board space allows larger package and 600 W surge margin is required |
Compared with SMAJ16HE3/61, SMAJ16AHE3/61 offers lower clamping voltage at the cost of reduced surge current headroom, while SMBJ16HE3/61 trades compactness for higher power rating and better thermal performance-neither is pin-compatible due to differing package outlines and thermal pad requirements.
Availability
SMAJ16HE3/61 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interface protection, and consumer appliance motor drive applications requiring stable component supply, AEC-Q101 compliance, and traceable RoHS sourcing.
Supply support for SMAJ16HE3/61 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, rectifiers, and protection devices with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMAJ series is engineered specifically for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where AEC-Q101 validation and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of SMAJ16HE3/61 under a 10/1000 µs surge?
The SMAJ16HE3/61 exhibits a maximum clamping voltage (VC) of 28.8 V when subjected to its rated peak pulse current of 13.9 A using the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C on the recommended 0.2 × 0.2 inch copper pad layout and ensures downstream components remain within safe operating voltage limits during transient events.
Is SMAJ16HE3/61 qualified for automotive applications?
Yes, SMAJ16HE3/61 carries the HE3 suffix, confirming full AEC-Q101 qualification for automotive use. It has passed stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing (uHAST), making it suitable for engine control, body electronics, and ADAS subsystems where reliability is critical.
What does the 'HE3' suffix mean in SMAJ16HE3/61?
The 'HE3' suffix in SMAJ16HE3/61 indicates high-reliability, automotive-grade construction: 'H' denotes AEC-Q101 qualification, 'E3' signifies RoHS-compliant matte tin plating meeting JESD201 Class 2 whisker resistance, and full compliance with J-STD-020 MSL Level 1 for zero-bake surface mount assembly.
How does SMAJ16HE3/61 differ from the commercial-grade SMAJ16E3/61?
SMAJ16HE3/61 differs from SMAJ16E3/61 primarily in qualification and reliability: SMAJ16HE3/61 is AEC-Q101 qualified with JESD201 Class 2 whisker resistance and extended temperature validation, whereas SMAJ16E3/61 is commercial grade (JESD201 Class 1A) without automotive stress testing-making SMAJ16HE3/61 mandatory for safety-critical vehicle systems.
What is the thermal resistance from junction to lead (RθJL) for SMAJ16HE3/61?
The SMAJ16HE3/61 has a typical junction-to-lead thermal resistance (RθJL) of 30 °C/W, measured under standard conditions. This parameter enables effective heat transfer from the silicon die to the PCB copper pads via the leads, supporting sustained operation at +150 °C junction temperature when mounted on minimum recommended 0.2 × 0.2 inch copper areas.
SMAJ16HE3/61 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 13.9A
- 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)
SMAJ16HE3/61 FAQ
1.How can I place an order for SMAJ16HE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMAJ16HE3/61 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 SMAJ16HE3/61 reliable?
The price and inventory of SMAJ16HE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMAJ16HE3/61 is usually 5 days.
3.What payment methods are accepted for SMAJ16HE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMAJ16HE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMAJ16HE3/61?
SMAJ16HE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMAJ16HE3/61 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 SMAJ16HE3/61?
For technical support, including SMAJ16HE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMAJ16HE3/61 requirements.
6.How does Aetrix verify that SMAJ16HE3/61 is sourced from the original manufacturer or authorized distributors?
All SMAJ16HE3/61 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 SMAJ16HE3/61 meets industry standards.
7.What is the process for return or replacement of SMAJ16HE3/61?
All SMAJ16HE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMAJ16HE3/61, 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 SMAJ16HE3/61 part is unused and in its original packaging.
Return procedure for SMAJ16HE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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