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Vishay General Semiconductor - Diodes Division SMBJ16HE3/52
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- Part No.:
- SMBJ16HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16HE3/52.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,297
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Product details
Overview
SMBJ16HE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform). It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the SMBJ16HE3/52 datasheet, SMBJ16HE3/52 pinout, SMBJ16HE3/52 application, or SMBJ16HE3/52 equivalent, key selection criteria include unidirectional polarity, 26.0 V clamping performance at 23.1 A, AEC-Q101 qualification status, SMB package thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 16 V), but triggers into low-impedance conduction when transient voltage exceeds its 17.8 V minimum breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and low incremental surge resistance during 10/1000 µs surges.
Designed for unidirectional DC line protection, SMBJ16HE3/52 exhibits forward voltage ≤3.5 V at 50 A (IFSM = 100 A, 8.3 ms half-sine), supports operating junction temperatures from –55 °C to +150 °C, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Confirmed breakdown range ensuring reliable triggering without premature conduction. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamped voltage seen by protected circuit during 600 W transient; determines downstream component stress. |
| PPPM | 600 W (10/1000 µs) - Peak surge energy handling capacity; validates robustness against IEC 61000-4-5 Level 4 surges. |
| TJ max. | +150 °C - Maximum junction temperature enabling use in under-hood automotive environments and high-ambient industrial settings. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
| AEC-Q101 | Qualified - Validated for automotive electronic systems per stress test requirements including HTOL, TCT, and ESD. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HE3 suffix), MSL Level 1, 260 °C reflow compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when voltage exceeds VBR. |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against severe transients like load dump (ISO 7637-2 Pulse 5a) without degradation. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body control, and ADAS modules requiring long-term field stability. |
| Glass passivated junction | Ensures consistent VBR tolerance, low leakage (<1 µA at VWM), and resistance to humidity-induced parameter drift. |
| Low profile SMB package | Supports high-density PCB layouts and automated pick-and-place assembly with JEDEC-standard footprint. |
| 100 A IFSM (8.3 ms) | Withstands repetitive motor-commutation surges and inductive turn-off spikes without bond-wire failure. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery rail in vehicle ECUs subjected to ISO 7637-2 load dump pulses up to 60 V. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VBAT and GND to clamp transients before they reach LDOs and microcontrollers. Use Value: Limits clamped voltage to 26.0 V, preventing damage to 3.3 V/5 V logic rails downstream while surviving 100 A surge peaks. |
Use Scenario: Analog output line of a pressure sensor in factory automation PLC I/O modules exposed to EFT bursts. IC Role / Device Role / Timing Role: TVS connected across signal and ground to suppress fast-rising noise (IEC 61000-4-4, 5 kHz burst). Use Value: Sub-1 ns response time and 26.0 V clamping prevent ADC saturation and maintain ±0.1% measurement accuracy during interference. |
| DC Motor Drive Board Protection | Telecom Power Interface Protection |
|
Use Scenario: H-bridge gate driver supply rail in robotic actuator encountering back-EMF spikes during rapid direction reversal. IC Role / Device Role / Timing Role: SMBJ16HE3/52 mounted at motor controller input to absorb inductive kickback before it couples into logic circuitry. Use Value: 600 W rating and 23.1 A IPPM handle repeated 100 V/10 A spikes without parametric shift or thermal runaway. |
Use Scenario: -48 V telecom power feed entering base station equipment, vulnerable to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-stage unidirectional TVS on DC input, coordinated with MOVs and gas discharge tubes in multi-stage protection. Use Value: Precise 16 V VWM allows coordination with secondary-stage protectors while maintaining low let-through voltage to downstream DC/DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/52 | Commercial-grade (non-AEC-Q101), same VWM/VBR/VC specs, identical SMB package and pinout. | Lacks automotive qualification; suitable for industrial/commercial power supplies where AEC-Q101 is not mandated. | Select when cost sensitivity outweighs automotive reliability requirements and lifecycle assurance is not required. |
| SMCJ16AHE3/52 | Same electrical specs but in larger SMC (DO-214AB) package; higher RθJA (50 °C/W vs. 100 °C/W) and 1500 W PPPM rating. | Better thermal performance and surge margin; requires larger PCB footprint and different pad layout. | Choose when higher surge endurance (e.g., for outdoor telecom or railway applications) justifies added board space and cost. |
Compared with SMBJ16A-E3/52, SMBJ16HE3/52 adds AEC-Q101 validation for automotive use without altering electrical behavior; compared with SMCJ16AHE3/52, it trades 2.5× surge power headroom for 40% smaller PCB area and tighter thermal constraints in space-constrained modules.
Availability
SMBJ16HE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, DC motor controllers, and telecom power entry circuits requiring stable component supply with AEC-Q101 compliance and SMT manufacturability.
Supply support for SMBJ16HE3/52 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, MOSFETs, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The SMBJ series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, combining standardized SMB packaging with AEC-Q101 qualification and tightly controlled clamping parameters.
FAQ
What is the clamping voltage of SMBJ16HE3/52 at its rated peak pulse current?
The SMBJ16HE3/52 has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 23.1 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The SMBJ16HE3/52 maintains this clamping performance across its full operating temperature range.
Is SMBJ16HE3/52 suitable for automotive applications?
Yes, SMBJ16HE3/52 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (page 3, footnote 1 and ordering information section). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making SMBJ16HE3/52 appropriate for under-hood and cabin-mounted automotive electronics such as body control modules and ADAS sensors.
What is the standoff voltage and breakdown range for SMBJ16HE3/52?
The SMBJ16HE3/52 has a reverse stand-off voltage (VWM) of 16 V and a breakdown voltage (VBR) range of 17.8 V to 19.7 V at 1 mA test current. These values ensure reliable non-conduction during normal operation while guaranteeing activation before damaging overvoltages occur. The SMBJ16HE3/52's VBR tolerance is ±5.5%, consistent with the entire SMBJ family specification.
Does SMBJ16HE3/52 have bidirectional capability?
No, SMBJ16HE3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., SMBJ16CA). The SMBJ16HE3/52 conducts only in reverse bias above VBR and blocks forward current up to 3.5 V at 50 A; its polarity must be observed during PCB layout to ensure correct protection orientation.
What package type and mounting specifications apply to SMBJ16HE3/52?
SMBJ16HE3/52 uses the SMB (DO-214AA) surface-mount package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. It is rated MSL Level 1 and supports 260 °C peak reflow. Recommended mounting uses 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet figure notes and thermal characteristics table for accurate RθJA modeling.
SMBJ16HE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 20.8A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SMBJ16HE3/52 FAQ
1.How can I place an order for SMBJ16HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16HE3/52 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 SMBJ16HE3/52 reliable?
The price and inventory of SMBJ16HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ16HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16HE3/52?
SMBJ16HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16HE3/52 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 SMBJ16HE3/52?
For technical support, including SMBJ16HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16HE3/52 requirements.
6.How does Aetrix verify that SMBJ16HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ16HE3/52 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 SMBJ16HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ16HE3/52?
All SMBJ16HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16HE3/52, 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 SMBJ16HE3/52 part is unused and in its original packaging.
Return procedure for SMBJ16HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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