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Vishay General Semiconductor - Diodes Division SMBJ16HE3/5B
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- Part No.:
- SMBJ16HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16HE3/5B.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,671
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Product details
Overview
SMBJ16HE3/5B 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 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power dissipation with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the SMBJ16HE3/5B datasheet, SMBJ16HE3/5B pinout, SMBJ16HE3/5B application, or SMBJ16HE3/5B equivalent, this device is evaluated for ESD and surge immunity in 12 V–24 V DC systems, reverse polarity protection circuits, and I/O line hardening where low clamping voltage and AEC-Q101 qualification are required.
Technical Context
The SMBJ16HE3/5B operates as a unidirectional avalanche diode with cathode-banded polarity, leveraging glass-passivated junction technology for stable breakdown behavior under repetitive transient stress. Its 17.8–19.7 V breakdown voltage (VBR) at 1 mA test current ensures precise triggering above normal operating voltage while maintaining low leakage (<1.0 µA at 16 V).
Thermally, it exhibits 100 °C/W junction-to-ambient thermal resistance (RθJA) on standard 0.2" × 0.2" copper pads and supports operation from –55 °C to +150 °C junction temperature. The device meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 12 V nominal systems. |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed avalanche onset range; ensures reliable turn-on without premature conduction. |
| VC (Clamping Voltage) | 26.0 V at IPPM = 23.1 A - Limits transient voltage seen by downstream circuitry during 10/1000 µs surge events. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized lightning/surge energy per IEC 61000-4-5; enables robust protection in industrial environments. |
| ID (Reverse Leakage) | ≤1.0 µA at 16 V - Minimizes standby power loss and avoids false triggering in low-power sensor nodes. |
| TJ max. | +150 °C - Supports under-hood automotive placement and high-temperature industrial enclosures without derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to system ground or lower-potential rail in unidirectional TVS configuration. |
| Cathode | Current exit terminal in forward bias; marked end | Connected to protected line (e.g., 12 V supply or CAN_H); clamps transients toward ground when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and body modules requiring long-term reliability under thermal cycling and humidity. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when properly mounted on 5 mm × 5 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected ICs - e.g., keeps microcontroller I/O pins below absolute maximum ratings during transients. |
| MSL Level 1 moisture sensitivity | Enables standard reflow assembly without baking; compatible with automated SMT lines using JEDEC-compliant profiles up to 260 °C peak. |
| Glass-passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift versus epoxy-passivated alternatives. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Hardening |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges above 16 V. Use Value: Limits peak voltage to 26.0 V during 23.1 A transients, preventing damage to 36 V-rated DC-DC controllers and CAN transceivers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure or temperature sensors) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across differential pair or single-ended output to suppress fast-rising transients. Use Value: Sub-1 µA leakage at 16 V avoids signal offset errors; 26.0 V clamping preserves ADC input integrity during ±8 kV contact ESD. |
| DC Power Supply Input Stage | Motor Drive Gate Driver Protection |
|
Use Scenario: Front-end surge suppression in 24 V industrial power supplies subjected to switching transients from nearby relays or solenoids. IC Role / Device Role / Timing Role: Primary TVS on input bus, coordinated with upstream fuse and downstream π-filter for multi-stage protection. Use Value: 600 W rating handles repetitive 10/1000 µs surges up to 0.01% duty cycle; 150 °C TJ max supports enclosed high-temp environments. |
Use Scenario: Clamping Miller-induced voltage spikes on high-side gate driver outputs driving N-channel MOSFETs in half-bridge inverters. IC Role / Device Role / Timing Role: Fast-response TVS placed from gate to source to limit dv/dt-induced overshoot during switching transitions. Use Value: 23.1 A IPPM capability absorbs gate loop energy; low incremental surge resistance minimizes clamping delay and overshoot magnitude. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/5B | No AEC-Q101 qualification; commercial-grade only; identical electrical specs and SMB package. | Not suitable for automotive production; acceptable for industrial or consumer prototypes where qualification is not mandated. | Select SMBJ16A-E3/5B for cost-sensitive non-automotive designs requiring same clamping performance without qualification overhead. |
| SAC16-03 | Lower 600 W rating but higher 30 kV ESD contact rating (IEC 61000-4-2); same VWM and VC, but DO-214AC (SMA) package. | Better suited for handheld or USB-connected devices needing extreme ESD hardness; smaller footprint but lower thermal mass. | Choose SAC16-03 when ESD dominates threat model and board space is constrained, accepting reduced surge energy handling vs. SMBJ16HE3/5B. |
Compared with SMBJ16A-E3/5B and SAC16-03, the SMBJ16HE3/5B uniquely combines AEC-Q101 qualification, 600 W surge capacity, and SMB thermal performance - making it the preferred choice for automotive and high-reliability industrial power rail protection where both surge robustness and long-term validation matter.
Availability
SMBJ16HE3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial power supply input stages, and sensor interface hardening requiring stable component supply and traceable sourcing.
Supply support for SMBJ16HE3/5B 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, efficiency, and application-specific optimization.
The SMBJ series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for low clamping voltage, repeatable surge endurance, and seamless integration into automated SMT assembly lines.
FAQ
What is the clamping voltage of SMBJ16HE3/5B at its rated peak pulse current?
The SMBJ16HE3/5B has a maximum clamping voltage (VC) of 26.0 V at its specified peak pulse current (IPPM) of 23.1 A under a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024. The SMBJ16HE3/5B maintains this clamping performance across its full operating temperature range, ensuring consistent protection for downstream components like microcontrollers and gate drivers.
Is SMBJ16HE3/5B suitable for automotive applications?
Yes, SMBJ16HE3/5B is AEC-Q101 qualified, explicitly validated for automotive use cases including engine control units, body electronics, and ADAS power domains. Its qualification covers temperature cycling, highly accelerated life testing (HALT), and ESD robustness per automotive standards. The SMBJ16HE3/5B also meets MSL Level 1 and supports reflow profiles up to 260 °C - essential for modern automotive PCB assembly.
How does the SMBJ16HE3/5B differ from the SMBJ16A-E3/5B?
The SMBJ16HE3/5B and SMBJ16A-E3/5B share identical electrical parameters (VWM = 16 V, VC = 26.0 V, PPPM = 600 W) and SMB (DO-214AA) packaging, but only the HE3 suffix denotes AEC-Q101 qualification. The SMBJ16A-E3/5B is commercial-grade only. This distinction makes SMBJ16HE3/5B mandatory for automotive production, while SMBJ16A-E3/5B suffices for industrial prototyping where qualification is not required.
What is the maximum reverse leakage current for SMBJ16HE3/5B at its stand-off voltage?
The SMBJ16HE3/5B specifies a maximum reverse leakage current (ID) of 1.0 µA at its 16 V stand-off voltage (VWM), tested at TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power loss in always-on automotive modules. The value remains within specification up to +125 °C junction temperature per thermal derating curves in the datasheet.
Can SMBJ16HE3/5B be used in bidirectional configurations?
No, SMBJ16HE3/5B is a unidirectional TVS diode, identified by its cathode band marking and specified breakdown behavior in reverse bias only. For bidirectional protection, Vishay offers the SMBJ16CA variant (e.g., SMBJ16CA-E3/5B). Using SMBJ16HE3/5B in bidirectional applications would leave positive transients unprotected on the anode side, risking component failure - always match device polarity to system surge directionality.
SMBJ16HE3/5B 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)
SMBJ16HE3/5B FAQ
1.How can I place an order for SMBJ16HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16HE3/5B 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 SMBJ16HE3/5B reliable?
The price and inventory of SMBJ16HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ16HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16HE3/5B?
SMBJ16HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16HE3/5B 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 SMBJ16HE3/5B?
For technical support, including SMBJ16HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16HE3/5B requirements.
6.How does Aetrix verify that SMBJ16HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ16HE3/5B 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 SMBJ16HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ16HE3/5B?
All SMBJ16HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16HE3/5B, 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 SMBJ16HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ16HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16HE3/5B Tags
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