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Vishay General Semiconductor - Diodes Division SMBG16HE3/5B
- Part No.:
- SMBG16HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16HE3/5B.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,562
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Product details
Overview
SMBG16HE3/5B from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs). It is AEC-Q101 qualified and used to protect automotive sensor interfaces and DC power rails.
For engineers reviewing the SMBG16HE3/5B datasheet, SMBG16HE3/5B pinout, SMBG16HE3/5B application, or SMBG16HE3/5B equivalent, this page delivers verified electrical parameters, JEDEC-compliant thermal data, AEC-Q101 qualification status, RoHS/whisker-test compliance (JESD 201 Class 2), and validated alternatives for automotive-grade transient suppression design.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector with fast response (<1 ns) and low incremental surge resistance. Its glass-passivated junction ensures stable breakdown behavior under repetitive 10/1000 µs surges at 0.01% duty cycle, and its thermal resistance (RθJA = 100 °C/W, RθJL = 20 °C/W) supports reliable operation up to 150 °C junction temperature.
The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and exhibits ≤1.0 µA reverse leakage at 16 V (VWM). Its unidirectional polarity-marked with cathode band-enables integration into DC-biased circuits where reverse conduction must be blocked during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected line. |
| VBR (min/max) | 17.8 V / 19.7 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold across production lot. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamping voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| TJ max. | +150 °C - Maximum junction temperature; supports under-hood automotive deployment without derating below 125 °C ambient. |
| Leakage ID | ≤1.0 µA at 16 V - Ultra-low reverse leakage preserves battery life in always-on automotive modules. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, H3TRB, and TCT. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead frame with matte tin-plated terminals, compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0. Cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during positive surge on cathode side. |
| Cathode | Clamping reference terminal | Marked end; connected to protected line (e.g., 12 V rail or sensor output); clamps voltage when line exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; eliminates parameter drift due to moisture or contamination ingress. |
| 600 W peak pulse power (10/1000 µs) | Supports robust immunity to ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Combination Wave surges in automotive ECUs. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, ADAS sensors, and body electronics. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under high-humidity, high-temperature conditions typical in automotive under-hood environments. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorning or delamination. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load-dump transients (ISO 7637-2 Pulse 5a) on 12 V/24 V vehicle power distribution networks feeding ECUs and lighting modules. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and ground; activates within <1 ns to limit voltage to ≤26.0 V during 100 V/100 ms surge. Use Value: Prevents latch-up or gate oxide damage in downstream PMICs and microcontrollers by holding rail voltage below absolute maximum ratings. |
Use Scenario: Protects analog outputs of pressure, temperature, and position sensors in factory automation systems exposed to relay-coil flyback and motor-drive noise. IC Role / Device Role / Timing Role: Bidirectional-capable clamping device (configured unidirectionally here) placed at sensor output pin to clamp both positive and negative transients relative to supply. Use Value: Maintains signal integrity and prevents ADC saturation or op-amp input stage damage during 600 W surge events without adding series impedance. |
| Consumer USB Power Delivery Line | Telecom Base Station DC Feed Protection |
Use Scenario: Guards 5 V/9 V/15 V USB PD power lines against ESD (IEC 61000-4-2 ±15 kV contact) and hot-swap inrush-induced overshoot. IC Role / Device Role / Timing Role: Uni-directional TVS tied between VBUS and GND; blocks reverse conduction while clamping positive excursions above 16 V. Use Value: Enables compliance with USB IF ESD immunity requirements without degrading 50 MHz signal integrity on CC and SBU lines. |
Use Scenario: Shields -48 V DC feed lines in 4G/5G remote radio units from lightning-induced surges coupled via tower grounding loops. IC Role / Device Role / Timing Role: High-power unidirectional suppressor mounted at DC input connector; clamps common-mode surges referenced to chassis ground. Use Value: Withstands 600 W pulses without degradation, extending field service life beyond 10 years in outdoor telecom infrastructure. |
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 | Same VWM (16 V), but lower PPPM (400 W vs. 600 W); higher VC (28.8 V vs. 26.0 V) at same IPPM. | Limited to lower-energy surge environments (e.g., consumer port protection); not recommended for ISO 7637-2 Pulse 5a. | Select SMBG16HE3/5B when 600 W surge margin and AEC-Q101 qualification are required. |
| 1.5SMC16A | Same VWM and VC, but in larger DO-214AB (SMC) package; higher thermal mass but incompatible footprint. | Requires PCB redesign; suitable only when board space allows larger pad layout and higher IFSM (200 A) is needed. | Choose SMBG16HE3/5B for drop-in replacement in space-constrained automotive modules using SMBG footprint. |
Compared with SMBJ16A-E3/5B and 1.5SMC16A, SMBG16HE3/5B uniquely combines AEC-Q101 qualification, 600 W rating in compact SMBG package, and JESD 201 Class 2 whisker resistance-making it optimal for next-generation automotive sensor nodes where reliability, size, and process compatibility are jointly constrained.
Availability
SMBG16HE3/5B is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, and telecom DC feed line hardening requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG16HE3/5B 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, MOSFETs, and protection devices with emphasis on automotive, industrial, and computing applications.
The SMBG series was engineered specifically for high-reliability transient suppression in space-constrained automotive modules, combining AEC-Q101 validation, robust surge capability, and automated placement compatibility.
FAQ
What is the clamping voltage of SMBG16HE3/5B and how is it measured?
The SMBG16HE3/5B has a maximum clamping voltage (VC) of 26.0 V, measured at 23.1 A peak pulse current (IPPM) using a 10/1000 µs waveform per IEC 61000-4-5. This value represents the highest voltage seen across the device during standardized surge testing and directly limits stress on protected circuitry. The SMBG16HE3/5B achieves this clamping performance while maintaining low dynamic impedance under surge conditions.
Is SMBG16HE3/5B suitable for automotive applications?
Yes, SMBG16HE3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, JESD 201 Class 2 whisker resistance, and validation across HTGB, H3TRB, and temperature cycling tests confirm suitability for engine control units, ADAS sensors, and body electronics. The SMBG16HE3/5B meets ISO 7637-2 Pulse 5a requirements when applied with proper PCB layout.
What does the "HE3" suffix indicate in SMBG16HE3/5B?
The "HE3" suffix in SMBG16HE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes the part from commercial-grade "E3" variants (e.g., SMBG16A-E3/5B), which lack automotive qualification and have lower whisker-test compliance (Class 1A). The SMBG16HE3/5B is intended for mission-critical automotive deployments where long-term metallurgical stability is mandatory.
How does SMBG16HE3/5B differ from SMBJ16A-E3/5B?
SMBG16HE3/5B delivers 600 W peak pulse power versus 400 W for SMBJ16A-E3/5B, with lower clamping voltage (26.0 V vs. 28.8 V at rated IPPM) and AEC-Q101 qualification. Both share the DO-215AA (SMBG) footprint, but SMBG16HE3/5B uses enhanced materials for automotive reliability. The SMBG16HE3/5B is preferred where higher surge margin and automotive certification are required.
What is the thermal resistance of SMBG16HE3/5B and why does it matter?
The SMBG16HE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. These values determine how effectively heat generated during surge events dissipates into the PCB and leads. Lower RθJL enables higher transient energy handling without thermal runaway, making the SMBG16HE3/5B suitable for high-duty-cycle protection in compact automotive modules.
SMBG16HE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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 (SMBG)
SMBG16HE3/5B FAQ
1.How can I place an order for SMBG16HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16HE3/5B 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 SMBG16HE3/5B reliable?
The price and inventory of SMBG16HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG16HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG16HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16HE3/5B?
SMBG16HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16HE3/5B 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 SMBG16HE3/5B?
For technical support, including SMBG16HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16HE3/5B requirements.
6.How does Aetrix verify that SMBG16HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG16HE3/5B 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 SMBG16HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG16HE3/5B?
All SMBG16HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16HE3/5B, 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 SMBG16HE3/5B part is unused and in its original packaging.
Return procedure for SMBG16HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16HE3/5B Tags
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