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Vishay General Semiconductor - Diodes Division SMBJ16AHM3_A/I
- Part No.:
- SMBJ16AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16AHM3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,867
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Product details
Overview
SMBJ16AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features 16 V stand-off voltage (VWM), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current, 600 W peak pulse power (10/1000 µs), and operates across -55 °C to +150 °C junction temperature range - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the SMBJ16AHM3_A/I datasheet, SMBJ16AHM3_A/I pinout, SMBJ16AHM3_A/I application, or SMBJ16AHM3_A/I equivalent, this page delivers verified electrical specs, thermal derating behavior, AEC-Q101 qualification status, clamping performance under standardized surge waveforms, and direct alternatives with documented parameter divergence.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 17.8–19.7 V breakdown range (VBR at 1 mA). Its low incremental surge resistance ensures minimal voltage overshoot during fast transients, while the glass-passivated junction enables stable leakage (<1.0 µA at 16 V) and repeatable clamping.
The device is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 0.089 %/°C temperature coefficient of VBR. Thermal resistance is 100 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads), limiting continuous dissipation to 5.0 W at 50 °C ambient - requiring layout-aware thermal design for sustained surge duty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum DC or RMS voltage the device blocks without clamping; defines safe operating margin below breakdown |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - guaranteed avalanche initiation window; determines minimum overvoltage threshold for protection activation |
| VC @ IPPM | 26.0 V at 23.1 A - clamped voltage during 10/1000 µs surge; sets worst-case stress on downstream ICs or MOSFETs |
| PPPM | 600 W - peak transient power handling capability; defines survivability against lightning-induced or inductive kick energy |
| IFSM | 100 A - single half-sine surge rating (8.3 ms); validates robustness against motor-driver or relay-coil turn-off spikes |
| TJ max. | +150 °C - maximum junction temperature; constrains PCB copper area and airflow requirements for high-duty-cycle applications |
| RθJA | 100 °C/W - thermal resistance to ambient on standard pad layout; directly impacts steady-state power derating above 25 °C |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, MSL Level 1 (260 °C peak reflow). Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR; polarity-critical for unidirectional operation |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes conduction path during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements - supports PPAP and long-term reliability claims |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients common in 12 V/24 V vehicle systems and industrial PLC I/O without degradation |
| Low clamping ratio (VC/VWM = 1.625) | Minimizes overvoltage stress on protected ICs - critical for 16 V-rated microcontrollers or CAN transceivers |
| Matte tin-plated leads | Ensures solderability per J-STD-002 and JESD 22-B102; eliminates whisker risk (JESD 201 Class 2 compliant) |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates bake requirement and simplifies SMT line logistics |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: Suppressing load-dump spikes (up to 35 V, 100 ms) and alternator ripple on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and LDO input to limit voltage seen by regulator and MCU. Use Value: Clamps transients to ≤26.0 V, preventing LDO overvoltage shutdown and preserving MCU brown-out immunity. |
Use Scenario: Protecting analog outputs (e.g., 4–20 mA transmitter) from ESD and cable discharge events in factory-floor environments. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting surge current away from precision op-amp and DAC circuitry. Use Value: Sub-1 ns response time and <1.0 µA leakage at 16 V preserve signal integrity and calibration stability. |
| Telecom DC Power Input Stage | Consumer Appliance Motor Driver Gate Protection |
|
Use Scenario: Guarding PoE-powered equipment inputs against surges induced by nearby AC wiring or lightning coupling. IC Role / Device Role / Timing Role: Primary clamping element upstream of DC-DC converter, sized to absorb IEEE 802.3af/bt surge profiles. Use Value: 600 W rating and 23.1 A IPPM meet IEC 61000-4-5 Level 3 (1 kV/2 Ω) compliance margin. |
Use Scenario: Shielding N-channel MOSFET gate drivers from inductive kickback during BLDC motor commutation. IC Role / Device Role / Timing Role: TVS connected between gate and source to clamp Miller-induced voltage spikes exceeding VGS(max). Use Value: 16 V VWM aligns with typical 12 V gate drive rails; 26.0 V VC stays safely below 30 V VGS(max) limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHE3_A/I | RoHS-compliant but not halogen-free; same VWM, VBR, VC, PPPM, and AEC-Q101 qualification | No difference in circuit performance or reliability; differs only in material composition (halogen content) | Select SMBJ16AHE3_A/I if halogen-free requirement is waived and cost optimization is prioritized |
| SMBJ16CAHM3_A/I | Bidirectional variant; symmetric VBR (17.8–19.7 V) in both polarities; identical VC and PPPM | Required for AC-coupled or floating signal lines where polarity reversal occurs (e.g., RS-485, audio) | Choose SMBJ16CAHM3_A/I only when bidirectional clamping is mandated - unidirectional SMBJ16AHM3_A/I is unsuitable for AC signals |
Compared with SMBJ16AHE3_A/I, SMBJ16AHM3_A/I adds halogen-free compliance without altering electrical behavior; versus SMBJ16CAHM3_A/I, it trades bidirectional capability for optimized unidirectional clamping margin and lower capacitance - making SMBJ16AHM3_A/I the preferred choice for DC power rail and grounded signal protection.
Availability
SMBJ16AHM3_A/I is available at Aetrix Electronics and suitable for automotive ECU designs, industrial sensor modules, telecom power supplies, and consumer appliance motor control systems requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ16AHM3_A/I 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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMBJ series targets board-level transient protection in harsh environments - engineered for fast response, repeatable clamping, and long-term stability in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage range for SMBJ16AHM3_A/I?
The SMBJ16AHM3_A/I has a guaranteed breakdown voltage (VBR) range of 17.8 V to 19.7 V at 1 mA test current, measured per ANSI/IEEE C62.35. This window defines the minimum overvoltage level at which the device initiates avalanche conduction and begins clamping - critical for ensuring protection activates before downstream components exceed absolute maximum ratings. The value is confirmed in Vishay's official datasheet revision 09-Jan-2024, Document Number 88392.
Is SMBJ16AHM3_A/I qualified for automotive use?
Yes, SMBJ16AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and explicitly stated in the Vishay datasheet. It meets stress test requirements for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - making it suitable for under-hood and chassis-mounted automotive electronics. The qualification applies specifically to the HM3 variant, not generic SMBJ16A parts.
What is the maximum clamping voltage of SMBJ16AHM3_A/I under surge conditions?
The SMBJ16AHM3_A/I clamps to a maximum of 26.0 V when subjected to its rated 23.1 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This VC value represents the worst-case voltage imposed on protected circuitry during transient events and is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards. It remains stable across temperature and lifetime under specified surge repetition rates.
Does SMBJ16AHM3_A/I have halogen-free construction?
Yes, SMBJ16AHM3_A/I uses halogen-free molding compound and terminations, complying with IEC 61249-2-21 and regional environmental directives. The "HM3" suffix explicitly denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - distinct from the "HE3" (RoHS only) and "E3" (commercial grade) variants. This is verified in Vishay's ordering information table and material categorization documentation.
What is the thermal resistance of SMBJ16AHM3_A/I in standard mounting conditions?
The SMBJ16AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the Vishay datasheet. This value governs power derating above 25 °C ambient and must be used to calculate allowable continuous power dissipation - for example, at 70 °C ambient, maximum PD drops to ~3.5 W. Layout deviations significantly impact actual RθJA.
SMBJ16AHM3_A/I 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:
- 26V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ16AHM3_A/I FAQ
1.How can I place an order for SMBJ16AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16AHM3_A/I 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 SMBJ16AHM3_A/I reliable?
The price and inventory of SMBJ16AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ16AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16AHM3_A/I?
SMBJ16AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16AHM3_A/I 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 SMBJ16AHM3_A/I?
For technical support, including SMBJ16AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16AHM3_A/I requirements.
6.How does Aetrix verify that SMBJ16AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ16AHM3_A/I 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 SMBJ16AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ16AHM3_A/I?
All SMBJ16AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16AHM3_A/I, 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 SMBJ16AHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ16AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16AHM3_A/I Tags
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Diodes Incorporated
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