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Vishay General Semiconductor - Diodes Division SMBJ16AHM3/I
- Part No.:
- SMBJ16AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16AHM3/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,108
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Product details
Overview
SMBJ16AHM3/I 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 (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive ECUs.
For engineers reviewing the SMBJ16AHM3/I datasheet, SMBJ16AHM3/I pinout, SMBJ16AHM3/I application, or SMBJ16AHM3/I equivalent, key selection criteria include its 1.0 µA max reverse leakage at 16 V, -55 °C to +150 °C operating junction temperature, halogen-free RoHS-compliant construction, and AEC-Q101 qualification for automotive-grade reliability.
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 1.0 mA test current. Its low incremental surge resistance ensures stable clamping under repetitive 10/1000 µs transients up to 0.01% duty cycle.
Designed for PCB-level ESD and surge protection, it delivers fast response time (<1 ns), meets MSL Level 1 per J-STD-020 (260 °C reflow peak), and uses glass-passivated junction technology for robust surge endurance and thermal stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12–15 V DC rails. |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA - guaranteed avalanche onset range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 26.0 V at 23.1 A - clamped voltage during 600 W transient; protects downstream 3.3 V/5 V logic and 20 V-rated MOSFETs. |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves battery life and signal integrity in always-on sensor circuits. |
| PPPM | 600 W - peak surge handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) compliance. |
| TJ max | +150 °C - enables use in under-hood automotive modules and high-temperature industrial enclosures without derating. |
| Package | SMB (DO-214AA) - standardized 5.21 mm × 4.06 mm footprint compatible with automated SMT placement and IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity marked by cathode band. Matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR. |
| Anode | Reference/ground return | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors requiring zero-failure reliability. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets EU Directive 2011/65/EU and JEDEC J-STD-20E; supports green manufacturing and end-of-life recycling requirements. |
| 600 W peak pulse power (10/1000 µs) | Withstands repeated lightning-induced surges and inductive switching spikes without degradation in telecom and industrial motor drives. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns or baking preconditioning. |
| Glass passivated junction | Provides superior surge lifetime (>1000 pulses at rated PPPM) and stable VBR drift vs. temperature versus epoxy-passivated alternatives. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery-supplied ECU power input exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between fuse and DC-DC converter input. Use Value: Limits transient voltage to ≤26.0 V, preventing damage to 36 V-rated input stages while maintaining <1 µA standby leakage. |
Use Scenario: Analog output line of a pressure sensor in a factory automation PLC module subject to cable ESD and nearby relay switching noise. IC Role / Device Role / Timing Role: Point-of-entry TVS on 4–20 mA current loop or 0–10 V analog output trace. Use Value: Clamps sub-100 ns ESD events to <26.0 V within nanoseconds, preserving ADC reference accuracy and avoiding false triggers. |
| Telecom DC Power Feeding | Consumer USB Port Surge Protection |
|
Use Scenario: -48 V DC feeding line in PoE-powered base station equipment encountering induced surges from nearby AC mains or lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage protector upstream of hot-swap controller and isolation circuitry. Use Value: Absorbs 600 W surges without latch-up, enabling compliance with ITU-T K.20/21 and GR-1089-CORE immunity requirements. |
Use Scenario: VBUS line of USB 2.0 host port in smart home hub exposed to user-handling ESD and adapter plug-in transients. IC Role / Device Role / Timing Role: First-line bidirectional-capable (via adjacent CA variant) or unidirectional clamp referenced to GND. Use Value: Provides <1 ns response and <26.0 V clamping to safeguard USB PHY transceivers rated for 5.5 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHE3/I | RoHS-compliant but not halogen-free; lacks AEC-Q101 qualification; same VWM, VC, and PPPM. | Restricted to commercial-grade industrial or consumer products where automotive qualification is unnecessary. | Select when cost sensitivity outweighs halogen-free or automotive requirements. |
| SMBJ16CAHM3/I | Bidirectional version; identical VWM (16 V), but symmetric clamping (VC = 26.0 V in both directions); same package and AEC-Q101/HM3 specs. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs. | Choose only if bidirectional protection is mandated by signal architecture - not a drop-in replacement. |
Compared with SMBJ16AHM3/I, the HE3/I variant trades halogen-free content and automotive qualification for lower cost in non-automotive settings, while the SMBJ16CAHM3/I provides symmetrical clamping essential for differential or AC signals - neither is pin-compatible without circuit redesign.
Availability
SMBJ16AHM3/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ16AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series targets board-level transient suppression in harsh environments - engineered for high-energy surge absorption, low clamping voltage, and automotive-grade robustness across SMB package variants.
FAQ
What is the breakdown voltage range for SMBJ16AHM3/I?
The SMBJ16AHM3/I has a guaranteed breakdown voltage (VBR) range of 17.8 V to 19.7 V at 1.0 mA test current, measured per ANSI/IEEE C62.35. This range ensures consistent avalanche initiation across temperature and unit variation, critical for predictable clamping behavior in automotive and industrial designs where SMBJ16AHM3/I is deployed as primary overvoltage protection.
Is SMBJ16AHM3/I suitable for automotive applications?
Yes, SMBJ16AHM3/I is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (HM3 suffix), making it suitable for automotive powertrain, body control, and ADAS modules. Its -55 °C to +150 °C operating range, MSL Level 1 rating, and validated surge lifetime meet stringent OEM requirements - confirming SMBJ16AHM3/I for under-hood and cabin-mounted electronics.
What is the maximum clamping voltage of SMBJ16AHM3/I at rated surge current?
The SMBJ16AHM3/I clamps to a maximum of 26.0 V at its rated peak pulse current of 23.1 A (10/1000 µs waveform). This value is verified per standard test conditions and defines the upper voltage limit imposed on protected circuitry during transient events - a key parameter ensuring compatibility with 24 V system components and 3.3 V/5 V logic interfaces downstream of SMBJ16AHM3/I.
Does SMBJ16AHM3/I have polarity marking, and how is it oriented on PCB?
Yes, SMBJ16AHM3/I is unidirectional and features a visible cathode band on the SMB (DO-214AA) package body. During PCB layout, the banded end must connect to the line being protected (e.g., 12 V rail), while the anode connects to ground or low-impedance return. Incorrect orientation renders SMBJ16AHM3/I ineffective against reverse transients and may cause forward conduction failure.
How does SMBJ16AHM3/I compare to SMAJ16A in terms of power handling?
SMBJ16AHM3/I delivers 600 W peak pulse power (PPPM) with a 10/1000 µs waveform, whereas SMAJ16A (SMA package) is rated for 400 W under identical conditions. The larger SMB footprint of SMBJ16AHM3/I enables higher thermal dissipation and surge current capacity (23.1 A vs. ~15 A), making SMBJ16AHM3/I preferred for high-energy industrial and automotive transients where SMAJ16A would thermally saturate.
SMBJ16AHM3/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:
- Discontinued at Digi-Key
- 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/I FAQ
1.How can I place an order for SMBJ16AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16AHM3/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/I reliable?
The price and inventory of SMBJ16AHM3/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/I is usually 5 days.
3.What payment methods are accepted for SMBJ16AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16AHM3/I?
SMBJ16AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16AHM3/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/I?
For technical support, including SMBJ16AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16AHM3/I requirements.
6.How does Aetrix verify that SMBJ16AHM3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ16AHM3/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/I meets industry standards.
7.What is the process for return or replacement of SMBJ16AHM3/I?
All SMBJ16AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16AHM3/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/I part is unused and in its original packaging.
Return procedure for SMBJ16AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16AHM3/I Tags
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