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Vishay General Semiconductor - Diodes Division SMBJ16AHM3_B/H
- Part No.:
- SMBJ16AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16AHM3_B/H.pdf
- Description:
- 600W,16V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,081
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Product details
Overview
SMBJ16AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1.0 mA test current, 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines of industrial sensor interfaces.
For engineers reviewing the SMBJ16AHM3_B/H datasheet, SMBJ16AHM3_B/H pinout, SMBJ16AHM3_B/H application, or SMBJ16AHM3_B/H equivalent, this part delivers verified AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, and MSL Level 1 moisture sensitivity - critical for automotive-grade ECU input protection, industrial PLC I/O modules, and high-reliability DC power supply surge suppression.
Technical Context
This unidirectional TVS diode operates as a fast-acting shunt clamp during transient events, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its clamping behavior is defined by a well-controlled VC/IPPM curve, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W enabling reliable operation up to TJ = +150 °C.
The SMBJ16AHM3_B/H is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports automated SMT placement, and meets UL 497B recognition (QVGQ2) for telecom and industrial protectors. Polarity is marked by a cathode band; no marking applies to bidirectional variants - not applicable here due to "A" (unidirectional) suffix.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC/AC working margin for protected circuitry. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1.0 mA - Confirmed breakdown threshold range ensures predictable turn-on under transients without premature leakage. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamped voltage seen by downstream ICs during 600 W, 10/1000 µs surge; limits stress on 24 V logic or MOSFET gate drivers. |
| PPPM | 600 W - Peak pulse power handling per single transient event; validated per ANSI/IEEE C62.35 with 0.01% duty cycle derating. |
| IFSM | 100 A - Single half-sine surge current capability (8.3 ms); supports protection against inductive switch-off spikes in relay or solenoid circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables use in under-hood automotive or enclosed industrial enclosures without forced cooling. |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline (5.21 mm × 4.06 mm × 2.20 mm) compatible with IPC-7351B land patterns. |
Pinout & Package
Package: SMB (DO-214AA), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by a visible band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or low-side reference in unidirectional clamp configuration; forms return path for surge current. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 24 V rail or sensor output); conducts surge energy to ground when VIN exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics - ensures reliability under temperature cycling, vibration, and humidity stress. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations without compromising thermal or electrical performance; supports green manufacturing and end-of-life compliance. |
| 600 W peak pulse power (10/1000 µs) | Provides robust immunity against IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly laid out with low-inductance grounding. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage overshoot during clamping - critical for safeguarding 3.3 V or 5 V logic interfaces connected via level-shifting buffers. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-induced popcorn failure; eliminates pre-bake requirement for production lines. |
Applications
| Automotive Body Control Module (BCM) Input Protection | Industrial PLC Digital Input Interface |
|---|---|
|
Use Scenario: Protecting 12 V/24 V switched inputs in BCMs from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between input terminal and chassis ground to clamp transients before reaching microcontroller GPIO or optocoupler input. Use Value: Limits clamped voltage to ≤26.0 V during 23.1 A surge, preventing latch-up or permanent damage to 32-bit ARM-based MCU input protection networks. |
Use Scenario: Safeguarding 24 V digital input channels in modular PLCs exposed to field wiring inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact or PNP sourcing inputs, positioned upstream of series current-limiting resistor and Schmitt trigger buffer. Use Value: Withstands repetitive 600 W surges while maintaining <1 µA leakage at 16 V, ensuring stable logic state detection without false triggering. |
| DC Power Supply Rail Protection (24 V) | Sensor Signal Line Protection (CAN/LIN) |
|
Use Scenario: Secondary surge suppression on regulated 24 V DC bus feeding motor drivers and I/O expanders. IC Role / Device Role / Timing Role: Parallel-connected TVS across power rail and ground, coordinated with upstream fuse and common-mode choke for full IEC 61000-4-4/5 compliance. Use Value: Achieves 26.0 V clamping at 23.1 A, holding downstream DC-DC converters within absolute maximum ratings during 10/1000 µs transients. |
Use Scenario: Point-of-entry protection for LIN bus or low-speed CAN nodes in vehicle subsystems (e.g., seat control, HVAC). IC Role / Device Role / Timing Role: Unidirectional clamp on signal line referenced to local ground, used alongside common-mode chokes and bias resistors. Use Value: Low capacitance (<100 pF typical) avoids signal integrity degradation at 20 kbit/s LIN rates while suppressing ESD ±30 kV (air) per IEC 61000-4-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16AHE3_B/H | Same electrical specs but RoHS-compliant (E3), non-halogen-free; lacks AEC-Q101 qualification. | Approved for commercial/industrial use only; not certified for automotive under-hood environments. | Select when AEC-Q101 is not required and halogen-free material is not mandated by OEM specification. |
| SMAJ16A-M3 | Lower 400 W PPPM; SMA package (smaller footprint, higher RθJA = 140 °C/W); same VWM/VBR range. | Suitable for space-constrained consumer PCBs with lower surge exposure; not recommended for automotive or industrial mains-connected systems. | Choose only for cost-sensitive, low-energy transient environments where 600 W headroom is unnecessary. |
Compared with SMBJ16AHM3_B/H, the SMBJ16AHE3_B/H offers identical clamping and surge performance but omits AEC-Q101 validation and halogen-free content, while the SMAJ16A-M3 sacrifices 33 % peak power rating and thermal robustness for reduced board area - making SMBJ16AHM3_B/H the optimal choice for mission-critical 24 V automotive and industrial protection.
Availability
SMBJ16AHM3_B/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and 24 V DC power distribution systems requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMBJ16AHM3_B/H 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 is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial automation, and telecommunications infrastructure where robustness, AEC-Q101 compliance, and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBJ16AHM3_B/H at its rated peak pulse current?
The SMBJ16AHM3_B/H has a maximum clamping voltage (VC) of 26.0 V at its specified peak pulse current (IPPM) of 23.1 A, measured using the standard 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and ensures downstream components see limited overvoltage stress during surge events. The SMBJ16AHM3_B/H maintains this clamping performance with minimal degradation over its qualified lifetime.
Is SMBJ16AHM3_B/H qualified for automotive applications?
Yes, SMBJ16AHM3_B/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It is specifically intended for use in automotive electronic control units, body modules, and infotainment systems where reliability under thermal cycling, mechanical shock, and high-humidity conditions is required. The SMBJ16AHM3_B/H meets all stress test requirements defined in AEC-Q101 Rev H.
What does the "HM3" suffix mean in SMBJ16AHM3_B/H?
The "HM3" suffix in SMBJ16AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from commercial-grade "E3" or non-automotive "M3" variants. It confirms compliance with JEDEC J-STD-020 MSL Level 1, JESD 201 Class 2 whisker resistance, and UL 497B recognition. The SMBJ16AHM3_B/H is therefore suitable for both automotive and high-reliability industrial deployments where material content and qualification status are auditable.
Can SMBJ16AHM3_B/H be used in bidirectional protection circuits?
No, SMBJ16AHM3_B/H is a unidirectional TVS diode, as indicated by the "A" suffix (versus "CA" for bidirectional). It conducts only in reverse breakdown and must be oriented with cathode toward the protected line. For bidirectional protection - such as AC lines or differential buses like RS-485 - a part like SMBJ16CA would be required. Using SMBJ16AHM3_B/H in a bidirectional configuration risks failure during positive-going transients.
What is the thermal resistance of SMBJ16AHM3_B/H, and how does it affect layout?
The SMBJ16AHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured on 0.2" × 0.2" copper pads per terminal. To maintain TJ ≤ 150 °C under sustained 5.0 W power dissipation, PCB layout must include adequate copper pour and thermal vias beneath the SMB (DO-214AA) package. The SMBJ16AHM3_B/H requires adherence to Vishay's recommended pad dimensions to ensure rated thermal and surge performance.
SMBJ16AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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_B/H FAQ
1.How can I place an order for SMBJ16AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16AHM3_B/H 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_B/H reliable?
The price and inventory of SMBJ16AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16AHM3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ16AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16AHM3_B/H?
SMBJ16AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16AHM3_B/H 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_B/H?
For technical support, including SMBJ16AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ16AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ16AHM3_B/H 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_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ16AHM3_B/H?
All SMBJ16AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16AHM3_B/H, 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_B/H part is unused and in its original packaging.
Return procedure for SMBJ16AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16AHM3_B/H Tags
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