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Vishay General Semiconductor - Diodes Division SMBJ16A-M3/5B
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- Part No.:
- SMBJ16A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ16A-M3/5B.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,024
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Product details
Overview
SMBJ16A-M3/5B 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), 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform), commonly deployed on DC power rails and I/O lines of industrial sensor interfaces.
For engineers reviewing the SMBJ16A-M3/5B datasheet, SMBJ16A-M3/5B pinout, SMBJ16A-M3/5B application, or SMBJ16A-M3/5B equivalent, key selection criteria include its 1.0 µA max reverse leakage at VWM, -55 °C to +150 °C operating junction temperature range, halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device: under normal bias it presents high impedance above 16 V reverse stand-off, then rapidly transitions to low-impedance conduction when transients exceed its 17.8–19.7 V breakdown voltage (VBR at 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns).
The SMBJ16A-M3/5B delivers 600 W surge handling per 10/1000 µs waveform with 0.01 % duty cycle, supported by low incremental surge resistance and thermal resistance of 100 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 16 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 17.8–19.7 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering without premature conduction |
| VC (Clamping Voltage) | 26.0 V at 23.1 A - Peak voltage seen by protected circuit during full-rated surge; limits stress on downstream ICs |
| IPPM (Peak Pulse Current) | 23.1 A (10/1000 µs) - Surge current capacity defining protection level against common lightning/inductive transients |
| PPPM (Peak Pulse Power) | 600 W - Transient energy absorption capability; validated per ANSI/IEEE C62.35 standards |
| ID (Max Reverse Leakage) | 1.0 µA at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJmax | +150 °C - Enables operation in under-hood automotive, industrial motor drives, and enclosed power supplies |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads solderable per J-STD-002/JESD 22-B102, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to system ground or low-side reference; completes clamping loop during overvoltage events |
| Cathode | Protected line connection / high-side terminal | Connected to the line being protected (e.g., 12 V rail); cathode band denotes this end per JEDEC DO-214AA convention |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges on 12–24 V systems |
| 26.0 V clamping at 23.1 A | Keeps protected MOSFET gate drivers and microcontroller I/O within absolute maximum ratings during transients |
| 1.0 µA max reverse leakage at 16 V | Prevents measurable current drain in battery-backed or ultra-low-power sensor nodes |
| MSL Level 1, 260 °C peak reflow | Supports lead-free reflow assembly without preconditioning or special handling |
| Halogen-free, RoHS-compliant (M3) | Fulfills environmental compliance requirements for industrial and automotive supply chains |
Applications
| Industrial Sensor Interface Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
|
Use Scenario: 24 V CAN/LIN bus sensor nodes exposed to load dump and inductive switching noise in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp positive-going transients on power input. Use Value: Limits voltage excursion to ≤26.0 V during 23.1 A surges, preventing latch-up or oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: 12 V supply rail in BCM modules subjected to ISO 7637-2 pulse 1 (inductive kick) and pulse 5a (load dump). IC Role / Device Role / Timing Role: Primary clamping device on main power input, upstream of DC/DC converters and MCU regulators. Use Value: Absorbs 600 W transient energy without degradation, maintaining system uptime during vehicle alternator regulation faults. |
| Consumer Appliance Motor Drive Board | Telecom PoE-Powered Device Port |
|
Use Scenario: Brushed DC motor control board in smart HVAC units, where relay coil de-energization induces >100 V spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals to suppress back-EMF before reaching driver ICs. Use Value: Clamps transients within 1 ns, reducing EMI emissions and eliminating need for snubber RC networks. |
Use Scenario: Data + power port of IEEE 802.3af/at-powered access point, requiring immunity to Ethernet cable ESD and surge coupling. IC Role / Device Role / Timing Role: Secondary-level TVS on PSE-facing side of isolation transformer, complementing primary front-end protection. Use Value: Provides precise 26.0 V clamping to safeguard PHY transceivers while meeting UL 497B protector classification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A-E3/5B | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3) | Acceptable for commercial-grade designs without halogen restrictions | Select when halogen-free certification is not required and cost optimization is prioritized |
| SMBJ16CA-M3/5B | Bidirectional variant; symmetric VBR = 17.8–19.7 V; same VC = 26.0 V | Required for AC-coupled or dual-polarity signal lines (e.g., RS-485, USB D+/D−) | Choose only if protecting bidirectional signals; unidirectional SMBJ16A-M3/5B is more efficient for DC rails |
Compared with SMBJ16A-E3/5B, the M3 version adds halogen-free compliance without performance trade-offs; versus SMBJ16CA-M3/5B, the unidirectional SMBJ16A-M3/5B offers lower capacitance and tighter leakage control for DC power applications.
Availability
SMBJ16A-M3/5B is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and consumer appliance motor drive boards requiring stable component supply and halogen-free compliance.
Supply support for SMBJ16A-M3/5B 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, power efficiency, and automotive qualification.
The SMBJ series was engineered for high-energy transient suppression in harsh environments, targeting industrial automation, automotive electronics, and telecom infrastructure where robustness and long-term stability are critical.
FAQ
What is the clamping voltage of SMBJ16A-M3/5B at its rated peak pulse current?
The SMBJ16A-M3/5B has a maximum clamping voltage (VC) of 26.0 V when subjected to its rated peak pulse current of 23.1 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 26.0 V during surge events. The SMBJ16A-M3/5B maintains this clamping performance across its full operating temperature range of -55 °C to +150 °C.
Is SMBJ16A-M3/5B suitable for automotive applications?
SMBJ16A-M3/5B is halogen-free and RoHS-compliant but not AEC-Q101 qualified. For automotive use, Vishay offers the HM3-suffixed variant (e.g., SMBJ16A-HM3/5B), which adds AEC-Q101 qualification. The SMBJ16A-M3/5B remains appropriate for non-safety-critical automotive subsystems like infotainment power rails where qualification is not mandated, provided thermal and surge margins are verified per ISO 7637-2.
How does the M3 suffix differ from E3 in SMBJ16A-M3/5B?
The M3 suffix indicates halogen-free, RoHS-compliant construction, whereas E3 denotes RoHS-compliant but standard brominated flame-retardant molding compound. Both share identical electrical specifications, package dimensions, and thermal performance. The SMBJ16A-M3/5B meets stricter environmental requirements for markets like EU industrial equipment and green consumer electronics where halogen content is regulated.
What is the reverse leakage current of SMBJ16A-M3/5B at its stand-off voltage?
At its 16 V stand-off voltage (VWM), the SMBJ16A-M3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This low leakage ensures minimal power loss in always-on circuits and preserves signal integrity in high-impedance sensor bias networks. Leakage increases with temperature but remains below 10 µA up to 85 °C per Vishay's derating curves.
Can SMBJ16A-M3/5B be used in bidirectional signal protection?
No - SMBJ16A-M3/5B is strictly unidirectional and must be oriented with its cathode band toward the protected line. For bidirectional signal lines such as RS-485 or USB, the SMBJ16CA-M3/5B variant is required. Using the unidirectional SMBJ16A-M3/5B on AC-coupled paths risks forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
SMBJ16A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ16A-M3/5B FAQ
1.How can I place an order for SMBJ16A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ16A-M3/5B 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 SMBJ16A-M3/5B reliable?
The price and inventory of SMBJ16A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ16A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ16A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ16A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ16A-M3/5B?
SMBJ16A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ16A-M3/5B 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 SMBJ16A-M3/5B?
For technical support, including SMBJ16A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ16A-M3/5B requirements.
6.How does Aetrix verify that SMBJ16A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ16A-M3/5B 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 SMBJ16A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ16A-M3/5B?
All SMBJ16A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ16A-M3/5B, 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 SMBJ16A-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ16A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ16A-M3/5B Tags
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