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Vishay General Semiconductor - Diodes Division SMBJ11D-M3/H
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- Part No.:
- SMBJ11D-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ11D-M3/H.pdf
- Description:
- TVS DIODE 11VWM 17.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,444
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Product details
Overview
SMBJ11D-M3/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, with 11 V stand-off voltage (VWM), 12.4–13.3 V breakdown voltage (VBR) at 1 mA, 17.9 V clamping voltage (VC) at 33.5 A peak pulse current, and 600 W peak pulse power rating (10/1000 μs waveform). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in industrial and telecom power interfaces.
For engineers reviewing the SMBJ11D-M3/H datasheet, SMBJ11D-M3/H pinout, SMBJ11D-M3/H application, or SMBJ11D-M3/H equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under surge, polarity marking convention, and RoHS-compliant M3-grade packaging for production-grade ESD protection design-in.
Technical Context
The SMBJ11D-M3/H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 12.4–13.3 V breakdown threshold, clamping transients to ≤17.9 V at 33.5 A. Its low 1.0 W power dissipation at 25 °C ambient and 5.0 W at 50 °C case temperature reflects thermal limits defined by junction-to-ambient resistance (125 °C/W) and junction-to-mount resistance (20 °C/W).
Designed for automated SMT placement, it features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and carries halogen-free, RoHS-compliant M3 suffix with JESD 201 Class 2 whisker resistance. Polarity is marked by a cathode band on the device body.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 12.4 V / 13.3 V at 1 mA - tight ±3.5 % tolerance ensures predictable turn-on across production lots |
| VC @ IPPM | 17.9 V at 33.5 A - clamping voltage during 10/1000 μs surge defines protected circuit's worst-case overvoltage |
| PPPM | 600 W - peak transient power handling capability under standardized 10/1000 μs waveform |
| ID @ VWM | 2.0 μA - ultra-low leakage preserves signal integrity and minimizes standby power loss |
| TJ max | +150 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| RθJA | 125 °C/W - thermal resistance from junction to ambient on minimum recommended PCB pad layout |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, M3-grade matte tin terminals. Cathode indicated by molded band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional protection configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., VCC or signal); conducts avalanche current when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables precise, repeatable clamping onset across manufacturing batches without system-level margin adjustment |
| 600 W PPPM (10/1000 μs) | Withstands high-energy surges common in 24 V industrial control and telecom power rails |
| 17.9 V VC at 33.5 A | Clamps fast transients below logic-level damage thresholds for 3.3 V/5 V interface ICs and microcontrollers |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture-related popcorning or delamination |
| M3-grade whisker-resistant plating | Ensures long-term solder joint reliability in automotive and industrial applications with thermal cycling |
Applications
| Industrial PLC I/O Protection | Telecom Power Input Stage |
|---|---|
Use Scenario: Protecting 24 V DC input terminals of programmable logic controllers against load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive-going transients. Use Value: Limits voltage excursion to ≤17.9 V during 33.5 A surges, preventing damage to upstream DC-DC converters and isolation amplifiers. | Use Scenario: Safeguarding primary-side rectifier outputs in telecom AC/DC front-ends exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 600 W pulses without thermal runaway. Use Value: Maintains 11 V nominal operation while clamping 10/1000 μs transients to safe levels for downstream SiC MOSFET gate drivers. |
| Automotive Body Control Module | Sensor Signal Line Protection |
Use Scenario: Shielding LIN bus power pins in body control modules from battery reversal and jump-start spikes. IC Role / Device Role / Timing Role: Unidirectional clamping device connected anode-to-ground, cathode-to-VBAT line. Use Value: Withstands 150 °C junction temperature and provides <2 μA leakage to avoid draining standby batteries. | Use Scenario: Guarding analog output lines of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector entry point to shunt ESD before reaching ADC input. Use Value: Delivers sub-20 V clamping at 33.5 A with minimal signal distortion due to fast response and low dynamic impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-M3/H | Same VWM (11 V), but bidirectional; symmetric clamping in both polarities | Required where AC-coupled or dual-polarity signal lines need protection (e.g., RS-485, CAN) | Select SMBJ11A-M3/H only if bidirectional clamping is explicitly required; SMBJ11D-M3/H is optimal for DC rail protection. |
| P6SMB11AHE3/TR13 | Same SMB package, 11 V VWM, but Vishay P6SMB series has higher 600 W PPPM and tighter 5 % VBR tolerance (vs. ±3.5 %) | Identical use cases but slightly relaxed VBR consistency; suitable for cost-sensitive volume designs | Choose P6SMB11AHE3/TR13 when VBR tolerance margin is acceptable and supply chain diversification is prioritized. |
Compared with SMBJ11A-M3/H, the SMBJ11D-M3/H offers superior unidirectional clamping precision and lower leakage, making it preferred for DC power rail protection; versus P6SMB11AHE3/TR13, it delivers tighter VBR control and M3-grade whisker resistance, critical for long-life industrial deployments.
Availability
SMBJ11D-M3/H is available at Aetrix Electronics and suitable for industrial PLC I/O protection, telecom power input stages, and automotive body control module designs requiring stable component supply, RoHS compliance, and MSL Level 1 reflow compatibility.
Supply support for SMBJ11D-M3/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and high-volume manufacturability.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, high-power transient suppression in harsh industrial, automotive, and telecom environments where consistent clamping and long-term stability are mandatory.
FAQ
What is the breakdown voltage range of SMBJ11D-M3/H at 1 mA test current?
The SMBJ11D-M3/H has a guaranteed breakdown voltage (VBR) range of 12.4 V to 13.3 V at 1 mA test current, reflecting a tight ±3.5 % tolerance. This specification is measured per ANSI/IEEE C62.35 standards and ensures consistent turn-on behavior across production units. The SMBJ11D-M3/H maintains this VBR window under controlled thermal conditions and is validated using the 10/1000 μs surge waveform protocol specified in the Vishay datasheet 87606.
How does SMBJ11D-M3/H perform under repeated surge stress?
The SMBJ11D-M3/H supports repetitive surge events at a 0.01 % duty cycle, meaning it can handle one 10/1000 μs pulse every 10 seconds indefinitely without degradation-provided junction temperature remains within −55 °C to +150 °C. Its 600 W peak pulse power rating applies under this condition, and thermal derating curves (Fig. 2 in datasheet 87606) define safe operation above 25 °C ambient. The SMBJ11D-M3/H achieves this via low incremental surge resistance and optimized silicon geometry.
Is SMBJ11D-M3/H compatible with lead-free reflow soldering processes?
Yes, SMBJ11D-M3/H is fully compatible with lead-free reflow soldering, meeting MSL Level 1 per J-STD-020 with a maximum peak temperature of 260 °C. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 for solderability, and the M3 suffix confirms JESD 201 Class 2 whisker resistance. The SMBJ11D-M3/H has been qualified for standard 240–260 °C reflow profiles used in high-reliability industrial PCB assembly.
What is the maximum clamping voltage of SMBJ11D-M3/H during a 33.5 A transient?
The SMBJ11D-M3/H exhibits a maximum clamping voltage (VC) of 17.9 V when subjected to its rated 33.5 A peak pulse current (IPPM) under the 10/1000 μs waveform. This value is measured at the device terminals and represents the worst-case overvoltage seen by downstream circuitry. The SMBJ11D-M3/H achieves this low VC through low dynamic impedance and optimized avalanche structure, ensuring protection of 3.3 V and 5 V logic interfaces.
Does SMBJ11D-M3/H have polarity marking, and how is it oriented in circuit?
Yes, SMBJ11D-M3/H uses a molded cathode band to indicate polarity: the banded end is the cathode and must be connected to the line being protected (e.g., VCC or signal), while the unmarked end is the anode and connects to ground or return. This orientation enables unidirectional clamping-conducting only during positive transients on the protected line. The SMBJ11D-M3/H's polarity marking is visible under standard optical inspection and aligns with IPC-A-610 acceptance criteria for SMT diodes.
SMBJ11D-M3/H 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):
- 11V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 17.9V
- Current - Peak Pulse (10/1000µs):
- 33.5A
- 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)
SMBJ11D-M3/H FAQ
1.How can I place an order for SMBJ11D-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ11D-M3/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 SMBJ11D-M3/H reliable?
The price and inventory of SMBJ11D-M3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ11D-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ11D-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ11D-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ11D-M3/H?
SMBJ11D-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ11D-M3/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 SMBJ11D-M3/H?
For technical support, including SMBJ11D-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ11D-M3/H requirements.
6.How does Aetrix verify that SMBJ11D-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ11D-M3/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 SMBJ11D-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ11D-M3/H?
All SMBJ11D-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ11D-M3/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 SMBJ11D-M3/H part is unused and in its original packaging.
Return procedure for SMBJ11D-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ11D-M3/H Tags
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