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Vishay General Semiconductor - Diodes Division SMBJ11CD-M3/H
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- Part No.:
- SMBJ11CD-M3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ11CD-M3/H.pdf
- Description:
- TVS DIODE 11VWM 17.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,036
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Product details
Overview
SMBJ11CD-M3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 12.4 V to 13.3 V breakdown voltage (VBR) at 1 mA test current, 11 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), and clamps to ≤17.9 V at 33.5 A peak surge current - ideal for protecting I/O ports and sensor interfaces in industrial control systems.
For engineers reviewing the SMBJ11CD-M3/H datasheet, SMBJ11CD-M3/H pinout, SMBJ11CD-M3/H application, or SMBJ11CD-M3/H equivalent, key selection criteria include bidirectional clamping capability, ±3.5% VBR tolerance, MSL Level 1 moisture sensitivity, halogen-free RoHS-compliant construction, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling robust ESD and surge suppression without polarity constraints. Its low incremental surge resistance and fast response time (<1 ns) ensure effective transient energy diversion before downstream ICs experience overvoltage stress.
The SMBJ11CD-M3/H is rated for -55 °C to +150 °C junction temperature, with thermal resistance RθJA of 125 °C/W (on minimum pad) and 100 °C/W (on 5 mm × 5 mm copper), supporting reliable operation under repetitive surge conditions when properly mounted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 12.4 V to 13.3 V at 1 mA - defines precise clamping onset threshold for bidirectional surges |
| VWM | 11 V - maximum continuous reverse voltage before leakage exceeds 0.5 μA |
| IPPM | 33.5 A (10/1000 μs waveform) - peak surge current it safely diverts without failure |
| VC @ IPPM | ≤17.9 V - clamped voltage seen by protected circuit during full-rated surge |
| PPPM | 600 W - transient power handling capacity per single 10/1000 μs pulse |
| Leakage @ VWM | ≤0.5 μA - ensures minimal loading on low-power signal lines at operating voltage |
| Package | SMB (DO-214AA) - industry-standard SMT outline with 2.20 mm height and 5.59 mm length |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no cathode band marking. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No polarity designation - either end serves as anode or cathode depending on transient polarity |
| Cathode Band | Not present | Confirms bidirectional functionality; terminals are electrically identical |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Enables tighter system-level overvoltage margin control versus looser-tolerance TVS devices |
| 600 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) with margin |
| MSL Level 1 rating (260 °C peak reflow) | Allows single-pass lead-free reflow without moisture-induced popcorn failure |
| Halogen-free, RoHS-compliant, industrial grade | Meets environmental compliance requirements for global industrial and telecom deployments |
| Low leakage (≤0.5 μA @ VWM) | Preserves signal integrity and battery life in always-on sensor and IoT node applications |
Applications
| Industrial Motor Control | Automotive Body Electronics |
|---|---|
|
Use Scenario: Protecting gate drivers and encoder feedback lines from inductive kickback during MOSFET switching in PLC output modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across motor driver outputs and ground return paths. Use Value: Limits transient voltage to ≤17.9 V, preventing latch-up or gate oxide damage in 12 V–24 V control circuits. |
Use Scenario: Safeguarding LIN bus transceivers and door module microcontrollers against load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary board-level TVS on LIN data lines and power inputs of body control units. Use Value: Withstands 33.5 A surge current while maintaining sub-μA leakage, ensuring bus reliability without signal distortion. |
| Telecom Power Interface | Consumer Sensor Hub |
|
Use Scenario: Front-end protection for 48 V DC power inputs in PoE-powered network switches and base stations. IC Role / Device Role / Timing Role: Secondary surge clamp after primary GDT or MOV, absorbing residual fast transients. Use Value: Clamps 10/1000 μs surges to ≤17.9 V within nanoseconds, preserving upstream DC-DC converter input stage integrity. |
Use Scenario: ESD protection for I²C and analog sensor inputs (e.g., temperature, humidity) in smart home hubs. IC Role / Device Role / Timing Role: Point-of-entry TVS on each sensor trace, placed adjacent to connector or IC pin. Use Value: Sub-μA leakage avoids bias current errors; 12.4–13.3 V VBR aligns with 3.3 V/5 V rail protection without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA-E3/52 (Vishay) | Same VBR, VWM, PPPM; differs in packaging (tape-and-reel vs. bulk) and M3 suffix (halogen-free vs. standard) | Identical electrical performance; used where halogen-free requirement is not mandated | Select SMBJ11CD-M3/H when RoHS/halogen-free compliance and JESD 201 Class 2 whisker resistance are required. |
| 1.5SMC11CA (ON Semiconductor) | Same SMB package, bidirectional, 11 V VWM, but wider VBR tolerance (±5 %) and higher leakage (≤1 μA) | Lower cost alternative where tighter VBR control and ultra-low leakage are non-critical | Choose SMBJ11CD-M3/H for designs requiring guaranteed ±3.5 % VBR and <0.5 μA leakage at VWM. |
Compared with SMBJ11CA-E3/52 and 1.5SMC11CA, the SMBJ11CD-M3/H delivers tighter breakdown tolerance, lower leakage, and certified halogen-free construction - making it preferred for high-reliability industrial and telecom applications where long-term stability and regulatory compliance are critical.
Availability
SMBJ11CD-M3/H is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, and telecom power interface designs requiring stable component supply, consistent surge performance, and full regulatory compliance.
Supply support for SMBJ11CD-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, rectifiers, TVS devices, and power MOSFETs for high-reliability applications.
The SMBJ series was engineered specifically for robust, surface-mount transient suppression in harsh environments - targeting industrial automation, automotive subsystems, and infrastructure equipment where repeatable clamping and long-term stability are essential.
FAQ
What is the breakdown voltage range of SMBJ11CD-M3/H?
The SMBJ11CD-M3/H has a specified breakdown voltage (VBR) range of 12.4 V to 13.3 V at 1 mA test current, with ±3.5 % tolerance. This tight specification ensures predictable clamping behavior across manufacturing lots and temperature ranges, directly supporting design margin calculations for 12 V nominal systems.
Is SMBJ11CD-M3/H unidirectional or bidirectional?
SMBJ11CD-M3/H is a bidirectional TVS diode, indicated by the "CD" suffix and absence of a cathode band. It provides symmetrical clamping in both polarities, making it suitable for AC-coupled lines, differential buses like LIN or RS-485, and any application where voltage transients may occur with either polarity relative to ground.
What does the "-M3/H" suffix mean in SMBJ11CD-M3/H?
The "-M3" denotes halogen-free, RoHS-compliant, industrial-grade construction meeting JESD 201 Class 2 whisker resistance; "/H" specifies packaging in 7" diameter plastic tape and reel with 750 units per reel. This suffix confirms compliance with environmental standards and supports automated SMT assembly without reflow defects.
Can SMBJ11CD-M3/H replace SMBJ11A or SMBJ11CA?
No - SMBJ11CD-M3/H is bidirectional, whereas SMBJ11A is unidirectional and SMBJ11CA is bidirectional but lacks the M3 halogen-free and Class 2 whisker qualifications. Substitution requires verification of polarity, leakage, thermal derating, and compliance requirements; direct replacement is not assured without design validation.
What is the maximum clamping voltage of SMBJ11CD-M3/H at rated surge current?
At its rated peak pulse current of 33.5 A (10/1000 μs waveform), the SMBJ11CD-M3/H clamps to a maximum of 17.9 V. This value is critical for determining whether downstream components - such as 16 V-rated capacitors or 20 V-input regulators - remain within safe operating limits during surge events.
SMBJ11CD-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ11CD-M3/H FAQ
1.How can I place an order for SMBJ11CD-M3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ11CD-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 SMBJ11CD-M3/H reliable?
The price and inventory of SMBJ11CD-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 SMBJ11CD-M3/H is usually 5 days.
3.What payment methods are accepted for SMBJ11CD-M3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ11CD-M3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ11CD-M3/H?
SMBJ11CD-M3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ11CD-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 SMBJ11CD-M3/H?
For technical support, including SMBJ11CD-M3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ11CD-M3/H requirements.
6.How does Aetrix verify that SMBJ11CD-M3/H is sourced from the original manufacturer or authorized distributors?
All SMBJ11CD-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 SMBJ11CD-M3/H meets industry standards.
7.What is the process for return or replacement of SMBJ11CD-M3/H?
All SMBJ11CD-M3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ11CD-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 SMBJ11CD-M3/H part is unused and in its original packaging.
Return procedure for SMBJ11CD-M3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ11CD-M3/H Tags
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