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Vishay General Semiconductor - Diodes Division SMBJ100CD-M3/I
- Part No.:
- SMBJ100CD-M3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CD-M3/I.pdf
- Description:
- TVS DIODE 100VWM 159VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,442
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Product details
Overview
SMBJ100CD-M3/I 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 power and signal lines. It features a 100 V stand-off voltage (VWM), 113–121 V breakdown voltage (VBR) at 1 mA, 159 V maximum clamping voltage (VC) at 3.77 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the SMBJ100CD-M3/I datasheet, SMBJ100CD-M3/I pinout, SMBJ100CD-M3/I application, or SMBJ100CD-M3/I equivalent, this device is selected for robust overvoltage protection in industrial power supplies, telecom interface circuits, automotive body electronics, and sensor signal conditioning where bidirectional surge immunity and low leakage (<0.5 μA at VWM) are critical.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating lines without polarity constraints. Its silicon avalanche structure delivers sub-nanosecond response time and low dynamic impedance, ensuring effective clamping during fast-rising ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Thermal resistance is 125 °C/W (junction-to-ambient, mounted on minimum pad layout) and 20 °C/W (junction-to-mount), supporting reliable operation under repetitive surge conditions when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse stand-off voltage before significant conduction begins; defines safe operating margin below clamping threshold. |
| VBR min/max | 113 V / 121 V at 1 mA - Tight ±3.5 % tolerance ensures predictable turn-on across production lots and temperature range. |
| VC @ IPPM | 159 V at 3.77 A - Clamping voltage under 10/1000 μs surge; limits downstream voltage stress to protected ICs or MOSFETs. |
| PPPM | 600 W - Peak pulse power handling capability with standard 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 compliance when applied correctly. |
| ID @ VWM | <0.5 μA - Extremely low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | 150 °C - Enables deployment in under-hood automotive or industrial environments without thermal derating concerns up to ambient 85 °C. |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly; halogen-free, RoHS-compliant, and JESD201 Class 2 whisker-resistant. |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no cathode band; symmetrical terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal serves as anode or cathode depending on instantaneous polarity; enables bidirectional clamping without orientation dependency. |
| Cathode Band (absent) | Polarity indicator | Not present - confirms bidirectional functionality; PCB layout requires no polarity alignment during placement. |
Key Features
| Feature | Design Value |
|---|---|
| ±3.5 % VBR tolerance | Ensures consistent clamping behavior across batches and temperatures, reducing design margin uncertainty in safety-critical protection schemes. |
| 600 W PPPM (10/1000 μs) | Supports high-energy surge suppression per IEC 61000-4-5, suitable for mains-connected equipment and long-line interfaces. |
| MSL Level 1 rating | Enables single-pass reflow without moisture sensitivity concerns; eliminates baking requirement and simplifies SMT line integration. |
| <0.5 μA ID at VWM | Minimizes loading on high-impedance sensor outputs or reference lines, preserving accuracy and reducing quiescent current in battery-powered systems. |
| SMB package with matte tin leads | Provides reliable solderability per J-STD-002 and JESD22-B102; compatible with lead-free and SnPb processes without intermetallic reliability risk. |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: Protecting DC input rails of programmable logic controllers (PLCs) against load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at board edge before upstream DC-DC converter input. Use Value: Limits transient voltage to ≤159 V, preventing damage to 100 V-rated input capacitors and controller ICs while maintaining <0.5 μA leakage at nominal 96 V bus. |
Use Scenario: Shielding RS-485 transceiver I/O pins from ESD and induced surges on field wiring in building automation networks. IC Role / Device Role / Timing Role: Primary front-end TVS on differential pair, positioned before common-mode choke and transceiver ESD diodes. Use Value: Clamps ±15 kV contact ESD (IEC 61000-4-2) and 1 kV ring wave (IEC 61000-4-5) without degrading signal integrity due to low capacitance and symmetrical response. |
| Automotive Body Control Module | Industrial Sensor Signal Conditioning |
Use Scenario: Safeguarding LIN bus nodes and LED driver inputs against battery reverse connection and jump-start spikes in vehicle interior modules. IC Role / Device Role / Timing Role: Bidirectional TVS on 12 V supply rail and LIN data line, co-located with local decoupling. Use Value: Withstands 125 °C ambient and 150 °C junction temperature; clamps 100 V transients to 159 V within nanoseconds, protecting 3.3 V microcontroller I/O via series resistor. |
Use Scenario: Protecting analog output of 4–20 mA current loop transmitters from wiring faults and nearby motor switching noise. IC Role / Device Role / Timing Role: Shunt protector across loop output terminals, referenced to system ground with minimal parasitic capacitance. Use Value: Delivers stable 100 V standoff and <0.5 μA leakage to avoid disturbing loop calibration; SMB footprint allows placement directly at connector entry point. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100CA-E3/52 (Vishay) | Same VWM/VBR/VC specs, but M3 suffix replaced by E3/52 - halogen-free and RoHS-compliant, yet not explicitly rated for JESD201 Class 2 whisker resistance. | Approved for general industrial use but lacks documented whisker test validation required for high-reliability automotive or aerospace deployments. | Select SMBJ100CA-E3/52 only if whisker resistance is not mandated and cost optimization is prioritized. |
| 1.5SMC100CA (ON Semiconductor) | Same 100 V VWM and bidirectional function, but in larger SMC (DO-214AB) package - 2.5 mm wider, requiring PCB layout change; 600 W rating maintained. | Higher thermal mass supports longer surge duration but incompatible with space-constrained SMB footprints; not drop-in replaceable. | Choose 1.5SMC100CA only when enhanced thermal dissipation justifies redesigning the pad layout and increasing board area. |
Compared with SMBJ100CD-M3/I, SMBJ100CA-E3/52 offers identical electrical performance but reduced process qualification for whisker resistance, while 1.5SMC100CA provides equal surge capability in a physically incompatible package - making SMBJ100CD-M3/I the optimal choice for new designs demanding MSL Level 1, JESD201 Class 2, and strict footprint control.
Availability
SMBJ100CD-M3/I is available at Aetrix Electronics and suitable for industrial power supplies, telecom interface protection, and automotive body electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SMBJ100CD-M3/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, precision, and application-specific optimization.
The SMBJ series was engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where consistent clamping, low leakage, and robust packaging are non-negotiable.
FAQ
What is the clamping voltage of SMBJ100CD-M3/I at its rated peak pulse current?
The SMBJ100CD-M3/I has a maximum clamping voltage (VC) of 159 V at its specified peak pulse current (IPPM) of 3.77 A, measured using the standard 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and ensures predictable overvoltage limiting for downstream components in the SMBJ100CD-M3/I protection circuit.
Is SMBJ100CD-M3/I suitable for bidirectional signal line protection?
Yes, SMBJ100CD-M3/I is explicitly designed for bidirectional applications, as indicated by the "CD" suffix. Its symmetrical breakdown characteristics allow it to clamp transients of either polarity equally - making it ideal for protecting AC-coupled interfaces like RS-485, CAN FD, or audio lines where polarity reversal may occur. The absence of a cathode band confirms its bidirectional construction.
Does SMBJ100CD-M3/I meet automotive-grade reliability requirements?
SMBJ100CD-M3/I meets key automotive reliability criteria: it is rated for −55 °C to +150 °C operating junction temperature, qualified to MSL Level 1 (260 °C reflow), and passes JESD201 Class 2 whisker testing. While not AEC-Q200 certified out-of-box, its material composition, thermal robustness, and process controls make it widely deployed in non-safety-critical automotive body electronics where SMBJ100CD-M3/I's performance envelope aligns with system-level stress profiles.
How does the M3 suffix affect the specifications of SMBJ100CD-M3/I?
The M3 suffix denotes halogen-free, RoHS-compliant construction with matte tin-plated leads that satisfy J-STD-002 solderability and JESD22-B102 mechanical durability standards. Crucially, M3 also certifies compliance with JESD201 Class 2 whisker resistance - a critical reliability enhancement for long-life industrial and automotive applications where tin whisker growth could cause latent field failures in the SMBJ100CD-M3/I assembly.
Can SMBJ100CD-M3/I be used in place of unidirectional SMBJ100D-M3/I?
No - SMBJ100CD-M3/I is bidirectional and lacks a cathode band, whereas SMBJ100D-M3/I is unidirectional with defined polarity. Substituting them requires verifying circuit topology: SMBJ100CD-M3/I works only where symmetrical clamping is needed (e.g., AC lines or floating references), while SMBJ100D-M3/I is mandatory for DC rails where reverse-bias blocking is essential. Using SMBJ100CD-M3/I in a unidirectional design risks unintended conduction during normal operation.
SMBJ100CD-M3/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 113V
- Voltage - Clamping (Max) @ Ipp:
- 159V
- Current - Peak Pulse (10/1000µs):
- 3.77A
- 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)
SMBJ100CD-M3/I FAQ
1.How can I place an order for SMBJ100CD-M3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CD-M3/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 SMBJ100CD-M3/I reliable?
The price and inventory of SMBJ100CD-M3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CD-M3/I is usually 5 days.
3.What payment methods are accepted for SMBJ100CD-M3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CD-M3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CD-M3/I?
SMBJ100CD-M3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CD-M3/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 SMBJ100CD-M3/I?
For technical support, including SMBJ100CD-M3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CD-M3/I requirements.
6.How does Aetrix verify that SMBJ100CD-M3/I is sourced from the original manufacturer or authorized distributors?
All SMBJ100CD-M3/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 SMBJ100CD-M3/I meets industry standards.
7.What is the process for return or replacement of SMBJ100CD-M3/I?
All SMBJ100CD-M3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CD-M3/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 SMBJ100CD-M3/I part is unused and in its original packaging.
Return procedure for SMBJ100CD-M3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CD-M3/I Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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