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Vishay General Semiconductor - Diodes Division SMBJ100CAHE3_B/I
- Part No.:
- SMBJ100CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100CAHE3_B/I.pdf
- Description:
- 600W,100V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,499
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Product details
Overview
SMBJ100CAHE3_B/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features 100 V standoff voltage (VWM), 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ100CAHE3_B/I datasheet, SMBJ100CAHE3_B/I pinout, SMBJ100CAHE3_B/I application, or SMBJ100CAHE3_B/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and bidirectional clamping behavior critical for ESD/surge co-design in high-reliability systems.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance mandates careful PCB copper pad sizing per Vishay's 0.2" × 0.2" (5.0 mm × 5.0 mm) recommendation.
The device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, and its AEC-Q101 qualification (denoted by HE3 suffix) confirms suitability for automotive under-hood and infotainment power rail protection where repetitive surge immunity and long-term reliability are mandatory.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 111–123 V at 1 mA - Confirmed bidirectional breakdown threshold; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 162 V at IPPM = 3.7 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized surge waveform; validates IEC 61000-4-5 level 4 compliance potential. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in engine bay or industrial enclosures without derating below 125 °C ambient. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient on standard pad layout; informs minimum copper area needed for thermal management. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including temperature cycling, humidity bias, and mechanical shock per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Accepts reverse surge current during negative transients; forms symmetrical conduction path with cathode. |
| Cathode | Transient current entry (positive half-cycle) | Accepts forward surge current during positive transients; completes bidirectional clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 combination wave surges up to 1 kV/42 Ω without cascading devices. |
| AEC-Q101 qualified (HE3 suffix) | Validates reliability for automotive power electronics including BCMs, ADAS camera power inputs, and infotainment USB-C ports. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), preserving signal integrity on 12 V/24 V rails. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures stable VBR over lifetime and temperature, critical for maintaining clamping consistency in industrial PLC I/O modules. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 48 V DC bus against switching transients from IGBT gate drivers and contactor coil de-energization. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input capacitor to clamp ±1.2 kV surges within 1 ns response time. Use Value: Limits voltage excursion to ≤162 V, preventing damage to upstream DC-DC controllers and downstream FPGA power sequencing ICs. |
Use Scenario: Input-stage surge suppression on AC/DC front-end rectifier outputs feeding -48 V telecom distribution boards. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive lightning-induced surges on primary-side bulk capacitors. Use Value: Maintains 100 V VWM margin above nominal -48 V rail, ensuring no false triggering during normal ripple or brownout conditions. |
| Automotive Body Control Modules | Consumer Appliance Control Boards |
Use Scenario: CAN-FD and LIN bus line protection in BCMs exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Bidirectional clamping element on 12 V supply rail feeding CAN transceivers and microcontrollers. Use Value: Withstands 100 ms load dump pulses up to 35 V while clamping fast transients to <162 V, meeting ISO 16750-2 Class D. |
Use Scenario: Overvoltage safeguard on 24 V auxiliary power rail in smart washing machine main control board. IC Role / Device Role / Timing Role: Primary TVS on relay driver output stage protecting MCU GPIOs and optocouplers. Use Value: Absorbs inductive kickback from solenoid valves (≤600 W) without degradation, extending board field life beyond 10 years. |
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-M3 | No AEC-Q101 qualification; halogen-free RoHS-compliant only. | Restricted to commercial/industrial use; not approved for automotive production. | Select when AEC-Q101 is unnecessary and halogen-free compliance is required. |
| SMCJ100CAHE3_A/H | Larger SMC (DO-214AB) package; higher RθJA (50 °C/W) but same VWM/VC specs. | Better thermal handling for >5 W average dissipation; requires larger PCB footprint. | Choose when higher sustained surge duty cycle or improved thermal margin is needed despite larger size. |
Compared with SMBJ100CAHE3_B/I, SMBJ100CA-M3 lacks automotive qualification but offers identical electrical performance for cost-sensitive industrial designs, while SMCJ100CAHE3_A/H trades compactness for superior thermal robustness - making SMBJ100CAHE3_B/I optimal for space-constrained AEC-Q101-compliant applications.
Availability
SMBJ100CAHE3_B/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ100CAHE3_B/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, efficiency, and application-specific validation.
The SMBJ series targets high-energy transient suppression in space-constrained, high-reliability environments - engineered specifically for automotive, industrial, and telecom systems needing AEC-Q101-qualified, bidirectional TVS solutions in SMB footprint.
FAQ
What does the "CA" suffix indicate in SMBJ100CAHE3_B/I?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ100CAHE3_B/I clamps voltage transients equally in both polarities - unlike unidirectional variants (e.g., SMBJ100A) that protect only one polarity. This makes SMBJ100CAHE3_B/I ideal for AC-coupled lines, differential buses like CAN, or any application where voltage reversals occur.
Is SMBJ100CAHE3_B/I suitable for automotive applications?
Yes - SMBJ100CAHE3_B/I carries the HE3 suffix, confirming AEC-Q101 qualification per Vishay's ordering nomenclature. It has passed rigorous automotive stress tests including temperature cycling, humidity bias, and mechanical shock, making it approved for use in body control modules, infotainment systems, and other non-safety-critical automotive electronics.
What is the maximum clamping voltage of SMBJ100CAHE3_B/I and at what current is it specified?
The maximum clamping voltage (VC) of SMBJ100CAHE3_B/I is 162 V, measured at a peak pulse current (IPPM) of 3.7 A using the standardized 10/1000 µs waveform. This value defines the worst-case voltage imposed on protected circuitry during surge events and is critical for ensuring downstream components remain within their absolute maximum ratings.
How does the SMB (DO-214AA) package of SMBJ100CAHE3_B/I affect thermal performance?
The SMB package of SMBJ100CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on Vishay's recommended 0.2" × 0.2" copper pads. This necessitates adequate PCB copper area for heat dissipation during repetitive surges; insufficient copper increases junction temperature and may reduce surge endurance or trigger thermal runaway.
Can SMBJ100CAHE3_B/I replace SMBJ100A in an existing design?
No - SMBJ100CAHE3_B/I is bidirectional, whereas SMBJ100A is unidirectional with cathode marking. Substituting them requires verifying circuit polarity, transient directionality, and whether reverse-bias leakage or forward conduction paths are acceptable. Direct replacement is not advised without schematic and layout review, as polarity mismatch may cause malfunction or failure.
SMBJ100CAHE3_B/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):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 3.7A
- 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)
SMBJ100CAHE3_B/I FAQ
1.How can I place an order for SMBJ100CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100CAHE3_B/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 SMBJ100CAHE3_B/I reliable?
The price and inventory of SMBJ100CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ100CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100CAHE3_B/I?
SMBJ100CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100CAHE3_B/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 SMBJ100CAHE3_B/I?
For technical support, including SMBJ100CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ100CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ100CAHE3_B/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 SMBJ100CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ100CAHE3_B/I?
All SMBJ100CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100CAHE3_B/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 SMBJ100CAHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ100CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100CAHE3_B/I Tags
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