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Vishay General Semiconductor - Diodes Division SMBJ100AHE3_A/I
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- Part No.:
- SMBJ100AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ100AHE3_A/I.pdf
- Description:
- TVS DIODE 100VWM 162VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,630
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Product details
Overview
SMBJ100AHE3_A/I 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 DC power rails and signal lines. It features a 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 162 V maximum clamping voltage (VC) at 3.7 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs, industrial motor control interfaces, and telecom DC-DC converter outputs.
For engineers reviewing the SMBJ100AHE3_A/I datasheet, SMBJ100AHE3_A/I pinout, SMBJ100AHE3_A/I application, or SMBJ100AHE3_A/I equivalent, key selection criteria include clamping performance under 3.7 A surge, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (111–123 V), it avalanches to limit transient energy across protected circuit nodes. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ps), critical for suppressing ESD and inductive switching spikes.
The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports operating junction temperatures from –55 °C to +150 °C, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for high-reliability automotive PCB assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 100 V - maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 111–123 V at 1 mA - precise avalanche initiation range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 162 V at IPPM = 3.7 A - peak voltage seen by protected IC/MOSFET during 10/1000 µs surge; determines stress on downstream components |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for standardized 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 3 surges |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - negligible standby power loss and minimal impact on high-impedance sensor bias networks |
| TJ max. | +150 °C - supports operation in under-hood automotive environments and enclosed industrial enclosures |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential rail; completes shunt path during reverse avalanche |
| Cathode | Protected line connection | Connected to line being protected (e.g., 12 V rail); band-marked end carries transient energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against severe load dump and inductive kick events in 12 V/24 V systems |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero-failure field reliability |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping fidelity for sensitive microcontrollers |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-baking requirement and supports standard lead-free SMT assembly processes |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift across temperature and lifetime |
Applications
| Automotive Power Input Protection | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: 12 V battery feed to engine control unit (ECU) exposed to ISO 7637-2 load dump pulses up to 120 V. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between input rail and chassis ground to clamp transients before LDO regulator input. Use Value: SMBJ100AHE3_A/I clamps to ≤162 V at 3.7 A, preventing damage to 36 V-rated input stages while maintaining <1 µA leakage at nominal 12 V. |
Use Scenario: Gate drive signal line (e.g., PWM to MOSFET gate) in variable-frequency drives subject to cross-talk and Miller-induced spikes. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at gate driver output to suppress sub-100 ns ringing without distorting edge integrity. Use Value: With RθJA = 100 °C/W and TJ max. = +150 °C, SMBJ100AHE3_A/I sustains repeated 600 W surges in thermally constrained gate driver PCB layouts. |
| Telecom DC-DC Converter Output | Consumer Appliance Power Supply Rail |
|
Use Scenario: 48 V output of isolated telecom DC-DC module feeding baseband processor; susceptible to backfeed surges from hot-swap connectors. IC Role / Device Role / Timing Role: Standoff-rated TVS placed at converter output capacitor node to absorb reverse-energy transients during plug-in events. Use Value: VWM = 100 V provides 2× safety margin above 48 V nominal, while 162 V VC ensures downstream 65 V-rated load switches remain within SOA. |
Use Scenario: 24 V auxiliary rail in smart HVAC controller exposed to relay coil flyback and ESD from user interface buttons. IC Role / Device Role / Timing Role: Cost-optimized unidirectional TVS integrated into BOM for all 24 V distribution points on mainboard. Use Value: HE3 suffix guarantees AEC-Q101 compliance and RoHS/halogen-free status, satisfying Tier-1 appliance OEM sustainability and reliability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100AHM3_A/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification | Required where halogen-free material declaration is mandated (e.g., EU WEEE-compliant consumer products) | Select when full halogen-free compliance documentation is contractually required |
| SMBJ100A-E3/52 | Commercial-grade (non-AEC-Q101), same SMB package and VWM/VC specs, RoHS-compliant | Suitable for non-automotive industrial or computing applications with lower reliability validation burden | Choose for cost-sensitive designs where AEC-Q101 is not required and volume pricing favors tape-and-reel packaging |
Compared with SMBJ100AHE3_A/I, the HM3 variant adds halogen-free certification without altering clamping behavior or thermal performance, while the E3/52 version removes automotive qualification but retains identical surge handling - enabling tiered sourcing based on end-equipment regulatory scope and cost targets.
Availability
SMBJ100AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial motor control systems, and telecom infrastructure requiring stable component supply with guaranteed AEC-Q101 compliance and traceable lot-level documentation.
Supply support for SMBJ100AHE3_A/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, TVS devices, and optoelectronics with emphasis on high-reliability, high-efficiency solutions.
The SMBJ series delivers standardized 600 W transient suppression in compact SMB packages, engineered specifically for automotive, industrial, and telecom applications demanding AEC-Q101 validation and repeatable clamping performance under real-world surge conditions.
FAQ
What is the clamping voltage of SMBJ100AHE3_A/I at its rated peak pulse current?
The SMBJ100AHE3_A/I has a maximum clamping voltage (VC) of 162 V at its specified peak pulse current (IPPM) of 3.7 A using the 10/1000 µs waveform. This value is measured under standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ100AHE3_A/I maintains this clamping performance across its qualified operating temperature range.
Is SMBJ100AHE3_A/I suitable for automotive applications?
Yes, SMBJ100AHE3_A/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and Vishay's official documentation. It undergoes rigorous stress testing including temperature cycling, highly accelerated life testing (HALT), and ESD verification to meet automotive reliability standards. The SMBJ100AHE3_A/I is routinely deployed in engine control modules, body control units, and ADAS power supplies where transient immunity and long-term stability are mandatory.
What does the "HE3" suffix indicate in SMBJ100AHE3_A/I?
The "HE3" suffix in SMBJ100AHE3_A/I denotes RoHS-compliant construction with AEC-Q101 qualification. "H" identifies the AEC-Q101 grade, "E3" specifies RoHS-compliant matte tin plating and commercial-grade molding compound. The trailing "A/I" indicates packaging: "A" is the revision code, and "I" specifies 13-inch tape-and-reel delivery (3200 units per reel). This coding ensures full traceability and compliance alignment for automotive-tier procurement.
How does SMBJ100AHE3_A/I compare to bidirectional TVS diodes like SMBJ100CA?
SMBJ100AHE3_A/I is unidirectional and intended for DC line protection with defined polarity (cathode marked), whereas SMBJ100CA is bidirectional and used in AC or floating signal paths. The SMBJ100AHE3_A/I offers lower leakage (<1.0 µA at 100 V) and higher surge current capability in one direction, while SMBJ100CA provides symmetrical clamping but with doubled ID limits for VWM ≤10 V - a distinction irrelevant for the 100 V rating. SMBJ100AHE3_A/I is not interchangeable with SMBJ100CA without circuit redesign.
What is the thermal resistance of SMBJ100AHE3_A/I, and how does it affect layout design?
The SMBJ100AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking; designers must allocate adequate copper area and consider airflow or board layer stacking to avoid exceeding +150 °C junction temperature during repetitive surge events. Layouts using smaller pads will degrade thermal performance and reduce safe surge repetition rate.
SMBJ100AHE3_A/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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ100AHE3_A/I FAQ
1.How can I place an order for SMBJ100AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ100AHE3_A/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 SMBJ100AHE3_A/I reliable?
The price and inventory of SMBJ100AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ100AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ100AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ100AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ100AHE3_A/I?
SMBJ100AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ100AHE3_A/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 SMBJ100AHE3_A/I?
For technical support, including SMBJ100AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ100AHE3_A/I requirements.
6.How does Aetrix verify that SMBJ100AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ100AHE3_A/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 SMBJ100AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ100AHE3_A/I?
All SMBJ100AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ100AHE3_A/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 SMBJ100AHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ100AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ100AHE3_A/I Tags
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