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Vishay General Semiconductor - Diodes Division SMBG100AHE3/52
- Part No.:
- SMBG100AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG100AHE3/52.pdf
- Description:
- TVS DIODE 100VWM 162VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,012
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Product details
Overview
SMBG100AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 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, and 600 W peak pulse power rating with 10/1000 μs waveform - used to safeguard automotive sensor signal lines against inductive switching transients.
For engineers reviewing the SMBG100AHE3/52 datasheet, SMBG100AHE3/52 pinout, SMBG100AHE3/52 application, or SMBG100AHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C max junction temperature, low 1.0 μA reverse leakage at VWM, matte tin-plated solderable terminals, and compliance with UL 497B for surge protector classification.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated silicon junction technology for stable avalanche behavior under repetitive surge conditions. Its thermal resistance (RθJA = 100 °C/W) and RθJL = 20 °C/W support reliable power dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
The SMBG100AHE3/52 delivers fast response time (<1 ns), low incremental surge resistance, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is rated for 100 A non-repetitive forward surge current (IFSM) and exhibits excellent clamping ratio (VC/VBR ≈ 1.45) - critical for minimizing voltage overshoot during ESD or lightning-induced transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 111 V / 123 V at 1 mA - defines guaranteed avalanche onset range for design margining |
| VC @ IPPM | 162 V at 3.7 A - peak clamped voltage limiting stress on downstream ICs during 10/1000 μs surge |
| PPPM | 600 W - peak pulse power handling capability under standardized surge waveform |
| IFSM | 100 A - single half-sine surge current rating (8.3 ms), supporting high-energy load dump protection |
| TJ max | +150 °C - enables operation in under-hood automotive environments without derating |
| Leakage @ VWM | 1.0 μA - ensures minimal standby power loss and signal integrity in high-impedance circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to protected line side; carries surge current into device during clamping |
| Cathode | Current exit point during forward conduction; marked with band | Connected to ground or lower-potential reference; establishes unidirectional clamping direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under humidity and thermal stress |
| UL 497B recognized (QVGQ2) | Meets safety standard for telecom and industrial surge protectors - simplifies system-level certification |
| MSL Level 1 (260 °C peak) | Enables standard SMT reflow without moisture sensitivity concerns or baking requirements |
| 600 W 10/1000 μs rating | Provides proven immunity against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in engine control units. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to limit transient voltage to safe levels. Use Value: SMBG100AHE3/52's 162 V clamping voltage prevents damage to 12 V-rated transceivers while maintaining signal fidelity during sub-100 ns surges. | Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff protection device installed at connector interface to shunt energy before reaching optocoupler or microcontroller input stage. Use Value: With 100 V VWM, SMBG100AHE3/52 allows full 24 V DC nominal operation while clamping transients above 111 V - preserving noise margin and avoiding false triggering. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Safeguarding Ethernet PHY interfaces and RS-485 transceivers in outdoor base stations exposed to lightning-induced surges on data lines. IC Role / Device Role / Timing Role: Primary surge suppression element in series with common-mode chokes and secondary TVS arrays. Use Value: SMBG100AHE3/52's low capacitance (<50 pF at 0 V) minimizes signal distortion on 10/100 Mbps links while delivering 600 W surge handling. | Use Scenario: Secondary overvoltage clamp on 100 V DC intermediate bus in industrial SMPS front-end, following primary MOV or gas discharge tube. IC Role / Device Role / Timing Role: Fast-acting secondary limiter that activates after slower primary protectors to prevent overshoot during fast-rising transients. Use Value: SMBG100AHE3/52's 111–123 V VBR provides precise coordination with upstream protectors, ensuring clean turn-on without premature conduction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A-E3/52 | Same SMB package, identical VWM/VBR/VC, but not AEC-Q101 qualified and lacks UL 497B recognition | Approved for industrial/commercial use only; unsuitable for automotive OEM designs requiring AEC-Q101 | Select SMBG100AHE3/52 when automotive qualification or UL certification is mandatory |
| SMCJ100AHE3/52 | Larger SMC (DO-214AB) package with higher PPPM (1500 W), same electrical specs, and AEC-Q101 qualification | Used where higher surge energy absorption is required, e.g., battery line protection in EVs | Choose SMBG100AHE3/52 for space-constrained PCBs needing 600 W protection in compact SMBG footprint |
Compared with SMBJ100A-E3/52 and SMCJ100AHE3/52, SMBG100AHE3/52 uniquely balances AEC-Q101 compliance, UL 497B listing, and SMBG package size - making it optimal for automotive signal-line protection where board area and qualification rigor are both critical.
Availability
SMBG100AHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, AEC-Q101 traceability, and UL-certified surge performance.
Supply support for SMBG100AHE3/52 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 MOSFETs with emphasis on reliability, precision, and application-specific validation.
The SMBG-series TRANSZORB® TVS line targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure - engineered for fast clamping, repeatable surge endurance, and seamless integration into automated SMT assembly.
FAQ
What is the clamping voltage of SMBG100AHE3/52 and how is it measured?
The SMBG100AHE3/52 has a maximum clamping voltage (VC) of 162 V, measured at a peak pulse current (IPPM) of 3.7 A using the standardized 10/1000 μs double-exponential surge waveform. This value represents the highest voltage seen across the device during a defined transient event and is critical for ensuring downstream components remain within their absolute maximum ratings. The SMBG100AHE3/52 achieves this clamping performance while maintaining low dynamic impedance under surge conditions.
Is SMBG100AHE3/52 suitable for automotive applications?
Yes, SMBG100AHE3/52 is explicitly AEC-Q101 qualified and carries the HE3 suffix denoting AEC-Q101 qualification, RoHS compliance, and industrial grade. It is validated for automotive environments including under-hood temperature ranges (−55 °C to +150 °C), mechanical shock, vibration, and surge endurance - making it appropriate for engine control units, ADAS sensor interfaces, and body electronics where certified reliability is mandatory. The SMBG100AHE3/52 also holds UL 497B recognition for surge protector classification.
What does the "HE3/52" suffix mean in SMBG100AHE3/52?
The "HE3" suffix indicates RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads meeting J-STD-002 solderability standards. The "/52" denotes packaging in 7-inch plastic tape-and-reel format with 750 units per reel - optimized for high-speed pick-and-place assembly. This full designation confirms the SMBG100AHE3/52 meets automotive-grade material, process, and packaging requirements, distinguishing it from non-qualified variants like SMBJ100A-E3/52.
How does SMBG100AHE3/52 compare to bidirectional TVS diodes?
SMBG100AHE3/52 is unidirectional and intended for DC-biased lines where polarity is fixed - such as 12 V or 24 V supply rails or signal lines referenced to ground. Unlike bidirectional types (e.g., SMBG100CA), it conducts only in reverse avalanche and forward conduction, offering lower leakage and tighter VBR tolerance. For AC-coupled or floating lines like RS-485 differential pairs, a bidirectional variant would be required; the SMBG100AHE3/52 is not interchangeable in those roles due to polarity dependence.
What is the thermal resistance of SMBG100AHE3/52 and why does it matter?
SMBG100AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 5.0 mm × 5.0 mm copper pads per terminal. These values determine how effectively heat generated during surge events dissipates - directly impacting safe operating area and reliability under repetitive surges. Proper PCB layout matching the recommended pad dimensions is essential to achieve the rated 600 W pulse power; undersized pads increase RθJA and risk thermal runaway. The SMBG100AHE3/52's low RθJL supports efficient conduction into the PCB plane.
SMBG100AHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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 (SMBG)
SMBG100AHE3/52 FAQ
1.How can I place an order for SMBG100AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG100AHE3/52 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 SMBG100AHE3/52 reliable?
The price and inventory of SMBG100AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG100AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG100AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG100AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG100AHE3/52?
SMBG100AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG100AHE3/52 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 SMBG100AHE3/52?
For technical support, including SMBG100AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG100AHE3/52 requirements.
6.How does Aetrix verify that SMBG100AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG100AHE3/52 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 SMBG100AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG100AHE3/52?
All SMBG100AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG100AHE3/52, 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 SMBG100AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG100AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG100AHE3/52 Tags
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