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Vishay General Semiconductor - Diodes Division SMBG8.0AHE3/52
- Part No.:
- SMBG8.0AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG8.0AHE3/52.pdf
- Description:
- TVS DIODE 8VWM 13.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,065
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Product details
Overview
SMBG8.0AHE3/52 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 8.0 V stand-off voltage (VWM), 8.89–9.83 V breakdown voltage (VBR) at 1 mA, 13.6 V clamping voltage (VC) at 44.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed on automotive sensor signal lines, industrial I/O ports, and DC power rails.
For engineers reviewing the SMBG8.0AHE3/52 datasheet, SMBG8.0AHE3/52 pinout, SMBG8.0AHE3/52 application, or SMBG8.0AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compliance with UL 497B for protector classification.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, conducting only when reverse voltage exceeds VBR to divert surge energy away from downstream components. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the SMBG package supports automated SMT placement and meets MSL level 1 per J-STD-020.
The device is rated for 100 A non-repetitive forward surge current (IFSM) and exhibits 100 °C/W typical thermal resistance (RθJA) on standard 5.0 mm × 5.0 mm copper pads. It is RoHS compliant, halogen-free not applicable (HE3 suffix denotes AEC-Q101 + RoHS), and intended for use in environments requiring high reliability under repetitive transients induced by inductive switching or ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 8.89 V / 9.83 V at 1 mA - guaranteed breakdown range defining turn-on threshold |
| VC @ IPPM | 13.6 V at 44.1 A - clamped voltage during 600 W surge, limiting stress on protected ICs |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform, duty cycle ≤ 0.01 % |
| ID @ VWM | 50 μA - low leakage current ensuring minimal standby power loss and signal integrity |
| TJ max. | +150 °C - enables operation in under-hood automotive and industrial ambient conditions |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts reverse surge current to ground path during overvoltage |
| Anode (unmarked end) | Reference/ground return | Typically tied to system ground or low-impedance return plane to complete clamping path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables suppression of high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| AEC-Q101 qualification | Validates suitability for automotive ECUs, ADAS sensors, and body control modules |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift across temperature and life cycles |
| MSL Level 1 rating | Allows unlimited floor life and reflow up to 260 °C peak, compatible with standard lead-free assembly |
| UL 497B recognition (QVGQ2) | Meets safety requirements for telecom and industrial signal-line protectors |
Applications
| Automotive Sensor Protection | Industrial I/O Port Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground, responding within <1 ns to limit voltage to ≤13.6 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs while maintaining signal fidelity due to low capacitance and leakage. | Use Scenario: Safeguarding PLC digital input modules against field-wiring transients, relay coil flyback, and ESD events in factory automation systems. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to clamp surges before reaching optocoupler or MCU GPIO pins. Use Value: Enables reliable operation at 8.0 V logic thresholds with 50 μA leakage, minimizing false triggering and power budget impact. |
| DC Power Rail Protection | Telecom Signal Line Protection |
Use Scenario: Secondary overvoltage protection on 12 V battery-fed sub-circuits (e.g., infotainment power supplies, camera modules) where primary protection is upstream. IC Role / Device Role / Timing Role: Fast-clamping shunt element absorbing 600 W pulses without thermal runaway, leveraging 150 °C TJ rating. Use Value: Extends system uptime by preventing shutdown or reset caused by transient-induced brownout on regulated rails. | Use Scenario: Protecting RS-485/RS-232 transceiver inputs in base station backhaul and network equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: UL 497B-recognized protector mounted at connector entry point, clamping to 13.6 V before transceiver's absolute max rating is exceeded. Use Value: Reduces field failure rate in outdoor telecom deployments while meeting safety certification 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 |
|---|---|---|---|
| SMBJ8.0A-E3/52 | Same VWM (8.0 V), but lower PPPM (600 W vs. SMBJ series' 600 W), identical SMB package; differs in thermal resistance (RθJA = 100 °C/W same), but SMBJ uses DO-214AA case with slightly different pad layout | Not AEC-Q101 qualified; intended for industrial/commercial use only | Select SMBG8.0AHE3/52 when automotive qualification or higher surge margin in compact layout is required |
| 1.5SMC8.0A | Same electrical specs (VWM = 8.0 V, VC = 13.6 V), but larger SMC (DO-214AB) package (higher RθJA ≈ 120 °C/W), 1.5 kW rating - over-specified power capability | Higher mounting area demand and thermal mass; less suitable for dense automotive PCBs | Choose SMBG8.0AHE3/52 for space-constrained AEC-Q101 designs where 600 W suffices and footprint minimization is critical |
Compared with SMBJ8.0A-E3/52 and 1.5SMC8.0A, SMBG8.0AHE3/52 uniquely combines AEC-Q101 qualification, SMBG package compatibility with tight pitch layouts, and verified 600 W surge capability - making it optimal for next-generation automotive sensor nodes and industrial edge controllers where reliability and miniaturization intersect.
Availability
SMBG8.0AHE3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O port hardening, and DC power rail safeguarding requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMBG8.0AHE3/52 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-reliability transient suppression in automotive and industrial environments, prioritizing AEC-Q101 compliance, low-profile SMT integration, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of SMBG8.0AHE3/52 and how does it protect downstream circuits?
The SMBG8.0AHE3/52 has a maximum clamping voltage (VC) of 13.6 V at 44.1 A peak pulse current. This means that during a 10/1000 μs transient event, the device limits the voltage seen by protected components to ≤13.6 V - well below typical 15–20 V absolute maximum ratings of automotive MCUs and transceivers. The SMBG8.0AHE3/52 achieves this via fast avalanche conduction, diverting surge current away from sensitive nodes while maintaining low dynamic impedance.
Is SMBG8.0AHE3/52 suitable for automotive applications?
Yes, SMBG8.0AHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity, and validation across temperature cycling, high-temperature reverse bias (HTRB), and ESD tests. The HE3 suffix confirms both RoHS compliance and AEC-Q101 qualification - making SMBG8.0AHE3/52 appropriate for engine control units, ADAS cameras, and body electronics where reliability under harsh conditions is mandatory.
What is the meaning of the 'HE3/52' suffix in SMBG8.0AHE3/52?
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" diameter plastic tape and reel, with a base quantity of 750 units per reel - optimized for high-volume SMT assembly. This distinguishes SMBG8.0AHE3/52 from non-automotive variants like SMBG8.0A-E3/52 (RoHS only) or SMBG8.0A-M3/52 (halogen-free + RoHS).
How does SMBG8.0AHE3/52 compare to bidirectional TVS diodes like SMBG8.0CA?
SMBG8.0AHE3/52 is unidirectional and intended for DC-biased lines where polarity is fixed (e.g., 12 V supply rails, sensor VCC lines); it blocks forward current until breakdown and conducts reverse surge to ground. In contrast, SMBG8.0CA is bidirectional and used on AC or floating lines (e.g., data buses), clamping in both directions. SMBG8.0AHE3/52 offers lower leakage (50 μA vs. 800 μA for SMBG5.0CA at VWM) and is optimized for asymmetric voltage environments - a key distinction when selecting SMBG8.0AHE3/52 for power rail protection.
What PCB layout considerations apply to SMBG8.0AHE3/52?
For optimal performance, SMBG8.0AHE3/52 must be mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve specified thermal resistance (RθJA = 100 °C/W) and surge current handling. Short, low-inductance traces to ground are essential - especially for the cathode connection - to minimize voltage overshoot during fast transients. Avoid routing sensitive signals near the SMBG8.0AHE3/52 body, and ensure no solder mask encroachment on pad edges to maintain solder joint integrity during reflow.
SMBG8.0AHE3/52 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 44.1A
- 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)
SMBG8.0AHE3/52 FAQ
1.How can I place an order for SMBG8.0AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG8.0AHE3/52 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 SMBG8.0AHE3/52 reliable?
The price and inventory of SMBG8.0AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG8.0AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG8.0AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG8.0AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG8.0AHE3/52?
SMBG8.0AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG8.0AHE3/52 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 SMBG8.0AHE3/52?
For technical support, including SMBG8.0AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG8.0AHE3/52 requirements.
6.How does Aetrix verify that SMBG8.0AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG8.0AHE3/52 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 SMBG8.0AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG8.0AHE3/52?
All SMBG8.0AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG8.0AHE3/52, 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 SMBG8.0AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG8.0AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG8.0AHE3/52 Tags
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