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Vishay General Semiconductor - Diodes Division SMBG9.0AHE3/5B
- Part No.:
- SMBG9.0AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0AHE3/5B.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG9.0AHE3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 μs waveform - used to safeguard automotive sensor interfaces and industrial I/O circuits against ESD and load-dump transients.
For engineers reviewing the SMBG9.0AHE3/5B datasheet, SMBG9.0AHE3/5B pinout, SMBG9.0AHE3/5B application, or SMBG9.0AHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data (RθJA = 100 °C/W), junction-to-lead resistance (RθJL = 20 °C/W), and precise mechanical dimensions for PCB layout and thermal design validation.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast response (<1 ns) to transient surges while maintaining low incremental surge resistance. Its glass-passivated junction ensures stable leakage performance (≤1.0 μA at VWM) and repeatable clamping behavior under repetitive 0.01% duty-cycle pulses.
The SMBG9.0AHE3/5B is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and is qualified to AEC-Q101 for automotive under-hood and body electronics applications - distinguishing it from non-automotive-grade variants like E3/52 or M3-suffixed parts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse working voltage before clamping begins; sets upper limit for protected circuit's normal operating voltage. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - guaranteed breakdown threshold range; defines onset of avalanche conduction during overvoltage events. |
| VC @ IPPM | 15.4 V at 39.0 A - maximum clamped voltage seen by downstream circuitry during 600 W transient; critical for IC-level voltage margining. |
| IPPM | 39.0 A - peak pulse current capability with 10/1000 μs waveform; determines survivability against ISO 7637-2 Pulse 1/2a/5a transients. |
| PPPM | 600 W - peak pulse power handling; enables protection of 12 V automotive systems without derating up to TA = 25 °C. |
| TJ max | +150 °C - maximum junction temperature; supports operation in high-ambient environments such as engine control units. |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs board-level thermal management requirements. |
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. Polarity indicated by cathode band; anode and cathode terminals are co-planar and symmetrically arranged for automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference node | Typically tied to system ground or lowest potential rail; completes clamping path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, ADAS sensors, and body electronics - ensures reliability under temperature cycling, humidity, and mechanical stress. |
| Glass-passivated junction | Provides stable VBR tolerance and low leakage (<1.0 μA) across temperature and lifetime, critical for low-power always-on circuits. |
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients like ISO 7637-2 Pulse 5a (load dump), eliminating need for cascaded TVS stages. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing and reduces process risk. |
| Low RθJL = 20 °C/W | Facilitates efficient heat transfer from junction to PCB copper pads, supporting sustained surge handling in compact layouts. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine control modules from ISO 7637-2 load dump and ESD. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and ground, absorbing energy before it reaches the IC input stage. Use Value: Limits transient voltage to ≤15.4 V, preserving integrity of 5 V or 3.3 V interface ICs while meeting AEC-Q101 automotive reliability standards. | Use Scenario: Shielding digital input channels on programmable logic controllers from field-induced surges caused by relay switching or motor drive noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input lines, triggered only during overvoltage events to avoid loading normal operation. Use Value: Withstands 39.0 A peak pulses without degradation, enabling long-term operation in harsh factory environments with minimal maintenance. |
| DC Power Rail Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding 9 V–12 V power rails feeding microcontrollers and communication ICs in telematics units and infotainment head units. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply line, coordinated with upstream fuses or poly-switches for fault isolation. Use Value: Clamps to 15.4 V within nanoseconds, preventing latch-up or permanent damage to downstream regulators and PMICs during battery connection transients. | Use Scenario: Adding secondary surge immunity to USB 2.0 VBUS lines in portable diagnostic tools and smart home hubs exposed to user-handled connectors. IC Role / Device Role / Timing Role: Secondary TVS after primary ESD array, handling higher-energy surges that bypass front-end protection. Use Value: Delivers 600 W pulse handling at 9.0 V standoff - compatible with USB 2.0 VBUS nominal (5 V) and tolerant of 9 V auxiliary charging rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/5B | Same SMB (DO-214AA) package but lower PPPM = 600 W (same rating), slightly higher VC = 15.5 V at 38.9 A; not AEC-Q101 qualified. | Targeted at industrial/commercial designs where automotive qualification is unnecessary; lacks extended temperature validation. | Select SMBJ9.0A-E3/5B only if AEC-Q101 compliance is not required and DO-214AA footprint is preferred. |
| SMCJ9.0AHE3/5B | Same AEC-Q101 qualification and VWM/VBR specs, but larger SMC (DO-214AB) package with higher PPPM = 1500 W and lower VC = 14.4 V at 104 A. | Suitable for higher-energy threat environments (e.g., heavy-duty vehicle alternator regulation) where space allows larger footprint. | Choose SMCJ9.0AHE3/5B when surge energy exceeds 600 W capability or when lower clamping voltage is mandatory for sensitive 3.3 V logic. |
Compared with SMBJ9.0A-E3/5B and SMCJ9.0AHE3/5B, the SMBG9.0AHE3/5B uniquely balances AEC-Q101 qualification, SMBG package size, and precise 9.0 V standoff - making it optimal for space-constrained automotive modules requiring validated reliability without over-engineering.
Availability
SMBG9.0AHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and DC power rail safeguarding requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG9.0AHE3/5B 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 automotive-grade qualification.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments - combining AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of SMBG9.0AHE3/5B at its rated peak pulse current?
The SMBG9.0AHE3/5B has a maximum clamping voltage (VC) of 15.4 V at its rated peak pulse current (IPPM) of 39.0 A, measured using the standard 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC voltage margining in designs using SMBG9.0AHE3/5B.
Is SMBG9.0AHE3/5B qualified to AEC-Q101?
Yes, SMBG9.0AHE3/5B is explicitly AEC-Q101 qualified, as confirmed by Vishay's documentation (Document Number: 88456, Revision: 09-Jan-2024). The "HE3" suffix denotes RoHS-compliant, AEC-Q101-qualified construction, making SMBG9.0AHE3/5B suitable for automotive applications including engine control, body electronics, and ADAS sensor interfaces.
What does the "5B" suffix indicate in SMBG9.0AHE3/5B?
The "5B" suffix in SMBG9.0AHE3/5B specifies the packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3200 units per reel. This differs from "52", which denotes 7-inch reels with 750 units - both are compatible with standard SMT pick-and-place equipment, but 5B supports higher-volume production runs.
Can SMBG9.0AHE3/5B be used in bidirectional configurations?
No, SMBG9.0AHE3/5B is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. For bidirectional operation, Vishay offers the SMBG9.0CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and no polarity marking. Using SMBG9.0AHE3/5B in reverse-biased configurations risks permanent failure.
What is the thermal resistance junction-to-ambient for SMBG9.0AHE3/5B?
The SMBG9.0AHE3/5B has a typical thermal resistance junction-to-ambient (RθJA) of 100 °C/W when mounted on the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes still air conditions and is essential for calculating junction temperature rise during repetitive surge events in SMBG9.0AHE3/5B applications.
SMBG9.0AHE3/5B 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- 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)
SMBG9.0AHE3/5B FAQ
1.How can I place an order for SMBG9.0AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0AHE3/5B 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 SMBG9.0AHE3/5B reliable?
The price and inventory of SMBG9.0AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG9.0AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG9.0AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0AHE3/5B?
SMBG9.0AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0AHE3/5B 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 SMBG9.0AHE3/5B?
For technical support, including SMBG9.0AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0AHE3/5B requirements.
6.How does Aetrix verify that SMBG9.0AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG9.0AHE3/5B 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 SMBG9.0AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG9.0AHE3/5B?
All SMBG9.0AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0AHE3/5B, 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 SMBG9.0AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG9.0AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0AHE3/5B Tags
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