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Vishay General Semiconductor - Diodes Division SMBG9.0AHE3/52
- Part No.:
- SMBG9.0AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0AHE3/52.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,124
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Product details
Overview
SMBG9.0AHE3/52 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 a 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, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG9.0AHE3/52 datasheet, SMBG9.0AHE3/52 pinout, SMBG9.0AHE3/52 application, or SMBG9.0AHE3/52 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 unidirectional TVS diode operates as a fast-acting shunt clamp during voltage transients, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its design targets repetitive surge events with ≤0.01% duty cycle, supporting protection against inductive switching spikes and lightning-induced surges per IEC 61000-4-5.
The device is rated for 100 A non-repetitive forward surge current (IFSM) under 8.3 ms half-sine wave, and exhibits thermal resistance of 100 °C/W (junction-to-ambient) on standard 5.0 mm × 5.0 mm copper pads - enabling reliable operation in high-temperature automotive under-hood environments up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for 12 V nominal systems. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamping voltage limits downstream IC stress during 600 W transient energy dissipation. |
| ID @ VWM | 1.0 μA - Ultra-low leakage preserves signal integrity and battery life in always-on circuits. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform meets ISO 7637-2 Pulse 1 & 2 and IEC 61000-4-5 Level 3 requirements. |
| TJ max | +150 °C - Enables use in AEC-Q101-compliant automotive modules without derating in under-hood locations. |
| Package | SMBG (DO-215AA) - Surface-mount package with 0.235" × 0.255" footprint, optimized for automated placement and high thermal dissipation. |
Pinout & Package
SMBG9.0AHE3/52 uses the SMBG (DO-215AA) surface-mount package with two terminals: cathode (marked by band) and anode. The package conforms to JEDEC DO-215AA outline, features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VWM exceeded - polarity-critical for unidirectional operation. |
| Anode | Reference/ground return path | Typically tied to system ground plane; completes clamping path - must be low-inductance connection for effective ESD/transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors - supports long-term reliability under thermal cycling and vibration. |
| Glass passivated junction | Enhances moisture resistance and long-term stability of breakdown characteristics - critical for field-deployed industrial and automotive systems. |
| 600 W peak pulse power | Handles high-energy transients without degradation - sufficient for ISO 7637-2 Pulse 5a (load dump) in 12 V systems when properly heatsinked. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at 260 °C peak - simplifies SMT manufacturing and eliminates bake requirements. |
| UL 497B recognized | Qualified as a Class B protector under Underwriters Laboratories standard - enables use in certified telecom and industrial safety-critical designs. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS diode placed between power rail and chassis ground to clamp transients above 9.0 V. Use Value: Limits voltage excursion to ≤15.4 V during 39 A surge events, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used with series impedance) guarding signal pins against ESD and cable discharge events. Use Value: Sub-ns response and 1.0 μA leakage preserve signal accuracy while meeting IEC 61000-4-2 Level 4 (15 kV air) immunity requirements. |
| Telecom Line Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Front-end protection of Ethernet PHY power and bias lines in PoE-powered network switches. IC Role / Device Role / Timing Role: Standoff-rated TVS on 3.3 V or 5 V auxiliary rails to absorb induced surges from nearby AC wiring or lightning coupling. Use Value: 600 W rating and 100 °C/W RθJA enable sustained operation in enclosed switch chassis without thermal runaway. | Use Scenario: Overvoltage guard on VBUS line of USB-C ports in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Primary clamping device on 5 V input path, coordinated with polymer PTC and filtering capacitors. Use Value: AEC-Q101 qualification and RoHS/REACH compliance support global medical device regulatory submissions (IEC 60601-1-2). |
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-E3/52 | Same VWM (9.0 V), but lower PPPM = 600 W (same), higher VC = 16.0 V at 37.5 A; SMBJ package has larger pad area (DO-214AA). | Higher thermal mass allows marginally better surge endurance in high-temperature ambient; less suitable for space-constrained layouts. | Select SMBJ9.0A-E3/52 only if PCB layout permits larger footprint and thermal performance is prioritized over board area. |
| 1.5SMC9.0A | Same electrical specs (VWM = 9.0 V, VC = 15.4 V), but SMC (DO-214AB) package - 0.285" × 0.285", higher RθJA ≈ 125 °C/W. | Lower mounting density and reduced thermal efficiency; not AEC-Q101 qualified - limited to commercial/industrial use. | Choose 1.5SMC9.0A only for cost-sensitive non-automotive designs where footprint and qualification are secondary. |
Compared with SMBG9.0AHE3/52, SMBJ9.0A-E3/52 offers identical clamping performance in a thermally superior but larger package, while 1.5SMC9.0A provides equivalent protection in a non-automotive, higher-profile alternative - making SMBG9.0AHE3/52 the optimal balance of AEC-Q101 compliance, compact SMBG footprint, and verified 600 W surge capability.
Availability
SMBG9.0AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom surge protection requiring stable component supply across production lifecycles.
Supply support for SMBG9.0AHE3/52 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, automotive qualification, and high-volume manufacturability.
The SMBG series is engineered specifically for AEC-Q101-compliant transient suppression in harsh-environment applications - targeting automotive power distribution, industrial control I/O, and telecom infrastructure where consistent clamping behavior and long-term parametric stability are mandatory.
FAQ
What is the maximum clamping voltage of SMBG9.0AHE3/52 and under what test condition?
The SMBG9.0AHE3/52 has a maximum clamping voltage (VC) of 15.4 V, measured at a peak pulse current (IPPM) of 39.0 A using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed per Vishay's datasheet revision 09-Jan-2024 (Document Number: 88456) and reflects worst-case clamping performance under full-rated surge conditions - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBG9.0AHE3/52 qualified for automotive applications?
Yes, SMBG9.0AHE3/52 is explicitly AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documented in the Vishay datasheet. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - validating its suitability for under-hood and cabin-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What does the "/52" suffix indicate in SMBG9.0AHE3/52?
Within the Vishay ordering system, the "/52" suffix in SMBG9.0AHE3/52 specifies the packaging configuration: 750 units per 7-inch diameter plastic tape-and-reel. This format is optimized for high-speed pick-and-place assembly and aligns with industry-standard SMT handling protocols - distinct from "/5B", which denotes 3200 units per 13-inch reel.
How does SMBG9.0AHE3/52 differ from bidirectional TVS diodes like SMBG9.0CA?
SMBG9.0AHE3/52 is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMBG9.0CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The unidirectional SMBG9.0AHE3/52 offers lower leakage (<1.0 μA at VWM) and is preferred for DC power rail protection; SMBG9.0CA suits AC-coupled or differential signal lines where polarity reversal may occur.
What is the thermal resistance of SMBG9.0AHE3/52 and how does it affect layout?
SMBG9.0AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under 600 W surge conditions, PCB layout must provide adequate copper area and minimize trace length - undersized pads or narrow traces will elevate junction temperature and risk parametric shift or failure.
SMBG9.0AHE3/52 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):
- 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)
SMBG9.0AHE3/52 FAQ
1.How can I place an order for SMBG9.0AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0AHE3/52 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 SMBG9.0AHE3/52 reliable?
The price and inventory of SMBG9.0AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG9.0AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG9.0AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0AHE3/52?
SMBG9.0AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0AHE3/52 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 SMBG9.0AHE3/52?
For technical support, including SMBG9.0AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0AHE3/52 requirements.
6.How does Aetrix verify that SMBG9.0AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG9.0AHE3/52 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 SMBG9.0AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG9.0AHE3/52?
All SMBG9.0AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0AHE3/52, 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 SMBG9.0AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG9.0AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0AHE3/52 Tags
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