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Vishay General Semiconductor - Diodes Division SMBG90AHE3/5B
- Part No.:
- SMBG90AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90AHE3/5B.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,875
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Product details
Overview
SMBG90AHE3/5B 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 a 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current, 600 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG90AHE3/5B datasheet, SMBG90AHE3/5B pinout, SMBG90AHE3/5B application, or SMBG90AHE3/5B equivalent, key selection criteria include clamping performance under 10/1000 µs surge, unidirectional polarity with cathode band marking, thermal resistance (RθJA = 100 °C/W), and compliance with UL 497B and JESD201 Class 2 whisker requirements.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transients exceeding VWM, it avalanches at VBR ≥ 100 V and limits downstream voltage to ≤146 V at rated IPPM. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at 90 V).
Designed for surface-mount automated assembly on PCBs with 5.0 mm × 5.0 mm copper pads per terminal, it supports repetitive surge duty cycles up to 0.01 % and withstands peak forward surge current (IFSM) of 100 A (8.3 ms half-sine), with operating junction temperature range from –55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse working voltage before clamping initiates |
| VBR (min) | 100 V at 1.0 mA - Ensures reliable avalanche turn-on above normal operating rail |
| VC (max) | 146 V at 4.1 A - Limits protected circuit voltage during 10/1000 µs surge |
| PPPM | 600 W - Sustains high-energy transients without failure under standardized waveform |
| IFSM | 100 A - Withstands single 8.3 ms half-sine surge on power rails without degradation |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| RθJA | 100 °C/W - Requires adequate PCB copper area for thermal management at full power |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Polarity marked by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or return path; conducts during reverse transient |
| Cathode | High-side connection; marked with band | Connected to protected line; defines directionality and avalanche reference |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics including engine control, body modules, and ADAS sensors |
| 600 W peak pulse power (10/1000 µs) | Handles ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 Level 3 surges |
| UL 497B recognized (QVGQ2) | Meets safety standards for telecom and industrial signal line protectors |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Shunt TVS placed between power rail and chassis ground to clamp transients within safe margin of downstream regulators and microcontrollers. Use Value: Limits voltage to ≤146 V during 600 W surges, preventing latch-up or permanent damage to automotive-grade MCUs and CAN transceivers. | Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS connected from signal line to local ground, suppressing ESD and fast transients induced by nearby motor drives. Use Value: Clamps sub-100 ns ESD events to <150 V while maintaining <1.0 µA leakage at 90 V, preserving sensor accuracy and long-term stability. |
| Telecom Line Interface Protection | Consumer Power Adapter Input Protection |
Use Scenario: Front-end protection of Ethernet PHYs, RS-485 transceivers, and DSL line drivers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt suppressor on differential pairs or supply inputs, coordinated with GDTs or secondary TVS for staged protection. Use Value: Delivers 600 W surge handling with 146 V clamping, meeting IEC 61000-4-5 (10/700 µs) system-level requirements when used with proper PCB layout. | Use Scenario: Input-stage overvoltage suppression in AC/DC adapters and USB PD chargers subjected to mains-borne transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed after bridge rectifier to clamp positive-going surges on bulk capacitor input. Use Value: Survives repeated 100 A, 8.3 ms half-sine surges (IFSM) without parameter shift, ensuring field reliability in cost-sensitive consumer power supplies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90A-E3/5B | Same SMB (DO-214AA) package but lower PPPM (600 W same), higher VC (150 V), and no AEC-Q101 qualification | Not approved for automotive under-hood use; suitable for industrial/commercial only | Select SMBG90AHE3/5B when AEC-Q101 compliance and tighter VC (146 V vs. 150 V) are required |
| 1.5SMC90AHE3/A | Higher-power SMC (DO-214AB) package (1500 W PPPM), same VWM/VBR, larger footprint | Used where higher surge margin or legacy board compatibility dictates SMC form factor | Choose SMBG90AHE3/5B for space-constrained designs needing AEC-Q101 and SMBG footprint |
Compared with SMBJ90A-E3/5B and 1.5SMC90AHE3/A, SMBG90AHE3/5B uniquely combines AEC-Q101 qualification, SMBG (DO-215AA) low-profile packaging, and 146 V clamping-making it optimal for automotive and compact industrial PCBs requiring certified reliability and minimal board area.
Availability
SMBG90AHE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom line cards, and consumer power adapter designs requiring stable component supply and AEC-Q101-compliant transient protection.
Supply support for SMBG90AHE3/5B 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, automotive qualification, and application-specific performance.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in space-constrained automotive and industrial systems, balancing low profile, AEC-Q101 compliance, and precise clamping behavior.
FAQ
What is the clamping voltage of SMBG90AHE3/5B and how is it measured?
The SMBG90AHE3/5B has a maximum clamping voltage (VC) of 146 V, measured at a peak pulse current (IPPM) of 4.1 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by protected circuitry during surge events, directly supporting design margin calculations for downstream ICs.
Is SMBG90AHE3/5B suitable for automotive applications?
Yes, SMBG90AHE3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, MSL Level 1 reflow compatibility, and operating junction temperature range of –55 °C to +150 °C-meets stringent automotive environmental and reliability requirements, making it appropriate for engine control units, body electronics, and ADAS sensor modules.
What does the "HE3" suffix indicate in SMBG90AHE3/5B?
The "HE3" suffix in SMBG90AHE3/5B denotes RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads. It distinguishes this variant from non-automotive versions (e.g., "E3") and confirms compliance with JESD201 Class 2 whisker testing and UL 497B recognition-critical for long-life, high-reliability deployments where SMBG90AHE3/5B is specified.
How does SMBG90AHE3/5B differ from SMBJ90A-E3/5B?
SMBG90AHE3/5B uses the smaller SMBG (DO-215AA) package versus SMBJ's SMB (DO-214AA), offers AEC-Q101 qualification, and achieves lower clamping voltage (146 V vs. 150 V). While both deliver 600 W peak pulse power, SMBG90AHE3/5B is engineered for automotive and high-density layouts where qualification and footprint matter-unlike SMBJ90A-E3/5B, which targets general-purpose industrial use.
What is the recommended PCB pad layout for SMBG90AHE3/5B?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad area per terminal for SMBG90AHE3/5B to achieve rated thermal performance (RθJA = 100 °C/W) and 600 W pulse power dissipation. Use of internal ground/power planes and thermal vias beneath pads further enhances heat spreading-essential for sustaining repetitive surges in automotive and industrial applications where SMBG90AHE3/5B is deployed.
SMBG90AHE3/5B 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMBG90AHE3/5B FAQ
1.How can I place an order for SMBG90AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90AHE3/5B 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 SMBG90AHE3/5B reliable?
The price and inventory of SMBG90AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG90AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG90AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90AHE3/5B?
SMBG90AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90AHE3/5B 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 SMBG90AHE3/5B?
For technical support, including SMBG90AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90AHE3/5B requirements.
6.How does Aetrix verify that SMBG90AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG90AHE3/5B 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 SMBG90AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG90AHE3/5B?
All SMBG90AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90AHE3/5B, 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 SMBG90AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG90AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90AHE3/5B Tags
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