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Vishay General Semiconductor - Diodes Division SMBG11AHE3/5B
- Part No.:
- SMBG11AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG11AHE3/5B.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,948
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Product details
Overview
SMBG11AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, with 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 18.2 V maximum clamping voltage (VC) at 33 A peak pulse current, and 600 W peak pulse power rating per 10/1000 μs waveform - designed to protect automotive-grade signal lines and power rails against ESD and inductive switching transients.
For engineers reviewing the SMBG11AHE3/5B datasheet, SMBG11AHE3/5B pinout, SMBG11AHE3/5B application, or SMBG11AHE3/5B equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly in harsh-environment electronics.
Technical Context
This unidirectional TVS operates by avalanche breakdown above its specified VBR, clamping transient voltages to ≤18.2 V at 33 A (10/1000 μs), with <1 ns response time and thermal resistance of 100 °C/W (junction-to-ambient). Its glass-passivated junction ensures stable leakage (<5 μA at 11 V) and long-term reliability under repetitive surge stress.
The SMBG11AHE3/5B is rated for -55 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and supports 100 A non-repetitive forward surge current (8.3 ms half-sine), making it suitable for high-energy transient suppression in automotive power distribution networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (min/max) | 12.2 V / 13.5 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 18.2 V at 33 A - Clamped voltage during 600 W transient; limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power handling per standard 10/1000 μs waveform; validated for automotive load-dump immunity. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms); supports protection of 12 V battery-fed circuits. |
| Junction Temp Range | -55 °C to +150 °C - Enables deployment in engine bay, ADAS modules, and under-hood ECUs. |
| Leakage Current | ≤5 μA at 11 V - Minimal standby power loss; avoids false triggering in low-power sensor interfaces. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile (max height 0.030"), 2-terminal gull-wing leadframe with cathode band marking; UL 94 V-0 molding compound; RoHS compliant and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to protected line (e.g., CAN_H, LIN, or 12 V rail); polarity-sensitive for unidirectional operation. |
| Cathode | Current exit terminal during clamping | Connected to ground or lower-potential reference; marked by visible band on device body. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JEDEC standards. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage over lifetime, even under thermal stress and humidity exposure. |
| 600 W peak pulse power | Meets ISO 7637-2 Pulse 1, 2a, 3a/b, and ISO 16750-2 load-dump requirements for 12 V systems. |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; peak reflow up to 260 °C supported. |
| Matte tin-plated leads | Guarantees solderability per J-STD-002 and JESD 22-B102; eliminates whisker risk per JESD 201 Class 2. |
Applications
| Automotive Power Rail Protection | CAN Bus Line Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (up to 35 V, 100 ms) on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input to clamp overvoltage before regulator stage. Use Value: Limits peak voltage to ≤18.2 V, preventing damage to 24 V-rated input stages and enabling robust front-end design. | Use Scenario: Protecting high-speed CAN FD transceivers (e.g., TJA1044) from ESD (±25 kV contact) and coupled noise on vehicle wiring harnesses. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMBG11AHE3/5B used on single-ended supply side (VCC or ground return) of CAN node. Use Value: Sub-20 V clamping preserves transceiver common-mode range while maintaining signal integrity up to 5 Mbps. |
| Industrial Sensor Interface Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding analog front-ends (e.g., ADS1256) and digital sensors (I²C/SPI) in factory automation modules from relay-coil flyback spikes. IC Role / Device Role / Timing Role: TVS placed at connector entry point on 3.3 V or 5 V sensor supply line, upstream of LDO. Use Value: 18.2 V clamping prevents latch-up in downstream logic; low 5 μA leakage avoids offset errors in precision ADC references. | Use Scenario: Safeguarding primary-side controllers (e.g., UC3842) and optocouplers in offline AC/DC adapters against lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals after bridge rectifier to absorb differential-mode transients. Use Value: 600 W rating handles 1.2/50 μs surges per IEC 61000-4-5 Level 3; RoHS/AEC-Q101 compliance supports global safety certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A-E3/5B | Same VWM/VC, but SMB (DO-214AA) package; 10% higher RθJA (110 °C/W); no AEC-Q101 qualification. | Not approved for automotive under-hood use; limited to industrial/commercial environments. | Select when cost sensitivity outweighs automotive qualification and thermal margin is sufficient. |
| 1.5SMC11A | Same electrical specs, but larger SMC (DO-214AB) package; 1000 W PPPM; higher thermal mass but 3× footprint area. | Preferred where PCB space allows and higher surge endurance is required beyond 600 W. | Choose for legacy designs using SMC footprints or where extended surge life cycle is critical. |
Compared with SMBJ11A-E3/5B and 1.5SMC11A, the SMBG11AHE3/5B uniquely combines AEC-Q101 qualification, SMBG's compact DO-215AA footprint, and optimized thermal resistance (100 °C/W) - making it the preferred choice for space-constrained, thermally demanding automotive modules requiring zero compromise on qualification status.
Availability
SMBG11AHE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG11AHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered specifically for high-reliability transient suppression in automotive and industrial environments, prioritizing AEC-Q101 compliance, low-profile packaging, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of SMBG11AHE3/5B at its rated peak pulse current?
The SMBG11AHE3/5B has a maximum clamping voltage (VC) of 18.2 V at 33 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured and guaranteed per Vishay's datasheet revision 09-Jan-2024 (Document Number: 88456), ensuring predictable overvoltage limiting for protected circuitry. The SMBG11AHE3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG11AHE3/5B suitable for automotive applications?
Yes, SMBG11AHE3/5B is explicitly AEC-Q101 qualified (per datasheet note and ordering code "HE3"), tested for temperature cycling, humidity bias, and mechanical shock per automotive reliability standards. Its -55 °C to +150 °C junction temperature range, MSL Level 1 reflow compatibility, and RoHS-compliant matte tin plating make it appropriate for under-hood ECUs, ADAS sensors, and body control modules. The SMBG11AHE3/5B meets key automotive transient immunity requirements including ISO 7637-2 and ISO 16750-2.
What does the "HE3" suffix indicate in SMBG11AHE3/5B?
The "HE3" suffix in SMBG11AHE3/5B denotes RoHS-compliant construction with AEC-Q101 qualification (per Vishay's mechanical data table). It distinguishes this variant from industrial-grade "E3" (RoHS only) and halogen-free "HM3" versions. The "5B" indicates 13-inch tape-and-reel packaging with 3200 units per reel - a standard logistics format for high-volume SMT production. The SMBG11AHE3/5B thus delivers automotive-grade reliability in an optimized manufacturing-ready format.
How does SMBG11AHE3/5B differ from SMBJ11A in terms of package and thermal performance?
SMBG11AHE3/5B uses the SMBG (DO-215AA) package, which is dimensionally identical to SMB but features tighter lead pitch and optimized thermal pad layout; its typical junction-to-ambient thermal resistance is 100 °C/W versus 110 °C/W for SMBJ11A-E3/5B. Both share identical VWM, VBR, and VC specs, but only SMBG11AHE3/5B carries AEC-Q101 qualification. The SMBG11AHE3/5B's lower RθJA supports higher sustained surge duty cycles in thermally constrained layouts.
Can SMBG11AHE3/5B be used in bidirectional configurations?
No, SMBG11AHE3/5B is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and cathode band marking. For bidirectional protection, Vishay specifies variants with "CA" suffix (e.g., SMBG11CA). Using SMBG11AHE3/5B in reverse-biased mode risks permanent damage due to lack of symmetrical avalanche structure. Always verify polarity during placement - the SMBG11AHE3/5B must be oriented with cathode toward the protected line's higher potential side.
SMBG11AHE3/5B 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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 33A
- 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)
SMBG11AHE3/5B FAQ
1.How can I place an order for SMBG11AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG11AHE3/5B 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 SMBG11AHE3/5B reliable?
The price and inventory of SMBG11AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG11AHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG11AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG11AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG11AHE3/5B?
SMBG11AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG11AHE3/5B 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 SMBG11AHE3/5B?
For technical support, including SMBG11AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG11AHE3/5B requirements.
6.How does Aetrix verify that SMBG11AHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG11AHE3/5B 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 SMBG11AHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG11AHE3/5B?
All SMBG11AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG11AHE3/5B, 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 SMBG11AHE3/5B part is unused and in its original packaging.
Return procedure for SMBG11AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG11AHE3/5B Tags
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