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Vishay General Semiconductor - Diodes Division SMBG10HE3/5B
- Part No.:
- SMBG10HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG10HE3/5B.pdf
- Description:
- TVS DIODE 10VWM 18.8VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,181
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Product details
Overview
SMBG10HE3/5B from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features 10 V stand-off voltage (VWM), 11.1–12.3 V breakdown voltage (VBR at 1 mA), 17.0 V maximum clamping voltage (VC) at 35.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBG10HE3/5B datasheet, SMBG10HE3/5B pinout, SMBG10HE3/5B application, or SMBG10HE3/5B equivalent, this device is selected for automotive-grade overvoltage protection where AEC-Q101 qualification, low clamping voltage, and robust surge handling (100 A IFSM) are critical - especially in 12 V battery rail and sensor interface circuits.
Technical Context
The SMBG10HE3/5B operates as a uni-directional avalanche diode, triggering when reverse voltage exceeds its VBR range (11.1–12.3 V), then clamping to ≤17.0 V at 35.3 A. Its glass-passivated junction ensures stable leakage (<5.0 µA at VWM) and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
Thermally, it supports operation from –55 °C to +150 °C with RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and RθJL = 20 °C/W. The HE3 suffix confirms AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, making it suitable for under-hood automotive modules requiring long-term reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin below system nominal voltage (e.g., 12 V automotive rails) |
| VBR (min/max) | 11.1 V / 12.3 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and unit variation |
| VC @ IPPM | 17.0 V at 35.3 A - Clamped voltage during 600 W transient; protects downstream ICs rated ≤20 V absolute max |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; meets ISO 7637-2 Pulse 1 & 2a requirements |
| IFSM | 100 A - Non-repetitive forward surge current (8.3 ms half-sine); supports load-dump immunity in automotive power systems |
| TJ max | +150 °C - Maximum junction temperature; enables placement near heat sources in engine control units |
| AEC-Q101 | Qualified - Validated for automotive use per stress test conditions including HTOL, TC, UHAST, and mechanical shock |
Pinout & Package
DO-215AA (SMBG) surface-mount package: 2-terminal, gull-wing leaded configuration; cathode indicated by band marking on body; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side (e.g., ground or return path); defines polarity-sensitive clamping direction |
| Cathode (banded end) | Reverse voltage sensing / Clamping output node | Connected to protected line (e.g., 12 V supply); conducts avalanche current to anode when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per full stress-test suite - enables use in engine control, ADAS, and body modules without requalification |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) up to 120 V, 100 ms duration |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs - e.g., clamps 12 V rail to only 17 V during surge |
| Glass-passivated junction | Ensures stable leakage (<5 µA at 10 V) and long-term parameter stability under thermal cycling and humidity |
| MSL Level 1 (260 °C peak) | Compatible with standard SMT reflow profiles - no moisture sensitivity handling required prior to assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and jump-start transients. IC Role / Device Role / Timing Role: Uni-directional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 120 V/100 ms load dump to ≤17 V, preventing damage to upstream LDOs and microcontrollers rated for 20 V max. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pair (e.g., LIN bus or analog output) referenced to local ground. Use Value: Sub-1 ns response limits voltage overshoot to <20 V during ±8 kV contact ESD, preserving ADC input integrity. |
| Telecom Power Supply Input | Consumer USB Port Surge Protection |
Use Scenario: Safeguarding AC/DC adapter outputs feeding telecom base station controllers. IC Role / Device Role / Timing Role: Primary-level TVS on 48 V DC input rail, upstream of POL converters. Use Value: Absorbs 600 W surges from induced lightning transients while maintaining VC < 80 V - within 48 V system derating margin. |
Use Scenario: Adding secondary-side surge protection to USB 2.0 VBUS line in portable chargers and hubs. IC Role / Device Role / Timing Role: Uni-directional clamp from VBUS to GND, sized for 5 V nominal operation. Use Value: Limits VBUS to 17 V during ±15 kV air discharge, preventing latch-up in USB switch ICs and PMICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10AHE3/5B | Same VWM (10 V), identical AEC-Q101 qualification, but SMBJ package (DO-214AA) - 2.5 mm wider body, higher RθJA (110 °C/W) | Less space-efficient; requires larger PCB pad layout; slightly reduced thermal performance in confined layouts | Select SMBJ10AHE3/5B only if legacy board uses SMBJ footprint or higher IPPM (43.4 A) is needed |
| 1.5SMC10AH | Same electrical specs (VWM = 10 V, VC = 17 V), but SMC package (DO-214AB) - larger size, higher IFSM (200 A), non-AEC-Q101 | Not qualified for automotive; suited for industrial power supplies where qualification is not mandated | Choose 1.5SMC10AH for cost-sensitive industrial designs where AEC-Q101 is unnecessary and higher surge margin is beneficial |
Compared with SMBG10HE3/5B, SMBJ10AHE3/5B offers identical clamping and qualification but demands more board area, while 1.5SMC10AH trades automotive compliance for higher surge endurance and lower unit cost in non-automotive settings.
Availability
SMBG10HE3/5B is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply inputs requiring stable component supply, AEC-Q101 assurance, and consistent 600 W transient suppression performance.
Supply support for SMBG10HE3/5B 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 high-volume manufacturability.
The SMBG series is engineered for surface-mount transient suppression in space-constrained, high-reliability applications - particularly targeting automotive subsystems where AEC-Q101 compliance and low-profile packaging are mandatory.
FAQ
What is the clamping voltage of SMBG10HE3/5B and how is it measured?
The SMBG10HE3/5B has a maximum clamping voltage (VC) of 17.0 V, measured at its peak pulse current (IPPM) of 35.3 A using a standardized 10/1000 µs double-exponential transient waveform. This value is guaranteed across temperature and unit variation per Vishay's datasheet (Doc #88456, Rev 12-Nov-12), and reflects the actual voltage seen by protected circuitry during worst-case surge events.
Is SMBG10HE3/5B suitable for automotive applications?
Yes, SMBG10HE3/5B is explicitly AEC-Q101 qualified (per datasheet note and ordering code "HE3"), tested for high-temperature operating life, thermal cycling, and mechanical shock. Its 150 °C max junction temperature, 100 A IFSM, and DO-215AA package make it appropriate for under-hood and chassis-mounted automotive modules, including body control units and sensor front-ends.
What does the "HE3" suffix mean in SMBG10HE3/5B?
The "HE3" suffix in SMBG10HE3/5B indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It distinguishes this automotive-grade variant from commercial "E3" versions (e.g., SMBG10A-E3/5B), which lack AEC-Q101 validation and Class 2 plating.
How does SMBG10HE3/5B differ from bi-directional TVS diodes like SMBG10CA?
SMBG10HE3/5B is uni-directional and must be oriented with cathode toward the protected line; it blocks forward current above ~3.5 V (VF at 50 A). In contrast, SMBG10CA is bi-directional, symmetric in both polarities, and used where AC signals or reversible voltage transients occur - such as data lines or dual-supply rails. They are not interchangeable without circuit redesign.
What is the thermal resistance of SMBG10HE3/5B and how does it affect layout?
SMBG10HE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 5.0 mm × 5.0 mm copper pads per terminal. To maintain TJ ≤150 °C under sustained 600 W pulses, designers must ensure adequate copper area and avoid excessive ambient temperature - undersized pads will cause premature thermal shutdown or parametric drift.
SMBG10HE3/5B 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 31.9A
- 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)
SMBG10HE3/5B FAQ
1.How can I place an order for SMBG10HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG10HE3/5B 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 SMBG10HE3/5B reliable?
The price and inventory of SMBG10HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG10HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG10HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG10HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG10HE3/5B?
SMBG10HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG10HE3/5B 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 SMBG10HE3/5B?
For technical support, including SMBG10HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG10HE3/5B requirements.
6.How does Aetrix verify that SMBG10HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG10HE3/5B 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 SMBG10HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG10HE3/5B?
All SMBG10HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG10HE3/5B, 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 SMBG10HE3/5B part is unused and in its original packaging.
Return procedure for SMBG10HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG10HE3/5B Tags
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