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Vishay General Semiconductor - Diodes Division SMBG22AHE3/52
- Part No.:
- SMBG22AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG22AHE3/52.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,862
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Product details
Overview
SMBG22AHE3/52 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 22 V stand-off voltage (VWM), 24.4–26.9 V breakdown voltage (VBR) at 1 mA, 35.5 V maximum clamping voltage (VC) at 16.9 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive powertrain control units to safeguard CAN transceivers against load dump and inductive switching transients.
For engineers reviewing the SMBG22AHE3/52 datasheet, SMBG22AHE3/52 pinout, SMBG22AHE3/52 application, or SMBG22AHE3/52 equivalent, key selection criteria include its AEC-Q101 qualification, 150 °C junction temperature rating, low 1.0 μA reverse leakage at VWM, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated silicon junction technology for stable surge response. Its clamping behavior is defined by a low incremental surge resistance and fast sub-nanosecond response time, enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5).
The SMBG22AHE3/52 is rated for 100 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine, supports MSL Level 1 per J-STD-020 (260 °C peak reflow), and exhibits 100 °C/W typical junction-to-ambient thermal resistance when mounted on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 22 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 24.4 V / 26.9 V at 1 mA - Ensures reliable turn-on above system nominal voltage with margin |
| VC @ IPPM | 35.5 V at 16.9 A - Limits protected circuit voltage during 600 W transient events |
| PPPM | 600 W - Withstands high-energy 10/1000 μs surges common in automotive and industrial environments |
| IFSM | 100 A - Handles single-event inductive kickback without failure (8.3 ms half-sine) |
| TJ max | +150 °C - Enables operation in under-hood automotive locations and high-ambient industrial settings |
| Leakage @ VWM | 1.0 μA - Minimizes standby power loss and avoids false triggering in low-current sensor lines |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, gull-wing lead form with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides return path during clamping; must be routed with low-inductance ground plane |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line | Accepts transient energy from signal/power line and shunts it to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensors |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 μs) | Protects against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-4 EFT events |
| MSL Level 1 (260 °C) | Supports standard lead-free reflow profiles without preconditioning or baking |
| Low profile SMBG package | Enables compact PCB layout in space-constrained modules such as battery management systems |
Applications
| Automotive Powertrain Control | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V supply rails and LIN/CAN signal lines in engine control units exposed to load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and chassis ground to limit voltage excursions below IC absolute maximum ratings. Use Value: Clamps to ≤35.5 V during 600 W surges, preventing damage to microcontrollers and transceivers while maintaining AEC-Q101 compliance. | Use Scenario: Safeguarding analog output lines (4–20 mA) and digital I/O of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-rated TVS on sensor output traces to absorb ESD and inductive coupling from nearby motor drives. Use Value: 1.0 μA leakage at 22 V ensures minimal impact on precision current-loop accuracy; fast response prevents latch-up in downstream ADC drivers. |
| Telecom Line Card Protection | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-side DC bus protection in PoE-powered network switches subjected to surge coupling from Ethernet ports. IC Role / Device Role / Timing Role: Unidirectional TVS across +48 V DC output to suppress cross-talk surges from IEEE 802.3at/af transients. Use Value: 22 V VWM provides margin above regulated 48 V rail; 35.5 V clamping prevents overvoltage on DC-DC controller inputs. | Use Scenario: Input-stage transient suppression on 24 V secondary side of wall-mounted AC/DC adapters for smart home hubs. IC Role / Device Role / Timing Role: Primary clamping element on rectified DC bus to absorb capacitor discharge spikes and ESD from user-accessible ports. Use Value: AEC-Q101 qualification ensures reliability in continuous operation; RoHS-compliant HE3 suffix meets global environmental compliance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A-E3/52 | Same VWM (22 V), but lower PPPM = 600 W (same), higher VC = 37.5 V at same IPPM; SMB (DO-214AA) package, slightly larger footprint | Less stringent space constraints; no AEC-Q101 qualification | Select when automotive qualification is not required and board layout allows DO-214AA pad pattern |
| SMCJ22AHE3/A | Higher PPPM = 1500 W, same VWM/VBR, larger SMC (DO-214AB) package; AEC-Q101 qualified | Systems requiring higher surge immunity (e.g., 12 V battery jump-start events) | Choose when 600 W is insufficient and PCB real estate permits larger 7.11 mm × 6.22 mm footprint |
Compared with SMBJ22A-E3/52 and SMCJ22AHE3/A, the SMBG22AHE3/52 delivers identical 600 W surge capability in the smallest AEC-Q101-qualified footprint (SMBG), making it optimal for space-constrained automotive modules where both reliability and miniaturization are critical.
Availability
SMBG22AHE3/52 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial sensor interface, telecom line card protection, and consumer power adapter input stage applications requiring stable component supply, AEC-Q101 compliance, and consistent lead-free manufacturing traceability.
Supply support for SMBG22AHE3/52 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 was developed specifically for AEC-Q101-compliant transient suppression in compact automotive and industrial modules, balancing high surge capability, low leakage, and surface-mount process compatibility.
FAQ
What is the clamping voltage of SMBG22AHE3/52 and how is it measured?
The SMBG22AHE3/52 has a maximum clamping voltage (VC) of 35.5 V, measured at a peak pulse current (IPPM) of 16.9 A using a 10/1000 μs double-exponential waveform. This value is guaranteed per the Vishay datasheet (Document Number: 88456, Rev. 09-Jan-2024) and reflects the voltage seen across the SMBG22AHE3/52 during standardized surge testing - critical for ensuring protected ICs remain within their absolute maximum ratings.
Is SMBG22AHE3/52 suitable for automotive applications?
Yes, SMBG22AHE3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor interfaces. Its construction - glass-passivated junction, MSL Level 1 reflow compatibility, and operation up to +150 °C - meets rigorous automotive reliability requirements. The HE3 suffix confirms AEC-Q101 qualification, making SMBG22AHE3/52 appropriate for under-hood and cabin applications demanding long-term field reliability.
What does the "HE3/52" suffix mean in SMBG22AHE3/52?
The "HE3" suffix indicates RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads; "52" denotes the preferred packaging code for 7" diameter plastic tape and reel, containing 750 units per reel. This packaging format supports automated SMT placement and is documented in the Vishay ordering information table (page 3, Document 88456). The full part number SMBG22AHE3/52 uniquely identifies this qualified, reel-packed variant of the SMBG22A device.
How does SMBG22AHE3/52 differ from bidirectional TVS diodes like SMBG22CA?
SMBG22AHE3/52 is unidirectional and features polarity marking (cathode band), allowing it to conduct only in reverse breakdown - ideal for DC rail protection. In contrast, SMBG22CA is bidirectional with no polarity marking and symmetric clamping in both directions, suited for AC signal lines or differential buses. The SMBG22AHE3/52's 1.0 μA leakage at 22 V is specified only in reverse; SMBG22CA exhibits matched leakage in both directions, making SMBG22AHE3/52 preferable for low-leakage DC applications.
What is the thermal resistance of SMBG22AHE3/52 and how does it affect layout?
The SMBG22AHE3/52 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. This value assumes minimum recommended pad layout per Vishay's mechanical drawing. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - undersized pads or thin traces will increase RθJA and risk exceeding the +150 °C TJ max rating of the SMBG22AHE3/52.
SMBG22AHE3/52 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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 16.9A
- 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)
SMBG22AHE3/52 FAQ
1.How can I place an order for SMBG22AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG22AHE3/52 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 SMBG22AHE3/52 reliable?
The price and inventory of SMBG22AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG22AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG22AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG22AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG22AHE3/52?
SMBG22AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG22AHE3/52 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 SMBG22AHE3/52?
For technical support, including SMBG22AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG22AHE3/52 requirements.
6.How does Aetrix verify that SMBG22AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG22AHE3/52 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 SMBG22AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG22AHE3/52?
All SMBG22AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG22AHE3/52, 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 SMBG22AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG22AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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