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Vishay General Semiconductor - Diodes Division SMBG17A-E3/52
- Part No.:
- SMBG17A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG17A-E3/52.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,616
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Product details
Overview
SMBG17A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, featuring 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR) at 1 mA, 27.6 V maximum clamping voltage (VC) at 21.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform-designed for protecting MOSFETs and signal lines in automotive powertrain control modules.
For engineers reviewing the SMBG17A-E3/52 datasheet, SMBG17A-E3/52 pinout, SMBG17A-E3/52 application, or SMBG17A-E3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads per terminal.
Technical Context
This TVS diode operates as a shunt-clamping protector: under normal bias it presents high impedance (<1.0 μA reverse leakage at 17 V), then rapidly switches to low-impedance conduction when transient voltage exceeds VBR, limiting downstream voltage to ≤27.6 V at 21.7 A. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability.
Designed for industrial and automotive environments, SMBG17A-E3/52 meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), supports 100 A non-repetitive forward surge (8.3 ms half-sine), and delivers consistent clamping performance across -55 °C to +150 °C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - Confirmed breakdown threshold defining turn-on precision |
| VC @ IPPM | 27.6 V at 21.7 A - Clamped voltage during 600 W transient, directly limiting IC stress |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform, 0.01% duty cycle |
| TJ max | +150 °C - Enables use in under-hood automotive electronics without derating |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability and lifetime performance |
| Package | SMBG (DO-215AA) - Low-profile SMT package compatible with standard 7" tape-and-reel (750 pcs/reel) |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount gull-wing lead frame with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line (e.g., 12 V rail); conducts surge current toward ground path |
| Cathode | Current exit point during clamping | Connected to system ground; defines unidirectional polarity and sets VWM reference |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 5a) without failure |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter drift <±5% over lifetime |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| MSL Level 1 rating | Supports single-reflow assembly at 260 °C peak without moisture-induced damage |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, load dump) |
Applications
| Automotive Powertrain Control | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of MCU I/O and gate drivers against load-dump transients in 12 V battery systems. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between power rail and ground to clamp voltage spikes to safe levels. Use Value: Limits transient voltage to ≤27.6 V, preventing latch-up or permanent damage to 3.3 V/5 V logic interfaces. | Use Scenario: Safeguarding PLC analog input channels from inductive kickback during solenoid switching. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on signal conditioning front-end before ADC stage. Use Value: Maintains signal integrity by suppressing >1 kV transients within <1 ns response time while adding <1 pF capacitance. |
| Automotive Body Electronics | Telecom Power Supply Rails |
Use Scenario: Guarding LIN bus transceivers and LED driver ICs against ESD and board-level surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-line, cathode-to-ground on 12 V supply input. Use Value: Provides ±15 kV contact ESD immunity per IEC 61000-4-2 while maintaining <1 μA leakage at 17 V. | Use Scenario: Protecting DC-DC converter inputs in base station power supplies from lightning-induced surges. IC Role / Device Role / Timing Role: Primary-stage clamping device on 48 V telecom rail prior to buck regulator. Use Value: Absorbs 600 W pulses without degradation, enabling compliance with ITU-T K.20 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A-E3/52 | Same VWM/VBR/VC specs but SMB (DO-214AA) package; 10% larger footprint, 120 °C TJ max | Lacks AEC-Q101 qualification; not approved for automotive under-hood use | Select SMBG17A-E3/52 when AEC-Q101 compliance and +150 °C operation are mandatory |
| SMCJ17A-E3/52 | Same electrical specs but SMC (DO-214AB) package; 2× higher PPPM (1500 W), 2× larger thermal mass | Higher mounting pad area required; less suitable for dense PCB layouts | Choose SMBG17A-E3/52 where space-constrained SMT layout and automotive qualification are prioritized over ultra-high energy rating |
Compared with SMBJ17A-E3/52 and SMCJ17A-E3/52, SMBG17A-E3/52 uniquely combines AEC-Q101 qualification, +150 °C junction rating, and compact SMBG footprint-making it optimal for automotive ECU designs requiring both reliability and miniaturization.
Availability
SMBG17A-E3/52 is available at Aetrix Electronics and suitable for automotive powertrain control, industrial motor drive protection, and telecom power supply rail stabilization requiring stable component supply and full traceability.
Supply support for SMBG17A-E3/52 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, and protection devices with emphasis on high-reliability, automotive-qualified components.
The SMBG Transient Voltage Suppressor family is engineered for robust, space-efficient circuit protection in harsh environments-specifically targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and stable clamping performance.
FAQ
What is the maximum clamping voltage of SMBG17A-E3/52 and under what test condition is it specified?
The SMBG17A-E3/52 has a maximum clamping voltage (VC) of 27.6 V, measured at a peak pulse current (IPPM) of 21.7 A using the standardized 10/1000 μs double-exponential transient waveform. This value is guaranteed across the full operating temperature range (-55 °C to +150 °C) and reflects worst-case clamping performance during surge events.
Is SMBG17A-E3/52 suitable for automotive applications, and what qualification does it hold?
Yes, SMBG17A-E3/52 is explicitly AEC-Q101 qualified per the Vishay datasheet (Document Number: 88456, Revision: 09-Jan-2024), confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces where reliability under thermal and mechanical stress is critical.
What is the polarity configuration of SMBG17A-E3/52, and how is the cathode identified?
SMBG17A-E3/52 is a unidirectional TVS diode. The cathode is marked by a visible band on the device body, aligned with the cathode terminal in the SMBG (DO-215AA) gull-wing package. This polarity must be observed during PCB layout to ensure correct clamping direction relative to the protected line and ground reference.
Does SMBG17A-E3/52 meet moisture sensitivity level requirements for lead-free reflow?
Yes, SMBG17A-E3/52 meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows unlimited floor life and compatibility with standard lead-free soldering processes without baking or special handling-critical for high-volume automotive manufacturing.
What is the thermal resistance from junction to ambient (RθJA) for SMBG17A-E3/52, and how does it affect power dissipation?
The typical junction-to-ambient thermal resistance (RθJA) of SMBG17A-E3/52 is 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value determines steady-state temperature rise under DC leakage or repetitive surges; for example, 100 mW dissipation causes ~10 °C rise above ambient, supporting reliable operation in sealed enclosures.
SMBG17A-E3/52 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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG17A-E3/52 FAQ
1.How can I place an order for SMBG17A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG17A-E3/52 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 SMBG17A-E3/52 reliable?
The price and inventory of SMBG17A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG17A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG17A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG17A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG17A-E3/52?
SMBG17A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG17A-E3/52 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 SMBG17A-E3/52?
For technical support, including SMBG17A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG17A-E3/52 requirements.
6.How does Aetrix verify that SMBG17A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG17A-E3/52 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 SMBG17A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG17A-E3/52?
All SMBG17A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG17A-E3/52, 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 SMBG17A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG17A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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