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Vishay General Semiconductor - Diodes Division SMBG17-E3/52
- Part No.:
- SMBG17-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG17-E3/52.pdf
- Description:
- TVS DIODE 17VWM 30.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,853
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Product details
Overview
SMBG17-E3/52 from Vishay General Semiconductor is a unidirectional 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 17 V stand-off voltage (VWM), 18.9–20.9 V breakdown voltage (VBR at 1 mA), 600 W peak pulse power (10/1000 µs), <1.0 µA reverse leakage at VWM, and clamps to ≤27.6 V at 21.7 A peak surge current - deployed in automotive power rail protection and industrial sensor interface circuits.
For engineers reviewing the SMBG17-E3/52 datasheet, SMBG17-E3/52 pinout, SMBG17-E3/52 application, or SMBG17-E3/52 equivalent, this page delivers verified electrical parameters, JEDEC-compliant thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, RoHS-compliant matte tin plating, and precise mounting pad layout guidance per DO-215AA mechanical drawing.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge energy away from downstream ICs. Its glass-passivated junction ensures stable breakdown and low leakage, while the DO-215AA package supports automated SMT placement and meets UL 94 V-0 flammability rating.
Designed for single-polarity DC systems, SMBG17-E3/52 is rated for 100 A non-repetitive forward surge (8.3 ms half-sine), junction temperature range of –55 °C to +150 °C, and MSL Level 1 reflow compatibility (peak 260 °C). It exhibits typical junction capacitance <100 pF at zero bias and 50 mVp-p / 1 MHz test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 17 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin for protected line. |
| VBR (min/max) | 18.9 V / 20.9 V at 1 mA - guaranteed avalanche onset range; ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | ≤27.6 V at 21.7 A - clamped voltage during 600 W transient; determines maximum stress imposed on downstream components. |
| PPPM | 600 W (10/1000 µs waveform) - standardized surge power handling; validates robustness against IEC 61000-4-5 Level 4 surges. |
| IR @ VWM | ≤1.0 µA - ultra-low reverse leakage; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive or enclosed industrial environments. |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient on 5.0 mm × 5.0 mm copper pads; informs PCB thermal design for sustained surge duty. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead frame with cathode band marking on one end. Dimensions: 6.48 mm × 3.94 mm × 2.10 mm (L × W × H); 0.255" × 0.155" × 0.083". Matte tin-plated leads meet J-STD-002 solderability and JESD22-B102 durability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return plane; must handle full IPPM without trace fusing. |
| Cathode (banded end) | Reverse-biased clamping node | Connected to protected line (e.g., 12 V rail or CAN_H); polarity marking prevents incorrect orientation during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and chassis applications per stress test requirements including HTOL, TCT, and ESD. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift over time, and immunity to humidity-induced parameter shift. |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 combination wave testing up to 4 kV open-circuit / 2 kA short-circuit levels. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns; eliminates bake-out requirement pre-SMT. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulant required for safety-critical industrial and transportation equipment certifications. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt clamping device placed between VBAT and GND, triggered within <1 ns upon overvoltage event. Use Value: Limits rail voltage to ≤27.6 V during 600 W surges, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Bidirectional-capable clamping element (though SMBG17-E3/52 is unidirectional, used on supply side only) placed at sensor output buffer stage. Use Value: Suppresses ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback from nearby solenoid drivers without affecting 4–20 mA signal fidelity. |
| Telecom DC Power Input Stage | Consumer USB Port VBUS Protection |
|
Use Scenario: Front-end surge suppression on 48 V PoE-powered network switches and base stations. IC Role / Device Role / Timing Role: Primary overvoltage clamp on primary-side DC input, upstream of DC-DC converters. Use Value: Withstands repetitive 10/1000 µs surges up to 600 W at 0.01% duty cycle, maintaining system uptime in lightning-prone installations. |
Use Scenario: Secondary-level overvoltage guard on USB Type-A VBUS line in portable docking stations. IC Role / Device Role / Timing Role: Unidirectional shunt limiter tied between VBUS and GND, activated only during positive overvoltage events. Use Value: Clamps fault conditions (e.g., charger misconnection) to ≤27.6 V before USB controller ICs exceed absolute maximum ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A-E3/52 | Same VWM (17 V), identical DO-214AA (SMB) package but slightly higher VC (28.5 V @ 21.2 A); lower RθJA (85 °C/W). | Higher clamping voltage reduces margin for 3.3 V logic rails; preferred where board space allows larger thermal pads. | Select SMBJ17A-E3/52 if lower thermal resistance is critical and clamping voltage margin permits. |
| SMAJ17A-E3/52 | Same VWM and VBR, but lower PPPM (400 W), smaller DO-214AC (SMA) package, and higher RθJA (140 °C/W). | Insufficient for IEC 61000-4-5 Level 4; suitable only for low-energy ESD-only zones or space-constrained consumer ports. | Choose SMAJ17A-E3/52 only for cost-sensitive, low-surge applications where 400 W rating suffices. |
Compared with SMBG17-E3/52, SMBJ17A-E3/52 offers better thermal performance but looser clamping control, while SMAJ17A-E3/52 sacrifices surge robustness for footprint reduction - making SMBG17-E3/52 the balanced choice for AEC-Q101-compliant 600 W protection in DO-215AA's optimized thermal-mechanical profile.
Availability
SMBG17-E3/52 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer USB protection requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for SMBG17-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, MOSFETs, and protection devices with emphasis on reliability, automotive qualification, and industrial-grade performance.
The SMBG series was engineered for high-power transient suppression in space-constrained SMT designs, targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance and 600 W surge capability in the DO-215AA footprint.
FAQ
What is the breakdown voltage range for SMBG17-E3/52?
The SMBG17-E3/52 has a guaranteed breakdown voltage (VBR) range of 18.9 V to 20.9 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping behavior across temperature and production lots, directly supporting reliable overvoltage protection in 12 V and 24 V automotive and industrial systems where SMBG17-E3/52 is deployed.
Is SMBG17-E3/52 suitable for automotive applications?
Yes, SMBG17-E3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and infotainment power rails. Its DO-215AA package passes MSL Level 1 reflow, its glass-passivated junction withstands thermal cycling, and its 150 °C maximum junction temperature supports under-hood deployment - all confirmed in Vishay's qualification report for SMBG17-E3/52.
What does the "E3/52" suffix mean in SMBG17-E3/52?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD201 Class 1A whisker resistance; "/52" specifies packaging in 7" diameter plastic tape and reel, with 750 units per reel. This ordering code distinguishes SMBG17-E3/52 from AEC-Q101-qualified variants (e.g., SMBG17HE3/52) and alternate reels (e.g., /5B), ensuring correct procurement of the commercial-grade SMBG17-E3/52 variant.
How does SMBG17-E3/52 compare to bi-directional TVS diodes like SMBG17CA?
SMBG17-E3/52 is unidirectional and protects only against positive overvoltage relative to ground, whereas SMBG17CA is bi-directional and handles symmetrical transients on AC or floating lines. SMBG17-E3/52 offers lower leakage (<1.0 µA vs. ≤5.0 µA for SMBG17CA) and tighter VBR tolerance, making it preferable for DC supply rail protection where polarity is fixed - a key distinction confirmed in Vishay's SMBG family datasheet for SMBG17-E3/52.
What is the maximum clamping voltage of SMBG17-E3/52 during a surge event?
The SMBG17-E3/52 clamps to a maximum of 27.6 V at its rated peak pulse current of 21.7 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transients - a critical parameter validated in Vishay's electrical characteristics table for SMBG17-E3/52 and essential for verifying downstream IC survivability.
SMBG17-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.5V
- Current - Peak Pulse (10/1000µs):
- 19.7A
- 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)
SMBG17-E3/52 FAQ
1.How can I place an order for SMBG17-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG17-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 SMBG17-E3/52 reliable?
The price and inventory of SMBG17-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 SMBG17-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG17-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG17-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG17-E3/52?
SMBG17-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG17-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 SMBG17-E3/52?
For technical support, including SMBG17-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG17-E3/52 requirements.
6.How does Aetrix verify that SMBG17-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG17-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 SMBG17-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG17-E3/52?
All SMBG17-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG17-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 SMBG17-E3/52 part is unused and in its original packaging.
Return procedure for SMBG17-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG17-E3/52 Tags
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