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Vishay General Semiconductor - Diodes Division SMBG17HE3/5B
- Part No.:
- SMBG17HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG17HE3/5B.pdf
- Description:
- TVS DIODE 17VWM 30.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,114
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Product details
Overview
SMBG17HE3/5B 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 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), 27.6 V maximum clamping voltage (VC) at 21.7 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG17HE3/5B datasheet, SMBG17HE3/5B pinout, SMBG17HE3/5B application, or SMBG17HE3/5B equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, surge current handling under 10/1000 µs waveform, thermal resistance (RθJA = 100 °C/W), RoHS and whisker-test compliance (JESD 201 Class 2), and AEC-Q101 qualification status.
Technical Context
This TVS diode operates as a voltage-clamping protection device placed in parallel with sensitive circuit nodes. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable breakdown behavior under repetitive 10/1000 µs transients at 0.01% duty cycle.
The SMBG17HE3/5B is rated for -55 °C to +150 °C junction temperature, supports 100 A non-repetitive forward surge (8.3 ms half-sine), and exhibits 1.0 µA max reverse leakage at 17 V - critical for low-power sensor and microcontroller I/O line protection where standby current must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 17 V - maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected circuit's normal operating range |
| VBR (Breakdown Voltage) | 18.9–20.9 V at 1 mA - guaranteed conduction onset; ensures reliable triggering above system nominal voltage with margin |
| VC (Clamping Voltage) | 27.6 V at 21.7 A IPPM - peak voltage seen by downstream circuit during 600 W transient; must stay below IC's absolute max rating |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs) - standardized surge energy handling capacity; defines protection level against common lightning/inductive spikes |
| ID (Reverse Leakage) | 1.0 µA max at 17 V - negligible standby current draw; essential for battery-powered or low-quiescent systems |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures without derating |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per AEC specification |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing, RoHS-compliant matte tin-plated leads, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Protected circuit anode connection point | Connected to higher-potential node (e.g., VBUS, supply rail); clamps positive transients to ground when reverse-biased |
| Anode | Ground reference / return path | Connected to system ground; completes clamping path during overvoltage events; requires low-inductance layout |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from motor commutation or relay coil de-energization without degradation |
| AEC-Q101 qualified | Validated for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field reliability |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| Low RθJA = 100 °C/W | Enables effective self-heating management on standard 0.2" × 0.2" copper pads; supports repetitive surge duty cycles |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling - critical for long-life automotive and industrial deployments |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Uni-directional clamping TVS placed between battery rail and DC-DC input. Use Value: Limits voltage to ≤27.6 V during 600 W surges, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (1 µA) clamping device on signal line, referenced to local ground. Use Value: Maintains signal integrity with minimal offset error while suppressing >8 kV contact ESD per IEC 61000-4-2. |
| Consumer USB Port Surge Protection | Telecom Line Card Transient Suppression |
Use Scenario: Safeguarding USB VBUS and D+/D− lines in portable chargers and docking stations. IC Role / Device Role / Timing Role: Standoff-rated (17 V) TVS on VBUS; fast-response clamping for hot-plug and ESD events. Use Value: Clamps 10/1000 µs surges to 27.6 V before USB controller IC exceeds its 36 V abs-max rating. |
Use Scenario: Front-end protection of Ethernet PHY or DSL line drivers exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge limiter on differential pair or power feed, mounted with short trace lengths. Use Value: Absorbs up to 600 W transient energy while maintaining <1 ns response to preserve signal timing integrity. |
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-E3/5B | Same VWM (17 V), but lower PPPM (400 W), higher VC (33.2 V at 12.1 A), and no AEC-Q101 qualification | Acceptable for commercial-grade consumer or industrial equipment where automotive reliability is not required | Select SMBJ17A-E3/5B only if cost sensitivity outweighs need for 600 W headroom and automotive qualification |
| SMCJ17AHE3/5B | Same VWM and AEC-Q101 qualification, but larger DO-214AB (SMC) package, higher PPPM (1500 W), and lower VC (28.8 V at 52.1 A) | Better suited for high-energy industrial motor drives or telecom base station power inputs | Choose SMCJ17AHE3/5B when board space allows and surge energy exceeds 600 W requirements |
Compared with SMBJ17A-E3/5B, SMBG17HE3/5B delivers 50% higher surge power and automotive qualification; versus SMCJ17AHE3/5B, it trades 2.5× peak power for 40% smaller footprint and identical clamping performance per watt - ideal for space-constrained automotive modules.
Availability
SMBG17HE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer USB power protection requiring stable component supply, AEC-Q101 compliance, and consistent 17 V clamping performance.
Supply support for SMBG17HE3/5B 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, efficiency, and application-specific optimization.
The SMBG series was engineered for high-reliability surface-mount transient suppression in automotive and industrial environments, balancing compact size, AEC-Q101 validation, and robust 600 W surge handling in the DO-215AA footprint.
FAQ
What is the clamping voltage of SMBG17HE3/5B and why does it matter?
The SMBG17HE3/5B has a maximum clamping voltage (VC) of 27.6 V at 21.7 A peak pulse current. This value represents the highest voltage imposed on the protected circuit during a standardized 10/1000 µs transient. It matters because this clamped voltage must remain safely below the absolute maximum rating of downstream components - for example, ensuring a 3.3 V microcontroller's I/O or a 36 V DC-DC converter's input is never overstressed. The SMBG17HE3/5B achieves this with tight VBR tolerance and low dynamic impedance.
Is SMBG17HE3/5B suitable for automotive applications?
Yes, SMBG17HE3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, JESD 201 Class 2 whisker resistance, MSL Level 1 reflow compatibility, and operation across -55 °C to +150 °C. These attributes make SMBG17HE3/5B appropriate for engine control units, body control modules, infotainment power rails, and ADAS sensor interfaces where field reliability is non-negotiable.
How does the SMBG17HE3/5B differ from the SMBJ17A-E3/5B?
The SMBG17HE3/5B offers 600 W peak pulse power (vs. 400 W for SMBJ17A-E3/5B), lower clamping voltage (27.6 V vs. 33.2 V), and AEC-Q101 qualification - whereas SMBJ17A-E3/5B is commercial-grade only. Both share the same 17 V stand-off voltage and DO-215AA package, but SMBG17HE3/5B's enhanced surge capability and automotive validation make it the preferred choice for safety-critical or high-reliability deployments where SMBG17HE3/5B's specifications directly address harsher environmental and regulatory demands.
What is the reverse leakage current of SMBG17HE3/5B at its rated stand-off voltage?
The SMBG17HE3/5B specifies a maximum reverse leakage current (ID) of 1.0 µA at its 17 V stand-off voltage (VWM) and 25 °C ambient. This ultra-low leakage ensures minimal impact on battery life in always-on automotive modules or low-power IoT sensors. At elevated temperatures (e.g., +85 °C), leakage remains well under 10 µA - verified per AEC-Q101 stress testing - preserving system quiescent current budgets without compromising protection integrity.
Can SMBG17HE3/5B be used in bi-directional configurations?
No, SMBG17HE3/5B is a uni-directional TVS diode, indicated by the "A" suffix (not "CA"). It conducts only when reverse-biased - i.e., cathode positive relative to anode - and clamps positive transients on power rails referenced to ground. For bi-directional protection (e.g., AC lines or data buses), Vishay offers variants like SMBG17CA with symmetrical breakdown in both polarities. Using SMBG17HE3/5B in bi-directional roles would leave negative-going transients unclamped and risk device failure.
SMBG17HE3/5B 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG17HE3/5B FAQ
1.How can I place an order for SMBG17HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG17HE3/5B 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 SMBG17HE3/5B reliable?
The price and inventory of SMBG17HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG17HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG17HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG17HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG17HE3/5B?
SMBG17HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG17HE3/5B 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 SMBG17HE3/5B?
For technical support, including SMBG17HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG17HE3/5B requirements.
6.How does Aetrix verify that SMBG17HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG17HE3/5B 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 SMBG17HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG17HE3/5B?
All SMBG17HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG17HE3/5B, 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 SMBG17HE3/5B part is unused and in its original packaging.
Return procedure for SMBG17HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG17HE3/5B Tags
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