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Vishay General Semiconductor - Diodes Division SMBG15C-E3/5B
- Part No.:
- SMBG15C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG15C-E3/5B.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,336
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Product details
Overview
SMBG15C-E3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤24.4 V at 24.6 A peak surge current - used in automotive sensor interface protection and industrial I/O line surge suppression.
For engineers reviewing the SMBG15C-E3/5B datasheet, SMBG15C-E3/5B pinout, SMBG15C-E3/5B application, or SMBG15C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, MSL Level 1 moisture sensitivity, 150 °C max junction temperature, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical VBR min/max (16.7 V / 18.5 V) and VC (24.4 V) specifications in either direction. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
The device meets AEC-Q101 stress requirements and is rated for -55 °C to +150 °C operation. Thermal resistance is 100 °C/W (junction-to-ambient, on 5.0 mm × 5.0 mm pads) and 20 °C/W (junction-to-lead), supporting reliable power dissipation under repetitive surge conditions up to 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 16.7 V / 18.5 V at 1 mA - guaranteed breakdown threshold range for reliable turn-on margin |
| VC @ IPPM | 24.4 V at 24.6 A - clamped voltage during 600 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - peak pulse power handling per single transient, derated above 25 °C |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; safe for standard reflow without dry pack |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing leaded case with matte tin-plated terminals, UL 94 V-0 molding compound, and no polarity marking (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional polarity - either terminal serves as anode or cathode depending on transient polarity |
| Case (body) | Thermal and mechanical mounting surface | Non-electrical; provides thermal path to PCB copper pads (0.2" × 0.2") and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from inductive load switching or lightning-induced surges |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| MSL Level 1 & RoHS-compliant (E3) | Supports lead-free reflow assembly without baking; compliant with global environmental regulations |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and ground, responding within <1 ns to limit transient excursions. Use Value: Maintains signal integrity by clamping to ≤24.4 V while surviving 600 W surges - preventing latch-up or damage to 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding PLC digital input channels and RS-485 transceiver pins against field-wiring induced surges and ESD events. IC Role / Device Role / Timing Role: Standoff protector mounted directly at connector entry point, shunting transients before they reach isolation barriers or MCU GPIOs. Use Value: Enables robust 24 V DC industrial systems to meet IEC 61000-4-2 (±15 kV air) and IEC 61000-4-4 (±2 kV) immunity requirements. |
| Consumer Audio Line Protection | Telecom DSL/ADSL Line Interface |
Use Scenario: Shielding headphone jack, microphone bias, or speaker amplifier outputs from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance bi-directional clamp across differential audio paths or single-ended bias lines. Use Value: Prevents pop-noise, amplifier shutdown, or permanent damage in portable devices - verified per JEDEC JS-001 human-body model testing. |
Use Scenario: Front-end protection of xDSL line drivers and receivers exposed to lightning-induced longitudinal surges on twisted-pair telephone lines. IC Role / Device Role / Timing Role: Primary surge limiter placed before hybrid transformer and line driver IC, referenced to line-ground. Use Value: Clamps common-mode surges to <25 V while maintaining signal fidelity up to 30 MHz - critical for ADSL2+ and VDSL2 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same VWM (15 V), VBR (16.7–18.5 V), and VC (24.4 V); identical 600 W rating but in DO-214AA (SMB) package (slightly larger footprint, 4.57 mm × 3.94 mm vs. SMBG's 4.57 mm × 3.94 mm with gull-wing leads) | Compatible with legacy SMB footprints; less optimized for fine-pitch automated placement due to J-bend leads | Select SMBJ15CA only if board layout uses standard SMB pad pattern and gull-wing lead tolerance is not required. |
| SMCJ15CA | Same electrical specs but in larger DO-214AB (SMC) package (7.11 mm × 6.22 mm); higher thermal mass supports >1000 W surge capability in some configurations | Better suited for high-energy industrial surge zones; incompatible with SMBG/SMB land patterns | Choose SMCJ15CA when system-level surge testing exceeds 600 W or when board space allows larger package for improved thermal margin. |
Compared with SMBG15C-E3/5B, SMBJ15CA offers identical clamping performance in a legacy SMB footprint, while SMCJ15CA trades compactness for higher surge endurance - making SMBG15C-E3/5B optimal for space-constrained AEC-Q101 automotive modules requiring gull-wing manufacturability.
Availability
SMBG15C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface designs requiring stable component supply, AEC-Q101 qualification, and RoHS-compliant SMT assembly.
Supply support for SMBG15C-E3/5B 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, power efficiency, and automotive-grade validation.
The SMBG series was engineered specifically for high-reliability surface-mount transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial, and telecom infrastructure applications.
FAQ
What is the polarity configuration of SMBG15C-E3/5B?
SMBG15C-E3/5B is a bi-directional TVS diode with symmetrical conduction characteristics - it has no cathode band or polarity marking and functions identically in both directions. This makes SMBG15C-E3/5B ideal for protecting AC-coupled signals, differential buses like CAN, or any floating node where voltage transients may swing positive or negative relative to ground.
Does SMBG15C-E3/5B meet automotive qualification standards?
Yes, SMBG15C-E3/5B is AEC-Q101 qualified - confirmed in Vishay's official documentation (Document Number 88456). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and ESD, validating SMBG15C-E3/5B for use in engine control units, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage of SMBG15C-E3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBG15C-E3/5B is 24.4 V at 24.6 A peak pulse current (IPPM), measured using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures protected ICs see no more than 24.4 V during worst-case transients.
Can SMBG15C-E3/5B be used in place of a unidirectional TVS like SMBG15A?
No - SMBG15C-E3/5B is bi-directional and lacks polarity marking, whereas SMBG15A is unidirectional with a cathode band. Substituting SMBG15C-E3/5B for SMBG15A in DC-biased circuits may cause unintended conduction. Use SMBG15C-E3/5B only where true bi-directional clamping is required, such as AC signal lines or differential buses.
What is the moisture sensitivity level (MSL) rating for SMBG15C-E3/5B?
SMBG15C-E3/5B is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/60% RH and requires no dry-pack or baking prior to reflow soldering. This simplifies manufacturing logistics and eliminates yield loss from moisture-related popcorning during lead-free reflow.
SMBG15C-E3/5B 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 22.3A
- 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)
SMBG15C-E3/5B FAQ
1.How can I place an order for SMBG15C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG15C-E3/5B 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 SMBG15C-E3/5B reliable?
The price and inventory of SMBG15C-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG15C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG15C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG15C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG15C-E3/5B?
SMBG15C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG15C-E3/5B 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 SMBG15C-E3/5B?
For technical support, including SMBG15C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG15C-E3/5B requirements.
6.How does Aetrix verify that SMBG15C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG15C-E3/5B 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 SMBG15C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG15C-E3/5B?
All SMBG15C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG15C-E3/5B, 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 SMBG15C-E3/5B part is unused and in its original packaging.
Return procedure for SMBG15C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG15C-E3/5B Tags
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