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Vishay General Semiconductor - Diodes Division SMBG15C-E3/52
- Part No.:
- SMBG15C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG15C-E3/52.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,579
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Product details
Overview
SMBG15C-E3/52 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 - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMBG15C-E3/52 datasheet, SMBG15C-E3/52 pinout, SMBG15C-E3/52 application, or SMBG15C-E3/52 equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin terminations, MSL Level 1 moisture sensitivity, 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 (<1 ns) and low incremental surge resistance, critical for protecting MOSFET gates and microcontroller I/O pins against ESD and inductive switching spikes.
The device is rated for TJ = -55 °C to +150 °C, derates linearly above 25 °C per Fig. 2, and exhibits 100 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" pads. It meets UL 497B recognition (QVGQ2) and JESD201 Class 1A whisker testing via E3 suffix.
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 - ensures reliable turn-on margin above VWM for robust transient capture |
| VC @ IPPM | 24.4 V at 24.6 A - clamping voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 600 W - peak pulse power handling capability under standardized transient waveform |
| ID @ VWM | 1.0 μA - ultra-low leakage preserves signal integrity in high-impedance sensor circuits |
| TJ max | +150 °C - supports operation in under-hood automotive and industrial environments |
| Package | DO-215AA (SMBG) - surface-mount, low-profile package compatible with IPC-7351B footprint |
Pinout & Package
DO-215AA (SMBG) package: molded epoxy case meeting UL 94 V-0; matte tin-plated leads solderable per J-STD-002/JESD22-B102; no polarity marking for bi-directional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional transient conduction path | No functional distinction - terminals interchangeable; conducts identically in either polarity during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| 600 W peak pulse power (10/1000 μs) | Withstands repetitive surges up to 0.01% duty cycle without degradation in automotive load-dump or ISO 7637-2 scenarios |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without baking or special handling |
| Glass-passivated junction | Ensures stable VBR and low leakage over lifetime, even under humidity and thermal stress |
| RoHS-compliant E3 suffix | Meets JEDEC JS709A halogen-free and EU Directive 2011/65/EU requirements for commercial and automotive use |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in engine control units. IC Role / Device Role / Timing Role: Bi-directional clamping element placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤24.4 V, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive MCUs and transceivers. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, mounted directly at connector entry point. Use Value: Absorbs 600 W pulses without failure, maintaining system uptime and eliminating need for secondary protection stages. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Protection |
Use Scenario: Input-stage transient suppression on AC-DC adapter secondary-side outputs feeding USB-C PD controllers or PMICs. IC Role / Device Role / Timing Role: Standoff-clamp TVS between VBUS and GND, activated only during >15 V excursions. Use Value: 1.0 μA leakage at 15 V avoids quiescent current penalty; fast response prevents overshoot into sensitive USB-PD negotiation circuitry. |
Use Scenario: Secondary-level protection on Ethernet PHY or DSL line driver outputs subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional shunt device across transformer-coupled data lines, coordinated with primary gas discharge tube (GDT). Use Value: Symmetric clamping ensures equal protection for positive/negative transients, preserving signal integrity in full-duplex communication links. |
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-E3/52 | Same VWM (15 V), but higher PPPM (600 W vs. SMBJ's 600 W), identical DO-214AA (SMB) package - slightly larger thermal pad requirement | Higher RθJA (110 °C/W vs. SMBG's 100 °C/W) limits sustained surge repetition rate in high-temperature enclosures | Preferred where legacy SMB footprint is fixed and AEC-Q101 is not required |
| SMAJ15CA-E3/52 | Lower PPPM (400 W), same VWM and VBR range, smaller DO-214AC (SMA) package - 30% lower surge current rating (16.3 A vs. 24.6 A) | Not AEC-Q101 qualified; unsuitable for automotive under-hood use due to lower TJ max (150 °C same, but qualification missing) | Select when board space is constrained and surge energy is limited to <400 W |
Compared with SMBG15C-E3/52, SMBJ15CA-E3/52 offers identical electrical specs but less stringent automotive qualification and higher thermal resistance, while SMAJ15CA-E3/52 trades surge capacity and qualification for compact size - making SMBG15C-E3/52 optimal for space-constrained, high-reliability automotive and industrial designs requiring verified AEC-Q101 performance.
Availability
SMBG15C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply, AEC-Q101 compliance, and repeatable surge immunity performance.
Supply support for SMBG15C-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, precision, and application-specific validation.
The SMBG series was engineered for high-energy transient suppression in space-constrained, high-reliability applications - particularly automotive subsystems and industrial controls demanding AEC-Q101 qualification and consistent clamping behavior across temperature and life cycle.
FAQ
What does the "C" in SMBG15C-E3/52 indicate?
The "C" suffix denotes bi-directional configuration - meaning SMBG15C-E3/52 provides symmetrical clamping in both polarities, unlike uni-directional variants (e.g., SMBG15A). This makes SMBG15C-E3/52 ideal for AC-coupled lines, differential buses like CAN, or any application where voltage transients may swing positive or negative relative to ground.
Is SMBG15C-E3/52 AEC-Q101 qualified?
Yes, SMBG15C-E3/52 is AEC-Q101 qualified - confirmed by Vishay documentation (Document Number 88456, page 2, footnote 1). The HE3 suffix indicates AEC-Q101 qualification, but the E3/52 variant is also explicitly listed as qualified in the ordering table and mechanical data section, meeting stress tests for automotive under-hood environments.
What is the maximum clamping voltage of SMBG15C-E3/52 under surge conditions?
The maximum clamping voltage (VC) of SMBG15C-E3/52 is 24.4 V at 24.6 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Can SMBG15C-E3/52 replace SMBJ15CA in an existing design?
SMBG15C-E3/52 is not a direct pin-compatible replacement for SMBJ15CA due to different package outlines: SMBG uses DO-215AA (SMBG), while SMBJ uses DO-214AA (SMB). Though both are surface-mount and functionally similar, PCB land patterns differ - requiring layout revision. Thermal and electrical specs align closely, but mechanical fit must be verified.
What is the leakage current specification for SMBG15C-E3/52 at its stand-off voltage?
SMBG15C-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 15 V stand-off voltage (VWM), measured at TA = 25 °C. This ultra-low leakage ensures minimal impact on high-impedance sensor bias networks and battery-powered circuits where quiescent current matters.
SMBG15C-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:
- -
- 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-E3/52 FAQ
1.How can I place an order for SMBG15C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG15C-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 SMBG15C-E3/52 reliable?
The price and inventory of SMBG15C-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 SMBG15C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG15C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG15C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG15C-E3/52?
SMBG15C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG15C-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 SMBG15C-E3/52?
For technical support, including SMBG15C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG15C-E3/52 requirements.
6.How does Aetrix verify that SMBG15C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG15C-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 SMBG15C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG15C-E3/52?
All SMBG15C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG15C-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 SMBG15C-E3/52 part is unused and in its original packaging.
Return procedure for SMBG15C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG15C-E3/52 Tags
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