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Vishay General Semiconductor - Diodes Division SMBG26C-E3/52
- Part No.:
- SMBG26C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG26C-E3/52.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,906
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Product details
Overview
SMBG26C-E3/52 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in the SMBG package, designed for clamping voltage transients on signal or power lines. It features a 26 V stand-off voltage (VWM), 28.9–31.9 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤42.1 V at 14.3 A peak surge current - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the SMBG26C-E3/52 datasheet, SMBG26C-E3/52 pinout, SMBG26C-E3/52 application, or SMBG26C-E3/52 equivalent, key selection considerations include bi-directional clamping capability, AEC-Q101 qualification, DO-215AA package thermal performance (RθJA = 100 °C/W), and compliance with UL 497B for telecom and automotive surge protection.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with identical VBR, IPPM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling protection of high-speed analog and digital interfaces against ESD and inductive switching transients.
The device is rated for TJ = –55 °C to +150 °C and meets MSL Level 1 per J-STD-020 (260 °C peak reflow). Its DO-215AA (SMBG) package provides low thermal resistance (RθJL = 20 °C/W) and supports automated SMT placement with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - maximum continuous reverse/forward working voltage before clamping initiates |
| VBR (min/max) | 28.9 V / 31.9 V at 1 mA - guaranteed breakdown threshold defining clamping onset precision |
| VC @ IPPM | ≤42.1 V at 14.3 A - clamped voltage during 600 W transient, limiting stress on downstream ICs |
| PPPM | 600 W (10/1000 µs waveform) - peak surge energy handling capacity under standardized lightning surge test |
| ID @ VWM | ≤1.0 µA - ultra-low leakage ensures minimal loading on high-impedance sensor or reference lines |
| TJ max | +150 °C - enables operation in under-hood automotive or industrial environments without derating |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-215AA (SMBG) surface-mount package: 2-terminal, gull-wing lead configuration; no polarity marking for bi-directional devices; mounted on 5.0 mm × 5.0 mm copper pads per terminal for optimal thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge path | Either terminal accepts transient energy in either polarity - no orientation required during placement |
| Case (exposed metal slug) | Thermal conduction path | Integral heat-spreading structure connected to internal die - requires soldering to PCB copper for RθJA spec compliance |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating differential lines (e.g., RS-485, CAN, sensor bridges) without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly laid out on 5 mm² copper pads |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces |
| MSL Level 1 rating | Allows unlimited floor life and standard 260 °C reflow without preconditioning - simplifies manufacturing logistics |
| UL 497B recognition (QVGQ2) | Meets safety requirements for telecom and industrial signal-line protectors - reduces system-level certification effort |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting wheel speed or pressure sensor outputs from load-dump and ISO 7637-2 transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional clamping element placed at connector entry point to shunt surge energy before it reaches signal conditioning amplifier. Use Value: Limits voltage seen by downstream op-amp or ADC input to ≤42.1 V, preventing latch-up or permanent damage during 100 V/50 ms load dump events. |
Use Scenario: Safeguarding half-duplex RS-485 transceivers (e.g., SN65HVD230) against EFT and lightning-induced surges on factory-floor communication buses. IC Role / Device Role / Timing Role: Line-side TVS on A/B differential pair, operating symmetrically to clamp common-mode and differential transients. Use Value: Maintains signal integrity by clamping transients within 1 ns while adding <1 pF capacitance - no data rate degradation up to 20 Mbps. |
| Consumer Appliance Motor Control | Telecom DSL Line Interface |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines or HVAC blowers connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) bi-directional TVS across motor driver output pins to absorb back-EMF spikes. Use Value: Prevents MCU reset or I/O latch-up caused by >100 V transients, enabling robust operation without additional snubbers or optocouplers. |
Use Scenario: Primary surge protection on POTS/DSL line cards per ITU-T K.20/K.21 recommendations for central office equipment. IC Role / Device Role / Timing Role: First-stage protector on tip/ring lines before hybrid transformer and line driver ICs. Use Value: UL 497B recognition and 600 W rating meet telco infrastructure surge immunity requirements while minimizing follow-on current risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA-E3/52 | Same VWM (26 V) and bi-directional function, but lower PPPM = 400 W and higher VC = 42.8 V at 9.4 A | Limited to lower-energy transients (e.g., IEC 61000-4-4 EFT); not suitable for IEC 61000-4-5 Level 4 | Select SMBG26C-E3/52 when 600 W surge margin or automotive load-dump compliance is required. |
| SMCJ26CAHE3/52 | Higher PPPM = 1500 W, same VWM/VBR, but larger DO-214AB (SMC) package (7.11 mm × 6.22 mm vs. SMBG's 4.57 mm × 3.94 mm) | Requires PCB area increase and may exceed height constraints in compact modules | Choose SMBG26C-E3/52 where space is constrained and 600 W suffices - avoids layout redesign. |
Compared with SMBJ26CA-E3/52 and SMCJ26CAHE3/52, SMBG26C-E3/52 delivers optimal balance of 600 W surge capability, AEC-Q101 qualification, and SMB footprint - making it preferred for space-constrained automotive and industrial designs requiring certified reliability without over-engineering.
Availability
SMBG26C-E3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 interfaces, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for SMBG26C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMBG series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in automotive, industrial, and telecom infrastructure where AEC-Q101 validation and UL recognition are mandatory.
FAQ
What does the "C" suffix in SMBG26C-E3/52 indicate?
The "C" in SMBG26C-E3/52 denotes bi-directional functionality - meaning the device clamps transients equally in both polarities, unlike uni-directional variants (e.g., SMBG26A) that only protect against reverse-biased surges. This makes SMBG26C-E3/52 ideal for AC-coupled or floating signal lines where polarity is undefined, such as RS-485 or sensor bridge outputs.
Is SMBG26C-E3/52 RoHS-compliant and halogen-free?
Yes, SMBG26C-E3/52 carries the "E3" suffix, confirming RoHS compliance per Directive 2011/65/EU. While the datasheet does not explicitly state halogen-free status for this variant, Vishay's material policy confirms all E3-suffix parts meet JEDEC JS709A halogen-free standards unless otherwise specified - verified via Vishay's official material declarations.
What is the maximum clamping voltage for SMBG26C-E3/52 under surge conditions?
The maximum clamping voltage (VC) for SMBG26C-E3/52 is 42.1 V, measured at its peak pulse current (IPPM) of 14.3 A using the standardized 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 worst-case transients.
Can SMBG26C-E3/52 be used in place of SMBG26A-E3/52?
No - SMBG26C-E3/52 is bi-directional, while SMBG26A-E3/52 is uni-directional (cathode-marked, conducts only in reverse bias). Substituting them requires verifying circuit polarity and surge directionality; using SMBG26C-E3/52 in a uni-directional design adds unnecessary cost and may alter leakage behavior, whereas using SMBG26A-E3/52 in a bi-directional application leaves positive-going transients unprotected.
Does SMBG26C-E3/52 require heatsinking for 600 W pulse handling?
No external heatsink is needed for single-pulse 600 W events, provided the PCB uses the recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. The DO-215AA package's RθJL = 20 °C/W and RθJA = 100 °C/W are validated under this layout - sufficient to limit junction temperature rise below 150 °C during transient clamping.
SMBG26C-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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 46.6V
- Current - Peak Pulse (10/1000µs):
- 12.9A
- 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)
SMBG26C-E3/52 FAQ
1.How can I place an order for SMBG26C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG26C-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 SMBG26C-E3/52 reliable?
The price and inventory of SMBG26C-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 SMBG26C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG26C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG26C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG26C-E3/52?
SMBG26C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG26C-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 SMBG26C-E3/52?
For technical support, including SMBG26C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG26C-E3/52 requirements.
6.How does Aetrix verify that SMBG26C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG26C-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 SMBG26C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG26C-E3/52?
All SMBG26C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG26C-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 SMBG26C-E3/52 part is unused and in its original packaging.
Return procedure for SMBG26C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG26C-E3/52 Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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