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Vishay General Semiconductor - Diodes Division SMBG26C-E3/5B
- Part No.:
- SMBG26C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG26C-E3/5B.pdf
- Description:
- TVS DIODE 26VWM 46.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,509
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Product details
Overview
SMBG26C-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 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 interface protection and industrial I/O line surge suppression.
For engineers reviewing the SMBG26C-E3/5B datasheet, SMBG26C-E3/5B pinout, SMBG26C-E3/5B application, or SMBG26C-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 diode operates symmetrically in both polarities, with identical electrical characteristics forward and reverse - enabling single-device protection of AC-coupled or differential signal paths. Its glass-passivated junction ensures stable leakage and robust surge handling under repetitive transients.
The device complies with ANSI/IEEE C62.35 for surge protector classification and meets UL 497B recognition (QVGQ2) for telecom and industrial protectors. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation up to 150 °C junction temperature with appropriate PCB copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - maximum continuous reverse stand-off voltage before clamping begins; defines safe operating range for protected circuitry. |
| VBR (min/max) | 28.9 V / 31.9 V at 1 mA - guaranteed breakdown threshold; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | ≤42.1 V at 14.3 A - clamping voltage under 600 W 10/1000 µs surge; limits stress on downstream ICs like microcontrollers or transceivers. |
| PPPM | 600 W - peak pulse power rating; supports high-energy ESD and lightning-induced surges per IEC 61000-4-5. |
| IPPM | 14.3 A - peak pulse current capacity; determines minimum trace width and pad size needed for safe energy dissipation. |
| TJ max | +150 °C - maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures. |
| MSL Level | Level 1 (J-STD-020) - no floor life limitation; allows indefinite storage and standard reflow without baking. |
Pinout & Package
DO-215AA (SMBG) surface-mount package: low-profile, gull-wing leads, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Bi-directional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional surge conduction path | Both terminals function identically; connects across protected line and ground (or between differential lines) without orientation constraint. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces. |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive switching (e.g., solenoid drivers) without degradation. |
| Glass passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and long-term reliability under thermal cycling. |
| UL 497B recognized (QVGQ2) | Meets safety requirements for telecom and industrial signal line protectors without additional certification effort. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free reflow profiles without preconditioning or special handling. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between signal line and chassis ground. Use Value: Limits transient voltage to ≤42.1 V, preventing damage to 3.3 V or 5 V sensor signal conditioning ICs while maintaining signal integrity. |
Use Scenario: Safeguarding PLC digital input channels against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Primary surge suppression device mounted at connector entry point. Use Value: Absorbs 600 W surges without failure, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity tests. |
| Telecom Line Protection | Consumer Device USB/UART Lines |
Use Scenario: Shielding RS-485/RS-232 transceivers in base stations and network equipment from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Bi-directional TVS across differential pair (A/B) and ground. Use Value: Symmetric clamping ensures balanced protection without skew or DC offset, preserving signal timing margins. |
Use Scenario: Adding robustness to USB 2.0 D+/D− or UART TX/RX lines in smart home hubs and portable electronics. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) transient clamp placed near connector. Use Value: Clamps ESD strikes (IEC 61000-4-2 ±8 kV contact) while adding <0.5 pF parasitic capacitance to preserve signal rise time. |
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-E3/5B | Same VWM (26 V), but higher PPPM = 600 W and lower VC = 42.1 V; identical DO-214AA (SMB) package footprint but slightly different thermal resistance (RθJA = 85 °C/W vs. 100 °C/W). | Preferred where tighter board-level thermal management is available and lower clamping voltage is critical. | Select SMBJ26CA-E3/5B if PCB copper area is ≥0.25 in² per terminal and system requires sub-42 V clamping under worst-case surge. |
| SMCJ26CA-E3/5B | Same VWM and bi-directionality, but larger DO-214AB (SMC) package, higher PPPM = 1500 W, and VC = 42.1 V; RθJA = 40 °C/W. | Suitable for high-reliability industrial systems requiring >1 kW surge handling and extended lifetime under repetitive stress. | Choose SMCJ26CA-E3/5B when surge duty cycle exceeds 0.01 % or ambient temperature routinely exceeds 85 °C. |
Compared with SMBG26C-E3/5B, SMBJ26CA-E3/5B offers marginally better thermal performance in constrained layouts, while SMCJ26CA-E3/5B delivers triple the pulse power handling at the cost of 2.5× larger footprint - making SMBG26C-E3/5B optimal for space-limited automotive and consumer designs needing AEC-Q101 compliance and proven 600 W capability.
Availability
SMBG26C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 assurance.
Supply support for SMBG26C-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, automotive qualification, and high-volume manufacturability.
The SMBG series was engineered for surface-mount transient suppression in space-constrained, high-reliability applications - particularly targeting AEC-Q101-compliant automotive subsystems and industrial equipment exposed to harsh electrical environments.
FAQ
What is the polarity configuration of SMBG26C-E3/5B?
SMBG26C-E3/5B is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. It conducts equally in both directions above its breakdown voltage, making it ideal for protecting AC-coupled signals, differential buses like RS-485, or unidirectional lines where reverse voltage risk exists. This eliminates orientation errors during automated placement.
Does SMBG26C-E3/5B meet automotive qualification standards?
Yes, SMBG26C-E3/5B is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. The qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and surge endurance - all verified per the full AEC-Q101 test plan.
What is the maximum clamping voltage for SMBG26C-E3/5B under surge conditions?
The maximum clamping voltage (VC) for SMBG26C-E3/5B is 42.1 V at 14.3 A peak pulse current (IPPM) using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream 3.3 V or 5 V logic components remain within safe voltage limits during transient events.
How does the DO-215AA (SMBG) package of SMBG26C-E3/5B compare to DO-214AA (SMB)?
The DO-215AA (SMBG) package of SMBG26C-E3/5B has identical lead pitch and gull-wing geometry to DO-214AA (SMB) but features a slightly wider body (2.35–2.48 mm vs. 2.29 mm) and longer leads (0.76–0.97 mm vs. 0.76 mm). While not pin-to-pin compatible, it maintains similar PCB layout compatibility with minor pad adjustments and offers improved thermal dissipation due to enhanced copper pad access.
Is SMBG26C-E3/5B compliant with RoHS and halogen-free requirements?
Yes, SMBG26C-E3/5B carries the "E3" suffix indicating full RoHS compliance per Directive 2011/65/EU and halogen-free status per JEDEC JS709A. The molding compound meets UL 94 V-0 flammability rating, and terminals are matte tin-plated to ensure solderability and whisker resistance per JESD 201 Class 1A.
SMBG26C-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):
- 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-E3/5B FAQ
1.How can I place an order for SMBG26C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG26C-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 SMBG26C-E3/5B reliable?
The price and inventory of SMBG26C-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 SMBG26C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG26C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG26C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG26C-E3/5B?
SMBG26C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG26C-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 SMBG26C-E3/5B?
For technical support, including SMBG26C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG26C-E3/5B requirements.
6.How does Aetrix verify that SMBG26C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG26C-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 SMBG26C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG26C-E3/5B?
All SMBG26C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG26C-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 SMBG26C-E3/5B part is unused and in its original packaging.
Return procedure for SMBG26C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG26C-E3/5B Tags
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