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Vishay General Semiconductor - Diodes Division SMBG110A-M3/52
- Part No.:
- SMBG110A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG110A-M3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,212
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Product details
Overview
SMBG110A-M3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 177 V maximum clamping voltage (VC) at 3.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power electronics, industrial motor drives, and telecom interface protection.
For engineers reviewing the SMBG110A-M3/52 datasheet, SMBG110A-M3/52 pinout, SMBG110A-M3/52 application, or SMBG110A-M3/52 equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, AEC-Q101 qualification, 150 °C max junction temperature, and 1.0 µA reverse leakage at VWM.
Technical Context
This TVS diode operates as a clamping-type surge protector, leveraging an avalanche breakdown mechanism to limit transient voltages before they damage downstream ICs or MOSFETs. Its glass-passivated junction ensures stable VBR tolerance and low incremental surge resistance, while its low-profile SMBG package supports automated SMT placement on high-density PCBs.
The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), exhibits 100 °C/W junction-to-ambient thermal resistance, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak - confirming suitability for industrial and automotive reflow processes without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 122 V / 135 V at 1 mA - Ensures reliable turn-on within defined tolerance band under standardized test conditions |
| VC @ IPPM | 177 V at 3.4 A - Clamped voltage seen by protected circuit during 10/1000 µs transient event |
| PPPM | 600 W - Peak surge power handling capability per single transient, enabling protection against IEC 61000-4-5 Level 3/4 surges |
| IR @ VWM | 1.0 µA - Minimal leakage current ensures negligible standby power loss and signal integrity in high-impedance circuits |
| TJ max | 150 °C - Supports operation in under-hood automotive and industrial environments with elevated ambient temperatures |
| Package | SMBG (DO-215AA) - Standardized surface-mount outline with 0.235" × 0.255" footprint and gull-wing leads for automated assembly |
Pinout & Package
Package: SMBG (DO-215AA), halogen-free, RoHS-compliant, AEC-Q101 qualified. Matte tin-plated gull-wing terminals solderable per J-STD-002 and JESD 22-B102; cathode indicated by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Provides low-impedance path to ground during transient clamping; must be routed with minimal inductance |
| Cathode | Current exit point in forward bias; connected to protected line | Accepts surge energy from protected node (e.g., 12 V rail or CAN bus line) and shunts it to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control units and ADAS power rails |
| 600 W peak pulse power | Withstands 10/1000 µs transients up to 3.4 A without degradation - meets ISO 7637-2 Pulse 1/2b and IEC 61000-4-5 requirements |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR ≈ 55 V) and faster response than Zener-based alternatives - critical for protecting fast-switching MOSFET gates |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead in high-volume SMT lines |
| Glass passivated junction | Improves long-term stability of VBR and leakage performance across temperature and humidity stress - essential for 15+ year industrial deployments |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges above 110 V. Use Value: Limits peak voltage to ≤177 V during 100 V/350 ms load dump events, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Safeguarding gate drivers and feedback sensors in variable-frequency AC drives exposed to inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted across DC-link capacitor terminals and IGBT gate-emitter paths. Use Value: Suppresses >1 kV spikes induced by 100 A+ switching currents, preserving gate oxide integrity and analog sensor accuracy. |
| Telecom Interface Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding RS-485, CAN, or Ethernet PHY lines from lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Unidirectional TVS placed on each data line relative to local ground plane. Use Value: Clamps common-mode transients to <180 V within <1 ns, maintaining signal integrity while meeting IEC 61000-4-5 Level 4 immunity. | Use Scenario: Secondary-side overvoltage suppression in offline SMPS after rectification and bulk capacitance. IC Role / Device Role / Timing Role: TVS connected across output capacitor to absorb reflected surge energy from primary-side failures. Use Value: Prevents secondary-side voltage runaway during open-loop faults, ensuring compliance with UL 62368-1 fault condition limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG110AHE3/52 | AEC-Q101 qualified; identical electrical specs; same SMBG package; HE3 suffix denotes AEC-Q101 grade | Required for automotive safety-critical modules where full AEC-Q101 traceability is mandated | Select SMBG110AHE3/52 when qualifying for ASIL-B systems or Tier 1 automotive BOMs requiring certified lot traceability |
| SMBJ110A-M3/52 | Same VWM/VBR/VC; lower PPPM = 600 W but higher IPPM = 3.6 A; SMB (DO-214AA) package - 0.215" × 0.165", slightly smaller footprint | Preferred where board space is constrained and thermal margin allows alternate pad layout | Choose SMBJ110A-M3/52 only if existing layout accommodates DO-214AA pads and thermal design accounts for higher RθJA (125 °C/W vs. 100 °C/W) |
Compared with SMBG110A-M3/52, SMBG110AHE3/52 adds full AEC-Q101 documentation without electrical trade-offs, while SMBJ110A-M3/52 offers identical clamping performance in a smaller package but requires revised thermal and layout validation.
Availability
SMBG110A-M3/52 is available at Aetrix Electronics and suitable for automotive ECU designs, industrial motor drive protection, and telecom infrastructure surge hardening requiring stable component supply, halogen-free compliance, and AEC-Q101-qualified reliability.
Supply support for SMBG110A-M3/52 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 high-reliability, high-power, and automotive-grade solutions.
The SMBG series was engineered specifically for surface-mount transient suppression in harsh environments - combining AEC-Q101 qualification, low-profile packaging, and repeatable clamping performance for mission-critical power and interface protection.
FAQ
What is the maximum clamping voltage of SMBG110A-M3/52 under standard test conditions?
The SMBG110A-M3/52 has a maximum clamping voltage (VC) of 177 V at 3.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBG110A-M3/52 suitable for automotive applications?
Yes, SMBG110A-M3/52 is AEC-Q101 qualified and rated for operation from −55 °C to +150 °C. Its glass-passivated junction, MSL Level 1 reflow compatibility, and 100 A surge current rating make SMBG110A-M3/52 appropriate for engine control units, body electronics, and ADAS power rail protection where reliability under thermal and mechanical stress is mandatory.
What does the "M3" suffix indicate in SMBG110A-M3/52?
The "M3" suffix in SMBG110A-M3/52 denotes halogen-free, RoHS-compliant construction with industrial-grade qualification. It confirms compliance with IEC 61249-2-21 and JESD201 Class 2 whisker resistance - distinguishing it from "E3" (standard RoHS) and "HM3" (halogen-free + AEC-Q101) variants.
How does SMBG110A-M3/52 differ from bidirectional TVS diodes like SMBG110CA?
SMBG110A-M3/52 is unidirectional and features a cathode band marking; it conducts only in reverse breakdown and blocks forward current. In contrast, SMBG110CA is bidirectional with no polarity marking and clamps transients of either polarity - making SMBG110A-M3/52 ideal for DC power lines where polarity is fixed and leakage minimization is prioritized.
What is the thermal resistance of SMBG110A-M3/52, and how does it affect PCB layout?
SMBG110A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. To maintain TJ ≤ 150 °C under repetitive surge conditions, designers must ensure adequate copper area and avoid thermal bottlenecks - underscoring why SMBG110A-M3/52's RθJA is specified with defined pad geometry.
SMBG110A-M3/52 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 177V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG110A-M3/52 FAQ
1.How can I place an order for SMBG110A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG110A-M3/52 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 SMBG110A-M3/52 reliable?
The price and inventory of SMBG110A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG110A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG110A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG110A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG110A-M3/52?
SMBG110A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG110A-M3/52 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 SMBG110A-M3/52?
For technical support, including SMBG110A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG110A-M3/52 requirements.
6.How does Aetrix verify that SMBG110A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG110A-M3/52 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 SMBG110A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG110A-M3/52?
All SMBG110A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG110A-M3/52, 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 SMBG110A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG110A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG110A-M3/52 Tags
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