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Vishay General Semiconductor - Diodes Division SMBG110A-E3/52
- Part No.:
- SMBG110A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG110A-E3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,247
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Product details
Overview
SMBG110A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount 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 dissipation with a 10/1000 μs waveform - deployed in automotive power electronics, industrial motor drives, and telecom interface protection.
For engineers reviewing the SMBG110A-E3/52 datasheet, SMBG110A-E3/52 pinout, SMBG110A-E3/52 application, or SMBG110A-E3/52 equivalent, key selection criteria include clamping performance under 3.4 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification for automotive use, and DO-215AA (SMBG) package compatibility with automated SMT assembly.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 μA at 110 V) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
Thermal design is constrained by RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads) and TJ(max) = 150 °C, requiring layout-aware thermal relief. The device supports repetitive 0.01% duty cycle pulses and meets UL 497B recognition (QVGQ2) and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 122 V / 135 V at 1 mA - Ensures reliable avalanche initiation within defined tolerance band |
| VC @ IPPM | 177 V at 3.4 A - Clamping voltage limits stress on protected ICs during 10/1000 μs transients |
| PPPM | 600 W - Peak surge power handling capability per standard waveform, defining protection margin |
| IFSM | 100 A - Single half-sine 8.3 ms surge rating for inductive load switching events |
| TJ(max) | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Leakage @ VWM | ≤1.0 μA - Minimal standby current avoids loading sensitive sensor or bias networks |
Pinout & Package
Package: SMBG (DO-215AA) - Low-profile, surface-mount case with matte tin-plated leads, compliant with J-STD-002 solderability and JESD22-B102 reliability standards. Molding compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to protected line - conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events without degradation |
| Glass passivated junction | Ensures stable VBR and low leakage across temperature and lifetime |
| MSL Level 1 (260 °C) | Compatible with lead-free reflow profiles without moisture sensitivity concerns |
| UL 497B recognized (QVGQ2) | Approved for telecom and industrial signal line protection per safety standard |
Applications
| Automotive Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12 V/24 V supply rails in vehicle ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and regulator input. Use Value: Clamps 177 V at 3.4 A to keep downstream LDOs and microcontrollers within safe operating area during ISO 7637-2 Pulse 5a events. | Use Scenario: Safeguarding gate drivers and feedback sensors in variable-frequency AC drives. IC Role / Device Role / Timing Role: Parallel-connected TVS on IGBT gate-source and current-sense amplifier inputs. Use Value: Sub-1 ns response prevents false triggering or latch-up caused by fast dv/dt noise from power switching. |
| Telecom Interface Protection | Consumer Power Adapter Input Stage |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMBG110A-E3/52 used in unidirectional DC bias rail protection. Use Value: 1.0 μA max leakage at 110 V avoids signal distortion or offset drift in precision analog front-ends. | Use Scenario: Secondary-side overvoltage suppression in offline SMPS after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Clamp diode across output capacitor to absorb transformer leakage energy and rectifier reverse recovery spikes. Use Value: 100 A IFSM rating handles repetitive 8.3 ms surges from no-load to full-load transitions without parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-E3/52 | Same VWM/VBR/VC specs but SMB (DO-214AA) package - 2.4 mm height vs. SMBG's 1.6 mm | Less suitable for ultra-low-profile layouts; identical electrical performance in PCB-constrained designs | Select SMBG110A-E3/52 when board height ≤1.6 mm is required; SMBJ110A-E3/52 if legacy footprint compatibility needed |
| SMCJ110A-E3/52 | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, RθJA = 35 °C/W - better thermal performance but 3× footprint area | Better for high-repetition surges or higher ambient temperatures; overkill for single-event protection in space-limited modules | Choose SMBG110A-E3/52 for cost- and size-sensitive consumer/automotive modules; SMCJ110A-E3/52 where sustained surge duty exists |
Compared with SMBJ110A-E3/52 and SMCJ110A-E3/52, SMBG110A-E3/52 delivers identical clamping performance in the smallest possible surface-mount form factor - critical for modern ADAS camera modules and compact power supplies where Z-height and PCB real estate are constrained.
Availability
SMBG110A-E3/52 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor controllers, and telecom infrastructure equipment requiring stable component supply and AEC-Q101 compliance.
Supply support for SMBG110A-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 automotive-grade qualification.
The SMBG Transient Voltage Suppressor family targets high-density, high-reliability overvoltage protection in space-constrained automotive, industrial, and telecom applications - engineered for low profile, automated assembly, and AEC-Q101 validation.
FAQ
What is the clamping voltage of SMBG110A-E3/52 and how is it measured?
The SMBG110A-E3/52 has a maximum clamping voltage (VC) of 177 V, measured at a peak pulse current (IPPM) of 3.4 A using a standardized 10/1000 μs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is guaranteed per Vishay Document Number 88456, Revision 09-Jan-2024. The SMBG110A-E3/52 achieves this clamping performance while maintaining low incremental resistance for effective energy diversion.
Is SMBG110A-E3/52 suitable for automotive applications?
Yes, SMBG110A-E3/52 is AEC-Q101 qualified and rated for operating junction temperatures from –55 °C to +150 °C, making it suitable for under-hood and cabin automotive applications including body control modules, infotainment power supplies, and ADAS sensor interfaces. Its UL 497B recognition and robust surge ratings align with ISO 7637-2 and IEC 61000-4-5 requirements. The SMBG110A-E3/52 also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility.
What does the "E3/52" suffix mean in SMBG110A-E3/52?
The "E3" suffix indicates RoHS-compliant, industrial-grade construction with matte tin-plated leads; "52" denotes the preferred packaging code - 750 pieces per 7-inch plastic tape-and-reel. This format supports high-speed pick-and-place assembly and complies with J-STD-002 solderability and JESD22-B102 mechanical reliability standards. The SMBG110A-E3/52 is distinct from HE3 (AEC-Q101 qualified) and M3 (halogen-free) variants, all sharing the same electrical specifications but differing in compliance scope and packaging.
How does SMBG110A-E3/52 differ from bidirectional TVS diodes like SMBG110CA?
SMBG110A-E3/52 is unidirectional and features a cathode band marking; it conducts only in reverse avalanche mode and blocks forward current above ~3.5 V. In contrast, SMBG110CA is bidirectional with symmetrical clamping in both polarities and no polarity marking. The SMBG110A-E3/52 is selected for DC rail protection where polarity is fixed, offering tighter leakage control (≤1.0 μA) versus bidirectional types (which may exhibit higher leakage at low VWM). Electrical parameters such as VBR and VC are otherwise matched.
What is the thermal resistance of SMBG110A-E3/52 and how does it affect layout?
The SMBG110A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's DO-215AA outline drawing. To maintain TJ ≤ 150 °C under repeated surges, designers must ensure adequate copper area and avoid excessive trace length or isolation. The SMBG110A-E3/52 benefits from thermal vias under pads and shared ground planes to reduce effective RθJA.
SMBG110A-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:
- 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-E3/52 FAQ
1.How can I place an order for SMBG110A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG110A-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 SMBG110A-E3/52 reliable?
The price and inventory of SMBG110A-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 SMBG110A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG110A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG110A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG110A-E3/52?
SMBG110A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG110A-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 SMBG110A-E3/52?
For technical support, including SMBG110A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG110A-E3/52 requirements.
6.How does Aetrix verify that SMBG110A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG110A-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 SMBG110A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG110A-E3/52?
All SMBG110A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG110A-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 SMBG110A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG110A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG110A-E3/52 Tags
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