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Vishay General Semiconductor - Diodes Division SMBG110A-E3/5B
- Part No.:
- SMBG110A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG110A-E3/5B.pdf
- Description:
- TVS DIODE 110VWM 177VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,126
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Product details
Overview
SMBG110A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA test current, 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 line and industrial sensor interface protection.
For engineers reviewing the SMBG110A-E3/5B datasheet, SMBG110A-E3/5B pinout, SMBG110A-E3/5B application, or SMBG110A-E3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and packaging configuration for reliable ESD/surge design-in.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: under normal bias it presents high impedance (<1.0 μA leakage at 110 V), then rapidly avalanches below 135 V to clamp transients. Its glass-passivated junction ensures stable breakdown and low incremental surge resistance, enabling fast response to sub-nanosecond ESD events while sustaining repetitive 600 W pulses at 0.01% duty cycle.
The SMBG110A-E3/5B is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports automated SMT placement, meets MSL Level 1 (260 °C reflow peak), and is qualified to AEC-Q101 - confirming suitability for automotive power distribution and engine control unit (ECU) signal line protection where reliability under thermal cycling and vibration is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before conduction begins; defines safe working margin for 12 V/24 V/48 V automotive and industrial bus lines. |
| VBR (min/max) | 122 V / 135 V at 1 mA - Confirmed avalanche onset range; ensures predictable triggering without premature breakdown during load dump or cold-crank conditions. |
| VC @ IPPM | 177 V at 3.4 A - Clamping voltage under 10/1000 μs surge; limits downstream IC stress to <180 V during ISO 7637-2 Pulse 5a (load dump). |
| PPPM | 600 W - Peak pulse power handling capability; supports transient energy absorption up to 0.6 J per event without degradation. |
| TJ Range | −55 °C to +150 °C - Full automotive-grade junction temperature range; enables operation in under-hood ECUs and motor drive enclosures. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs PCB thermal pad sizing for sustained surge duty cycles. |
| AEC-Q101 | Qualified - Validated for automotive applications including temperature cycling, mechanical shock, and humidity testing per AEC specification. |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile gull-wing leaded case with matte tin-plated terminals, UL 94 V-0 molding compound, and cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection point in reverse-biased protection configuration | Connected to protected line (e.g., CAN_H, LIN, or 12 V rail); clamps to cathode when transient exceeds VWM. |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance chassis; completes shunt path during avalanche conduction. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump) without derating or parallel staging. |
| AEC-Q101 qualification | Validates long-term reliability in automotive environments including thermal shock, mechanical vibration, and humidity exposure per JEDEC standards. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage drift over time and temperature - critical for battery-backed systems and always-on modules. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning, reducing manufacturing complexity and moisture-related assembly defects. |
| Low profile SMBG package | 0.030" height enables compact placement near connectors or IC inputs; gull-wing leads improve solder joint reliability vs. J-lead alternatives. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Protecting 12 V/24 V supply rails in engine control units (ECUs) and body control modules (BCMs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and ground, triggered within nanoseconds upon overvoltage detection. Use Value: Limits rail voltage to ≤177 V during 120 V load dump events, preventing damage to microcontrollers, CAN transceivers, and voltage regulators. |
Use Scenario: Safeguarding analog input pins of industrial PLC analog I/O modules connected to 4–20 mA current loops or thermocouple sensors. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (used in back-to-back pair) clamps both positive and negative transients induced by field wiring faults. Use Value: Maintains signal integrity by suppressing ±1 kV EFT bursts (IEC 61000-4-4) and 4 kV ESD (IEC 61000-4-2) without adding capacitance that distorts low-bandwidth sensor signals. |
| Telecom Power Feeds | Consumer Appliance Motor Drivers |
|
Use Scenario: Overvoltage protection on −48 V DC telecom power feeds feeding remote radio units (RRUs) and baseband processing boards. IC Role / Device Role / Timing Role: Unidirectional TVS configured with cathode to −48 V rail and anode to ground, clamping positive surges only. Use Value: Withstands 600 W surges while maintaining <1.0 μA leakage at −48 V, minimizing standby power loss and ensuring compatibility with -72 V to -40 V operational range. |
Use Scenario: Input-stage protection for BLDC motor driver ICs in smart home appliances (e.g., washing machine inverter boards) exposed to inductive kickback. IC Role / Device Role / Timing Role: Fast-acting shunt device placed across H-bridge high-side FET source-drain or gate drive lines. Use Value: Clamps 100 V inductive spikes within 1 ns, preventing gate oxide rupture and latch-up in 600 V MOSFET drivers operating at 20 kHz PWM frequencies. |
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-E3/5B | Same VWM (110 V), but lower PPPM = 600 W (same rating), higher VC = 187 V at 3.2 A; SMBJ package has larger footprint and higher RθJA (125 °C/W). | Less suitable for space-constrained automotive modules; requires larger PCB pad area and exhibits higher thermal rise under repeated surges. | Select SMBG110A-E3/5B when board real estate is limited and thermal performance must be optimized on small copper pads. |
| SMCJ110A-E3/5B | Same VWM and VBR, but PPPM = 1500 W and VC = 187 V at 8.0 A; SMC package offers higher surge capacity but doubles footprint and height. | Better for high-energy lightning-induced surges (IEC 61000-4-5), but over-specified for typical automotive load dump; increases BOM cost and layout area. | Choose SMBG110A-E3/5B for cost-sensitive, volume automotive applications where 600 W is sufficient and AEC-Q101 compliance is mandatory. |
Compared with SMBJ110A-E3/5B and SMCJ110A-E3/5B, the SMBG110A-E3/5B delivers identical voltage ratings in a smaller, thermally superior package with AEC-Q101 validation - making it the optimal choice for space- and reliability-critical automotive and industrial control designs requiring precise 110 V clamping.
Availability
SMBG110A-E3/5B is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom power feed stabilization requiring stable component supply across multi-year production programs.
Supply support for SMBG110A-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, efficiency, and automotive-grade qualification.
The SMBG Transient Voltage Suppressor family is engineered for high-reliability overvoltage protection in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the SMBG110A-E3/5B under standard test conditions?
The SMBG110A-E3/5B has a maximum clamping voltage (VC) of 177 V when subjected to its rated peak pulse current of 3.4 A using a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry remains protected below 180 V during standardized surge events - a key parameter for validating compliance with ISO 7637-2 Pulse 5a requirements in automotive designs featuring the SMBG110A-E3/5B.
Is the SMBG110A-E3/5B qualified for automotive applications?
Yes, the SMBG110A-E3/5B is explicitly AEC-Q101 qualified, as confirmed in Vishay's official datasheet revision 09-Jan-2024 (Document Number: 88456). This qualification covers stress tests including temperature cycling, mechanical shock, and humidity resistance - verifying its suitability for under-hood and chassis-mounted automotive electronics where the SMBG110A-E3/5B serves as primary transient suppression on power and signal lines.
What does the "E3/5B" suffix indicate in SMBG110A-E3/5B?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "5B" specifies packaging in 13-inch diameter plastic tape and reel containing 3200 units. This format ensures compatibility with high-speed SMT pick-and-place equipment and supports just-in-time manufacturing workflows where the SMBG110A-E3/5B is deployed in volume automotive and industrial production.
How does the SMBG110A-E3/5B differ from bidirectional TVS diodes like SMBG110CA?
The SMBG110A-E3/5B is unidirectional and conducts only during positive overvoltage relative to ground, whereas SMBG110CA is bidirectional and protects against surges of either polarity. The SMBG110A-E3/5B exhibits lower leakage (<1.0 μA at 110 V) and is preferred for DC power rail protection, while SMBG110CA suits AC-coupled or floating signal lines - a functional distinction critical when selecting the correct variant of the SMBG110A-E3/5B for a given circuit topology.
What is the thermal resistance junction-to-ambient (RθJA) for the SMBG110A-E3/5B?
The SMBG110A-E3/5B has a typical RθJA of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. This value directly impacts thermal design: for example, dissipating 1 W continuously would raise junction temperature by ~100 °C above ambient - underscoring why the SMBG110A-E3/5B is used for transient (not continuous) power dissipation and must be paired with appropriate PCB copper area to manage short-duration 600 W pulses.
SMBG110A-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:
- 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-E3/5B FAQ
1.How can I place an order for SMBG110A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG110A-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 SMBG110A-E3/5B reliable?
The price and inventory of SMBG110A-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 SMBG110A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG110A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG110A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG110A-E3/5B?
SMBG110A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG110A-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 SMBG110A-E3/5B?
For technical support, including SMBG110A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG110A-E3/5B requirements.
6.How does Aetrix verify that SMBG110A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG110A-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 SMBG110A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG110A-E3/5B?
All SMBG110A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG110A-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 SMBG110A-E3/5B part is unused and in its original packaging.
Return procedure for SMBG110A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG110A-E3/5B Tags
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