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Vishay General Semiconductor - Diodes Division SMBJ110A-E3/52
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- Part No.:
- SMBJ110A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110A-E3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:20,490
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Product details
Overview
SMBJ110A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on 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 - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom infrastructure.
For engineers reviewing the SMBJ110A-E3/52 datasheet, SMBJ110A-E3/52 pinout, SMBJ110A-E3/52 application, or SMBJ110A-E3/52 equivalent, key selection criteria include unidirectional polarity, 1.0 µA max reverse leakage at VWM, 150 °C max junction temperature, MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin-plated leads suitable for automated SMT placement.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
The SMBJ110A-E3/52 is rated for 600 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, and supports 100 A non-repetitive forward surge current (IFSM) for 8.3 ms half-sine wave - confirming suitability for high-energy transient suppression in DC bus and input stage protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuit. |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - Confirmed breakdown window ensures reliable triggering without premature conduction. |
| VC @ IPPM | 177 V at 3.4 A - Clamping voltage during 10/1000 µs surge; limits stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capacity; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | ≤1.0 µA - Ultra-low reverse leakage preserves efficiency in high-impedance bias networks and sensor front-ends. |
| TJ max. | 150 °C - Enables operation in automotive under-hood and industrial ambient environments without derating. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.21 mm × 4.06 mm footprint and 2.20 mm height; compatible with JEDEC MS-012. |
Pinout & Package
Package: SMB (DO-214AA), unidirectional configuration with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential node; completes clamping path during overvoltage events. |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 110 V rail); avalanche conduction initiates here when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates compliance with IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| Glass passivated chip junction | Ensures long-term VBR stability and low leakage drift across temperature and lifetime. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow without preconditioning; eliminates moisture-related popcorning risk. |
| RoHS-compliant, halogen-free option available | E3 suffix confirms commercial-grade environmental compliance per EU Directive 2011/65/EU. |
| 100 A IFSM (8.3 ms half-sine) | Enables use in AC/DC rectifier input stages where high inrush or fault currents occur. |
Applications
| Industrial Power Supply Input Protection | Telecom DC Feeder Line Protection |
|---|---|
|
Use Scenario: 110 V DC input stage of DIN-rail mounted power supply exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between +110 V rail and chassis ground to limit surge voltage to ≤177 V. Use Value: Prevents damage to upstream rectifier diodes and downstream DC-DC controllers by diverting >3.4 A transient current away from sensitive nodes. |
Use Scenario: -48 V telecom DC distribution feeders subject to lightning-induced common-mode surges up to 1 kV. IC Role / Device Role / Timing Role: Paired unidirectional SMBJ110A-E3/52 devices used in back-to-back configuration on differential pair to clamp both polarities. Use Value: Maintains signal integrity on RS-485/RS-422 data links while meeting Telcordia GR-1089-CORE surge immunity requirements. |
| Automotive Body Control Module (BCM) Power Rail | Industrial Sensor Signal Conditioning Interface |
|
Use Scenario: 110 V battery-derived auxiliary rail in commercial vehicle BCM subjected to ISO 7637-2 Pulse 5a load dump. IC Role / Device Role / Timing Role: Primary clamping device on main power input, coordinated with upstream fuse and downstream LC filter. Use Value: Limits transient overshoot to <180 V, ensuring microcontroller and CAN transceiver survival per AEC-Q100 stress test profiles. |
Use Scenario: 110 V excitation supply for strain-gauge bridge sensors in hydraulic pressure monitoring systems. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bridge supply terminals to suppress EFT bursts coupled via long cable runs. Use Value: Prevents offset drift and ADC saturation caused by sub-100 ns ESD events, preserving ±0.1% measurement accuracy. |
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-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected when halogen-free material compliance is mandated by OEM spec. | Choose SMBJ110A-M3/52 for green manufacturing programs requiring IEC 61249-2-21 compliance. |
| SMCJ110A-E3/52 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM. | Higher surge margin for critical infrastructure; requires larger PCB area and different thermal layout. | Choose SMCJ110A-E3/52 when system-level surge testing exceeds 600 W or when field failure history demands extra margin. |
Compared with SMBJ110A-M3/52, the SMBJ110A-E3/52 offers identical protection performance with standard RoHS compliance; compared with SMCJ110A-E3/52, it trades 900 W lower peak power for 30% smaller footprint and lower thermal mass - optimizing space-constrained industrial modules where 600 W meets IEC 61000-4-5 Level 3 requirements.
Availability
SMBJ110A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, telecom DC feeder protection, and automotive body control modules requiring stable component supply with full traceability and no obsolescence risk through 2028.
Supply support for SMBJ110A-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 optimization.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting industrial automation, telecom infrastructure, and automotive subsystems where consistent clamping performance and long-term stability are critical.
FAQ
What is the maximum clamping voltage of SMBJ110A-E3/52 under standard test conditions?
The SMBJ110A-E3/52 has a maximum clamping voltage (VC) of 177 V when subjected to its rated peak pulse current of 3.4 A using the 10/1000 µs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBJ110A-E3/52 suitable for automotive applications?
SMBJ110A-E3/52 is qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes; the E3/52 variant is commercial grade and not AEC-Q101 certified. For automotive use, specify SMBJ110AHE3_B/H or SMBJ110AHM3_B/H - these versions undergo stress testing including temperature cycling, humidity bias HAST, and mechanical shock per AEC-Q101 Rev D.
What does the "-E3/52" suffix indicate in SMBJ110A-E3/52?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/52" specifies packaging in 7" diameter plastic tape and reel with 750 units per reel. This ordering code aligns with Vishay's standard commercial logistics format and confirms compliance with EU Directive 2011/65/EU without halogen restrictions.
How does SMBJ110A-E3/52 differ from bidirectional SMBJ110CA variants?
SMBJ110A-E3/52 is unidirectional with cathode band marking and conducts only in reverse avalanche mode; SMBJ110CA is bidirectional with symmetrical VBR in both directions and no polarity marking. The unidirectional version provides lower leakage and tighter VBR tolerance, making SMBJ110A-E3/52 preferred for DC rail protection where polarity is fixed.
What is the thermal resistance of SMBJ110A-E3/52, and how does it affect layout design?
SMBJ110A-E3/52 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 at full 5.0 W steady-state dissipation, designers must ensure adequate copper area and avoid thermal bottlenecks - especially important in sealed enclosures or high-ambient industrial settings.
SMBJ110A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ110A-E3/52 FAQ
1.How can I place an order for SMBJ110A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110A-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 SMBJ110A-E3/52 reliable?
The price and inventory of SMBJ110A-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 SMBJ110A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ110A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110A-E3/52?
SMBJ110A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110A-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 SMBJ110A-E3/52?
For technical support, including SMBJ110A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110A-E3/52 requirements.
6.How does Aetrix verify that SMBJ110A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ110A-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 SMBJ110A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ110A-E3/52?
All SMBJ110A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110A-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 SMBJ110A-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ110A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110A-E3/52 Tags
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