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Vishay General Semiconductor - Diodes Division SMBJ110A-E3/5B
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- Part No.:
- SMBJ110A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110A-E3/5B.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,060
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Product details
Overview
SMBJ110A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. 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.
For engineers reviewing the SMBJ110A-E3/5B datasheet, SMBJ110A-E3/5B pinout, SMBJ110A-E3/5B application, or SMBJ110A-E3/5B equivalent, this device is selected for robust overvoltage protection on DC power rails, MOSFET gate drivers, and industrial sensor signal lines where fast response (<1 ps), low clamping ratio, and AEC-Q101-qualified reliability are required.
Technical Context
The SMBJ110A-E3/5B operates as a unidirectional avalanche diode, conducting only in reverse bias above its breakdown threshold to shunt transient energy to ground. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling precise clamping within ±5% of rated VC across production lots.
Thermally, it delivers 5.0 W steady-state power dissipation at TA = 50 °C with RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to +150 °C junction temperature. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 120 VAC-derived supplies. |
| VBR @ IT = 1 mA | 122–135 V - Breakdown voltage range confirming tight tolerance for predictable clamping onset in high-voltage industrial systems. |
| VC @ IPPM = 3.4 A | 177 V - Clamped voltage during 10/1000 µs transient; limits downstream IC stress to ≤177 V under worst-case 600 W surge. |
| PPPM | 600 W - Peak pulse power handling per single 10/1000 µs event; supports IEC 61000-4-5 Level 4 surge immunity testing. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine); protects against accidental polarity reversal or inrush events. |
| TJ max. | +150 °C - Maximum junction temperature enabling use in under-hood automotive and high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.205" × 0.130" footprint; compatible with automated pick-and-place and reflow profiles up to 260 °C peak. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input / transient return path | Connected to protected line (e.g., DC+ rail); conducts during reverse transient when cathode is grounded. |
| Cathode | Clamping reference / ground connection | Must be tied to system ground or low-impedance return; establishes clamping threshold relative to ground potential. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 surge immunity requirements for industrial control and telecom infrastructure. |
| 177 V clamping voltage at 3.4 A | Provides 37% clamping ratio (VC/VWM), limiting voltage overshoot to safe levels for 150 V-rated MOSFETs and gate drivers. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage (<1 µA at VWM) across temperature and lifetime in harsh environments. |
| RoHS-compliant, commercial grade (E3 suffix) | Meets global environmental regulations without halogen content restrictions; suitable for consumer, industrial, and computing applications. |
| MSL Level 1, 260 °C reflow compatible | Eliminates moisture sensitivity concerns and enables standard SMT assembly without baking or special handling. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of IGBT gate driver supply rails against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes on 12 V or 24 V DC bus lines upstream of gate driver ICs. Use Value: Prevents gate oxide damage by limiting voltage to ≤177 V during 600 W surges, extending driver IC lifetime in factory automation systems. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins from load dump and jump-start transients. IC Role / Device Role / Timing Role: Standoff protection element placed between LIN line and ground, activated only during >122 V events. Use Value: Maintains signal integrity below 110 V normal operation while clamping 12 V system transients to <177 V, meeting ISO 7637-2 Pulse 5a requirements. |
| Telecom Power Supply Inputs | Renewable Energy Inverter DC Links |
|
Use Scenario: Overvoltage suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary transient shunt on DC input stage, coordinated with upstream MOVs for staged energy absorption. Use Value: Responds in <1 ps to clamp 10/1000 µs surges to 177 V, preventing latch-up in PMICs and protecting isolated DC/DC controllers. |
Use Scenario: Protection of photovoltaic string combiner box inputs against lightning-induced common-mode transients on 1000 V DC strings. IC Role / Device Role / Timing Role: Secondary-level clamping device on PV+ rail, used in parallel arrays to distribute 600 W surge energy. Use Value: Withstands repeated 1000 V DC bias while clamping transients to 177 V, reducing failure rate in solar farm monitoring electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected where halogen-free materials are mandated by OEM sustainability policies. | Choose M3/5B for green manufacturing programs requiring halogen-free bill-of-materials. |
| SMBJ110AHM3_B/I | AEC-Q101 qualified, halogen-free, 13" tape-and-reel packaging; same VWM, VBR, VC, PPPM. | Qualified for automotive under-hood use; validated for temperature cycling, humidity, and mechanical shock per AEC-Q101. | Specify HM3_B/I for automotive-grade designs requiring certified reliability beyond commercial spec. |
Compared with SMBJ110A-E3/5B, the M3/5B offers identical performance with halogen-free construction, while SMBJ110AHM3_B/I adds AEC-Q101 qualification for automotive deployment-neither is pin-compatible with bidirectional variants like SMBJ110CA, and all require cathode-grounded layout.
Availability
SMBJ110A-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power inputs, renewable energy inverters, and automotive body control modules requiring stable component supply, consistent lead-time visibility, and full traceability.
Supply support for SMBJ110A-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 application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting industrial, automotive, and telecom systems where robustness and repeatable clamping performance are critical.
FAQ
What is the maximum clamping voltage of SMBJ110A-E3/5B under a 10/1000 µs surge?
The SMBJ110A-E3/5B has a maximum clamping voltage (VC) of 177 V when subjected to its rated peak pulse current of 3.4 A with a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88392 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The SMBJ110A-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ110A-E3/5B suitable for automotive applications?
The SMBJ110A-E3/5B is a commercial-grade, RoHS-compliant part and is not AEC-Q101 qualified. For automotive under-hood or safety-critical use, Vishay offers the SMBJ110AHM3_B/I variant, which carries full AEC-Q101 qualification. The SMBJ110A-E3/5B may be used in non-automotive or non-safety-related vehicle subsystems (e.g., infotainment power rails) but requires explicit customer validation per ISO/TS 16949 design controls.
What does the "E3/5B" suffix indicate in SMBJ110A-E3/5B?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "5B" specifies packaging in 13-inch diameter plastic tape-and-reel with 3200 units per reel. This ordering code aligns with Vishay's standard commercial distribution channel and is distinct from AEC-Q101 variants (HE3/HM3) or halogen-free-only versions (M3). The SMBJ110A-E3/5B meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow requirements.
How does SMBJ110A-E3/5B differ from bidirectional variants like SMBJ110CA?
The SMBJ110A-E3/5B is unidirectional, with polarity marked by a cathode band and intended for DC line-to-ground protection. In contrast, SMBJ110CA is bidirectional, lacks polarity marking, and clamps symmetrically in both directions-making it suitable for AC signal lines or differential buses. Their VBR, VC, and PPPM values differ slightly due to internal structure; SMBJ110A-E3/5B cannot substitute for SMBJ110CA without circuit redesign and grounding reassessment.
What thermal derating applies to SMBJ110A-E3/5B above 25 °C ambient?
SMBJ110A-E3/5B follows Vishay's standard derating curve (Figure 2 in doc 88392): its peak pulse power capability decreases linearly above TA = 25 °C, reaching ~50% of 600 W at TA = 100 °C. Steady-state power dissipation (PD) is rated at 5.0 W at TA = 50 °C and must be further reduced per RθJA = 100 °C/W. Layout with 0.2" × 0.2" copper pads per terminal is required to achieve published ratings. The SMBJ110A-E3/5B remains fully operational up to TJ = +150 °C.
SMBJ110A-E3/5B 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-E3/5B FAQ
1.How can I place an order for SMBJ110A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110A-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 SMBJ110A-E3/5B reliable?
The price and inventory of SMBJ110A-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 SMBJ110A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ110A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110A-E3/5B?
SMBJ110A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110A-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 SMBJ110A-E3/5B?
For technical support, including SMBJ110A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110A-E3/5B requirements.
6.How does Aetrix verify that SMBJ110A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ110A-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 SMBJ110A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ110A-E3/5B?
All SMBJ110A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110A-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 SMBJ110A-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ110A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110A-E3/5B Tags
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