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Vishay General Semiconductor - Diodes Division SMBJ110CA-E3/5B
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- Part No.:
- SMBJ110CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CA-E3/5B.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,631
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Product details
Overview
SMBJ110CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power 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, sensor interfaces, and industrial I/O circuits against ESD and inductive switching surges.
For engineers reviewing the SMBJ110CA-E3/5B datasheet, SMBJ110CA-E3/5B pinout, SMBJ110CA-E3/5B application, or SMBJ110CA-E3/5B equivalent, this part serves as a RoHS-compliant, commercial-grade bidirectional TVS with MSL Level 1 moisture sensitivity, matte tin-plated leads, and UL 94 V-0 molding compound - critical for automotive-grade derivative selection, surge immunity validation, and PCB layout optimization in high-reliability DC power rails.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior regardless of transient polarity. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable breakdown characteristics over temperature (0.107 %/°C VBR tempco).
The device is rated for -55 °C to +150 °C operating junction temperature, dissipates 5.0 W continuously at TA = 50 °C, and exhibits 100 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads - requiring careful thermal pad design for repetitive surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - maximum continuous reverse working voltage before clamping initiates; defines safe operating margin for 100 V DC rail protection |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - guaranteed breakdown range ensures predictable turn-on under surge conditions |
| VC @ IPPM | 177 V at 3.4 A - clamping voltage limits downstream component stress during 10/1000 µs transients |
| PPPM | 600 W - peak pulse power handling capacity with 0.01 % duty cycle; supports single-event lightning or EFT immunity |
| IPPM | 3.4 A - peak pulse current capability derived from 10/1000 µs waveform; determines minimum series impedance for compliance |
| Junction Temp Range | -55 °C to +150 °C - enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm max length, 4.06 mm max width, and 2.20 mm max height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during negative-going transients relative to cathode reference |
| Cathode | Transient return path (bidirectional) | Connects to protected line; conducts during positive-going transients relative to anode reference |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without derating on standard PCB copper |
| 177 V clamping voltage at 3.4 A | Limits voltage overshoot to within 60 % of VWM, safeguarding 120 V-rated ICs and gate drivers |
| MSL Level 1 (260 °C peak reflow) | Supports lead-free assembly without pre-baking; compatible with standard SMT reflow profiles |
| UL 94 V-0 molding compound | Meets flammability safety requirements for enclosed industrial and telecom enclosures |
| Matte tin-plated leads | Ensures solderability per J-STD-002 and JESD 22-B102; eliminates whisker risk per JESD 201 Class 2 |
Applications
| Industrial Motor Control I/O Protection | Automotive Body Control Module (BCM) Power Rails |
|---|---|
|
Use Scenario: Protecting 24 V CAN/LIN bus power inputs and discrete I/O lines from load dump and inductive kickback in PLCs and servo drives. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point, shunting transients before reaching MCU GPIO or level translators. Use Value: Prevents latch-up and permanent damage to 3.3 V/5 V logic interfaces by limiting surge voltage to ≤177 V while maintaining 110 V system operating margin. |
Use Scenario: Safeguarding 12 V supply lines feeding microcontrollers, LIN transceivers, and LED drivers in door modules and seat controllers. IC Role / Device Role / Timing Role: Primary TVS on fused battery feed, coordinated with upstream fuse and downstream LC filtering to meet ISO 7637-2 Pulse 5a requirements. Use Value: Withstands 12 V system load dump events up to 35 V for 400 ms and clamps fast transients (Pulse 1/2a) to <177 V, preserving AEC-Q100 qualified components. |
| Telecom Remote Radio Unit (RRU) DC Feeds | Consumer Appliance Mainboard Power Inputs |
|
Use Scenario: Securing -48 V DC power inputs in outdoor base station RRUs exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: First-stage clamping device mounted at power entry, followed by MOV and filter capacitors to meet ITU-T K.21 heavy-duty surge class. Use Value: Delivers 600 W pulse handling with sub-1 ns response, reducing let-through energy to downstream DC/DC converters and FPGAs by >85 % vs. unclamped operation. |
Use Scenario: Protecting AC/DC adapter outputs and internal 12 V/24 V distribution rails in washing machines, HVAC controllers, and smart home hubs. IC Role / Device Role / Timing Role: Secondary surge suppressor located after primary fuse and common-mode choke, targeting fast ESD and relay-switching spikes. Use Value: Maintains system uptime by preventing reset faults and EEPROM corruption during 8 kV contact ESD events per IEC 61000-4-2, with no degradation after 1000+ strikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package | No difference in circuit function or layout; selected where halogen-free compliance is mandated | Choose when environmental compliance requires halogen-free materials without altering design or qualification |
| SMAJ110CA-E3/52 | Lower 400 W PPPM, SMA (DO-214AC) package, 20 % smaller footprint, 185 V VC @ 2.6 A | Reduced surge margin; suitable only for lower-energy threats or space-constrained layouts | Select only if board area is critical and surge threat level is limited to IEC 61000-4-4 Level 3 (1 kV) |
Compared with SMBJ110CA-E3/5B, the M3/5B variant offers identical protection performance with halogen-free construction, while the SMAJ110CA-E3/52 trades 33 % lower pulse power and higher clamping for 25 % smaller PCB area - making the SMBJ110CA-E3/5B optimal for full IEC 61000-4-5 compliance in industrial and automotive power domains.
Availability
SMBJ110CA-E3/5B is available at Aetrix Electronics and suitable for industrial motor control I/O protection, automotive BCM power rails, telecom RRU DC feeds, and consumer appliance mainboard power inputs requiring stable component supply and full traceability.
Supply support for SMBJ110CA-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, power efficiency, and AEC-Q qualification.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against load dump, ESD, and lightning surges is non-negotiable.
FAQ
What is the maximum clamping voltage of SMBJ110CA-E3/5B under standard test conditions?
The SMBJ110CA-E3/5B 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 ANSI/IEEE C62.35 and guarantees that downstream components see no more than 177 V during surge events - critical for protecting 200 V-rated capacitors and 150 V MOSFETs. The SMBJ110CA-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBJ110CA-E3/5B suitable for automotive applications?
SMBJ110CA-E3/5B is a commercial-grade part and not AEC-Q101 qualified; however, it shares identical electrical and mechanical specifications with the AEC-Q101-qualified variant SMBJ110CAHE3_B/I. Engineers may use SMBJ110CA-E3/5B in non-safety-critical automotive subsystems (e.g., infotainment power rails) where qualification is not mandated, but must validate thermal and lifetime performance per vehicle-specific requirements. The SMBJ110CA-E3/5B remains fully compatible with automotive PCB assembly processes including lead-free reflow.
How does the bidirectional nature of SMBJ110CA-E3/5B affect its placement in circuit design?
Because SMBJ110CA-E3/5B is bidirectional, it has no polarity marking and functions identically regardless of orientation across the protected line - simplifying layout and eliminating risk of reverse installation. It conducts during both positive and negative transients, making it ideal for AC-coupled signal lines, differential buses like RS-485, and floating DC rails. Unlike unidirectional TVS diodes, the SMBJ110CA-E3/5B does not require a ground reference on one terminal, enabling direct line-to-line protection without additional biasing.
What is the thermal resistance of SMBJ110CA-E3/5B, and how does it impact PCB layout?
The SMBJ110CA-E3/5B 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 means sustained 5.0 W power dissipation raises junction temperature by ~500 °C above ambient - far exceeding its 150 °C limit. Therefore, the SMBJ110CA-E3/5B is intended for transient-only operation; PCB layout must prioritize short, wide traces and thermal relief minimization to ensure rapid heat dissipation during pulse events, not steady-state conduction.
Does SMBJ110CA-E3/5B meet UL recognition standards?
Yes, SMBJ110CA-E3/5B is Underwriters Laboratories (UL) recognized under file number E136766 for both unidirectional and bidirectional configurations, complying with UL 497B for signal and power circuit protectors. Its UL recognition covers flammability (UL 94 V-0), dielectric strength, and surge endurance - confirming suitability for end-equipment certification in North America. This UL listing applies specifically to the SMBJ110CA-E3/5B and is documented in Vishay's QVGQ2 classification report.
SMBJ110CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ110CA-E3/5B FAQ
1.How can I place an order for SMBJ110CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CA-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 SMBJ110CA-E3/5B reliable?
The price and inventory of SMBJ110CA-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 SMBJ110CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ110CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CA-E3/5B?
SMBJ110CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CA-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 SMBJ110CA-E3/5B?
For technical support, including SMBJ110CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CA-E3/5B requirements.
6.How does Aetrix verify that SMBJ110CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ110CA-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 SMBJ110CA-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ110CA-E3/5B?
All SMBJ110CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CA-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 SMBJ110CA-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ110CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CA-E3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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