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Vishay General Semiconductor - Diodes Division SMBJ110-E3/5B
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- Part No.:
- SMBJ110-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110-E3/5B.pdf
- Description:
- TVS DIODE 110VWM 196VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,938
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Product details
Overview
SMBJ110-E3/5B 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.
For engineers reviewing the SMBJ110-E3/5B datasheet, SMBJ110-E3/5B pinout, SMBJ110-E3/5B application, or SMBJ110-E3/5B equivalent, key selection criteria include unidirectional polarity, 110 V working voltage, 177 V clamping performance under surge, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device, conducting only when reverse voltage exceeds its breakdown threshold (122–135 V), thereby shunting transient energy to ground. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for safeguarding sensitive downstream components against inductive switching spikes and ESD events.
The SMBJ110-E3/5B is rated for 150 °C maximum junction temperature and exhibits a thermal resistance of 100 °C/W (junction-to-ambient) on standard PCB pads. Its 100 A IFSM rating supports robust handling of 8.3 ms half-sine surge pulses, making it suitable for non-repetitive overvoltage events in DC power rails and low-frequency signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 110 V nominal DC systems. |
| VBR (min/max) | 122 V / 135 V at 1 mA - Verified breakdown range ensures reliable triggering without premature conduction under normal operation. |
| VC @ IPPM | 177 V at 3.4 A - Clamped voltage during 10/1000 µs surge limits stress on protected ICs or MOSFETs to safe levels. |
| PPPM | 600 W - Peak pulse power dissipation capability with 0.01% duty cycle; sufficient for lightning-induced surges per IEC 61000-4-5. |
| IFSM | 100 A - Peak forward surge current rating for 8.3 ms half-sine wave; validates robustness against repetitive inrush or fault currents. |
| TJ max. | 150 °C - Maximum junction temperature enables reliable operation in enclosed industrial enclosures or high-ambient environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with cathode band marking; compatible with J-STD-020 MSL Level 1 reflow profile (260 °C peak). |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to system ground or low-side reference; completes clamping path during overvoltage events. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., +110 V rail); conducts when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables suppression of high-energy transients common in industrial motor drives and power supply inputs without thermal runaway. |
| Glass passivated chip junction | Ensures long-term stability of VBR and low leakage (<1.0 µA), critical for battery-backed or low-power sensor circuits. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing at 260 °C peak, eliminating bake requirements for high-volume SMT assembly. |
| RoHS-compliant, matte tin plating | Guarantees solder joint reliability and compatibility with lead-free reflow profiles across global manufacturing sites. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V or 5 V logic interfaces downstream. |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
|
Use Scenario: Protects 110 V DC input stage of programmable logic controllers (PLCs) against load dump and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse transients to ≤177 V, preventing damage to upstream rectifiers and downstream DC-DC converters. Use Value: Maintains system uptime by absorbing 600 W surges without degradation, validated per IEC 61000-4-5 Level 4 test conditions. |
Use Scenario: Shields 12 V–110 V auxiliary power distribution networks in BCMs from alternator load dump spikes during battery disconnection. IC Role / Device Role / Timing Role: Acts as primary overvoltage clamp on fused B+ feed, responding within <1 ns to limit bus voltage excursion during 100 ms transients. Use Value: Complies with ISO 7637-2 Pulse 5a requirements while supporting AEC-Q101-qualified variants via HE3 suffix options. |
| Telecom Line Card Surge Protection | Industrial Sensor Signal Conditioning Interface |
|
Use Scenario: Installed on -48 V DC telecom power feeds to guard backplane regulators and hot-swap controllers against lightning-induced surges. IC Role / Device Role / Timing Role: Provides coarse overvoltage protection ahead of polymeric PTCs and secondary TVS arrays, handling bulk energy before downstream devices activate. Use Value: Delivers 177 V clamping at 3.4 A with <0.01% duty cycle tolerance, enabling staged protection architecture without derating concerns. |
Use Scenario: Mounted across analog input pins of 4–20 mA transmitter ICs exposed to field wiring in factory automation systems. IC Role / Device Role / Timing Role: Limits transient voltage to ≤177 V on signal lines referenced to local ground, preserving ADC accuracy and isolator integrity. Use Value: Low 1.0 µA leakage at 110 V ensures minimal offset error in precision current-loop receivers over full temperature range. |
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-M3/5B | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package. | No functional difference; selected where halogen-free compliance is mandated by OEM environmental policy. | Direct drop-in replacement for SMBJ110-E3/5B where halogen-free materials are required. |
| SMBJ110AHM3_B/I | AEC-Q101 qualified, halogen-free, RoHS-compliant; same VWM, VBR, VC, and PPPM; differs only in qualification status and reel packaging (3200 pcs/reel, 13″ tape). | Required for automotive-grade designs needing AEC-Q101 validation; not intended for commercial-only applications. | Choose when automotive qualification and halogen-free compliance are both mandatory; otherwise, SMBJ110-E3/5B suffices for industrial use. |
Compared with SMBJ110-E3/5B, the M3/5B variant adds halogen-free compliance without altering electrical behavior, while the HM3_B/I version extends qualification to AEC-Q101 - enabling use in automotive body electronics but requiring verification of full system-level qualification scope.
Availability
SMBJ110-E3/5B is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom line card surge suppression, and sensor interface hardening requiring stable component supply and consistent RoHS-compliant manufacturing.
Supply support for SMBJ110-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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The SMBJ series was developed for robust transient suppression in harsh environments - targeting industrial, telecom, and automotive applications where high pulse power, stable clamping, and long-term parametric stability are essential.
FAQ
What is the maximum clamping voltage of SMBJ110-E3/5B under surge conditions?
The SMBJ110-E3/5B has a maximum clamping voltage (VC) of 177 V at 3.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SMBJ110-E3/5B suitable for automotive applications?
SMBJ110-E3/5B is a commercial-grade, RoHS-compliant part and is not AEC-Q101 qualified. For automotive use, the SMBJ110AHM3_B/I variant - which carries AEC-Q101 qualification, halogen-free construction, and identical electrical specs - must be selected instead. SMBJ110-E3/5B remains appropriate for industrial and telecom applications where automotive qualification is not required.
What does the "E3/5B" suffix indicate in SMBJ110-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, containing 3200 units per reel. This format supports high-speed pick-and-place assembly and aligns with J-STD-020 MSL Level 1 handling requirements without baking.
How does SMBJ110-E3/5B compare to bidirectional TVS diodes like SMBJ110CA?
SMBJ110-E3/5B is unidirectional and intended for DC line protection with defined polarity (cathode marked), whereas SMBJ110CA is bidirectional and used in AC-coupled or floating signal paths. The SMBJ110-E3/5B offers lower leakage and higher surge current capability in DC configurations, but cannot replace SMBJ110CA in symmetric transient environments without circuit redesign.
What PCB pad layout is recommended for optimal thermal performance of SMBJ110-E3/5B?
Vishay specifies mounting SMBJ110-E3/5B on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and 100 °C/W thermal resistance. Reducing pad area degrades surge capability and increases junction temperature - verified in Figure 2 of the datasheet - so adherence to this layout is essential for full specification compliance.
SMBJ110-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 110V
- Voltage - Breakdown (Min):
- 122V
- Voltage - Clamping (Max) @ Ipp:
- 196V
- Current - Peak Pulse (10/1000µs):
- 3.1A
- 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)
SMBJ110-E3/5B FAQ
1.How can I place an order for SMBJ110-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110-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 SMBJ110-E3/5B reliable?
The price and inventory of SMBJ110-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 SMBJ110-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ110-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110-E3/5B?
SMBJ110-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110-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 SMBJ110-E3/5B?
For technical support, including SMBJ110-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110-E3/5B requirements.
6.How does Aetrix verify that SMBJ110-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ110-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 SMBJ110-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ110-E3/5B?
All SMBJ110-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110-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 SMBJ110-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ110-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110-E3/5B Tags
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