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Vishay General Semiconductor - Diodes Division SMBJ110C-E3/5B
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- Part No.:
- SMBJ110C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110C-E3/5B.pdf
- Description:
- TVS DIODE 110VWM 196VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,476
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Product details
Overview
SMBJ110C-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 110 V stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 177 A peak pulse current (IPPM) under 10/1000 µs waveform, and clamps transients to ≤177 V at rated surge. It is deployed on power rails and signal lines in industrial motor drives to protect MOSFET gate drivers from inductive switching spikes.
For engineers reviewing the SMBJ110C-E3/5B datasheet, SMBJ110C-E3/5B pinout, SMBJ110C-E3/5B application, or SMBJ110C-E3/5B equivalent, key selection criteria include clamping voltage vs. protected device's absolute maximum rating, thermal resistance (RθJA = 100 °C/W), unidirectional polarity marking, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltages exceeding its reverse stand-off voltage (110 V). Its silicon avalanche junction responds in <1 ps to suppress ESD, lightning-induced surges, and inductive kickback while maintaining low leakage (<1.0 µA at VWM). The device sustains 600 W peak pulse power (10/1000 µs) and handles 100 A non-repetitive forward surge (8.3 ms half-sine).
Thermally, it relies on PCB copper pad area for heat dissipation-rated RθJA = 100 °C/W assumes 0.2" × 0.2" (5.0 mm × 5.0 mm) pads per terminal. Its glass-passivated chip junction and MSL Level 1 moisture sensitivity enable lead-free reflow up to 260 °C without popcorn effect.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for normal circuit operation. |
| VBR min/max | 122 V / 135 V at IT = 1 mA - Confirmed breakdown range ensures reliable triggering above VWM with margin against tolerance drift. |
| VC @ IPPM | ≤177 V at 177 A (10/1000 µs) - Clamping voltage defines worst-case stress imposed on downstream ICs during surge events. |
| PPPM | 600 W - Peak pulse power handling capacity determines survivability against standardized lightning/surge waveforms. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms) supports protection of power-stage components during fault conditions. |
| RθJA | 100 °C/W - Thermal resistance value used to calculate junction temperature rise under sustained power dissipation (e.g., 5.0 W PD). |
| Leakage ID | ≤1.0 µA at 110 V - Low reverse leakage minimizes standby power loss and avoids false triggering in high-impedance circuits. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when Vreverse > VBR. |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 Level 3 (1 kV surge) on 24 V/48 V industrial bus lines with appropriate series impedance. |
| Clamping ratio VC/VBR ≈ 1.39 | Indicates efficient avalanche energy absorption-lower ratio reduces stress on downstream MOSFETs or controllers. |
| MSL Level 1, peak reflow 260 °C | Supports single-pass lead-free reflow without preconditioning or baking, reducing manufacturing complexity and cost. |
| RoHS-compliant, halogen-free option available | Meets EU RoHS Directive 2011/65/EU and JEDEC J-STD-20E requirements for environmentally constrained applications. |
| 100 A IFSM (8.3 ms) | Provides margin for short-circuit protection in DC motor drive outputs where back-EMF and stall currents coexist. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate driver ICs and bootstrap FETs against inductive voltage spikes during IGBT/MOSFET switching in servo amplifiers. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between gate driver output and power FET source, activated within picoseconds of overvoltage onset. Use Value: Limits gate-source voltage to ≤177 V, preventing oxide breakdown in 200 V-rated gate drivers while sustaining repeated 600 W surges. |
Use Scenario: Input-stage surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced transients on central office distribution lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input rail upstream of DC/DC converters and PMICs. Use Value: Clamps 10/1000 µs surges to ≤177 V while maintaining <1.0 µA leakage at nominal -48 V, avoiding false trips in low-power monitoring circuits. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins from load-dump and jump-start transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and chassis ground, referenced to battery potential. Use Value: Withstands ISO 16750-2 Pulse 5a (load dump, 35 V/400 ms) via thermal mass and clamps fast spikes (ISO 7637-2 Pulse 1/2) to safe levels for 3.3 V logic interfaces. |
Use Scenario: Shielding analog front-end op-amps and ADC inputs in factory-floor pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF) unidirectional clamp on differential sensor lines (e.g., 4–20 mA loop or RS-485). Use Value: Adds <1.0 µA leakage at 110 V bias but introduces negligible signal distortion-critical for sub-mV-level precision measurements. |
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 | Identical electrical specs and package; differs only in part suffix convention-"A" denotes unidirectional, "C" is legacy alternate marking for same device. | No functional difference; both rated for same VWM, VBR, and IPPM. Used interchangeably in Vishay's ordering matrix. | Select SMBJ110C-E3/5B when matching legacy BOMs referencing "C" suffix; otherwise SMBJ110A-E3/5B is functionally identical and more commonly stocked. |
| SMCJ110A-E3/57T | Same VWM/VBR but in larger SMC (DO-214AB) package; higher PPPM = 1500 W, lower RθJA = 40 °C/W, and IPPM = 442 A. | Better suited for high-energy surges (e.g., outdoor AC mains interfaces); requires larger PCB footprint and different pad layout. | Choose SMCJ110A-E3/57T only when 600 W is insufficient and board space allows SMC footprint; SMBJ110C-E3/5B remains optimal for space-constrained 24–48 V DC systems. |
Compared with SMBJ110A-E3/5B, SMBJ110C-E3/5B offers identical protection performance in the same SMB package, while SMCJ110A-E3/57T delivers 2.5× higher surge capacity at the cost of 2.5× larger board area-making SMBJ110C-E3/5B the preferred choice for compact industrial and telecom DC power rails.
Availability
SMBJ110C-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply, RoHS compliance, and AEC-Q101-qualified alternatives.
Supply support for SMBJ110C-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 automotive qualification.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments-targeting industrial automation, telecom infrastructure, and automotive electronics where robustness against ESD, lightning, and inductive switching is critical.
FAQ
What is the clamping voltage of SMBJ110C-E3/5B at its rated peak pulse current?
The SMBJ110C-E3/5B clamps to a maximum of 177 V when subjected to its rated 177 A peak pulse current (10/1000 µs waveform). This value is measured per IEC 61000-4-5 test conditions and defines the upper voltage stress imposed on protected circuitry during surge events. The clamping voltage is guaranteed across temperature and lifetime, ensuring consistent protection behavior in SMBJ110C-E3/5B deployments.
Is SMBJ110C-E3/5B suitable for bidirectional signal line protection?
No, SMBJ110C-E3/5B is a unidirectional TVS diode-its cathode band indicates polarity, and it conducts only in reverse breakdown. For bidirectional protection (e.g., RS-485, USB, or AC lines), use the CA-suffixed variant SMBJ110CA-E3/5B. Using SMBJ110C-E3/5B on bidirectional signals risks forward conduction and failure during negative transients. Always verify polarity alignment in the schematic before placing SMBJ110C-E3/5B.
What is the maximum printed circuit board copper pad size recommended for SMBJ110C-E3/5B thermal performance?
Vishay specifies thermal ratings for SMBJ110C-E3/5B assuming 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. Larger pads improve heat dissipation but do not change the rated RθJA = 100 °C/W unless validated per JEDEC standards. Exceeding this pad size may reduce thermal resistance slightly, but SMBJ110C-E3/5B's 5.0 W power dissipation limit remains governed by ambient temperature and airflow-not pad area alone.
Does SMBJ110C-E3/5B meet AEC-Q101 for automotive use?
The base SMBJ110C-E3/5B is commercial-grade and RoHS-compliant but not AEC-Q101 qualified. For automotive applications, Vishay offers the AEC-Q101-qualified variant SMBJ110CHE3_B/I (with HE3 suffix), which undergoes additional stress testing including temperature cycling, HTRB, and ESD. SMBJ110C-E3/5B may be used in non-safety-critical automotive subsystems only after full system-level validation-but SMBJ110CHE3_B/I is required for certified designs.
How does the leakage current of SMBJ110C-E3/5B affect low-power sensor circuits?
SMBJ110C-E3/5B exhibits ≤1.0 µA reverse leakage at its 110 V stand-off voltage, making it suitable for high-impedance sensor nodes where leakage could shift bias points or increase quiescent current. In 3.3 V or 5 V analog signal paths, this leakage is negligible-less than typical op-amp input bias currents. However, in ultra-low-power IoT sensors drawing <10 µA sleep current, parallel placement of SMBJ110C-E3/5B must account for cumulative leakage across multiple protection devices in the BOM.
SMBJ110C-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBJ110C-E3/5B FAQ
1.How can I place an order for SMBJ110C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110C-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 SMBJ110C-E3/5B reliable?
The price and inventory of SMBJ110C-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 SMBJ110C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ110C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110C-E3/5B?
SMBJ110C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110C-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 SMBJ110C-E3/5B?
For technical support, including SMBJ110C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110C-E3/5B requirements.
6.How does Aetrix verify that SMBJ110C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ110C-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 SMBJ110C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ110C-E3/5B?
All SMBJ110C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110C-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 SMBJ110C-E3/5B part is unused and in its original packaging.
Return procedure for SMBJ110C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110C-E3/5B Tags
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