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Vishay General Semiconductor - Diodes Division SMBJ110CA-E3/52
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- Part No.:
- SMBJ110CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CA-E3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,065
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Product details
Overview
SMBJ110CA-E3/52 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 power and signal lines. It features a 110 V standoff voltage (VWM), 122–135 V breakdown range (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-E3/52 datasheet, SMBJ110CA-E3/52 pinout, SMBJ110CA-E3/52 application, or SMBJ110CA-E3/52 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), JEDEC-compliant SMB package dimensions, and AEC-Q101-qualified alternatives for automotive-grade designs.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VC, and IPPM specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), enabling protection of high-speed analog and digital signal paths without signal distortion.
The device complies with ANSI/IEEE C62.35 surge standards and meets MSL Level 1 per J-STD-020 (peak reflow 260 °C). Its low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.45) minimize let-through energy during transient events, critical for safeguarding sensitive gate oxides and precision references.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin for 100 V nominal DC bus or AC line applications. |
| VBR (min/max) | 122 V / 135 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering above system overvoltage thresholds while avoiding false trips. |
| VC @ IPPM | 177 V at 3.4 A - Clamped voltage under 600 W 10/1000 µs surge; limits stress on downstream components to ≤177 V during worst-case transients. |
| PPPM | 600 W - Peak pulse power handling capability; supports repetitive surge events at 0.01% duty cycle without degradation. |
| IPPM | 3.4 A - Peak pulse current derived from 600 W / 177 V; determines minimum PCB trace width and layout thermal design for surge path. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient for sustained power dissipation. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in industrial enclosures up to +85 °C ambient with appropriate thermal margin. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals. Molding compound meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance surge shunt to ground or rail in either polarity; connects to protected line (e.g., CAN_H, RS-485 A). |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; forms symmetrical clamping node - no cathode band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24–48 V industrial buses without derating. |
| Bidirectional clamping symmetry | Eliminates need for polarity-aware layout; supports AC-coupled lines (e.g., Ethernet PHY, audio differential pairs) with single-device placement. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes let-through voltage overshoot - critical for protecting 120 V-rated MOSFETs and isolated gate drivers in motor control inverters. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard SMT reflow without baking; reduces manufacturing overhead in high-volume consumer electronics assembly. |
| AEC-Q101 qualification option | Validated for automotive powertrain and body electronics; HE3 suffix variants support under-hood temperature cycling and vibration requirements. |
Applications
| Industrial PLC I/O Protection | Automotive Sensor Interface |
|---|---|
|
Use Scenario: 24 V DC input modules exposed to relay coil flyback and field wiring ESD in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector entry point to clamp ±1 kV EFT bursts and ±2 kV contact discharge per IEC 61000-4-4/-2. Use Value: Limits transient voltage to ≤177 V, preventing damage to upstream optocouplers and MCU GPIOs rated for 3.3 V or 5 V logic levels. |
Use Scenario: LIN bus transceivers and pressure sensors in engine bay environments subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp on LIN data line (VCC-referenced), absorbing negative spikes down to −135 V and positive surges up to +135 V. Use Value: Maintains signal integrity during 100 V/50 ms load dump events by clamping within 1 ns, avoiding transceiver latch-up or reset. |
| Telecom Power Supply Input | Consumer Appliance Motor Control |
|
Use Scenario: Secondary-side 48 V DC distribution in PoE-powered switches and base stations, vulnerable to lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Secondary-stage TVS on 48 V rail feeding PMICs and Ethernet PHYs, coordinated with primary MOV and gas discharge tube. Use Value: Provides <1 ns response to divert >3 A surge current away from 50 V-rated DC-DC converters, preserving output regulation during transient recovery. |
Use Scenario: Brushless DC motor driver boards in washing machines and HVAC systems, where PWM switching induces 100–200 V inductive spikes on low-side FET sources. IC Role / Device Role / Timing Role: Clamp diode across motor phase outputs to suppress VDS overshoot during FET turn-off, reducing EMI and gate oxide stress. Use Value: Limits drain-source voltage to 177 V, enabling use of cost-optimized 200 V MOSFETs instead of 250 V parts without reliability risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA-M3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and SMB package; same thermal resistance and clamping performance. | No functional difference; selected when halogen-free compliance is mandated for EU medical or aerospace programs. | Direct material substitution where halogen content must be zero - no layout or test changes required. |
| SMBJ110CAHE3_B/I | AEC-Q101 qualified version with extended temperature validation (−55 °C to +150 °C), same VWM/VC/PPPM ratings. | Required for automotive powertrain, chassis, and ADAS modules; validated for 1000+ thermal cycles and mechanical shock. | Choose when automotive qualification is mandatory; otherwise, standard E3 suffices for industrial/commercial use. |
Compared with SMBJ110CA-E3/52, the M3 variant adds halogen-free compliance without altering surge performance, while the HE3 variant adds AEC-Q101 validation for automotive deployment - both retain identical pinout, footprint, and clamping behavior, enabling drop-in replacement where qualification or material requirements differ.
Availability
SMBJ110CA-E3/52 is available at Aetrix Electronics and suitable for industrial PLC I/O protection, automotive sensor interface circuits, telecom power supply inputs, and consumer appliance motor control requiring stable component supply across production lifecycles.
Supply support for SMBJ110CA-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, rectifiers, TVS devices, and power MOSFETs with emphasis on reliability, surge robustness, and automotive qualification.
The SMBJ series was engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting industrial automation, automotive electronics, and telecom infrastructure where consistent clamping and long-term stability are critical.
FAQ
What is the standoff voltage rating of SMBJ110CA-E3/52?
The SMBJ110CA-E3/52 has a maximum reverse standoff voltage (VWM) of 110 V. This means it remains non-conductive up to 110 V DC or RMS AC, providing a safe operating margin below its 122–135 V breakdown range. The value is confirmed in Vishay's datasheet Document Number 88392, Table "ELECTRICAL CHARACTERISTICS", row for SMBJ110A/CA.
Is SMBJ110CA-E3/52 unidirectional or bidirectional?
SMBJ110CA-E3/52 is a bidirectional TVS diode, indicated by the "CA" suffix per Vishay's naming convention. It clamps transients equally in both polarities - no cathode band marking is present, and electrical characteristics (VBR, VC, IPPM) apply identically in forward and reverse directions, as specified in the "DEVICES FOR BIDIRECTION APPLICATIONS" section of the datasheet.
What package does SMBJ110CA-E3/52 use, and is it RoHS-compliant?
SMBJ110CA-E3/52 uses the SMB (DO-214AA) surface-mount package, with dimensions 4.57 mm × 3.94 mm × 2.20 mm. The "E3" suffix confirms it is RoHS-compliant and commercial-grade, per Vishay's ordering information table. Lead finish is matte tin, solderable per J-STD-002, and moisture sensitivity level is MSL Level 1.
What is the maximum clamping voltage for SMBJ110CA-E3/52 under surge conditions?
The maximum clamping voltage (VC) for SMBJ110CA-E3/52 is 177 V at 3.4 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures downstream components see no more than 177 V during standardized surge events, as documented in the "ELECTRICAL CHARACTERISTICS" table for SMBJ110A/CA.
Does SMBJ110CA-E3/52 meet automotive qualification standards?
The standard SMBJ110CA-E3/52 is not AEC-Q101 qualified; however, Vishay offers the pin-compatible SMBJ110CAHE3_B/I variant which is fully AEC-Q101 qualified for automotive applications. The HE3 suffix denotes RoHS compliance plus qualification to AEC-Q101, including temperature cycling, mechanical shock, and humidity testing - details are in the "MECHANICAL DATA" and "ORDERING INFORMATION" sections of the datasheet.
SMBJ110CA-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:
- -
- 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-E3/52 FAQ
1.How can I place an order for SMBJ110CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CA-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 SMBJ110CA-E3/52 reliable?
The price and inventory of SMBJ110CA-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 SMBJ110CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ110CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CA-E3/52?
SMBJ110CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CA-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 SMBJ110CA-E3/52?
For technical support, including SMBJ110CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CA-E3/52 requirements.
6.How does Aetrix verify that SMBJ110CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ110CA-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 SMBJ110CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ110CA-E3/52?
All SMBJ110CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CA-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 SMBJ110CA-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ110CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CA-E3/52 Tags
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