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Vishay General Semiconductor - Diodes Division SMBJ110CA-M3/52
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- Part No.:
- SMBJ110CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CA-M3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,194
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Product details
Overview
SMBJ110CA-M3/52 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 signal or power 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 (10/1000 µs waveform), used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the SMBJ110CA-M3/52 datasheet, SMBJ110CA-M3/52 pinout, SMBJ110CA-M3/52 application, or SMBJ110CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, 177 V clamping voltage at rated surge current, halogen-free RoHS-compliant construction (M3 suffix), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both directions, enabling transient suppression on AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while the 100 °C/W junction-to-ambient thermal resistance requires careful PCB pad design for sustained power dissipation.
The SMBJ110CA-M3/52 delivers 600 W peak pulse power under standardized 10/1000 µs waveform conditions, with derating above 25 °C per Figure 2. It exhibits a temperature coefficient of VBR of +0.107 %/°C and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 110 V nominal systems. |
| VBR (min/max) | 122 V / 135 V at 1 mA - Verified breakdown threshold range; ensures reliable triggering across process variation and temperature. |
| VC @ IPPM | 177 V at 3.4 A - Clamped voltage during 10/1000 µs surge; limits downstream stress on protected 100–120 V logic or gate drivers. |
| PPPM | 600 W - Peak transient energy handling capacity; supports repetitive surges up to 0.01 % duty cycle with proper thermal management. |
| IPPM | 3.4 A - Peak surge current corresponding to VC; determines minimum trace width and pad area needed for 5.0 mm × 5.0 mm copper layout. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in high-ambient environments such as industrial motor drives or telecom rectifiers. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 2.20 mm min. cathode/anode lead spacing; compatible with JEDEC MS-012AC footprint. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Accepts surge current from either direction; connects to line under protection (e.g., DC bus or differential signal pair). |
| Cathode | Transient current exit (bidirectional) | Completes clamping path to ground or return rail; symmetric with anode-no functional distinction in CA devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled, floating, or differential lines (e.g., RS-485, CAN, Ethernet PHY) without polarity constraints. |
| 600 W peak pulse power (10/1000 µs) | Handles common lightning-induced or inductive-switching transients in industrial power rails and motor control feedback loops. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial OEMs without compromising surge robustness. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling; reduces manufacturing complexity. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), improving protection margin for sensitive gate drivers. |
Applications
| Industrial Motor Drives | Telecom Power Rectifiers |
|---|---|
|
Use Scenario: Protection of IGBT gate driver inputs against voltage spikes induced by transformer leakage inductance during switching. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between gate and source terminals to limit transient overvoltage to <177 V. Use Value: Prevents gate oxide rupture in 1200 V IGBTs by clamping spikes within safe VGE rating, extending system reliability in variable-frequency drives. |
Use Scenario: Surge suppression on +48 V DC output of telecom rectifier modules exposed to load-dump or hot-swap events. IC Role / Device Role / Timing Role: Parallel-connected TVS across output rail to clamp transients exceeding 110 V standoff before they reach downstream DC/DC converters. Use Value: Maintains uninterrupted power delivery by limiting rail excursions to ≤177 V, avoiding brownout or latch-up in 48 V backplane systems. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protection of LIN bus transceivers connected to external harnesses subject to ISO 7637-2 Pulse 1 and Pulse 2a transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across LIN data line and ground to suppress negative and positive-going spikes. Use Value: Ensures communication integrity under harsh automotive electrical environments, meeting AEC-Q101 qualification when using HM3 variants. |
Use Scenario: Guarding analog outputs of 4–20 mA current-loop transmitters against ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS (typ. <100 pF at 0 V) shunted across output terminals to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Preserves 12-bit DAC accuracy by preventing latch-up or parametric shift in op-amp output stages during field maintenance. |
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-E3/52 | RoHS-compliant but not halogen-free; same electrical specs and SMB package. | Preferred for commercial-grade applications where halogen content is unrestricted. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not mandated. |
| SMBJ110CAHM3_B/I | AEC-Q101 qualified, halogen-free, supplied in 13" tape-and-reel (3200 pcs); identical clamping and thermal performance. | Required for automotive body electronics or safety-critical industrial controllers needing automotive qualification. | Choose for Tier-1 automotive BOMs or long-lifecycle programs requiring extended availability and qualification traceability. |
Compared with SMBJ110CA-M3/52, the E3 variant offers lower unit cost for non-automotive use, while the HM3_B/I variant adds AEC-Q101 validation and larger reel packaging-enabling direct substitution in qualified designs without layout or thermal redesign.
Availability
SMBJ110CA-M3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom rectifiers, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and halogen-free compliance.
Supply support for SMBJ110CA-M3/52 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and application-specific optimization.
The SMBJ series is engineered for robust transient suppression in harsh environments-targeting industrial automation, telecom infrastructure, and automotive subsystems where high-energy surge immunity and long-term stability are critical.
FAQ
What is the maximum clamping voltage of SMBJ110CA-M3/52 under standard test conditions?
The SMBJ110CA-M3/52 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 confirmed in Vishay's Document Number 88392, ensuring predictable voltage limiting during surge events without exceeding downstream component ratings.
Is SMBJ110CA-M3/52 suitable for automotive applications?
The SMBJ110CA-M3/52 itself is commercial-grade and halogen-free but not AEC-Q101 qualified. For automotive use, Vishay offers the SMBJ110CAHM3_B/I variant, which shares identical electrical specs and SMB package but adds AEC-Q101 qualification and extended temperature validation. Engineers must specify the HM3 suffix for automotive body control or infotainment systems.
How does the bidirectional nature of SMBJ110CA-M3/52 affect its PCB layout?
Because SMBJ110CA-M3/52 is bidirectional, it has no polarity marking and can be mounted in either orientation across the protected line and ground. Layout requires symmetric 5.0 mm × 5.0 mm copper pads per terminal to maintain rated 600 W pulse power handling and thermal performance-no cathode/anode routing distinction is needed.
What is the standoff voltage (VWM) of SMBJ110CA-M3/52, and why does it matter?
The standoff voltage (VWM) of SMBJ110CA-M3/52 is 110 V, meaning it remains in high-impedance state below this voltage and does not interfere with normal circuit operation. This value ensures compatibility with 100–110 V nominal DC systems (e.g., telecom -48 V with ripple, industrial 110 V control rails), preventing false triggering while maintaining sufficient margin above operating voltage.
Does SMBJ110CA-M3/52 require derating at elevated ambient temperatures?
Yes-SMBJ110CA-M3/52 must be derated above 25 °C ambient per Figure 2 in Vishay's Document 88392. At 75 °C, its peak pulse power drops to ~400 W, and at 125 °C, it falls to ~200 W. Designers must adjust expected surge capability based on actual board temperature and ensure junction temperature stays ≤150 °C using appropriate copper area and airflow.
SMBJ110CA-M3/52 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-M3/52 FAQ
1.How can I place an order for SMBJ110CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CA-M3/52 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-M3/52 reliable?
The price and inventory of SMBJ110CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ110CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CA-M3/52?
SMBJ110CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CA-M3/52 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-M3/52?
For technical support, including SMBJ110CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CA-M3/52 requirements.
6.How does Aetrix verify that SMBJ110CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ110CA-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ110CA-M3/52?
All SMBJ110CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CA-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMBJ110CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CA-M3/52 Tags
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