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Vishay General Semiconductor - Diodes Division SMBJ110CAHE3_B/I
- Part No.:
- SMBJ110CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CAHE3_B/I.pdf
- Description:
- 600W,110V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,516
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Product details
Overview
SMBJ110CAHE3_B/I 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 110 V standoff voltage (VWM), 122–135 V breakdown range (VBR), 177 V maximum clamping voltage (VC) at 3.4 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ110CAHE3_B/I datasheet, SMBJ110CAHE3_B/I pinout, SMBJ110CAHE3_B/I application, or SMBJ110CAHE3_B/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping behavior under surge, and real-world protection use cases - all confirmed from Vishay's official 88392 document (Rev. 09-Jan-2024).
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling transient suppression without polarity sensitivity. 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 copper pad design (0.2" × 0.2") for sustained 5.0 W power dissipation.
The device meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports automated placement, and is qualified to AEC-Q101 for automotive-grade reliability. Its 177 V clamping voltage at 3.4 A IPPM provides predictable overvoltage limiting during lightning-induced surges or inductive switching events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 110 V - Maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 122–135 V at 1.0 mA - Confirmed bidirectional breakdown range; ensures reliable triggering during transients. |
| VC (Clamping Voltage) | 177 V at IPPM = 3.4 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy-handling capability per IEEE C62.35 10/1000 μs waveform; enables robust surge immunity. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Minimal standby current; avoids unnecessary power loss or false triggering in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in enclosed industrial enclosures or under load. |
| RθJA | 100 °C/W - Thermal resistance requiring ≥5.0 mm × 5.0 mm copper pads per terminal for safe 5.0 W dissipation at TA = 50 °C. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; either end serves as anode or cathode depending on transient polarity - enables single-device protection of AC or floating DC lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients from inductive load switching or lightning-induced surges without failure. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics including engine control units and body modules where reliability under thermal cycling is critical. |
| MSL Level 1 moisture sensitivity | Allows standard SMT reflow without baking; compatible with high-volume automated assembly lines. |
| Glass passivated junction | Ensures stable VBR over time and temperature, minimizing parameter drift in long-life industrial deployments. |
| Low incremental surge resistance | Contributes to tight clamping performance (VC/VBR ratio ≈ 1.45), reducing voltage overshoot during fast transients. |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Suppression |
|---|---|
|
Use Scenario: Protecting 48 V DC input rails in programmable logic controller (PLC) power modules against load dump and relay bounce. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient spikes before they reach DC-DC controllers and microcontrollers. Use Value: Prevents latch-up or gate oxide damage in downstream MOSFETs and PMICs by limiting voltage to ≤177 V during 3.4 A surges. |
Use Scenario: Shielding Ethernet PHY interface lines (e.g., RJ45 magnetics secondary side) from ESD and lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed differential-to-ground to absorb coupled transients without distorting 100BASE-TX signaling. Use Value: Maintains signal integrity up to 100 MHz while meeting IEC 61000-4-5 Level 3 (1 kV surge) requirements. |
| Automotive Body Control Module (BCM) | Sensor Signal Line Protection |
|
Use Scenario: Safeguarding LIN bus transceivers and LED driver ICs in door module assemblies exposed to battery voltage transients. IC Role / Device Role / Timing Role: AEC-Q101-qualified bidirectional suppressor absorbing ±100 V/500 ms load dump pulses per ISO 7637-2. Use Value: Eliminates need for external series impedance or additional filtering due to sub-nanosecond response and low clamping overshoot. |
Use Scenario: Protecting analog outputs of pressure or temperature sensors connected to ADC inputs in HVAC control boards. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 μA) TVS placed at sensor connector to shunt ESD strikes before reaching precision amplifier front-ends. Use Value: Preserves measurement accuracy by avoiding DC offset shift or input stage saturation during 8 kV contact ESD events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CAHM3_B/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same RθJA and clamping performance. | Required where RoHS-compliant halogen-free materials are mandated (e.g., EU automotive Tier 1 supply chains). | Select when compliance with JEDEC JESD201 Class 2 whisker resistance and halogen-free policy is contractually required. |
| SMCJ110CAHE3_A/I | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; higher RθJA (60 °C/W) and 1500 W PPPM rating. | Better suited for higher-energy surge environments (e.g., outdoor telecom cabinets) where PCB space allows larger footprint. | Choose only if system-level surge testing exceeds IEC 61000-4-5 Level 4 and thermal margin must be increased beyond SMB limits. |
Compared with SMBJ110CAHE3_B/I, the HM3 variant offers identical protection performance with halogen-free construction, while the SMCJ110CAHE3_A/I delivers higher surge capacity at the cost of board area and thermal layout flexibility - making SMBJ110CAHE3_B/I optimal for space-constrained, AEC-Q101-compliant designs.
Availability
SMBJ110CAHE3_B/I is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, automotive body control modules, and sensor interface protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMBJ110CAHE3_B/I 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, thermal performance, and automotive qualification.
The SMBJ series targets high-reliability transient suppression in space-constrained applications, combining AEC-Q101 validation, industry-standard DO-214AA packaging, and precise clamping for industrial and automotive electronics.
FAQ
What is the clamping voltage of SMBJ110CAHE3_B/I at its rated peak pulse current?
The SMBJ110CAHE3_B/I has a maximum clamping voltage (VC) of 177 V at its specified peak pulse current (IPPM) of 3.4 A under the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings. The SMBJ110CAHE3_B/I maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C).
Is SMBJ110CAHE3_B/I suitable for automotive applications?
Yes, SMBJ110CAHE3_B/I is AEC-Q101 qualified, as indicated by the "HE3" suffix in its ordering code. It is validated for use in automotive body electronics, including door modules, lighting controls, and LIN bus interfaces. Its bidirectional architecture, 150 °C maximum junction temperature, and MSL Level 1 reflow compatibility meet stringent automotive manufacturing and field reliability requirements - confirmed in Vishay document 88392, Revision 09-Jan-2024.
How does the bidirectional configuration of SMBJ110CAHE3_B/I affect its circuit placement?
The SMBJ110CAHE3_B/I has no polarity marking and functions identically in both directions, allowing placement across any two nodes subject to bidirectional transients - such as AC power inputs, differential data lines, or floating sensor outputs. Unlike unidirectional TVS diodes, it eliminates orientation errors during automated assembly and simplifies layout by removing the need for cathode alignment checks. Its symmetrical VBR (122–135 V) and VC ensure consistent clamping regardless of surge polarity.
What is the thermal resistance and recommended PCB layout for SMBJ110CAHE3_B/I?
SMBJ110CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, measured with 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To sustain its 5.0 W power dissipation at TA = 50 °C, each pad must be solid-copper, thermally connected to internal ground/power planes via ≥2 vias, and free of solder mask over the pad surface. This layout is specified in Vishay's mechanical drawings for SMB (DO-214AA) and directly impacts long-term reliability under repetitive surge conditions.
Does SMBJ110CAHE3_B/I meet UL recognition standards?
Yes, SMBJ110CAHE3_B/I carries Underwriters Laboratories recognition under UL 497B (file E136766) for protector classification QVGQ2, covering both unidirectional and bidirectional configurations. This certification confirms compliance with safety requirements for transient voltage protection devices used in telecommunications and industrial equipment - supporting regulatory submissions where UL listing is mandatory. The recognition applies specifically to the HE3-grade construction detailed in Vishay document 88392.
SMBJ110CAHE3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ110CAHE3_B/I FAQ
1.How can I place an order for SMBJ110CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CAHE3_B/I 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 SMBJ110CAHE3_B/I reliable?
The price and inventory of SMBJ110CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ110CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CAHE3_B/I?
SMBJ110CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CAHE3_B/I 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 SMBJ110CAHE3_B/I?
For technical support, including SMBJ110CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CAHE3_B/I requirements.
6.How does Aetrix verify that SMBJ110CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ110CAHE3_B/I 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 SMBJ110CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ110CAHE3_B/I?
All SMBJ110CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CAHE3_B/I, 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 SMBJ110CAHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ110CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CAHE3_B/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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