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Vishay General Semiconductor - Diodes Division SMBJ110CAHE3_A/H
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- Part No.:
- SMBJ110CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CAHE3_A/H.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,963
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Product details
Overview
SMBJ110CAHE3_A/H 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 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 600 W peak pulse power dissipation - deployed to protect MOSFETs, ICs, and sensor interfaces in industrial motor drives and telecom power supplies.
For engineers reviewing the SMBJ110CAHE3_A/H datasheet, SMBJ110CAHE3_A/H pinout, SMBJ110CAHE3_A/H application, or SMBJ110CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), low leakage (<1.0 µA at VWM), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamping protector using an avalanche junction structure, responding within <1 ps to transient overvoltages. Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating need for polarity-aware layout - critical for AC-coupled or floating signal lines.
The SMBJ110CAHE3_A/H is rated for repetitive surge duty cycle of 0.01 %, with thermal derating above 25 °C per Figure 2, and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C). It is RoHS-compliant and AEC-Q101 qualified, confirming suitability for automotive power subsystems requiring long-term reliability under thermal cycling and humidity exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - maximum continuous reverse operating voltage before clamping initiates; defines safe operating margin for 96–110 V DC bus protection. |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - guaranteed breakdown window ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 177 V - clamped voltage during 600 W transient; limits downstream stress to <177 V even under full-rated surge. |
| IPPM | 177 A - peak surge current survivability with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 (4 kV) compliance when properly decoupled. |
| PPPM | 600 W - standardized surge power rating enabling direct comparison with competing TVS devices under identical test conditions. |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on 0.2" × 0.2" copper pads; informs board-level thermal design for sustained power dissipation. |
| ID @ VWM | ≤1.0 µA - ultra-low reverse leakage preserves system efficiency and avoids false triggering in high-impedance sensing paths. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical cathode/anode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts surge current during negative half-cycle; electrically identical to Cathode due to bidirectional construction. |
| Cathode | Transient current entry (positive polarity) | Accepts surge current during positive half-cycle; functionally interchangeable with Anode in layout. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surges without derating in compact SMB footprint. |
| AEC-Q101 qualified | Validated for automotive power modules and body control units requiring extended temperature cycling and humidity resistance. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-induced popcorn failure or delamination. |
| Glass passivated junction | Ensures stable VBR and low leakage over 15-year field life in humid or chemically aggressive environments. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., inductive switch-off in solenoid drivers). |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate drivers and bus voltage sense circuits against switching spikes from IGBTs and MOSFETs. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed across DC-link capacitors and gate resistor networks. Use Value: Limits transient excursions to ≤177 V, preventing gate oxide rupture in 120 V-rated SiC drivers and preserving ADC input integrity. |
Use Scenario: Input-stage surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping element between output rail and chassis ground. Use Value: Withstands repeated 600 W surges while maintaining <1 µA leakage - avoids loading sensitive -48 V bias rails. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: CAN FD and LIN bus line protection in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary-level TVS parallel to primary polymer PTC and common-mode choke. Use Value: AEC-Q101 qualification ensures operation from -40 °C to +125 °C ambient, with clamping response <1 ps to preserve signal edge integrity. |
Use Scenario: Overvoltage safeguard for 4–20 mA current loop transmitters interfacing with PLC analog inputs. IC Role / Device Role / Timing Role: Bidirectional shunt protector across loop terminals to absorb ESD and inductive kickback. Use Value: Symmetrical VBR (122–135 V) prevents false tripping during normal 24 V loop operation while clamping >1 kV transients. |
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, non-AEC-Q101; otherwise identical electrical specs and SMB package. | Lacks automotive qualification; suitable for commercial/industrial use where AEC-Q101 is not mandated. | Select when halogen-free compliance is required and automotive-grade reliability is unnecessary. |
| SMCJ110CAHE3_A/H | Same VWM/VBR/VC, but in larger SMC (DO-214AB) package; RθJA = 50 °C/W vs. 100 °C/W. | Higher thermal mass supports higher average surge repetition rates; requires larger PCB area. | Choose for applications needing improved thermal performance or legacy SMC footprint compatibility. |
Compared with SMBJ110CAHE3_A/H, the SMBJ110CA-M3/52 offers identical protection performance without automotive qualification, while the SMCJ110CAHE3_A/H delivers superior thermal handling at the cost of increased board space - enabling trade-offs between qualification scope and thermal headroom.
Availability
SMBJ110CAHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ110CAHE3_A/H 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, precision, and automotive-grade validation.
The SMBJ series is engineered for high-energy transient suppression in space-constrained applications, targeting industrial automation, telecom infrastructure, and automotive electronics where robustness and repeatable clamping are mandatory.
FAQ
What does the "CA" suffix indicate in SMBJ110CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration - meaning SMBJ110CAHE3_A/H provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., SMBJ110A), it has no polarity marking and functions identically regardless of applied voltage polarity, making it ideal for AC lines, differential buses, and floating sensor interfaces.
Is SMBJ110CAHE3_A/H suitable for automotive applications?
Yes - SMBJ110CAHE3_A/H is AEC-Q101 qualified, confirming its reliability for automotive use cases including body control modules, infotainment power rails, and ADAS sensor interfaces. It operates across -55 °C to +150 °C junction temperature and passes humidity, thermal cycling, and mechanical shock tests per AEC-Q101 requirements.
What is the maximum clamping voltage of SMBJ110CAHE3_A/H under surge conditions?
The maximum clamping voltage (VC) of SMBJ110CAHE3_A/H is 177 V when subjected to its rated 177 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and process variation, ensuring downstream components experience no more than 177 V during full-rated surge events.
How does the SMB (DO-214AA) package of SMBJ110CAHE3_A/H affect thermal performance?
The SMB package of SMBJ110CAHE3_A/H delivers a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per terminal. This allows effective heat dissipation for short-duration surges but requires careful PCB copper area planning for repetitive surge scenarios - unlike larger SMC packages with lower RθJA.
Can SMBJ110CAHE3_A/H replace unidirectional TVS diodes like SMBJ110A in existing designs?
No - SMBJ110CAHE3_A/H is bidirectional and lacks polarity marking, whereas SMBJ110A is unidirectional with a cathode band. Substituting SMBJ110CAHE3_A/H for SMBJ110A may cause unintended conduction in DC-biased circuits. Replacement requires verifying circuit topology supports symmetrical clamping and adjusting layout to remove polarity-dependent routing.
SMBJ110CAHE3_A/H 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:
- 177V
- Current - Peak Pulse (10/1000µs):
- 3.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ110CAHE3_A/H FAQ
1.How can I place an order for SMBJ110CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CAHE3_A/H 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_A/H reliable?
The price and inventory of SMBJ110CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ110CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CAHE3_A/H?
SMBJ110CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CAHE3_A/H 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_A/H?
For technical support, including SMBJ110CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CAHE3_A/H requirements.
6.How does Aetrix verify that SMBJ110CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ110CAHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ110CAHE3_A/H?
All SMBJ110CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CAHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for SMBJ110CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CAHE3_A/H Tags
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