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Vishay General Semiconductor - Diodes Division SMBJ110CAHE3_B/H
- Part No.:
- SMBJ110CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CAHE3_B/H.pdf
- Description:
- 600W,110V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,843
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Product details
Overview
SMBJ110CAHE3_B/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 110 V standoff voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 177 V maximum clamping voltage (VC) at 3.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform). It protects MOSFETs, ICs, and sensor signal lines in industrial power supplies and telecom interfaces.
For engineers reviewing the SMBJ110CAHE3_B/H datasheet, SMBJ110CAHE3_B/H pinout, SMBJ110CAHE3_B/H application, or SMBJ110CAHE3_B/H equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and bidirectional surge protection capability for robust ESD and lightning transient design.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (122 V / 135 V), VC (177 V), and IPPM (3.4 A) in either direction. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ps), enabling effective suppression of EFT, ESD, and inductive switching spikes.
The device is rated for 600 W peak pulse power under 10/1000 µs waveform with 0.01% duty cycle, and supports repetitive surge events when thermally managed per its RθJL = 20 °C/W and RθJA = 100 °C/W ratings. It meets MSL Level 1 (260 °C reflow) and is AEC-Q101 qualified for automotive-grade reliability.
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 mA - Confirmed bidirectional breakdown range; ensures predictable turn-on during overvoltage events. |
| 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 transient energy absorption capacity under standardized 10/1000 µs waveform. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimal standby current draw; critical for low-power sensor and battery-backed systems. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in high-ambient industrial or under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard 0.2" × 0.2" copper pads; informs PCB thermal layout requirements. |
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 |
|---|---|---|
| Cathode (Anode side in bidirectional) | Transient current return path | Both terminals conduct identically during surge; no functional cathode/anode distinction-symmetrical clamping behavior. |
| Anode (Cathode side in bidirectional) | Transient current entry point | Terminal pair forms a voltage-clamped bidirectional shunt; used across line-to-line or line-to-ground without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or differential signals without polarity concerns-reduces BOM count and layout complexity. |
| AEC-Q101 qualification | Validated for automotive applications including infotainment power rails and body control modules requiring extended temperature and reliability compliance. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted-supports industrial-grade EMC robustness. |
| MSL Level 1 rating | Compatible with standard lead-free reflow profiles up to 260 °C peak-eliminates moisture sensitivity handling requirements. |
| Glass passivated junction | Ensures stable VBR and low leakage over lifetime and temperature cycling-critical for long-term field reliability in harsh environments. |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V DC input rails in PLC I/O modules against load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed across input terminals to limit transient voltage to ≤177 V during 3.4 A surge events. Use Value: Prevents damage to upstream DC-DC controllers and downstream microcontrollers by clamping within safe operating area defined by VWM = 110 V and VC = 177 V. |
Use Scenario: Safeguarding CAN FD or LIN bus transceivers connected to vehicle chassis ground against ESD and battery transients. IC Role / Device Role / Timing Role: Line-to-line TVS on differential bus pairs, leveraging symmetrical clamping to suppress ±15 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity during fast transients due to sub-nanosecond response and <1.0 µA leakage at 110 V standoff-no impact on bus biasing. |
| Telecom Equipment Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHY power pins and auxiliary control lines in PoE-powered switches from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after primary GDT or MOV, providing precise clamping at 177 V to protect sensitive PHY ICs. Use Value: 600 W rating and 100 °C/W thermal resistance allow sustained surge handling without thermal runaway when paired with 0.2" × 0.2" copper pads. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp commutation spikes before they reach MCU GPIOs or driver FETs. Use Value: 135 V max VBR ensures early conduction before motor flyback exceeds 150 V, while 177 V VC limits stress on 200 V-rated MOSFETs. |
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 | Commercial-grade (non-AEC-Q101), same VWM/VBR/VC/PPPM, identical SMB package and pinout. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMBJ110CAHE3_B/H when automotive reliability, extended temperature validation, or OEM compliance is required. |
| SMCJ110CAHE3_A/H | Same electrical specs but in larger SMC (DO-214AB) package; higher RθJA (60 °C/W) and 1500 W PPPM rating. | Offers greater surge margin and thermal headroom; requires larger PCB footprint and different pad layout. | Choose SMBJ110CAHE3_B/H for space-constrained layouts where 600 W suffices and SMB footprint is fixed. |
Compared with SMBJ110CA-E3/52, the SMBJ110CAHE3_B/H adds AEC-Q101 qualification without altering electrical performance-ideal for automotive Tier-1 suppliers needing traceable qualification. Against SMCJ110CAHE3_A/H, it trades surge capacity and thermal margin for compact SMB packaging-suited for dense consumer and telecom PCBs.
Availability
SMBJ110CAHE3_B/H is available at Aetrix Electronics and suitable for industrial power supply protection, automotive sensor interface hardening, telecom equipment surge suppression, and consumer appliance motor drive protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ110CAHE3_B/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was engineered for high-reliability transient suppression in space-constrained surface-mount applications-targeting automotive, industrial, and telecom systems demanding consistent clamping performance and AEC-Q101 validation.
FAQ
What is the maximum clamping voltage of the SMBJ110CAHE3_B/H under a 10/1000 µs surge?
The SMBJ110CAHE3_B/H has a maximum clamping voltage (VC) of 177 V at a peak pulse current (IPPM) of 3.4 A under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events-critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SMBJ110CAHE3_B/H suitable for automotive applications?
Yes, SMBJ110CAHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation revision 09-Jan-2024. It undergoes rigorous stress testing for temperature cycling, humidity, mechanical shock, and surge endurance-making it appropriate for engine control units, ADAS sensors, and infotainment power rails where automotive-grade reliability is mandatory.
What does the "CA" suffix indicate in SMBJ110CAHE3_B/H?
The "CA" suffix in SMBJ110CAHE3_B/H denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression in both polarities, with identical VBR (122–135 V), VC (177 V), and IPPM (3.4 A) characteristics regardless of voltage polarity. This eliminates orientation concerns during placement and simplifies protection of AC-coupled or differential signal paths.
How does the thermal resistance of SMBJ110CAHE3_B/H affect PCB layout?
SMBJ110CAHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures during repetitive surges, designers must allocate sufficient copper area and avoid thermal bottlenecks-especially important in enclosed industrial enclosures where ambient temperatures exceed 85 °C.
What is the reverse leakage current specification for SMBJ110CAHE3_B/H at its stand-off voltage?
At its 110 V stand-off voltage (VWM), the SMBJ110CAHE3_B/H exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C. This ultra-low leakage ensures minimal power loss in always-on systems such as battery-backed sensors or standby power rails-preserving system efficiency without compromising transient response speed or clamping precision.
SMBJ110CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for SMBJ110CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CAHE3_B/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_B/H reliable?
The price and inventory of SMBJ110CAHE3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ110CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CAHE3_B/H?
SMBJ110CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CAHE3_B/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_B/H?
For technical support, including SMBJ110CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CAHE3_B/H requirements.
6.How does Aetrix verify that SMBJ110CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ110CAHE3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ110CAHE3_B/H?
All SMBJ110CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CAHE3_B/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_B/H part is unused and in its original packaging.
Return procedure for SMBJ110CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CAHE3_B/H Tags
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