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Vishay General Semiconductor - Diodes Division SMBJ110CAHE3/52
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- Part No.:
- SMBJ110CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CAHE3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,907
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Product details
Overview
SMBJ110CAHE3/52 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 stand-off voltage (VWM), 122–135 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤177 V at 3.4 A peak surge current - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the SMBJ110CAHE3/52 datasheet, SMBJ110CAHE3/52 pinout, SMBJ110CAHE3/52 application, or SMBJ110CAHE3/52 equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, clamping performance under standardized surge waveforms, and real-world use context for ESD/lightning transient suppression in bidirectional AC-coupled or floating circuits.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (122 V / 135 V), ID ≤1.0 µA at VWM = 110 V, and VC = 177 V at IPPM = 3.4 A. Its low incremental surge resistance and sub-nanosecond response time enable effective suppression of fast-rising transients induced by inductive switching or lightning surges.
The device is rated for TJ = –55 °C to +150 °C, meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and carries AEC-Q101 qualification - confirming suitability for automotive electronics where reliability under thermal cycling and mechanical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - guaranteed breakdown threshold range for reliable turn-on margin |
| VC @ IPPM | 177 V at 3.4 A - clamped voltage during 10/1000 µs surge, defining worst-case overvoltage seen by protected circuit |
| PPPM | 600 W - peak transient energy absorption capability under standard 10/1000 µs waveform |
| ID @ VWM | ≤1.0 µA - leakage current level ensuring minimal standby power loss and signal integrity in high-impedance paths |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood or enclosed industrial environments |
| Package | SMB (DO-214AA) - surface-mount outline with 5.21 mm × 4.06 mm footprint, compatible with automated SMT assembly |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Terminal 1) | Anode/Cathode terminal pair (bidirectional) | Identical electrical behavior in both directions; terminals interchangeable - no functional polarity |
| Anode (Terminal 2) | Anode/Cathode terminal pair (bidirectional) | Provides symmetrical clamping path for positive or negative transients without external biasing |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled, differential, or floating signal/power lines without polarity concerns |
| 600 W peak pulse power (10/1000 µs) | Withstands repetitive surge events typical in industrial motor drives and telecom line interfaces |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow soldering without popcorn cracking or delamination risk |
| Low leakage (≤1.0 µA @ 110 V) | Maintains signal fidelity in high-impedance sensor front-ends and precision analog monitoring paths |
Applications
| Industrial Sensor Interface | Telecom Line Protection |
|---|---|
|
Use Scenario: Protecting RS-485 transceivers and analog sensor outputs from ESD and inductive kickback in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential bus lines or supply rails to clamp transients before they reach IC inputs. Use Value: Prevents latch-up or permanent damage to transceivers operating at ±12 V common-mode range while maintaining signal integrity via low capacitance and leakage. |
Use Scenario: Safeguarding Ethernet PHY ports and DSL line drivers against lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Primary-level surge suppressor mounted at connector entry point, shunting energy before it propagates into sensitive PHY ICs. Use Value: Limits peak voltage to ≤177 V during 10/1000 µs surges, meeting IEC 61000-4-5 Level 3 (1 kV) requirements without additional series impedance. |
| Automotive Body Control Module | AC Power Input Stage |
|
Use Scenario: Protecting LIN bus nodes and LED driver control lines in vehicle body electronics exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary protection element downstream of fuse or polyfuse, absorbing residual transients after primary filtering. Use Value: AEC-Q101 qualification ensures survival across –40 °C to +125 °C ambient with no derating up to 110 V working voltage. |
Use Scenario: Clamping voltage spikes on AC mains input rectifiers in SMPS and industrial power supplies. IC Role / Device Role / Timing Role: Parallel-connected TVS across bridge rectifier output or across bulk capacitor to suppress switching transients. Use Value: Withstands 600 W surges without degradation, enabling robust design against MOSFET turn-off spikes and transformer leakage energy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA-M3/52 | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification | No functional difference; selected when halogen-free material compliance is required for end-product certification | Direct substitution where halogen-free bill-of-materials is mandated |
| SMCJ110CAHE3/52 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM rating | Higher surge handling capacity suits applications with higher-energy threats (e.g., outdoor power metering) | Choose when system-level surge testing exceeds 600 W or board layout allows larger footprint |
Compared with SMBJ110CAHE3/52, the M3 variant offers identical protection performance with halogen-free construction, while the SMCJ110CAHE3/52 provides 2.5× higher pulse power in a larger package - enabling trade-offs between board space, regulatory compliance, and threat-level coverage.
Availability
SMBJ110CAHE3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, and automotive body control modules requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMBJ110CAHE3/52 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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, emphasizing high-reliability performance and automotive-grade qualification.
The SMBJ series targets robust transient suppression in space-constrained applications, balancing high pulse power density, low leakage, and AEC-Q101 validation for automotive and industrial use cases.
FAQ
What does the "CA" suffix indicate in SMBJ110CAHE3/52?
The "CA" suffix denotes a bidirectional configuration - meaning SMBJ110CAHE3/52 provides symmetrical clamping for both positive and negative voltage transients without polarity sensitivity. This differs from unidirectional variants (e.g., SMBJ110AHE3/52), which require correct cathode orientation and only clamp in reverse bias.
Is SMBJ110CAHE3/52 qualified for automotive applications?
Yes, SMBJ110CAHE3/52 carries AEC-Q101 qualification, confirmed in Vishay's official documentation. This validates its reliability for automotive use including temperature cycling, mechanical shock, and humidity exposure - making it suitable for body control modules, infotainment interfaces, and sensor nodes.
What is the clamping voltage of SMBJ110CAHE3/52 under surge conditions?
SMBJ110CAHE3/52 clamps to a maximum of 177 V when subjected to its rated peak pulse current of 3.4 A (10/1000 µs waveform). This VC value defines the upper voltage limit imposed on protected circuitry during transient events, ensuring downstream ICs remain within safe operating ranges.
Does SMBJ110CAHE3/52 have polarity markings on the package?
No - SMBJ110CAHE3/52 is a bidirectional TVS and carries no cathode band or polarity marking. Both terminals are functionally identical, allowing flexible PCB layout without orientation constraints, unlike unidirectional SMBJ variants which feature a visible cathode band.
What is the maximum operating temperature for SMBJ110CAHE3/52?
SMBJ110CAHE3/52 supports a junction temperature range of –55 °C to +150 °C. Its thermal resistance (RθJA = 100 °C/W) and MSL Level 1 rating ensure stable operation in high-ambient environments such as engine compartments or sealed industrial enclosures.
SMBJ110CAHE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
SMBJ110CAHE3/52 FAQ
1.How can I place an order for SMBJ110CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CAHE3/52 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 SMBJ110CAHE3/52 reliable?
The price and inventory of SMBJ110CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110CAHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ110CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CAHE3/52?
SMBJ110CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CAHE3/52 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 SMBJ110CAHE3/52?
For technical support, including SMBJ110CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CAHE3/52 requirements.
6.How does Aetrix verify that SMBJ110CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ110CAHE3/52 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 SMBJ110CAHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ110CAHE3/52?
All SMBJ110CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CAHE3/52, 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 SMBJ110CAHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ110CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CAHE3/52 Tags
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