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Vishay General Semiconductor - Diodes Division SMBJ110CAHE3/5B
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- Part No.:
- SMBJ110CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110CAHE3/5B.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,207
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Product details
Overview
SMBJ110CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of sensitive electronics. It features a 110 V stand-off 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 rating with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ110CAHE3/5B datasheet, SMBJ110CAHE3/5B pinout, SMBJ110CAHE3/5B application, or SMBJ110CAHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and bidirectional clamping behavior critical for surge immunity validation in automotive-grade power systems and Ethernet PHY protection.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling single-device protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance (±5%), low incremental surge resistance, and fast response time (<1 ns) to ESD and lightning-induced transients.
The device complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) standards when applied with proper PCB layout - including minimum 5.0 mm × 5.0 mm copper pads per terminal to sustain 600 W pulse dissipation under derated conditions above TA = 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 110 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 122–135 V at IT = 1 mA - Confirmed bidirectional avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 177 V at IPPM = 3.4 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy handling capability under standardized 10/1000 µs waveform; validated with 0.01% duty cycle. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on recommended 0.2" × 0.2" copper pads; governs thermal derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and high-temperature industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronic systems per stress test requirements; ordering code suffix HE3 confirms qualification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no band marking required. |
| Terminal 2 | Anode / Cathode (bidirectional) | Electrically identical to Terminal 1; enables symmetrical clamping on AC or differential lines without orientation dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, and transformer-coupled interfaces without external polarity management. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV line-earth surge) when mounted on 5.0 mm × 5.0 mm copper pads per terminal. |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics; HE3 suffix confirms compliance with stress testing per JESD22-A108. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes voltage overshoot during transients - critical for protecting 120 V-rated MOSFET gates and isolated DC-DC controller ICs. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no moisture sensitivity handling required prior to assembly. |
Applications
| Industrial Motor Drives | Telecom Line Interface |
|---|---|
|
Use Scenario: Protection of gate drivers and current-sense amplifiers against switching-induced voltage spikes in 3-phase inverters. IC Role / Device Role / Timing Role: Bidirectional TVS placed across DC bus rails and phase-leg outputs to clamp inductive kickback transients. Use Value: Limits transient voltage to ≤177 V, preventing gate oxide rupture in 200 V-rated SiC MOSFETs and ensuring >100,000-cycle reliability under 600 W surge loads. |
Use Scenario: Surge suppression on POTS or xDSL line interface transformers feeding analog front-end (AFE) circuits. IC Role / Device Role / Timing Role: Primary-level protection device located at transformer secondary side, shunting common-mode surges before AFE input stage. Use Value: Clamps 10/1000 µs surges to 177 V while maintaining <1 µA leakage at 110 V - preserving signal integrity and minimizing baseline offset drift. |
| Automotive Body Control Module | AC-DC Power Supply Input |
|
Use Scenario: Overvoltage protection on LIN bus transceivers and LED driver supply inputs exposed to load-dump events. IC Role / Device Role / Timing Role: Bidirectional TVS connected between LIN line and ground, rated for 12 V nominal but capable of surviving 24 V load dump peaks. Use Value: AEC-Q101 qualification ensures survivability through 1000 cycles of ISO 7637-2 Pulse 5a (75 V/350 ms); clamping action begins within <1 ns. |
Use Scenario: Secondary-side transient suppression on 110 VAC-derived DC rails powering microcontrollers and sensors. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after bridge rectifier and bulk capacitor to absorb residual line surges not filtered upstream. Use Value: 110 V VWM allows stable operation across universal input ranges (90–264 VAC), while 177 V VC prevents latch-up in 200 V-rated LDO regulators. |
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-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMB package and thermal performance. | No functional difference; selected where halogen-free material compliance is mandated by OEM environmental policy. | Direct substitution if halogen-free requirement applies; no layout or thermal redesign needed. |
| SMCJ110CAHE3/5B | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; higher RθJA (60 °C/W) and 1500 W PPPM rating due to increased thermal mass. | Used where higher surge endurance (>600 W) or board-level mechanical robustness is prioritized over footprint size. | Choose only when 600 W is insufficient; requires PCB pad revision and occupies ~2.5× more area than SMBJ110CAHE3/5B. |
Compared with SMBJ110CA-M3/5B, SMBJ110CAHE3/5B offers identical protection performance with standard RoHS compliance; versus SMCJ110CAHE3/5B, it trades surge headroom for compact SMB footprint - making SMBJ110CAHE3/5B optimal for space-constrained automotive and telecom modules requiring AEC-Q101 validation.
Availability
SMBJ110CAHE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom line interfaces, automotive body control modules, and AC-DC power supply inputs requiring stable component supply with AEC-Q101 assurance and full traceability.
Supply support for SMBJ110CAHE3/5B 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 validation.
The SMBJ series was engineered for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - delivering consistent clamping performance across temperature and lifetime while meeting stringent qualification standards like AEC-Q101.
FAQ
What does the "CA" suffix indicate in SMBJ110CAHE3/5B?
The "CA" suffix in SMBJ110CAHE3/5B denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage suppression in both polarities without requiring orientation during placement. This differs from unidirectional variants (e.g., SMBJ110AHE3/5B) that feature a cathode band and conduct only in reverse bias. The CA version is used on AC-coupled lines, differential buses, and transformer-isolated interfaces where polarity reversal occurs.
Is SMBJ110CAHE3/5B qualified for automotive applications?
Yes, SMBJ110CAHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness - validating its use in automotive body electronics, infotainment systems, and power distribution modules. Documentation is available in Vishay's qualified parts list under document number 88392, revision 09-Jan-2024.
What is the maximum clamping voltage of SMBJ110CAHE3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBJ110CAHE3/5B is 177 V, measured at a peak pulse current (IPPM) of 3.4 A using the standardized 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream components - such as 200 V-rated MOSFETs or isolated gate drivers - remain within safe operating limits.
How does the SMB package affect thermal performance of SMBJ110CAHE3/5B?
The SMB (DO-214AA) package of SMBJ110CAHE3/5B delivers 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. This thermal performance enables reliable 600 W pulse handling at 25 °C ambient, but requires derating above that temperature per Figure 2 in the datasheet - for example, to ~420 W at 75 °C ambient - to maintain TJ ≤ 150 °C.
Can SMBJ110CAHE3/5B replace SMBJ110AHE3/5B in a design?
No - SMBJ110CAHE3/5B cannot directly replace SMBJ110AHE3/5B because they differ fundamentally in polarity behavior: SMBJ110CAHE3/5B is bidirectional and lacks polarity marking, while SMBJ110AHE3/5B is unidirectional with a cathode band and conducts forward current up to 100 A (IFSM). Substitution would require verifying circuit topology supports symmetrical clamping and confirming no forward conduction path exists that could cause unintended conduction or latch-up.
SMBJ110CAHE3/5B 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)
SMBJ110CAHE3/5B FAQ
1.How can I place an order for SMBJ110CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110CAHE3/5B 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 SMBJ110CAHE3/5B reliable?
The price and inventory of SMBJ110CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ110CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110CAHE3/5B?
SMBJ110CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110CAHE3/5B 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 SMBJ110CAHE3/5B?
For technical support, including SMBJ110CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ110CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ110CAHE3/5B 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 SMBJ110CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ110CAHE3/5B?
All SMBJ110CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110CAHE3/5B, 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 SMBJ110CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ110CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110CAHE3/5B Tags
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Diodes Incorporated
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