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Vishay General Semiconductor - Diodes Division SMBJ110AHE3/52
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- Part No.:
- SMBJ110AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110AHE3/52.pdf
- Description:
- TVS DIODE 110VWM 177VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,063
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Product details
Overview
SMBJ110AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. 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, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive body control modules.
For engineers reviewing the SMBJ110AHE3/52 datasheet, SMBJ110AHE3/52 pinout, SMBJ110AHE3/52 application, or SMBJ110AHE3/52 equivalent, key selection criteria include clamping performance under 3.4 A surge, unidirectional polarity with cathode band marking, AEC-Q101 qualification status, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge current away from downstream ICs or MOSFETs. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive transients.
Thermal design relies on RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), requiring minimum 0.2" × 0.2" copper pad per terminal for rated 600 W pulse handling. The device is rated for -55 °C to +150 °C operating junction temperature and meets MSL Level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA; defines safe DC rail operating margin. |
| VBR (min/max) | 122 V / 135 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPPM | 177 V at 3.4 A - Clamped voltage seen by protected circuit during full-rated 600 W surge; determines residual stress on downstream components. |
| PPPM | 600 W - Peak pulse power dissipation capability with 10/1000 µs waveform; validates protection against IEC 61000-4-5 Level 4 surges. |
| IFSM | 100 A - Non-repetitive forward surge current rating (8.3 ms half-sine); supports protection against inductive switch-off events. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-ambient industrial environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; carries full transient current during clamping. |
| Cathode | Reverse-biased terminal / Protection reference | Connected to protected line (e.g., 110 V rail); defines VWM and VBR thresholds relative to this node. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates immunity to severe lightning-induced surges per IEC 61000-4-5, enabling single-device protection without external series impedance. |
| AEC-Q101 qualified (HE3 suffix) | Confirms suitability for automotive applications including BCM, ADAS power domains, and infotainment supply rails without additional qualification effort. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift over temperature and lifetime - critical for long-term field reliability. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns), improving protection margin for sensitive gate drivers and ADC inputs. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 110 V DC bus against switching transients from IGBT gate drive coupling and contactor bounce. IC Role / Device Role / Timing Role: Shunt clamping TVS placed directly across bus rails to limit voltage excursions below MOSFET VDSS rating. Use Value: Limits clamped voltage to 177 V, providing 13 V margin below common 190 V rated power MOSFETs and preventing cumulative gate oxide stress. |
Use Scenario: Input-stage surge suppression on 110 V telecom rectifier outputs exposed to AC line transients and hot-swap events. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to system ground, absorbing positive-going surges while blocking normal 110 V DC reverse bias. Use Value: Withstands 100 A IFSM and maintains <1 µA leakage at 110 V, ensuring no load impact during steady-state operation. |
| Automotive Body Control Modules | Industrial PLC I/O Modules |
Use Scenario: Protection of LIN bus power pins and microcontroller supply inputs in BCMs subjected to load dump and jump-start conditions. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS placed at power entry point to clamp transients before LDO regulators. Use Value: 150 °C TJ max. and validated thermal impedance enable reliable operation in sealed, high-temperature engine bay enclosures. |
Use Scenario: Field-side protection of analog input channels (e.g., 4–20 mA loops) connected to 110 V auxiliary power in factory automation systems. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) TVS mounted adjacent to connector to prevent false triggering of precision current-sense amplifiers. Use Value: Tight VBR tolerance (122–135 V) ensures consistent clamping onset across production lots, reducing calibration drift risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110AHM3/52 | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free compliance is mandated by OEM environmental policy. | Direct material substitution when halogen-free requirement applies; same footprint, thermal, and electrical behavior. |
| SMCJ110AHE3/52 | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with 1500 W PPPM and higher IPPM (7.5 A). | Used where higher surge energy (e.g., outdoor telecom cabinets) demands >600 W rating and board space permits larger footprint. | Select only if 1500 W surge capacity is required; not drop-in due to larger package and different pad layout. |
Compared with SMBJ110AHE3/52, SMBJ110AHM3/52 offers identical protection performance with halogen-free construction, while SMCJ110AHE3/52 provides higher surge capacity at the cost of increased PCB area and thermal mass - choice depends strictly on environmental compliance mandates or surge energy budget requirements.
Availability
SMBJ110AHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and PLC I/O modules requiring stable component supply with AEC-Q101 validation and RoHS compliance.
Supply support for SMBJ110AHE3/52 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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The SMBJ series is engineered for high-energy transient suppression in space-constrained applications, targeting automotive, industrial, and telecom systems where robustness, AEC-Q101 compliance, and precise clamping are mandatory.
FAQ
What is the clamping voltage of SMBJ110AHE3/52 at its rated peak pulse current?
The SMBJ110AHE3/52 has a maximum clamping voltage (VC) of 177 V at its rated peak pulse current of 3.4 A (10/1000 µs waveform). This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuits during full-rated surge events. The SMBJ110AHE3/52 maintains this clamping performance across its qualified temperature range and after multiple surge cycles, supporting design margin calculations for downstream components.
Is SMBJ110AHE3/52 suitable for automotive applications?
Yes, SMBJ110AHE3/52 is AEC-Q101 qualified, confirming its reliability for automotive use cases including body control modules, infotainment power rails, and ADAS sensor supply lines. The HE3 suffix explicitly denotes AEC-Q101 qualification, and the device undergoes stress testing for temperature cycling, high-temperature reverse bias, and ESD per the AEC standard. SMBJ110AHE3/52 operates up to +150 °C junction temperature, meeting under-hood thermal requirements without derating.
What does the "HE3" suffix indicate in SMBJ110AHE3/52?
The "HE3" suffix in SMBJ110AHE3/52 indicates RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3 (RoHS only) and HM3 (halogen-free + RoHS + AEC-Q101) versions. The HE3 marking confirms that SMBJ110AHE3/52 meets automotive reliability standards while maintaining the same electrical specifications, package dimensions, and thermal characteristics as other SMBJ110A variants.
How does SMBJ110AHE3/52 differ from bidirectional TVS diodes like SMBJ110CA?
SMBJ110AHE3/52 is unidirectional and features a cathode band marking, allowing it to block reverse voltage up to 110 V while clamping positive transients. In contrast, SMBJ110CA is bidirectional with symmetric clamping in both polarities and no polarity marking. SMBJ110AHE3/52 exhibits lower leakage (<1 µA at VWM) and is preferred for DC rail protection, whereas SMBJ110CA suits AC-coupled signal lines or differential buses where polarity reversal occurs.
What PCB layout guidance applies to SMBJ110AHE3/52 for optimal surge handling?
For rated 600 W pulse performance, SMBJ110AHE3/52 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, per Vishay's datasheet fig. 2 and note (2). Traces to the device should be short and wide to minimize inductance, and ground connections must provide low-impedance return paths. Thermal vias under pads improve heat dissipation during repetitive surges. The SMBJ110AHE3/52 package (DO-214AA) requires standard SMT reflow profiles compliant with MSL Level 1.
SMBJ110AHE3/52 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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBJ110AHE3/52 FAQ
1.How can I place an order for SMBJ110AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110AHE3/52 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 SMBJ110AHE3/52 reliable?
The price and inventory of SMBJ110AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ110AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ110AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110AHE3/52?
SMBJ110AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110AHE3/52 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 SMBJ110AHE3/52?
For technical support, including SMBJ110AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110AHE3/52 requirements.
6.How does Aetrix verify that SMBJ110AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ110AHE3/52 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 SMBJ110AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ110AHE3/52?
All SMBJ110AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110AHE3/52, 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 SMBJ110AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ110AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110AHE3/52 Tags
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