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Vishay General Semiconductor - Diodes Division SMBJ110AHE3_B/H
- Part No.:
- SMBJ110AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ110AHE3_B/H.pdf
- Description:
- 600W,110V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,332
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Product details
Overview
SMBJ110AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. 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.
For engineers reviewing the SMBJ110AHE3_B/H datasheet, SMBJ110AHE3_B/H pinout, SMBJ110AHE3_B/H application, or SMBJ110AHE3_B/H equivalent, key selection considerations include clamping performance under 3.4 A surge, thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, unidirectional polarity marking, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device placed in parallel with vulnerable circuit nodes-typically across power rails or signal lines-to shunt transient energy to ground before damaging voltage thresholds are exceeded. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM).
The SMBJ110AHE3_B/H leverages avalanche breakdown for fast response (<1 ns), exhibits low incremental surge resistance, and maintains stable clamping up to 150 °C junction temperature. Its AEC-Q101 qualification confirms suitability for automotive-grade reliability requirements including temperature cycling, humidity bias, and mechanical shock testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 110 V - Maximum continuous reverse operating voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR min/max | 122 V / 135 V at IT = 1 mA - Confirmed breakdown range ensuring 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 with 10/1000 µs waveform - Peak transient energy absorption capability under standardized surge test condition. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; critical for thermal derating above 25 °C ambient. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive or industrial environments. |
| Polarity | Unidirectional - Cathode marked by band; blocks forward current until VBR exceeded in reverse direction only. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Molding compound meets UL 94 V-0 flammability rating. Polarity indicated by cathode band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point (reverse-biased during protection) | Connected to lower-potential node (e.g., GND or return path); forms current path when transient exceeds VBR. |
| Cathode | Reverse-biased terminal during normal operation | Marked with band; connected to protected line (e.g., 110 V rail); conducts avalanche current to anode during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including temperature cycling, mechanical shock, and humidity bias per JESD22 standards. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge (4 kV/2 Ω) when properly mounted on recommended copper pads. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<1 µA), and long-term reliability under repeated transient stress. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Low profile SMB package | Enables high-density PCB layouts and supports automated pick-and-place assembly with industry-standard feeders. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp spikes exceeding 110 V stand-off level. Use Value: Limits transient voltage to ≤177 V during 3.4 A surge, preventing damage to downstream regulators and microcontrollers rated for ≤200 V absolute maximum. |
Use Scenario: Safeguarding analog output lines of pressure/temperature sensors in factory automation systems exposed to relay-induced switching noise. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA or 0–10 V signal paths to absorb inductive kickback before reaching ADC inputs. Use Value: Sub-1 ns response time ensures clamping occurs before sensor interface ICs experience overstress, preserving measurement integrity and longevity. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Securing -48 V DC input stages of telecom base station power supplies against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional TVS configured with cathode to -48 V rail and anode to chassis ground to handle negative-going transients. Use Value: 177 V clamping voltage ensures protected rectifier and filter capacitors remain within 200 V rating, avoiding catastrophic failure during multi-kV events. |
Use Scenario: Shielding MCU GPIOs and gate drivers in smart home appliances (e.g., washing machine motor controllers) from back-EMF generated by brushed DC motors. IC Role / Device Role / Timing Role: Localized TVS on motor driver supply lines and feedback traces to suppress repetitive 100–500 V spikes at kHz frequencies. Use Value: 600 W rating supports repeated surge handling without degradation; AEC-Q101 qualification ensures robustness across 10,000+ motor cycles. |
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_B/H | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification. | No functional difference; selected where halogen-free material compliance is mandated by OEM or regional regulations. | Choose SMBJ110AHM3_B/H when environmental compliance requires halogen-free packaging without sacrificing performance or qualification. |
| SMBJ110A-E3/52 | Commercial-grade (non-AEC-Q101), same SMB package and electrical characteristics, RoHS-compliant but not automotive-qualified. | Suitable for non-automotive industrial or consumer applications where extended temperature cycling validation is not required. | Prefer SMBJ110A-E3/52 for cost-sensitive designs outside automotive or harsh-environment use cases. |
Compared with SMBJ110AHE3_B/H, the HM3 variant adds halogen-free construction while maintaining AEC-Q101 qualification, whereas the E3/52 version removes automotive qualification to reduce cost-enabling tiered sourcing based on end-equipment reliability and regulatory requirements.
Availability
SMBJ110AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom power supplies, and consumer appliance motor controls requiring stable component supply with AEC-Q101 assurance and consistent surge performance.
Supply support for SMBJ110AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust transient suppression in automotive, industrial, and telecom infrastructure where precise clamping, repeatable surge endurance, and qualification-grade consistency are mandatory.
FAQ
What is the clamping voltage of SMBJ110AHE3_B/H at its rated peak pulse current?
The SMBJ110AHE3_B/H has a maximum clamping voltage (VC) of 177 V at its rated peak pulse current (IPPM) of 3.4 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a full 600 W transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
Is SMBJ110AHE3_B/H suitable for automotive applications?
Yes, SMBJ110AHE3_B/H is AEC-Q101 qualified, as explicitly stated in the Vishay ordering information table (page 3) and thermal characteristics note. This certification validates its reliability for automotive powertrain, body, and infotainment systems subject to extended temperature cycling, vibration, and humidity stress-making it appropriate for use in ECUs and ADAS modules.
What does the "HE3" suffix indicate in SMBJ110AHE3_B/H?
The "HE3" suffix in SMBJ110AHE3_B/H denotes a RoHS-compliant and AEC-Q101 qualified version, where "H" indicates the AEC-Q101 qualification grade and "E3" specifies RoHS-compliant commercial-grade construction. The "_B/H" further identifies the tape-and-reel packaging format (7" reel, 750 units) per Vishay's ordering nomenclature on page 3.
How does the SMBJ110AHE3_B/H differ from bidirectional variants like SMBJ110CA?
SMBJ110AHE3_B/H is unidirectional with cathode marking and conducts only in reverse breakdown, while SMBJ110CA is bidirectional with symmetrical clamping in both polarities and no polarity marking. The unidirectional version offers lower leakage and is preferred for DC rail protection; the bidirectional type suits AC-coupled or floating signal lines where polarity reversal may occur.
What is the thermal resistance of SMBJ110AHE3_B/H, and how does it affect layout design?
SMBJ110AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value mandates adequate copper area and thermal vias in high-duty-cycle surge scenarios to prevent junction temperature from exceeding +150 °C, especially above 25 °C ambient.
SMBJ110AHE3_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:
- 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:
- 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)
SMBJ110AHE3_B/H FAQ
1.How can I place an order for SMBJ110AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ110AHE3_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 SMBJ110AHE3_B/H reliable?
The price and inventory of SMBJ110AHE3_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 SMBJ110AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ110AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ110AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ110AHE3_B/H?
SMBJ110AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ110AHE3_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 SMBJ110AHE3_B/H?
For technical support, including SMBJ110AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ110AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ110AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ110AHE3_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 SMBJ110AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ110AHE3_B/H?
All SMBJ110AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ110AHE3_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 SMBJ110AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ110AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ110AHE3_B/H Tags
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