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Vishay General Semiconductor - Diodes Division SMBJ150AHE3_B/I
- Part No.:
- SMBJ150AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150AHE3_B/I.pdf
- Description:
- 600W,150V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBJ150AHE3_B/I 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 150 V standoff voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 243 V maximum clamping voltage (VC) at 2.5 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives, telecom power supplies, and automotive ECUs.
For engineers reviewing the SMBJ150AHE3_B/I datasheet, SMBJ150AHE3_B/I pinout, SMBJ150AHE3_B/I application, or SMBJ150AHE3_B/I equivalent, key selection criteria include clamping performance under 2.5 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 fast-acting shunt protector: when transient voltage exceeds VBR (167–185 V), it avalanches into low-impedance conduction to clamp the line at ≤243 V. Its glass-passivated junction ensures stable leakage (<1.0 µA at 150 V) and repeatable breakdown behavior across temperature (−55 °C to +150 °C).
The device is rated for 600 W peak pulse power (10/1000 µs), 100 A non-repetitive forward surge current (8.3 ms half-sine), and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. The cathode band denotes polarity; no marking on bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 167–185 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage. |
| VC (Clamping Voltage) | 243 V at IPPM = 2.5 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs transient; determines downstream IC survivability. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs surge; validates protection level per IEC 61000-4-5. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on minimum pad layout; informs derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or high-temperature industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including HTOL, TC, and ESD testing; designated by HE3 suffix. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side of protected line (e.g., GND or return path); critical for unidirectional clamping direction. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to higher-potential side (e.g., +150 V rail); band-marked end ensures correct PCB orientation for polarity-sensitive protection. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validates robustness against lightning-induced surges and inductive switching transients in industrial power systems. |
| AEC-Q101 qualified (HE3 suffix) | Confirms automotive-grade reliability for engine control units, body electronics, and ADAS power domains without additional qualification effort. |
| Low incremental surge resistance | Enables tighter clamping (VC = 243 V @ 2.5 A) versus competing TVS devices, reducing stress on downstream MOSFETs or regulators. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures long-term parameter stability and low leakage (<1.0 µA) across temperature and humidity cycling. |
Applications
| Industrial Motor Drives | Telecom DC Power Supplies |
|---|---|
Use Scenario: Protection of 150 V DC bus against IGBT switching transients and load dump events. IC Role / Device Role / Timing Role: Shunt TVS diode placed across bulk capacitor input to clamp voltage spikes before they reach gate drivers or controllers. Use Value: Limits transient overvoltage to ≤243 V, preventing destructive failure of 200 V-rated electrolytic capacitors and SiC gate drivers. |
Use Scenario: Input-stage surge suppression on −48 V or +150 V telecom rectifier outputs feeding backplane distribution. IC Role / Device Role / Timing Role: Unidirectional clamping element referenced to system ground, absorbing coupled lightning surges from AC mains or external lines. Use Value: Withstands 600 W pulses while maintaining <1.0 µA leakage at 150 V, ensuring minimal standby power loss and long-term reliability in 24/7 infrastructure. |
| Automotive Engine Control Units | Industrial PLC I/O Modules |
Use Scenario: Protection of 12 V/24 V sensor supply rails and CAN transceiver power pins exposed to load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Primary overvoltage clamp on microcontroller power domain, triggered within picoseconds of transient onset. Use Value: AEC-Q101 qualification and 150 °C TJ max. enable direct integration into under-hood ECU designs without derating penalties. |
Use Scenario: Field-side protection on analog input channels (e.g., 4–20 mA loops) subject to accidental 24 V DC wiring faults or electrostatic discharge. IC Role / Device Role / Timing Role: Fast-response shunt limiter placed between signal line and local ground, diverting fault current away from precision ADC front-ends. Use Value: Clamps 2.5 A surges to ≤243 V in <1 ns, preserving 16-bit measurement integrity and eliminating need for secondary protection stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150AHE3_B/H | Same electrical specs and AEC-Q101 qualification; differs only in tape-and-reel packaging (750-unit vs. 3200-unit reel). | No functional difference; selected based on production volume and SMT line feeder compatibility. | Choose SMBJ150AHE3_B/H for low-volume prototyping or small-batch builds requiring shorter reels. |
| SMBJ150AHM3_B/I | Halogen-free, RoHS-compliant variant with identical VWM, VBR, VC, and PPPM; same SMB package and AEC-Q101 rating. | Required where halogen-free compliance is mandated (e.g., EU medical or public infrastructure projects). | Specify SMBJ150AHM3_B/I when environmental compliance documentation (e.g., IPC-1752) must exclude brominated flame retardants. |
Compared with SMBJ150AHE3_B/I, the HE3_B/H offers identical protection performance in smaller reels for flexibility, while HM3_B/I adds halogen-free construction without sacrificing clamping accuracy or thermal robustness - enabling compliance-driven design reuse across automotive, industrial, and regulated markets.
Availability
SMBJ150AHE3_B/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom DC power supplies, automotive engine control units, and industrial PLC I/O modules requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for SMBJ150AHE3_B/I 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, efficiency, and application-specific validation.
The SMBJ series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where clamping precision, thermal resilience, and long-term parametric stability are critical.
FAQ
What is the maximum clamping voltage of SMBJ150AHE3_B/I at its rated peak pulse current?
The SMBJ150AHE3_B/I has a maximum clamping voltage (VC) of 243 V at its specified peak pulse current (IPPM) of 2.5 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees the protected circuit will not experience voltages exceeding 243 V during standardized surge events, making SMBJ150AHE3_B/I suitable for safeguarding 200 V-rated components in industrial and automotive applications.
Is SMBJ150AHE3_B/I qualified for automotive use?
Yes, SMBJ150AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documented in Vishay's official datasheet (Document Number: 88392, Revision: 09-Jan-2024). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating SMBJ150AHE3_B/I for deployment in engine control units, body control modules, and other automotive electronic systems requiring extended reliability.
What does the "B/I" suffix indicate in SMBJ150AHE3_B/I?
The "B/I" suffix in SMBJ150AHE3_B/I specifies packaging configuration: "B" denotes the base revision level, and "I" indicates 13-inch diameter plastic tape-and-reel packaging containing 3200 units. This format is optimized for high-volume SMT assembly lines using standard 13″ feeders, distinguishing it from the "H" variant (7″ reel, 750 units) while retaining identical electrical, thermal, and reliability characteristics for SMBJ150AHE3_B/I.
How does SMBJ150AHE3_B/I differ from bidirectional TVS diodes like SMBJ150CA?
SMBJ150AHE3_B/I is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMBJ150CA is bidirectional with no polarity marking and symmetrical clamping in both directions. SMBJ150AHE3_B/I exhibits forward voltage drop (~3.5 V at 50 A) and is intended for DC rail protection, while SMBJ150CA suits AC-coupled or floating signal lines - making SMBJ150AHE3_B/I unsuitable as a drop-in replacement for SMBJ150CA without circuit redesign.
What is the thermal resistance and how does it affect SMBJ150AHE3_B/I's power handling?
SMBJ150AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" copper pads. This means each watt of sustained power dissipation raises the junction temperature by 100 °C above ambient - limiting continuous power (PD) to 5.0 W at 50 °C ambient. For SMBJ150AHE3_B/I, this underscores that its 600 W rating applies only to short-duration transients; steady-state thermal design must respect RθJA to avoid exceeding the +150 °C TJ max.
SMBJ150AHE3_B/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 2.5A
- 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)
SMBJ150AHE3_B/I FAQ
1.How can I place an order for SMBJ150AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150AHE3_B/I 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 SMBJ150AHE3_B/I reliable?
The price and inventory of SMBJ150AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SMBJ150AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150AHE3_B/I?
SMBJ150AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150AHE3_B/I 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 SMBJ150AHE3_B/I?
For technical support, including SMBJ150AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150AHE3_B/I requirements.
6.How does Aetrix verify that SMBJ150AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SMBJ150AHE3_B/I 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 SMBJ150AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SMBJ150AHE3_B/I?
All SMBJ150AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150AHE3_B/I, 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 SMBJ150AHE3_B/I part is unused and in its original packaging.
Return procedure for SMBJ150AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ150AHE3_B/I Tags
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