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Vishay General Semiconductor - Diodes Division SMBJ150AHE3/52
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- Part No.:
- SMBJ150AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ150AHE3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,129
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Product details
Overview
SMBJ150AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and lightning-induced surges on power and signal lines. It features a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 243 V maximum clamping voltage (VC) at 2.5 A IPPM, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial motor drives and telecom power supplies.
For engineers reviewing the SMBJ150AHE3/52 datasheet, SMBJ150AHE3/52 pinout, SMBJ150AHE3/52 application, or SMBJ150AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with DC power rails or parallel to sensitive inputs. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable clamping under repetitive 0.01% duty-cycle transients.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it meets MSL Level 1 (260 °C peak reflow) and supports automated placement. The HE3 suffix confirms RoHS-compliance and AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 167–185 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 243 V at IPPM = 2.5 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 µs waveform without failure. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - Minimal standby current draw, critical for low-power sensor and battery-backed systems. |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in high-ambient environments like engine control units. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements on standard PCB layout. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, cathode marked by band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop when cathode is tied to protected line. |
| Cathode | High-side connection point | Connected to protected line (e.g., 150 V rail); conducts surge current to ground during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without degradation when mounted per recommended pad layout. |
| Glass passivated junction | Ensures stable VBR over time and temperature, reducing parameter drift in long-life industrial deployments. |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines. |
| UL 497B recognized | Qualified as a listed surge protector (QVGQ2, E136766), supporting safety certification of end equipment. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of gate drivers and bus voltage sensing circuits against inductive kickback from IGBTs and MOSFETs. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between high-side switch drain and ground reference. Use Value: Limits transient voltage to ≤243 V, preventing gate oxide rupture and false triggering in 150 V-rated power stages. |
Use Scenario: Input-stage surge suppression on AC/DC front-end rectifiers handling 150 VDC intermediate bus. IC Role / Device Role / Timing Role: Primary overvoltage clamp on bulk capacitor input, absorbing lightning-induced common-mode surges. Use Value: Maintains system uptime by diverting >2.5 A surge current while holding downstream regulator input within safe limits. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protecting LIN/CAN transceiver power pins and microcontroller I/O from load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS on 12 V supply rail upstream of LDO regulators feeding MCU peripherals. Use Value: Survives ISO 7637-2 Pulse 5a (75 V/350 ms) and meets AEC-Q101 stress test requirements for 1000 cycles. |
Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) clamping device on 150 V isolated sensor excitation lines. Use Value: Preserves measurement accuracy by minimizing standby current injection into precision instrumentation amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52 | No AEC-Q101 qualification; commercial-grade only; identical electrical specs and SMB package. | Not suitable for automotive production; acceptable for industrial prototypes and non-safety-critical consumer designs. | Select when AEC-Q101 is not required and cost optimization is prioritized. |
| SMCJ150AHE3/52 | Higher 1500 W PPPM rating; larger SMC (DO-214AB) package; same VWM/VBR/VC values. | Used where higher surge energy handling is needed (e.g., outdoor telecom cabinets); requires PCB layout change. | Choose when system-level surge testing exceeds 600 W requirements but same clamping behavior is mandatory. |
Compared with SMBJ150AHE3/52, the E3/52 variant lacks automotive qualification but matches all electrical parameters, while the SMCJ150AHE3/52 offers double the surge power in a physically larger footprint - making SMBJ150AHE3/52 optimal for space-constrained AEC-Q101-compliant designs requiring precise 600 W clamping.
Availability
SMBJ150AHE3/52 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply across extended product lifecycles.
Supply support for SMBJ150AHE3/52 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, and protection devices with emphasis on reliability and application-specific performance.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where consistent clamping behavior and long-term stability are essential.
FAQ
What is the clamping voltage of SMBJ150AHE3/52 at its rated peak pulse current?
The SMBJ150AHE3/52 has a maximum clamping voltage (VC) of 243 V at its peak pulse current (IPPM) of 2.5 A, measured using the standardized 10/1000 µs waveform. This value ensures protected circuits remain within safe operating limits during surge events. The SMBJ150AHE3/52 maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is SMBJ150AHE3/52 qualified for automotive applications?
Yes, SMBJ150AHE3/52 is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documentation in Vishay's datasheet revision 09-Jan-2024. This qualification covers stress tests including high-temperature operating life, temperature cycling, and surge endurance - making SMBJ150AHE3/52 suitable for use in engine control units, body electronics, and ADAS power domains.
What is the thermal resistance of SMBJ150AHE3/52, and how does it affect PCB layout?
The SMBJ150AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads per terminal. This value assumes no additional heatsinking; designers must allocate adequate copper area and consider airflow to avoid exceeding the +150 °C maximum junction temperature during repeated surge events. The SMBJ150AHE3/52's thermal performance is validated per JESD51-3 standards.
Does SMBJ150AHE3/52 meet UL safety standards?
Yes, SMBJ150AHE3/52 is Underwriters Laboratories (UL) recognized under standard UL 497B for surge protective devices, with file number E136766. This applies to both unidirectional and bidirectional variants in the SMBJ family. The UL recognition confirms SMBJ150AHE3/52 meets construction, flammability (UL 94 V-0), and performance requirements for use in certified end equipment such as industrial controllers and telecom infrastructure.
How does the SMBJ150AHE3/52 differ from the SMBJ150CA bidirectional variant?
The SMBJ150AHE3/52 is unidirectional with cathode marking and forward conduction capability, while SMBJ150CA is bidirectional and symmetrical - lacking polarity marking and conducting in both directions. Their VWM (150 V), VBR (167–185 V), and VC (243 V) match, but SMBJ150AHE3/52 supports DC-biased applications like power rail clamping, whereas SMBJ150CA suits AC signal line protection. The HE3 suffix on SMBJ150AHE3/52 also confirms AEC-Q101 qualification, which is not guaranteed for all CA variants.
SMBJ150AHE3/52 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ150AHE3/52 FAQ
1.How can I place an order for SMBJ150AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ150AHE3/52 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 SMBJ150AHE3/52 reliable?
The price and inventory of SMBJ150AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ150AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ150AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ150AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ150AHE3/52?
SMBJ150AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ150AHE3/52 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 SMBJ150AHE3/52?
For technical support, including SMBJ150AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ150AHE3/52 requirements.
6.How does Aetrix verify that SMBJ150AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ150AHE3/52 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 SMBJ150AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ150AHE3/52?
All SMBJ150AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ150AHE3/52, 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 SMBJ150AHE3/52 part is unused and in its original packaging.
Return procedure for SMBJ150AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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