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Vishay General Semiconductor - Diodes Division SMBG150A-E3/52
- Part No.:
- SMBG150A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150A-E3/52.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,982
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Product details
Overview
SMBG150A-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), clamping voltage of 243 V at 2.5 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG150A-E3/52 datasheet, SMBG150A-E3/52 pinout, SMBG150A-E3/52 application, or SMBG150A-E3/52 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, junction temperature derating above 25 °C, unidirectional polarity marking (cathode band), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), while low incremental surge resistance enables effective energy absorption during transients induced by inductive switching or ESD events.
The device is rated for TJ = –55 °C to +150 °C, with thermal resistance RθJA = 100 °C/W (on 0.2" × 0.2" pads) and RθJL = 20 °C/W, supporting high-reliability operation in engine control units, power supply inputs, and industrial sensor interfaces where thermal management and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 167 V / 185 V at 1 mA - Ensures consistent avalanche initiation across production lot |
| VC @ IPPM | 243 V at 2.5 A - Clamping voltage limits stress on protected ICs during 10/1000 µs surge |
| PPPM | 600 W - Peak surge power handling capability per JEDEC standard waveform |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms), supports high-energy load dump events |
| TJ max | +150 °C - Enables use in under-hood automotive environments without derating |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Polarity marked by cathode band on one end; anode and cathode terminals are symmetrically arranged along the long axis.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts during overvoltage to shunt current to ground |
| Anode (unmarked end) | Reference/return path | Typically tied to system ground or low-impedance return plane for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events in 12 V/24 V systems |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA) over temperature and lifetime |
| AEC-Q101 qualification | Validates reliability for automotive applications including powertrain and body electronics |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without moisture-induced damage during PCB assembly |
| Low profile SMBG package | Reduces board space vs. SMA/SMB; compatible with high-density automotive PCB layouts |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power input of engine control units (ECUs) against load dump transients up to 120 V. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp surges within 1 ns. Use Value: Limits voltage seen by downstream DC-DC converters and microcontrollers to ≤243 V, preventing latch-up or permanent damage. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (with ground-referenced configuration) suppressing ESD and inductive kickback on signal paths. Use Value: Maintains signal integrity by clamping transients below 243 V while adding <1 pF junction capacitance at 0 V bias. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Protection |
Use Scenario: Guarding primary-side DC bus of PoE-powered line cards against lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary-stage TVS on 48 V input rail, coordinated with upstream fuse and secondary-stage MOVs. Use Value: Absorbs 600 W peak energy per event without degradation, meeting GR-1089-CORE Level 3 surge immunity. | Use Scenario: Protecting AC-DC adapter input rectifier stage from mains-borne surges and capacitor discharge transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed across bulk capacitor to clamp overvoltage during hot-plug or brownout recovery. Use Value: Withstands 100 A non-repetitive forward surge (8.3 ms), ensuring survival during repeated plug-in events. |
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 | Same VWM/VBR/VC specs but lower PPPM = 600 W (same rating), different package (SMB vs. SMBG); slightly higher RθJA (110 °C/W) | Compatible for board-level replacement if pad layout allows; not AEC-Q101 qualified | Select when automotive qualification is not required and existing SMB footprint is preferred. |
| SMCJ150A-E3/52 | Higher PPPM = 1500 W, larger SMC (DO-214AB) package, same VWM/VBR, VC = 243 V at 6.2 A | Used where higher surge margin is needed (e.g., alternator output lines); requires larger PCB area | Choose for enhanced energy handling in high-risk locations, accepting increased footprint and cost. |
Compared with SMBJ150A-E3/52 and SMCJ150A-E3/52, the SMBG150A-E3/52 delivers identical clamping performance in a smaller, AEC-Q101-qualified package-ideal for space-constrained automotive modules where qualification and thermal efficiency (RθJA = 100 °C/W) are prioritized over raw power rating headroom.
Availability
SMBG150A-E3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom line cards, and consumer power adapters requiring stable component supply with full traceability and lifecycle support.
Supply support for SMBG150A-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and automotive-grade validation.
The SMBG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-speed, high-energy transient suppression in harsh environments-including under-hood automotive, industrial controls, and infrastructure equipment.
FAQ
What is the maximum clamping voltage of SMBG150A-E3/52 and under what test condition?
The SMBG150A-E3/52 has a maximum clamping voltage (VC) of 243 V, measured at a peak pulse current (IPPM) of 2.5 A using the standardized 10/1000 µs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and reflects worst-case performance for surge protection design margining.
Is SMBG150A-E3/52 suitable for automotive applications?
Yes, SMBG150A-E3/52 is AEC-Q101 qualified and rated for junction temperatures from –55 °C to +150 °C. Its glass-passivated junction, MSL Level 1 moisture sensitivity, and validated surge performance make it appropriate for engine control units, body control modules, and ADAS power supplies where automotive reliability standards apply.
How does the SMBG package differ from SMB or SMC packages for SMBG150A-E3/52?
The SMBG (DO-215AA) package used by SMBG150A-E3/52 features gull-wing leads with tighter pitch and lower profile than SMB (DO-214AA), and smaller footprint than SMC (DO-214AB). It provides RθJA = 100 °C/W on 5.0 mm × 5.0 mm pads-superior thermal performance versus SMB-and is optimized for high-density automotive PCBs.
What is the reverse leakage current specification for SMBG150A-E3/52 at its rated stand-off voltage?
At VWM = 150 V and TA = 25 °C, the SMBG150A-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage ensures minimal power loss in standby mode and preserves accuracy in high-impedance sensing circuits protected by the device.
Can SMBG150A-E3/52 be used in bidirectional configurations?
No-SMBG150A-E3/52 is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional operation, Vishay offers the SMBG150CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities and no polarity marking on the package.
SMBG150A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG150A-E3/52 FAQ
1.How can I place an order for SMBG150A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150A-E3/52 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 SMBG150A-E3/52 reliable?
The price and inventory of SMBG150A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150A-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG150A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150A-E3/52?
SMBG150A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150A-E3/52 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 SMBG150A-E3/52?
For technical support, including SMBG150A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150A-E3/52 requirements.
6.How does Aetrix verify that SMBG150A-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG150A-E3/52 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 SMBG150A-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG150A-E3/52?
All SMBG150A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150A-E3/52, 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 SMBG150A-E3/52 part is unused and in its original packaging.
Return procedure for SMBG150A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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