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Vishay General Semiconductor - Diodes Division SMBG150A-E3/5B
- Part No.:
- SMBG150A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG150A-E3/5B.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,575
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Product details
Overview
SMBG150A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMBG (DO-215AA) package, rated for 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR at 1 mA), and 600 W peak pulse power (10/1000 μs). It clamps transients to ≤243 V at 2.5 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SMBG150A-E3/5B datasheet, SMBG150A-E3/5B pinout, SMBG150A-E3/5B application, or SMBG150A-E3/5B equivalent, key selection criteria include unidirectional polarity, 150 V VWM, 243 V clamping voltage at IPPM, AEC-Q101 qualification, and SMBG package thermal resistance (RθJA = 100 °C/W).
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, responding to fast-rising transients (sub-nanosecond response time) by entering avalanche breakdown before downstream components are stressed. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable VBR tolerance (±5 %).
Designed for high-reliability environments, it supports repetitive surge duty cycles up to 0.01 %, withstands 100 A IFSM (8.3 ms half-sine), and maintains operation across –55 °C to +150 °C junction temperature range while meeting J-STD-020 MSL Level 1 reflow requirements.
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 reliable turn-on within tight tolerance band under standardized test conditions |
| VC @ IPPM | 243 V at 2.5 A - Clamped voltage during full 600 W transient event; defines maximum stress on protected IC |
| PPPM | 600 W (10/1000 μs) - Peak transient energy absorption capability without failure |
| IFSM | 100 A (8.3 ms half-sine) - Withstands non-repetitive forward surge common in power rail faults |
| TJ max | +150 °C - Enables use in under-hood automotive modules and industrial motor drives |
| Leakage ID | ≤1.0 μA at VWM - Minimizes standby power loss and avoids false triggering in high-impedance circuits |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference | Completes conduction path during transient clamp; must be routed with low-inductance trace to minimize overshoot |
| Cathode | Current exit point in forward bias; connected to protected line | Carries full surge current during clamping; requires robust copper pour and thermal relief for heat dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards |
| Glass passivated junction | Provides stable VBR over lifetime and immunity to humidity-induced parameter drift |
| MSL Level 1 rating | Allows single-reflow assembly without moisture sensitivity concerns; peak reflow temperature up to 260 °C |
| 600 W peak pulse power | Handles ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Combination Wave surges in 12 V/24 V systems |
| Low incremental surge resistance | Minimizes dynamic impedance during clamping, reducing overshoot and improving protection margin |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN/CAN transceivers and microcontrollers on 12 V battery-fed lines subject to load dump and jump-start transients. IC Role / Device Role: Unidirectional TVS placed between supply rail and ground to clamp positive-going surges above 150 V. Use Value: Limits voltage seen by downstream ICs to ≤243 V during 600 W transients, satisfying ISO 16750-2 load dump immunity requirements. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in PLC I/O modules exposed to field wiring inductive kick. IC Role / Device Role: Parallel-connected clamping device on sensor signal line referenced to local ground. Use Value: Prevents damage from ±1 kV EFT bursts and 100 V/1 A surge events while maintaining <1.0 μA leakage at 150 V nominal rail. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding PoE-powered Ethernet switch ports against lightning-induced surges on 48 V DC input rails. IC Role / Device Role: Primary clamping element on DC input before DC/DC converter stage. Use Value: Absorbs 600 W transients with 243 V clamping, enabling compliance with IEC 61000-4-5 Level 3 (2 kV/1 kA) when used with series impedance. | Use Scenario: Protecting gate drivers and MCU I/O in washing machine motor control boards subjected to relay coil flyback and brush-commutator noise. IC Role / Device Role: Unidirectional suppressor across MOSFET source-drain or MCU supply pins. Use Value: Survives 100 A 8.3 ms surge events and operates continuously at +150 °C ambient, matching motor drive thermal profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/5B | Same VWM (150 V), identical SMB package, but lower PPPM = 600 W (same rating), slightly higher VC = 246 V at 2.5 A | Functionally interchangeable in most 12–48 V systems; differs only in minor clamping voltage tolerance | Select SMBJ150A-E3/5B if legacy design uses SMBJ footprint and no AEC-Q101 requirement exists |
| SMAJ150A-E3/5B | Same VWM/VBR specs but in smaller SMA (DO-214AC) package; RθJA = 130 °C/W vs. 100 °C/W for SMBG | Lower power handling margin in sustained surge scenarios due to higher thermal resistance | Choose SMAJ150A-E3/5B only for space-constrained consumer designs where AEC-Q101 is not required |
Compared with SMBJ150A-E3/5B and SMAJ150A-E3/5B, SMBG150A-E3/5B offers superior thermal performance (RθJA = 100 °C/W) and automotive qualification-critical for under-hood or industrial control applications demanding long-term reliability under thermal stress.
Availability
SMBG150A-E3/5B is available at Aetrix Electronics and suitable for automotive power line protection, industrial sensor interface protection, telecom DC input protection, and consumer appliance motor drive protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBG150A-E3/5B 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, precision, and automotive-grade validation.
The SMBG TransZORB® series is engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure where consistent clamping, low leakage, and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SMBG150A-E3/5B at its rated peak pulse current?
The SMBG150A-E3/5B has a maximum clamping voltage (VC) of 243 V when subjected to its peak pulse current (IPPM) of 2.5 A under a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88456) and defines the upper voltage limit imposed on protected circuitry during a full-power transient event. The SMBG150A-E3/5B maintains this clamping performance across its specified operating temperature range.
Is SMBG150A-E3/5B suitable for automotive applications?
Yes, SMBG150A-E3/5B is AEC-Q101 qualified per Vishay documentation, confirming its suitability for automotive applications including engine control units, body electronics, and infotainment power supplies. It meets stringent requirements for temperature cycling, high-temperature reverse bias, and surge endurance. The SMBG150A-E3/5B is explicitly rated for operation from –55 °C to +150 °C and supports load dump immunity per ISO 16750-2 when applied with appropriate layout practices.
What does the "E3/5B" suffix indicate in SMBG150A-E3/5B?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "5B" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 3200 units. This format ensures compatibility with high-speed automated pick-and-place equipment and supports extended production runs. The SMBG150A-E3/5B ordering code aligns with Vishay's standardized packaging nomenclature documented in the SMBG5.0A–SMBG188CA datasheet.
How does SMBG150A-E3/5B differ from bidirectional TVS diodes like SMBG150CA?
SMBG150A-E3/5B is unidirectional and features a cathode band marking, allowing it to conduct only in reverse breakdown-ideal for DC rail protection where polarity is fixed. In contrast, SMBG150CA is bidirectional, symmetric in both directions, and lacks polarity marking. The SMBG150A-E3/5B exhibits forward voltage drop (~3.5 V at 50 A) and supports IFSM = 100 A, whereas SMBG150CA does not specify forward surge rating. Use SMBG150A-E3/5B when protecting polarized supplies; choose SMBG150CA for AC-coupled or differential signal lines.
What is the thermal resistance of SMBG150A-E3/5B, and why does it matter?
The SMBG150A-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts safe power dissipation: at 600 W peak pulse, junction temperature rise is limited to ~25 °C above ambient during short transients. Lower RθJA than alternatives (e.g., SMAJ series at 130 °C/W) enables more robust thermal margin in high-temperature environments-critical for the SMBG150A-E3/5B's use in automotive and industrial applications.
SMBG150A-E3/5B 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-E3/5B FAQ
1.How can I place an order for SMBG150A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG150A-E3/5B 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-E3/5B reliable?
The price and inventory of SMBG150A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG150A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG150A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG150A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG150A-E3/5B?
SMBG150A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG150A-E3/5B 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-E3/5B?
For technical support, including SMBG150A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG150A-E3/5B requirements.
6.How does Aetrix verify that SMBG150A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG150A-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG150A-E3/5B?
All SMBG150A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG150A-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMBG150A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG150A-E3/5B Tags
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