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Vishay General Semiconductor - Diodes Division SMBG30-E3/5B
- Part No.:
- SMBG30-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG30-E3/5B.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,663
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Product details
Overview
SMBG30-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the SMBG package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown voltage (VBR) at 1 mA, 48.4 V clamping voltage (VC) at 12.4 A peak pulse current, and 600 W peak pulse power rating with a 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMBG30-E3/5B datasheet, SMBG30-E3/5B pinout, SMBG30-E3/5B application, or SMBG30-E3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, RoHS-compliant packaging details, thermal resistance data, and real-world protection use cases - all confirmed against Vishay Document #88456 and official ordering information.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the DO-215AA (SMBG) package supports automated SMT placement and meets MSL Level 1 reflow requirements up to 260 °C.
It sustains 100 A non-repetitive forward surge current (IFSM) per 8.3 ms half-sine wave and exhibits 100 °C/W junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm copper pads. The device is rated for operation from –55 °C to +150 °C junction temperature and complies with ANSI/IEEE C62.35 surge standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - maximum continuous reverse operating voltage before clamping begins; sets safe DC rail margin for 24 V systems. |
| VBR @ IT = 1 mA | 33.3–36.8 V - guaranteed avalanche onset range; ensures predictable turn-on without premature conduction. |
| VC @ IPPM = 12.4 A | 48.4 V - clamped voltage during 600 W surge; defines worst-case stress on protected ICs or MOSFETs. |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; validates protection against IEC 61000-4-5 Level 4 surges. |
| IFSM | 100 A - single half-sine surge current rating; supports protection against load dump transients in automotive 12 V systems. |
| Junction Temp Range | –55 °C to +150 °C - enables deployment in under-hood automotive and industrial environments without derating. |
| RoHS / AEC-Q101 | E3 suffix = RoHS-compliant commercial grade; HE3 suffix required for AEC-Q101 qualification - SMBG30-E3/5B is not AEC-Q101 qualified. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing leaded case with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage return path; forms shunt path during overvoltage events. |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24 V rail); avalanche conduction occurs when voltage exceeds VBR relative to anode. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable leakage current (<1.0 µA at VWM) and long-term reliability under thermal cycling. |
| 600 W peak pulse power (10/1000 µs) | Validates immunity to high-energy transients including ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 combination wave. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V or 5 V logic. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard lead-free reflow profiles peaking at 260 °C. |
| Automated placement compatibility | Gull-wing leads and standardized DO-215AA footprint support high-yield pick-and-place assembly in volume production. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V power inputs of body control modules (BCMs) and infotainment head units against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between battery rail and input filter capacitor to clamp surges above 36.8 V. Use Value: Limits peak voltage to 48.4 V during 12.4 A transients, preventing damage to upstream DC-DC converters and LDOs rated for ≤60 V input. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure or temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector entry point to suppress ESD and inductive switching noise on signal traces. Use Value: Clamps 600 W surges within nanoseconds while maintaining <1.0 µA leakage at 30 V, preserving signal integrity and measurement accuracy. |
| Consumer Power Adapter Output Protection | Telecom DC Feeder Line Protection |
Use Scenario: Securing 12–24 V outputs of wall-mounted AC/DC adapters used in smart home hubs and network cameras. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after secondary-side rectification to absorb flyback spikes and external surges. Use Value: Withstands 100 A 8.3 ms surge current, enabling robustness against accidental short-circuit recovery and lightning-induced coupling. |
Use Scenario: Protecting -48 V DC feeder lines feeding remote radio units (RRUs) in 4G/5G base stations from induced surges and grounding faults. IC Role / Device Role / Timing Role: Unidirectional TVS connected between feed line and chassis ground to shunt common-mode energy without disrupting bias. Use Value: 30 V VWM provides sufficient margin below nominal -48 V rail magnitude while enabling fast clamping at 48.4 V absolute. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30A-E3/52 | Same VWM (30 V), identical DO-214AA (SMB) package but slightly higher VC (48.8 V @ 12.3 A); lower thermal resistance (RθJA = 85 °C/W). | Preferred where tighter board space allows SMB vs. SMBG footprint; better thermal performance on minimal copper. | Select SMBJ30A-E3/52 if layout uses standard SMB pads and thermal management is constrained. |
| SMCJ30A-E3/57T | Same VWM (30 V), but larger DO-214AB (SMC) package; higher PPPM (1500 W) and lower VC (49.9 V @ 30.1 A). | Suitable for higher-energy threat environments (e.g., railway or heavy industrial mains-connected equipment). | Choose SMCJ30A-E3/57T only when 1500 W surge rating is required and PCB area permits SMC footprint. |
Compared with SMBG30-E3/5B, SMBJ30A-E3/52 offers marginally better thermal dissipation in the same general size class, while SMCJ30A-E3/57T trades footprint for significantly higher surge capacity - neither is pin-compatible due to differing package outlines (DO-215AA vs. DO-214AA vs. DO-214AB), requiring layout revision.
Availability
SMBG30-E3/5B is available at Aetrix Electronics and suitable for automotive power input protection, industrial sensor interface hardening, and telecom DC feeder line safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMBG30-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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SMBG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power, surface-mount transient suppression in space-constrained automotive and industrial systems where robustness and repeatability are critical.
FAQ
What is the maximum clamping voltage of SMBG30-E3/5B under a 600 W surge?
The SMBG30-E3/5B clamps to 48.4 V at its rated peak pulse current of 12.4 A, corresponding to a 600 W surge with a 10/1000 µs waveform. This value is measured and guaranteed per Vishay Document #88456, Table on page 2, and defines the upper voltage limit imposed on protected circuitry during transient events.
Is SMBG30-E3/5B AEC-Q101 qualified?
No, SMBG30-E3/5B is not AEC-Q101 qualified. Per Vishay's ordering information, AEC-Q101 qualification requires the HE3 suffix (e.g., SMBG30AHE3/5B). The E3 suffix denotes RoHS-compliant commercial grade only. For automotive applications requiring AEC-Q101, the SMBG30AHE3/5B variant must be specified.
What is the standoff voltage and breakdown range for SMBG30-E3/5B?
The SMBG30-E3/5B has a reverse standoff voltage (VWM) of 30 V and a minimum/maximum breakdown voltage (VBR) of 33.3 V / 36.8 V at 1 mA test current. These values are confirmed in the "ELECTRICAL CHARACTERISTICS" table on page 2 of Vishay Document #88456 for the SMBG30A device, which corresponds to the SMBG30-E3/5B packaging variant.
What package type does SMBG30-E3/5B use, and what are its key mechanical features?
SMBG30-E3/5B uses the DO-215AA (SMBG) package: a surface-mount gull-wing leaded case with 0.235–0.255 inch length, 0.130–0.155 inch width, and 0.075–0.095 inch height. It features matte tin-plated leads compliant with J-STD-002, MSL Level 1 rating, and UL 94 V-0 molding compound - optimized for automated placement and lead-free reflow.
Can SMBG30-E3/5B be used in bidirectional protection circuits?
No, SMBG30-E3/5B is unidirectional and unsuitable for bidirectional protection. Bidirectional variants in the same family carry the "CA" suffix (e.g., SMBG30CA). The SMBG30-E3/5B has a cathode band marking and conducts only in reverse avalanche mode; using it in AC or symmetrical surge environments would result in forward conduction and failure.
SMBG30-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 11.2A
- 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)
SMBG30-E3/5B FAQ
1.How can I place an order for SMBG30-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG30-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 SMBG30-E3/5B reliable?
The price and inventory of SMBG30-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 SMBG30-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG30-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG30-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG30-E3/5B?
SMBG30-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG30-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 SMBG30-E3/5B?
For technical support, including SMBG30-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG30-E3/5B requirements.
6.How does Aetrix verify that SMBG30-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG30-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 SMBG30-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG30-E3/5B?
All SMBG30-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG30-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 SMBG30-E3/5B part is unused and in its original packaging.
Return procedure for SMBG30-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG30-E3/5B Tags
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