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Vishay General Semiconductor - Diodes Division SMBG30C-E3/5B
- Part No.:
- SMBG30C-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG30C-E3/5B.pdf
- Description:
- TVS DIODE 30VWM 53.5VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,602
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Product details
Overview
SMBG30C-E3/5B from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping voltage transients on signal or power lines. It features 30 V stand-off voltage (VWM), 48.4 V maximum clamping voltage (VC) at 12.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O lines against ESD and inductive switching surges.
For engineers reviewing the SMBG30C-E3/5B datasheet, SMBG30C-E3/5B pinout, SMBG30C-E3/5B application, or SMBG30C-E3/5B equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bi-directional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 33.3–36.8 V (min/max) under 1 mA test current, and reverse leakage ≤1.0 µA at 30 V stand-off. Its clamping response is characterized by low incremental surge resistance and sub-nanosecond turn-on time, enabling effective suppression of fast transients such as ISO 7637-2 pulses and IEC 61000-4-2 ESD events.
Thermal performance is defined by junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, supporting operation from –55 °C to +150 °C. The device meets AEC-Q101 stress testing requirements and is rated for repetitive surge duty cycle ≤0.01 %.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected line. |
| VBR (min/max) | 33.3 V / 36.8 V at 1 mA - Ensures reliable conduction onset above normal operating voltage with margin against false triggering. |
| VC @ IPPM | 48.4 V at 12.4 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling capacity; supports robust protection against high-energy transients like load dump spikes. |
| Junction Temp Range | –55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments without derating. |
| Moisture Sensitivity | MSL Level 1 (per J-STD-020) - No floor life limitation; compatible with standard reflow profiles up to 260 °C peak. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead frame with matte tin-plated terminals solderable per J-STD-020 and JESD 22-B102. Bi-directional construction means no polarity marking; cathode band absent.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct equally in either polarity; connects across protected line and ground or between differential lines. |
| Case (exposed pad) | Thermal and mechanical interface | Not electrically connected; provides thermal path to PCB copper and mechanical anchoring during reflow. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems. |
| AEC-Q101 qualified | Validates suitability for automotive applications including engine control units, ADAS sensors, and body electronics modules. |
| Glass passivated junction | Improves long-term stability and reduces parameter drift under thermal cycling and humidity exposure. |
| Low profile DO-215AA package | 0.235–0.255 inch length enables compact layout on space-constrained PCBs while maintaining 5.0 mm × 5.0 mm thermal pad area. |
| RoHS-compliant, whisker-tested (JESD 201 Class 1A) | Ensures solder joint integrity and compliance with environmental regulations for global automotive and industrial markets. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting CAN, LIN, or analog sensor outputs (e.g., pressure, temperature) from ESD and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional clamping element placed between signal line and chassis ground to limit transient overvoltage. Use Value: Limits clamped voltage to ≤48.4 V during 12.4 A surge, preventing damage to 3.3 V or 5 V interface ICs with ±15 kV ESD immunity requirement. |
Use Scenario: Safeguarding PLC digital input channels exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Standoff protector across dry-contact inputs or optocoupler front-end to absorb repetitive 600 W surges. Use Value: Maintains 30 V stand-off while clamping to 48.4 V, ensuring compatibility with 24 V nominal industrial logic levels and avoiding false triggering. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Transient suppression on Ethernet PHY differential pairs or RS-485 bus lines subject to lightning-induced surges. IC Role / Device Role / Timing Role: Symmetrical shunt device placed across twisted-pair lines to equalize voltage excursion during common-mode transients. Use Value: Bi-directional behavior ensures identical clamping in both directions, preserving signal integrity on balanced interfaces without polarity dependency. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices, limiting surge propagation to USB or DC output rails. IC Role / Device Role / Timing Role: Final-stage clamp after rectification and bulk capacitance, absorbing residual switching spikes and ESD events. Use Value: 600 W rating and 48.4 V clamping allow safe operation with 5 V or 12 V regulated outputs, meeting UL 1449 Type 4 secondary surge protection requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | 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 board space allows larger footprint or where tighter thermal management is required. | Select SMBJ30CA if PCB layout permits SMB package and lower junction temperature rise is critical. |
| SMCJ30CA | Same VWM and bi-directionality, but in larger DO-214AB (SMC) package with 1500 W PPPM; VC = 48.4 V @ 24.9 A. | Used when higher surge energy absorption (e.g., ISO 16750-2 long-duration pulses) is required beyond 600 W. | Choose SMCJ30CA only when system-level surge testing exceeds 600 W capability and board space accommodates larger SMC outline. |
Compared with SMBG30C-E3/5B, SMBJ30CA offers marginally better thermal performance in a functionally equivalent package, while SMCJ30CA trades size for 2.5× higher surge capacity - making SMBG30C-E3/5B optimal for space-constrained AEC-Q101 applications needing precise 600 W compliance.
Availability
SMBG30C-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O hardening, and telecom line interface applications requiring stable component supply, AEC-Q101 qualification, and RoHS-compliant manufacturing traceability.
Supply support for SMBG30C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The SMBG series was developed specifically for high-reliability surface-mount transient suppression in automotive and industrial environments, balancing compact size, AEC-Q101 compliance, and repeatable clamping performance under thermal stress.
FAQ
What is the polarity configuration of SMBG30C-E3/5B?
SMBG30C-E3/5B is a bi-directional TVS diode with symmetrical anode/cathode terminals and no polarity marking. Unlike uni-directional variants (e.g., SMBG30A), it conducts identically in both directions, making it suitable for AC-coupled or differential signal lines where voltage polarity reverses. This eliminates orientation concerns during automated placement.
Does SMBG30C-E3/5B meet AEC-Q101 requirements?
Yes, SMBG30C-E3/5B is explicitly AEC-Q101 qualified per Vishay documentation (Document Number 88456, Revision 12-Nov-12). It undergoes stress testing including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101 standards, confirming suitability for automotive under-hood and cabin applications.
What is the maximum clamping voltage for SMBG30C-E3/5B under surge conditions?
The maximum clamping voltage (VC) for SMBG30C-E3/5B is 48.4 V at 12.4 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
How does the DO-215AA (SMBG) package differ from DO-214AA (SMB)?
The DO-215AA (SMBG) package used by SMBG30C-E3/5B has gull-wing leads with tighter pitch and lower profile than DO-214AA (SMB). Key differences include smaller body dimensions (0.235–0.255″ length vs. 0.276″ for SMB) and optimized thermal pad layout for 5.0 mm × 5.0 mm copper areas, enabling higher density layouts without sacrificing thermal performance.
Is SMBG30C-E3/5B compatible with lead-free reflow processes?
Yes, SMBG30C-E3/5B is rated for lead-free reflow with a maximum peak temperature of 260 °C per J-STD-020, and is classified as MSL Level 1 - meaning it may be stored indefinitely at ambient conditions without baking prior to assembly. Its matte tin-plated terminals comply with J-STD-002 and JESD 22-B102 solderability requirements.
SMBG30C-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:
- -
- Bidirectional Channels:
- 1
- 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)
SMBG30C-E3/5B FAQ
1.How can I place an order for SMBG30C-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG30C-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 SMBG30C-E3/5B reliable?
The price and inventory of SMBG30C-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 SMBG30C-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG30C-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG30C-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG30C-E3/5B?
SMBG30C-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG30C-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 SMBG30C-E3/5B?
For technical support, including SMBG30C-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG30C-E3/5B requirements.
6.How does Aetrix verify that SMBG30C-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG30C-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 SMBG30C-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG30C-E3/5B?
All SMBG30C-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG30C-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 SMBG30C-E3/5B part is unused and in its original packaging.
Return procedure for SMBG30C-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG30C-E3/5B Tags
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