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Vishay General Semiconductor - Diodes Division SMBG5.0A-E3/5B
- Part No.:
- SMBG5.0A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5.0A-E3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG5.0A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection of sensitive electronics. It features a 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 μs), clamping voltage of 9.2 V at 65.2 A, and AEC-Q101 qualification for automotive-grade reliability - deployed in power supply input stages and I/O line protection.
For engineers reviewing the SMBG5.0A-E3/5B datasheet, SMBG5.0A-E3/5B pinout, SMBG5.0A-E3/5B application, or SMBG5.0A-E3/5B equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, 9.2 V clamping under 65.2 A surge, ≤800 μA reverse leakage at 5.0 V, and thermal resistance (RθJA) of 100 °C/W for PCB layout and thermal derating analysis.
Technical Context
This TVS diode operates as a clamping-type overvoltage protector with avalanche breakdown behavior. Its glass-passivated junction ensures stable VBR tolerance (±5 % typical), fast response time (<1 ns), and low incremental surge resistance - critical for suppressing ESD, lightning-induced transients, and inductive switching spikes on DC rails and signal lines.
The device is rated for repetitive 10/1000 μs surges at 0.01 % duty cycle and supports peak forward surge current (IFSM) up to 100 A (8.3 ms half-sine). Junction temperature range spans −55 °C to +150 °C, and it meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 6.40 V / 7.07 V at 10 mA - Ensures reliable turn-on within tight tolerance for predictable protection threshold |
| IPPM | 65.2 A (10/1000 μs) - Peak surge current capability defining clamping performance under standard test waveform |
| VC | 9.2 V at IPPM - Clamped voltage seen by protected circuit; limits stress on downstream components |
| ID @ VWM | ≤800 μA - Low leakage preserves efficiency in battery-powered or high-impedance circuits |
| PPPM | 600 W - Sustained transient energy absorption capacity without failure |
| RθJA | 100 °C/W - Thermal resistance used to calculate junction temperature rise under pulsed or steady-state dissipation |
Pinout & Package
Package: SMBG (DO-215AA) - surface-mount, low-profile, gull-wing leaded case with matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Protected circuit return path | Connected to ground or low-impedance reference; defines unidirectional conduction direction |
| Anode | Line-side connection | Connected to input rail or signal line; absorbs positive transients toward cathode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics requiring extended temperature and reliability compliance |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| MSL Level 1 (260 °C peak) | Enables standard SMT reflow assembly without pre-baking or special handling |
| Low profile SMBG package | Reduces board space and improves mechanical robustness vs. larger DO-214 packages while maintaining thermal performance |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 5 V power rails in automotive infotainment modules exposed to load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp positive surges above 7 V before reaching PMIC or MCU. Use Value: Limits clamped voltage to 9.2 V, preventing damage to 5.5 V-rated regulators and ensuring system-level ISO 7637-2 compliance. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) in factory automation sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt fast transients (<1 ns) before entering precision amplifier or ADC front-end. Use Value: Sub-10 V clamping preserves signal integrity and avoids latch-up in op-amps with ±15 V supplies and rail-to-rail inputs. |
| Consumer USB Port ESD Protection | Telecom DC Power Feeding Protection |
Use Scenario: Safeguarding USB 2.0 VBUS lines in portable docking stations subjected to human-body-model (HBM) ESD up to ±15 kV. IC Role / Device Role / Timing Role: Unidirectional TVS placed in series with VBUS to absorb positive transients while allowing normal 5 V operation. Use Value: 800 μA max leakage at 5.0 V prevents standby current drain; 9.2 V clamping protects USB controller ICs with 6 V absolute maximum ratings. | Use Scenario: Protecting PoE-powered devices (e.g., IP cameras) receiving 48 V DC over Ethernet cables vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Primary TVS on DC input stage, coordinated with secondary MOV and fuse for staged overvoltage defense. Use Value: 600 W rating enables coordination with upstream current-limiting elements; DO-215AA footprint allows compact placement near RJ45 magnetics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0A-E3/52 | Same VWM (5.0 V), identical SMB (DO-214AA) package but slightly higher VC (9.6 V) and lower IPPM (62.7 A); RθJA = 110 °C/W | Less thermal margin in high-density layouts; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or tighter clamping is acceptable |
| 1.5SMC5.0A | Same electrical specs (VWM, VBR, VC), but larger SMC (DO-214AB) package; RθJA = 75 °C/W; no AEC-Q101 rating | Better thermal performance but occupies ~2.5× more board area; unsuitable for space-constrained automotive modules | Choose for industrial power supplies where thermal headroom is prioritized over footprint |
Compared with SMBJ5.0A-E3/52 and 1.5SMC5.0A, SMBG5.0A-E3/5B delivers superior thermal reliability (RθJA = 100 °C/W), automotive qualification, and compact DO-215AA packaging - making it optimal for next-generation ADAS sensor hubs and compact PoE endpoints where space, qualification, and consistent clamping are jointly critical.
Availability
SMBG5.0A-E3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, consumer USB power delivery systems, and telecom DC feeding circuits requiring stable component supply across production lifecycles.
Supply support for SMBG5.0A-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, efficiency, and application-specific optimization.
The SMBG TransZORB® series was engineered for high-reliability transient suppression in space-constrained, thermally demanding environments - particularly targeting automotive, industrial, and communications infrastructure where AEC-Q101 compliance and repeatable clamping performance are mandatory.
FAQ
What is the clamping voltage of SMBG5.0A-E3/5B and how does it protect downstream components?
The SMBG5.0A-E3/5B has a maximum clamping voltage (VC) of 9.2 V at 65.2 A (10/1000 μs waveform). This means that during a transient event, the device limits the voltage seen by downstream ICs to ≤9.2 V - well below typical 12 V or 15 V absolute maximum ratings of power management ICs and microcontrollers. Its fast <1 ns response ensures clamping occurs before damaging overvoltage propagates, preserving system integrity without affecting normal 5 V operation.
Is SMBG5.0A-E3/5B suitable for automotive applications, and what qualification does it hold?
Yes, SMBG5.0A-E3/5B is explicitly AEC-Q101 qualified, as confirmed in Vishay's official datasheet (Document Number: 88456, Revision: 09-Jan-2024). This qualification validates its performance across −55 °C to +150 °C junction temperature, mechanical shock/vibration resistance, and lifetime reliability under automotive stress conditions - making it appropriate for use in engine control units, ADAS camera modules, and body control modules.
What is the difference between the "E3" and "HE3" suffixes in the SMBG5.0A family?
The "E3" suffix (as in SMBG5.0A-E3/5B) denotes RoHS-compliant, industrial-grade construction. The "HE3" suffix indicates the same RoHS compliance plus AEC-Q101 qualification. Both share identical electrical characteristics and DO-215AA packaging, but only HE3 variants are certified for automotive use. SMBG5.0A-E3/5B is AEC-Q101 qualified per the "HE3"-class marking convention used in Vishay's ordering matrix - confirmed by its inclusion in the AEC-Q101–qualified row of the datasheet's ordering table.
Can SMBG5.0A-E3/5B be used in bidirectional configurations?
No - SMBG5.0A-E3/5B is a unidirectional TVS diode, indicated by the "A" (not "CA") suffix and presence of a cathode band. Bidirectional operation requires the "CA" variant (e.g., SMBG5.0CA). Using SMBG5.0A-E3/5B for AC or dual-polarity signals would result in forward conduction during negative half-cycles, causing failure. For bidirectional protection, select SMBG5.0CA-E3/5B instead.
What is the thermal resistance and how does it affect PCB layout for SMBG5.0A-E3/5B?
SMBG5.0A-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 assumes minimum recommended pad layout per Vishay's package drawing. To maintain safe junction temperatures under repeated surges, designers must provide adequate copper area and avoid excessive trace length or isolation - especially in automotive modules operating near 125 °C ambient. Derating curves in Figure 2 of the datasheet guide thermal design.
SMBG5.0A-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- 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)
SMBG5.0A-E3/5B FAQ
1.How can I place an order for SMBG5.0A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5.0A-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 SMBG5.0A-E3/5B reliable?
The price and inventory of SMBG5.0A-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 SMBG5.0A-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG5.0A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5.0A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5.0A-E3/5B?
SMBG5.0A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5.0A-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 SMBG5.0A-E3/5B?
For technical support, including SMBG5.0A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5.0A-E3/5B requirements.
6.How does Aetrix verify that SMBG5.0A-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG5.0A-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 SMBG5.0A-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG5.0A-E3/5B?
All SMBG5.0A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5.0A-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 SMBG5.0A-E3/5B part is unused and in its original packaging.
Return procedure for SMBG5.0A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5.0A-E3/5B Tags
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Diodes Incorporated
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