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Vishay General Semiconductor - Diodes Division SMBG5.0-E3/5B
- Part No.:
- SMBG5.0-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5.0-E3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.6VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,988
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Product details
Overview
SMBG5.0-E3/5B from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. 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), and clamps transients to ≤9.2 V at 65.2 A, making it suitable for protecting 5 V logic interfaces and automotive sensor inputs.
For engineers reviewing the SMBG5.0-E3/5B datasheet, SMBG5.0-E3/5B pinout, SMBG5.0-E3/5B application, or SMBG5.0-E3/5B equivalent, key selection considerations include its DO-215AA (SMBG) package compatibility with automated SMT placement, AEC-Q101 qualification for automotive use, RoHS-compliant matte tin terminations, and verified clamping performance under IEC 61000-4-5 surge conditions.
Technical Context
The SMBG5.0-E3/5B operates as a unidirectional avalanche diode, leveraging glass-passivated silicon junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its clamping behavior is defined by a well-controlled VC–IPPM curve, with thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W enabling reliable operation up to TJ = 150 °C.
It is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 reflow (260 °C peak), and meets UL 497B recognition for protector classification. Polarity is marked by a cathode band; no marking applies to bi-directional variants - but SMBG5.0-E3/5B is explicitly unidirectional per device marking code "KE" and electrical table entry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; sets upper limit for protected circuit's nominal DC rail. |
| VBR @ IT = 10 mA | 6.4–7.07 V - Measured breakdown range confirming tight tolerance for predictable turn-on during transients. |
| VC @ IPPM = 65.2 A | ≤9.2 V - Clamped voltage during 600 W 10/1000 µs surge; ensures downstream ICs (e.g., 5 V microcontrollers) remain below absolute maximum ratings. |
| PPPM | 600 W - Peak pulse power handling capability; validated per IEC 61000-4-5 Level 4 surge immunity requirements. |
| IFSM | 100 A - Single half-sine surge rating (8.3 ms); supports protection against inductive switch-off events in automotive power distribution. |
| TJ max | 150 °C - Maximum junction temperature; enables deployment in under-hood automotive environments without derating. |
| Package | DO-215AA (SMBG) - Standardized surface-mount outline with 0.235–0.255" body length; compatible with IPC-7351B footprint and J-STD-020 reflow profiles. |
Pinout & Package
DO-215AA (SMBG) package: gull-wing surface-mount outline with two terminals; cathode indicated by molded band on one end. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 1A whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes conduction loop during transient clamp event. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., 5 V supply or signal trace); defines polarity and direction of avalanche conduction. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Validated surge energy absorption for IEC 61000-4-5 Level 4 compliance in automotive and industrial systems. |
| AEC-Q101 qualified | Qualified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass passivated junction | Ensures stable leakage current (<800 µA at VWM) and long-term parameter stability across humidity and thermal stress. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without popcorn cracking or delamination risk. |
| UL 497B recognized (QVGQ2) | Meets Underwriters Laboratories requirements for telecom and data-line protectors, supporting safety-certified designs. |
Applications
| Automotive Sensor Protection | 5 V Microcontroller I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output line and ground to shunt induced surges before reaching precision ADC input stages. Use Value: Clamps transients to ≤9.2 V while maintaining <800 µA leakage at 5.0 V, preserving signal integrity and preventing latch-up in 5 V tolerant interfaces. |
Use Scenario: Safeguarding GPIO, UART, and SPI pins of automotive-grade microcontrollers (e.g., NXP S32K, Infineon AURIX) against ESD and board-level surges. IC Role / Device Role / Timing Role: Primary front-end protection element mounted directly at connector or header entry points to intercept fast-rising transients. Use Value: Sub-nanosecond response and low clamping voltage ensure MCU pins remain within safe operating area during ±8 kV contact ESD (IEC 61000-4-2) events. |
| Industrial PLC Digital Input Protection | Consumer USB Power Line Protection |
|
Use Scenario: Shielding 24 V digital input modules in programmable logic controllers from inductive kickback when solenoids or relays de-energize. IC Role / Device Role / Timing Role: Standoff-rated TVS used in series with current-limiting resistor to absorb repetitive 600 W surges without degradation. Use Value: 100 A IFSM rating and 150 °C TJ max support sustained operation in high-temperature control cabinets with minimal derating. |
Use Scenario: Adding robust overvoltage protection to 5 V USB Type-A power delivery paths in smart home hubs and portable chargers. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp placed between VBUS and GND to suppress hot-plug transients and adapter switching noise. Use Value: 9.2 V clamping at 65.2 A prevents damage to USB PD controller ICs while maintaining compatibility with USB 2.0 signal integrity 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 |
|---|---|---|---|
| SMBJ5.0A-E3/5B | Same VWM (5.0 V), identical DO-214AA (SMB) package, but lower PPPM = 600 W same rating yet higher VC = 9.6 V at same IPPM. | Less stringent clamping margin; may not meet tight 5 V rail headroom requirements where <9.2 V clamping is mandatory. | Select SMBG5.0-E3/5B when tighter clamping voltage or DO-215AA mechanical robustness is required. |
| 1.5SMC5.0A | Same VWM/VBR, but larger DO-214AB (SMC) package (7.1 mm × 6.2 mm vs. SMBG's 4.57 mm × 3.94 mm) and higher thermal mass. | Better thermal dissipation for high-duty-cycle surges, but incompatible with space-constrained layouts optimized for SMBG footprints. | Choose SMBG5.0-E3/5B for compact automotive modules where PCB real estate and automated placement are critical. |
Compared with SMBJ5.0A-E3/5B and 1.5SMC5.0A, SMBG5.0-E3/5B delivers superior clamping voltage (≤9.2 V) in the smallest standardized SMT TVS outline (DO-215AA), balancing surge robustness, layout density, and AEC-Q101 compliance for next-generation automotive electronics.
Availability
SMBG5.0-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, 5 V microcontroller I/O protection, and industrial PLC digital input circuits requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG5.0-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, automotive qualification, and high-volume manufacturability.
The SMBG series was developed specifically for space-constrained, high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification with industry-standard DO-215AA packaging and UL recognition.
FAQ
What is the clamping voltage of SMBG5.0-E3/5B at its rated peak pulse current?
The SMBG5.0-E3/5B has a maximum clamping voltage (VC) of 9.2 V when subjected to its peak pulse current (IPPM) of 65.2 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88456 and ensures safe operation for 5 V logic systems. The SMBG5.0-E3/5B maintains this clamping performance across its full operating temperature range.
Is SMBG5.0-E3/5B qualified for automotive applications?
Yes, SMBG5.0-E3/5B is AEC-Q101 qualified, as confirmed in the Vishay datasheet revision 12-Nov-12 (document 88456), footnote (1) under Mechanical Data and Ratings sections. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making SMBG5.0-E3/5B suitable for under-hood and chassis-mounted automotive electronics.
What does the "E3/5B" suffix indicate in SMBG5.0-E3/5B?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD 201 Class 1A whisker resistance. The "/5B" specifies packaging: 3200 units per 13-inch plastic tape-and-reel, per Vishay's Ordering Information table. This differs from "/52", which indicates 750 units on 7-inch reels. The SMBG5.0-E3/5B is not AEC-Q101 qualified unless marked "HE3".
How does SMBG5.0-E3/5B differ from bi-directional variants like SMBG5.0CA?
SMBG5.0-E3/5B is unidirectional, with polarity marked by a cathode band and specified breakdown only in reverse bias; it conducts forward current up to 100 A (IFSM). In contrast, SMBG5.0CA is bi-directional, has no polarity marking, and exhibits symmetric breakdown in both directions - but its VBR starts at 6.4 V minimum, and it lacks IFSM rating. The SMBG5.0-E3/5B is intended for DC rail protection, not AC or differential line protection.
What is the thermal resistance of SMBG5.0-E3/5B, and how does it affect layout design?
SMBG5.0-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, per Vishay's Thermal Characteristics table. To maintain TJ ≤150 °C under 600 W surge, PCB copper pad area must follow the 0.2" × 0.2" (5.0 mm × 5.0 mm) recommendation in Figure 2. Layouts using smaller pads will require significant derating of peak pulse power for SMBG5.0-E3/5B.
SMBG5.0-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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 62.5A
- 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)
SMBG5.0-E3/5B FAQ
1.How can I place an order for SMBG5.0-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5.0-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 SMBG5.0-E3/5B reliable?
The price and inventory of SMBG5.0-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 SMBG5.0-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG5.0-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5.0-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5.0-E3/5B?
SMBG5.0-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5.0-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 SMBG5.0-E3/5B?
For technical support, including SMBG5.0-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5.0-E3/5B requirements.
6.How does Aetrix verify that SMBG5.0-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG5.0-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 SMBG5.0-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG5.0-E3/5B?
All SMBG5.0-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5.0-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 SMBG5.0-E3/5B part is unused and in its original packaging.
Return procedure for SMBG5.0-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5.0-E3/5B Tags
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