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Vishay General Semiconductor - Diodes Division SMBG9.0-E3/52
- Part No.:
- SMBG9.0-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0-E3/52.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,024
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Product details
Overview
SMBG9.0-E3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for robust overvoltage protection of sensitive electronics. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, 15.4 V clamping voltage (VC) at 39.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the SMBG9.0-E3/52 datasheet, SMBG9.0-E3/52 pinout, SMBG9.0-E3/52 application, or SMBG9.0-E3/52 equivalent, key selection considerations include its AEC-Q101 qualification, 150 °C max junction temperature, 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 unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), critical for protecting MOSFET gates and microcontroller I/O pins against ESD and inductive switching transients.
Thermal performance is defined by RθJA = 100 °C/W (on recommended pad layout) and RθJL = 20 °C/W, enabling reliable operation up to 150 °C junction temperature. The device sustains 100 A non-repetitive forward surge (8.3 ms half-sine) and meets UL 497B recognition (QVGQ2) for telecom and automotive surge protection systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin below system rail voltage. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot and temperature. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamped voltage during 600 W transient; defines maximum stress imposed on protected ICs. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 µs waveform; validates suitability for ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3 surges. |
| IFSM | 100 A - Single half-sine surge current rating (8.3 ms); supports protection of 12 V automotive power inputs against load dump. |
| TJ max | +150 °C - Maximum junction temperature; enables deployment in under-hood automotive modules without derating. |
| MSL Level | Level 1 (J-STD-020) - No floor life limitation; allows indefinite storage and standard reflow without baking. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing lead frame with cathode band marking. Dimensions: 6.48 mm × 3.94 mm × 2.41 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; forms shunt path for reverse transients. |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., 12 V supply or CAN_H); avalanche conduction occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing - required for engine control, ADAS, and body electronics. |
| Glass passivated junction | Eliminates surface contamination sensitivity and improves long-term leakage stability over temperature and humidity stress. |
| 600 W peak pulse power (10/1000 µs) | Supports high-energy transients from relay coil decay or alternator load dump without degradation. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising surges (e.g., EFT bursts), enhancing protection margin for 3.3 V/5 V logic. |
| RoHS-compliant, whisker-tested (JESD 201 Class 1A) | Ensures solder joint integrity in high-vibration environments and compliance with global environmental regulations. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers from load dump and jump-start transients in vehicle body control modules. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between VBAT and GND, clamping surges above 10 V to limit stress on downstream regulators and interface ICs. Use Value: Withstands 100 A surge (8.3 ms) and maintains VC ≤ 15.4 V, preserving functionality of 16 V-rated LDOs and preventing brownout resets. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Bidirectional-capable protection element (configured unidirectionally here) placed across signal and return, suppressing ESD and inductive kickback from solenoid drivers. Use Value: Sub-1 ns response and <1.0 µA leakage at 9.0 V ensure minimal signal distortion and no DC offset error in precision current-loop circuits. |
| Telecom Interface Surge Suppression | Consumer Device USB Port Protection |
|
Use Scenario: Front-end protection of RS-485 transceivers in base station remote radio units exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS connected between differential pair and ground, clamping common-mode transients while preserving signal integrity. Use Value: 600 W rating and 15.4 V clamping meet IEC 61000-4-5 Level 3 (2 kV/12 Ω) requirements without requiring series impedance. |
Use Scenario: Overvoltage safeguard for VBUS line in USB 2.0 host ports of smart home hubs and set-top boxes subjected to hot-plug and ESD events. IC Role / Device Role / Timing Role: Primary shunt protector on 5 V supply rail, activated before internal port controller's internal clamp engages. Use Value: Low VWM (9.0 V) avoids interference with normal 5 V operation; 15.4 V clamping prevents latch-up in USB PHY ICs rated to 6.5 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/52 | Same VWM (9.0 V) and VC (15.4 V), but lower PPPM = 600 W (identical), higher IPPM = 39.0 A (same), yet rated only to 125 °C TJ max vs. 150 °C for SMBG9.0-E3/52. | Lacks AEC-Q101 qualification; not approved for automotive under-hood use. | Select SMBG9.0-E3/52 when automotive qualification or extended temperature operation is mandatory. |
| SMCJ9.0A-E3/52 | Higher PPPM = 1500 W, larger DO-214AB (SMC) package (7.11 mm × 6.22 mm), same VWM/VBR/VC, but 2× footprint area and 3× thermal mass. | Used where higher surge energy absorption is needed (e.g., DC input stages), but incompatible with SMBG land patterns. | Choose SMBG9.0-E3/52 for space-constrained PCBs requiring AEC-Q101 and DO-215AA footprint compatibility. |
Compared with SMBJ9.0A-E3/52 and SMCJ9.0A-E3/52, SMBG9.0-E3/52 uniquely combines AEC-Q101 qualification, 150 °C junction rating, and compact DO-215AA packaging - making it the optimal choice for automotive and high-density industrial designs where reliability and board space are co-constrained.
Availability
SMBG9.0-E3/52 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom infrastructure equipment requiring stable component supply and full traceability.
Supply support for SMBG9.0-E3/52 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-reliability surface-mount transient suppression in automotive and industrial environments, prioritizing AEC-Q101 compliance, thermal robustness, and consistent clamping performance under repetitive surge stress.
FAQ
What is the maximum clamping voltage of SMBG9.0-E3/52 under specified test conditions?
The SMBG9.0-E3/52 has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 39.0 A using a 10/1000 µs waveform. This value is measured at TA = 25 °C with devices mounted on 5.0 mm × 5.0 mm copper pads per terminal, and represents the upper voltage limit imposed on protected circuitry during surge events.
Is SMBG9.0-E3/52 suitable for automotive applications?
Yes, SMBG9.0-E3/52 is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C, making it suitable for under-hood and chassis-mounted automotive applications such as engine control units, body electronics, and ADAS sensor modules. Its RoHS-compliant construction and JESD 201 Class 1A whisker resistance further support long-term reliability in vibration-prone environments.
What does the "E3/52" suffix indicate in SMBG9.0-E3/52?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD 201 Class 1A whisker resistance. The "/52" indicates packaging in 7″ diameter plastic tape and reel, with a base quantity of 750 units per reel - optimized for high-volume SMT assembly lines using standard 8 mm carrier tape.
How does SMBG9.0-E3/52 differ from bi-directional variants like SMBG9.0CA?
SMBG9.0-E3/52 is unidirectional, with polarity marked by a cathode band and intended for DC line protection (e.g., 12 V supply to ground). In contrast, SMBG9.0CA is bi-directional, lacks polarity marking, and protects AC or dual-polarity signals (e.g., RS-485 differential pairs). Their VBR and VC values differ slightly due to symmetrical avalanche design in the CA version.
What is the thermal resistance specification for SMBG9.0-E3/52?
SMBG9.0-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on the minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. Its junction-to-lead resistance (RθJL) is 20 °C/W, supporting efficient heat transfer to PCB copper during repetitive surge events.
SMBG9.0-E3/52 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 35.5A
- 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)
SMBG9.0-E3/52 FAQ
1.How can I place an order for SMBG9.0-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0-E3/52 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 SMBG9.0-E3/52 reliable?
The price and inventory of SMBG9.0-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG9.0-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBG9.0-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0-E3/52?
SMBG9.0-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0-E3/52 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 SMBG9.0-E3/52?
For technical support, including SMBG9.0-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0-E3/52 requirements.
6.How does Aetrix verify that SMBG9.0-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG9.0-E3/52 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 SMBG9.0-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBG9.0-E3/52?
All SMBG9.0-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0-E3/52, 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 SMBG9.0-E3/52 part is unused and in its original packaging.
Return procedure for SMBG9.0-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0-E3/52 Tags
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