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Vishay General Semiconductor - Diodes Division SMBG9.0-E3/5B
- Part No.:
- SMBG9.0-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0-E3/5B.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG9.0-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping inductive switching transients and ESD on power rails and signal lines. It features 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR at 1.0 mA), 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the SMBG9.0-E3/5B datasheet, SMBG9.0-E3/5B pinout, SMBG9.0-E3/5B application, or SMBG9.0-E3/5B equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, AEC-Q101 qualification status (E3 suffix is commercial grade; HE3 required for automotive), RoHS compliance, and 3200-unit 13" tape-and-reel packaging.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with DC power inputs or parallel to sensitive IC pins. Its glass-passivated junction enables fast response (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 µs transients at 0.01% duty cycle.
Designed for PCB-level surge immunity per IEC 61000-4-5 (Level 4), it delivers 39.0 A peak pulse current (IPPM) while limiting voltage to ≤15.4 V - critical for safeguarding 5 V–12 V logic interfaces, MOSFET gate drivers, and automotive body control modules against load dump and ISO 7637-2 pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins; sets minimum system rail margin for reliable non-conduction during normal operation. |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Verified breakdown threshold range ensures predictable turn-on across production lot and temperature (-55 °C to +150 °C). |
| VC @ IPPM | 15.4 V at 39.0 A - Clamped voltage during 600 W transient defines worst-case overvoltage stress imposed on downstream circuitry. |
| PPPM | 600 W - Peak pulse power handling capability with 10/1000 µs waveform determines survivability against common industrial and automotive surge events. |
| IFSM | 100 A - Non-repetitive forward surge rating (8.3 ms half-sine) supports robustness against accidental polarity reversal or high-energy fault conditions. |
| TJ max | +150 °C - Maximum junction temperature enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
Pinout & Package
DO-215AA (SMBG) surface-mount package: 2-terminal gull-wing leaded case with cathode band marking; 0.235" × 0.155" footprint (5.97 mm × 3.94 mm); meets UL 94 V-0 flammability; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node in unidirectional configuration; forms current path during reverse-biased clamping event. |
| Cathode (banded end) | High-side clamping terminal | Connected to protected line (e.g., 9 V supply rail); initiates avalanche conduction when voltage exceeds VBR, shunting surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | SMBG9.0HE3/5B offers automotive-grade reliability; E3 suffix denotes commercial grade only - critical for BOM segregation in OEM programs. |
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without derating or parallel staging. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 µA at VWM) over 10+ year field life in humid or thermally cycled environments. |
| MSL Level 1 (J-STD-020) | Allows unlimited floor life and reflow up to 260 °C peak - eliminates baking requirements and supports high-throughput SMT assembly. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power rails from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V battery feed and local LDO input, clamping spikes within 1 ns to prevent latch-up or permanent damage. Use Value: Limits clamped voltage to 15.4 V - below absolute maximum ratings of common 16 V-input LDOs and 5 V logic buffers, eliminating need for additional series impedance. |
Use Scenario: Shields 24 V digital input optocoupler circuits from inductive kickback generated by solenoid valve switching in factory automation cabinets. IC Role / Device Role / Timing Role: Mounted directly across input terminals upstream of series current-limiting resistor, absorbing 600 W surge energy before reaching isolation barrier. Use Value: Withstands 39.0 A peak current at 15.4 V clamp, enabling direct interface to 24 V Class 1 PLC inputs without external Zener or RC snubbing networks. |
| Consumer Power Adapter Output | Telecom Ethernet PHY Interface |
Use Scenario: Safeguards USB-C PD controller and buck converter feedback network against ESD (IEC 61000-4-2 ±8 kV contact) and capacitor discharge events during hot-plug insertion. IC Role / Device Role / Timing Role: Placed in parallel with output capacitor on 9 V adapter rail, providing low-capacitance (<100 pF) clamping path with sub-nanosecond response. Use Value: Delivers 15.4 V clamping at 39.0 A while maintaining <1.0 µA leakage at 9.0 V - avoids quiescent current drift in precision voltage references. |
Use Scenario: Protects RJ45 magnetics center-taps and PHY transceiver VDDIO pins from lightning-induced surges (IEC 61000-4-5) on outdoor telecom Ethernet links. IC Role / Device Role / Timing Role: Installed on secondary side of isolation transformer, clamping common-mode transients before they couple into differential data lanes. Use Value: 600 W rating and 15.4 V clamp ensure compliance with GR-1089-CORE Level 3 surge immunity without degrading 100BASE-TX signal integrity or introducing jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A-E3/5B | Same VWM (9.0 V) and VC (15.4 V), but rated for 600 W with larger SMB (DO-214AA) package; 1.5× higher thermal resistance (RθJA = 150 °C/W vs. 100 °C/W). | Preferred where board space allows larger footprint and higher standoff from adjacent components is needed for thermal management. | Select SMBJ9.0A-E3/5B only if layout constraints permit DO-214AA; SMBG9.0-E3/5B provides identical electrical performance in 25% smaller area. |
| SMCJ9.0A-E3/57T | Same VWM/VC specs but rated for 1500 W peak power in larger SMC (DO-214AB) package; RθJA = 40 °C/W enables sustained surge handling. | Required for applications subject to repeated high-energy surges (e.g., outdoor AC-powered equipment) where SMBG9.0-E3/5B may experience thermal fatigue. | Choose SMCJ9.0A-E3/57T when >600 W surge margin is mandated; SMBG9.0-E3/5B remains optimal for cost-sensitive, space-constrained consumer and automotive interior designs. |
Compared with SMBJ9.0A-E3/5B and SMCJ9.0A-E3/57T, SMBG9.0-E3/5B delivers identical clamping performance in the smallest surface-mount TVS package (DO-215AA), enabling higher board density without sacrificing 600 W surge immunity - ideal for compact automotive ECUs and portable electronics.
Availability
SMBG9.0-E3/5B is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital inputs, and consumer power adapter outputs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBG9.0-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, TVS devices, and power MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series targets high-density, high-reliability transient protection in automotive, industrial, and computing applications - engineered for automated SMT assembly, AEC-Q101 qualification readiness, and robust surge survival in harsh environments.
FAQ
What is the polarity configuration of SMBG9.0-E3/5B?
SMBG9.0-E3/5B is a unidirectional transient voltage suppressor diode, meaning it conducts only in reverse bias above its breakdown voltage. The cathode is marked by a band on the package body, and it must be oriented with the banded end toward the protected line and anode toward ground. This configuration ensures clamping action during positive-going transients on the protected rail while blocking normal forward current flow.
Does SMBG9.0-E3/5B meet AEC-Q101 requirements?
No - SMBG9.0-E3/5B carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. For AEC-Q101 qualification, the correct part is SMBG9.0HE3/5B (HE3 suffix). The datasheet explicitly states that HE3 variants meet AEC-Q101, whereas E3 parts are intended for non-automotive applications where extended temperature cycling and failure-in-time (FIT) requirements are not mandated.
What is the maximum clamping voltage of SMBG9.0-E3/5B under surge conditions?
The maximum clamping voltage (VC) of SMBG9.0-E3/5B is 15.4 V, measured at its rated peak pulse current (IPPM) of 39.0 A using the standard 10/1000 µs waveform. This value represents the worst-case voltage seen by downstream circuitry during a full-power transient event and is guaranteed across the operating temperature range of -55 °C to +150 °C.
Can SMBG9.0-E3/5B be used in bi-directional protection circuits?
No - SMBG9.0-E3/5B is strictly unidirectional. Bi-directional variants in the same family carry the "CA" suffix (e.g., SMBG9.0CA). Using SMBG9.0-E3/5B in a bi-directional application would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always verify suffix: "A" = unidirectional, "CA" = bi-directional.
What is the thermal resistance of SMBG9.0-E3/5B, and how does it affect layout?
SMBG9.0-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 the Vishay datasheet. To maintain safe junction temperatures during repetitive surges, designers must provide adequate copper area and avoid excessive trace length or thermal bottlenecks between the SMBG9.0-E3/5B terminals and internal ground/power planes.
SMBG9.0-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):
- 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-E3/5B FAQ
1.How can I place an order for SMBG9.0-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0-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 SMBG9.0-E3/5B reliable?
The price and inventory of SMBG9.0-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 SMBG9.0-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG9.0-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0-E3/5B?
SMBG9.0-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0-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 SMBG9.0-E3/5B?
For technical support, including SMBG9.0-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0-E3/5B requirements.
6.How does Aetrix verify that SMBG9.0-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG9.0-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 SMBG9.0-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG9.0-E3/5B?
All SMBG9.0-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0-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 SMBG9.0-E3/5B part is unused and in its original packaging.
Return procedure for SMBG9.0-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0-E3/5B Tags
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