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Vishay General Semiconductor - Diodes Division SMBG9.0HE3/5B
- Part No.:
- SMBG9.0HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0HE3/5B.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG9.0HE3/5B from Vishay General Semiconductor is a uni-directional transient voltage suppressor (TVS) diode in DO-215AA (SMBG) package, designed for clamping inductive switching transients on power and signal lines. It features 600 W peak pulse power (10/1000 μs), 10.0–11.1 V breakdown voltage at 1 mA, 9.0 V stand-off voltage, 15.4 V maximum clamping voltage at 39.0 A peak current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG9.0HE3/5B datasheet, SMBG9.0HE3/5B pinout, SMBG9.0HE3/5B application, or SMBG9.0HE3/5B equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, IPPM capability under system-level surge waveforms, RoHS + AEC-Q101 compliance status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS operates as a voltage-clamping protection device triggered by reverse-biased avalanche breakdown above VBR. Its glass-passivated junction ensures stable leakage (<1.0 μA at 9.0 V) and fast response time (<1 ns), enabling suppression of ESD and lightning-induced surges before downstream components fail.
The device is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and derates linearly above 25 °C per Fig. 2; its RθJL = 20 °C/W supports localized heat dissipation into PCB copper, critical for sustained transient handling in automotive power modules and sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 9.0 V - Maximum continuous reverse voltage before significant leakage; sets upper limit for protected line operating voltage. |
| Breakdown Voltage (VBR) | 10.0–11.1 V at 1 mA - Avalanche onset range; defines minimum clamping threshold under transient stress. |
| Clamping Voltage (VC) | 15.4 V at 39.0 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; must be below IC absolute max rating. |
| Peak Pulse Power (PPPM) | 600 W - Sustained energy absorption capability under standardized 10/1000 μs waveform; validates robustness against ISO 7637-2 Pulse 1/2/5a. |
| Junction Temperature Range | –55 °C to +150 °C - Enables deployment in engine bay, ADAS ECUs, and industrial motor drives without derating penalties. |
| Qualification | AEC-Q101 qualified - Confirmed reliability for automotive electronics per stress-test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: DO-215AA (SMBG), surface-mount gull-wing leadframe. Cathode indicated by band marking on case; anode unmarked. 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 |
|---|---|---|
| Cathode (banded end) | Reverse-biased avalanche node | Connected to protected line; conducts when transient exceeds VBR, shunting surge current to ground. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping current path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates immunity to high-energy transients per ISO 7637-2 and IEC 61000-4-5 Level 3/4 without thermal runaway. |
| AEC-Q101 qualification | Confirms suitability for automotive powertrain, body control, and ADAS modules requiring zero-defect reliability across temperature and life cycles. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA) over 15-year field life, even under humidity and bias stress. |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn effect or intermetallic degradation; eliminates pre-bake requirement in SMT lines. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontrollers and CAN transceivers from load dump and alternator ripple. IC Role / Device Role / Timing Role: Clamping transient spikes up to 120 V/100 ms to <15.4 V during ISO 7637-2 Pulse 5a. Use Value: Prevents latch-up or gate oxide damage in MCU I/O and transceiver inputs while maintaining signal integrity during normal operation. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Diverting 4–20 mA loop surges induced by nearby motor switching or ESD discharge. Use Value: Maintains <1.0 μA leakage at 9.0 V, avoiding offset errors in precision 24-bit ADC front-ends. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Shielding USB 2.0 data lines (D+/D−) and VBUS against ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Acting as low-capacitance (<100 pF typical) clamping element placed upstream of USB PHY. Use Value: Limits clamping voltage to ≤15.4 V within <1 ns, preventing PHY latch-up without degrading 480 Mbps signal rise/fall times. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers exposed to lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Bi-directional clamping (when paired with complementary device) across tip/ring to protect differential line driver outputs. Use Value: Withstands 600 W pulses without parameter shift, preserving line driver THD and SNR over 100,000 surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0AHE3/5B | Same VWM/VBR/VC, but SMBJ package (DO-214AA); RθJA = 85 °C/W vs. 100 °C/W. | Higher power density; preferred where board space is constrained but thermal pad area is limited. | Select SMBJ variant if layout allows tighter pitch and higher thermal conductivity is needed for repeated surge duty. |
| 1.5SMC9.0AHE3/A | Same electrical specs, but larger DO-214AB (SMC) package; RθJA = 50 °C/W; 1500 W PPPM. | Higher surge endurance; used in primary protection stages where single-event energy exceeds 600 W. | Choose 1.5SMC9.0AHE3/A for front-end AC/DC input protection where IEC 61000-4-5 Level 4 compliance is mandatory. |
Compared with SMBG9.0HE3/5B, SMBJ9.0AHE3/5B offers better thermal performance in compact layouts, while 1.5SMC9.0AHE3/A provides higher single-pulse energy handling at the cost of footprint-selection depends on surge profile, board thermal design, and placement hierarchy (secondary vs. primary protection).
Availability
SMBG9.0HE3/5B is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, consumer USB peripherals, and telecom line interface circuits requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for SMBG9.0HE3/5B 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 qualification.
The SMBG series targets high-reliability transient suppression in space-constrained automotive and industrial environments, delivering AEC-Q101-compliant TVS performance in the smallest possible surface-mount footprint.
FAQ
What is the clamping voltage of SMBG9.0HE3/5B at its rated peak pulse current?
The SMBG9.0HE3/5B has a maximum clamping voltage (VC) of 15.4 V at 39.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88456 and represents the highest voltage imposed on the protected circuit during full-rated surge conduction. The SMBG9.0HE3/5B maintains this clamping performance across its full operating temperature range (–55 °C to +150 °C) with no derating required up to 25 °C ambient.
Is SMBG9.0HE3/5B suitable for automotive applications?
Yes, SMBG9.0HE3/5B is explicitly AEC-Q101 qualified per Vishay's documentation (Rev. 12-Nov-12, Doc. #88456), with test records covering HTGB, HTRB, temperature cycling, and mechanical shock. Its DO-215AA package meets MSL Level 1, and the HE3 suffix confirms automotive-grade whisker resistance (JESD 201 Class 2). The SMBG9.0HE3/5B is deployed in engine control units, body electronics, and ADAS camera modules where transient immunity and long-term reliability are mandated.
How does the SMBG9.0HE3/5B differ from the SMBG9.0A-E3/5B variant?
The SMBG9.0HE3/5B differs from SMBG9.0A-E3/5B solely in qualification level: the "HE3" suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas "E3" indicates commercial-grade RoHS compliance only. Electrically and physically identical-including VWM = 9.0 V, VBR = 10.0–11.1 V, VC = 15.4 V, and DO-215AA package-the SMBG9.0HE3/5B is the designated part for automotive and industrial applications requiring certified reliability.
What is the thermal resistance of SMBG9.0HE3/5B, and how does it affect layout?
The SMBG9.0HE3/5B 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, as specified in Vishay document 88456. This value requires adherence to the recommended pad layout to avoid thermal saturation during repetitive surges. Layouts using smaller pads or no internal copper planes will see elevated junction temperatures, potentially reducing surge endurance; the SMBG9.0HE3/5B must be placed with adequate thermal relief and adjacent ground pour to maintain rated PPPM.
Can SMBG9.0HE3/5B be used for bi-directional transient protection?
No, SMBG9.0HE3/5B is a uni-directional TVS diode, as confirmed by its "A" suffix (per Vishay's naming convention: "A" = uni-directional, "CA" = bi-directional) and absence of symmetrical VBR min/max values in the electrical table. For bi-directional protection at 9.0 V stand-off, the correct variant is SMBG9.0CAHE3/5B, which exhibits matched breakdown in both polarities. Using SMBG9.0HE3/5B in bi-directional configurations risks forward conduction and permanent damage during negative transients.
SMBG9.0HE3/5B 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG9.0HE3/5B FAQ
1.How can I place an order for SMBG9.0HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0HE3/5B 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 SMBG9.0HE3/5B reliable?
The price and inventory of SMBG9.0HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG9.0HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBG9.0HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0HE3/5B?
SMBG9.0HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0HE3/5B 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 SMBG9.0HE3/5B?
For technical support, including SMBG9.0HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0HE3/5B requirements.
6.How does Aetrix verify that SMBG9.0HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG9.0HE3/5B 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 SMBG9.0HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBG9.0HE3/5B?
All SMBG9.0HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0HE3/5B, 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 SMBG9.0HE3/5B part is unused and in its original packaging.
Return procedure for SMBG9.0HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0HE3/5B Tags
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