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Vishay General Semiconductor - Diodes Division SMBJ9.0HE3/52
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- Part No.:
- SMBJ9.0HE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ9.0HE3/52.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,018
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Product details
Overview
SMBJ9.0HE3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) 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 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 - deployed on power rails and signal lines of industrial sensor interfaces.
For engineers reviewing the SMBJ9.0HE3/52 datasheet, SMBJ9.0HE3/52 pinout, SMBJ9.0HE3/52 application, or SMBJ9.0HE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and RoHS-compliant packaging details for rapid design-in and reliability validation.
Technical Context
The SMBJ9.0HE3/52 operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified VBR window (10.0–11.1 V). Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced transients, and inductive switching spikes on DC power inputs and analog signal paths.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it delivers 600 W peak pulse power handling per JEDEC JESD22-A114F test conditions, with derating above 25 °C ambient per Fig. 2. The device meets MSL Level 1 per J-STD-020 and supports reflow up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before leakage exceeds 10 µA; sets upper limit for protected circuit's normal operating rail. |
| VBR @ IT = 1 mA | 10.0–11.1 V - Measured breakdown threshold defining turn-on onset; ensures reliable triggering above system nominal voltage. |
| VC @ IPPM = 39.0 A | 15.4 V - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs during transient events. |
| PPPM | 600 W - Peak pulse power dissipation capability; defines survivability under standardized lightning/surge waveforms per IEC 61000-4-5. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on minimum pad layout; informs thermal design margin for sustained power dissipation. |
| TJ Range | −55 to +150 °C - Operating and storage junction temperature range; validates suitability for automotive under-hood and industrial environments. |
| AEC-Q101 Qualified | Yes - Certified for automotive-grade reliability per stress test requirements including HTGB, HTRB, and TCT; designated by HE3 suffix. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity marked by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward-biased surges or fault conditions. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 9 V supply rail); initiates avalanche breakdown when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against high-energy transients per IEC 61000-4-5 Level 4 without external series impedance. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control modules and ADAS sensor interfaces requiring long-term reliability. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or damage to downstream 12 V-tolerant ICs. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage (<10 µA at VWM) across temperature and lifetime. |
Applications
| Industrial Sensor Interface Protection | Automotive Power Rail Clamp |
|---|---|
|
Use Scenario: Protecting 9 V supply lines feeding analog front-end circuits in factory-floor pressure/temperature sensors exposed to relay coil flyback and EMI. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy away from precision ADCs and op-amps during inductive load switching. Use Value: Limits voltage excursion to ≤15.4 V during 39 A surges, preserving signal integrity and preventing reset or damage to 12 V-rated microcontrollers. |
Use Scenario: Safeguarding 9–12 V power inputs in automotive body control modules subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp on battery-fed rails, absorbing 600 W surge energy without degradation over 1000+ cycles. Use Value: AEC-Q101 qualification ensures operation from −40 to +125 °C ambient while maintaining <10 µA leakage at 9 V, minimizing standby drain. |
| Consumer USB Power Input Protection | Telecom Line Card Surge Suppression |
|
Use Scenario: Secondary protection on 5–9 V USB-C PD adapter outputs where primary regulation may be compromised during short-circuit recovery. IC Role / Device Role / Timing Role: Fast-acting shunt element that activates within nanoseconds to divert surge current before downstream LDOs or USB controllers fail. Use Value: 15.4 V clamping voltage prevents overvoltage stress on 12 V tolerant USB interface ICs during 10/1000 µs transients up to 39 A. |
Use Scenario: Front-end protection on 9 V bias rails powering telecom optical transceivers and line drivers in outdoor cabinets. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed upstream of DC-DC converters to absorb lightning-induced surges coupled via AC mains or data lines. Use Value: 100 °C/W RθJA allows thermal management on standard FR4 with 0.2" × 0.2" copper pads, enabling compact board layouts without heatsinks. |
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-E3/52 | Commercial-grade (non-AEC-Q101), same VWM, VBR, VC, and PPPM; identical SMB package and pinout. | Lacks automotive qualification; suitable for consumer/industrial use where extended temperature cycling and humidity testing not required. | Select SMBJ9.0A-E3/52 for cost-sensitive non-automotive designs needing identical electrical performance without AEC-Q101 traceability. |
| SMBJ9.0CA-E3/52 | Bidirectional variant with symmetrical VBR (10.0–11.1 V) and same clamping (15.4 V), but no polarity marking and double ID rating per note (3). | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where voltage transients may occur in either polarity. | Choose SMBJ9.0CA-E3/52 only when protecting bidirectional signals; SMBJ9.0HE3/52 is not pin-compatible due to polarity dependency. |
Compared with SMBJ9.0A-E3/52, SMBJ9.0HE3/52 adds AEC-Q101 qualification and tighter process controls for automotive deployment, while SMBJ9.0CA-E3/52 provides polarity-agnostic clamping at the cost of higher leakage in unidirectional DC applications.
Availability
SMBJ9.0HE3/52 is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive power rail protection, and telecom line card surge suppression requiring stable component supply, AEC-Q101 compliance, and consistent 600 W transient handling.
Supply support for SMBJ9.0HE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against ESD, lightning, and inductive switching is mission-critical.
FAQ
What is the clamping voltage of SMBJ9.0HE3/52 at its rated peak pulse current?
The SMBJ9.0HE3/52 has a maximum clamping voltage (VC) of 15.4 V at 39.0 A peak pulse current (IPPM) under 10/1000 µs waveform conditions. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ9.0HE3/52 maintains this clamping performance across its full operating temperature range of −55 to +150 °C.
Is SMBJ9.0HE3/52 qualified for automotive applications?
Yes, SMBJ9.0HE3/52 is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documentation in Vishay's datasheet revision 09-Jan-2024. This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), making SMBJ9.0HE3/52 suitable for under-hood and chassis-mounted automotive electronics.
What is the standoff voltage and breakdown range for SMBJ9.0HE3/52?
The SMBJ9.0HE3/52 has a reverse stand-off voltage (VWM) of 9.0 V and a breakdown voltage (VBR) range of 10.0 V to 11.1 V at 1 mA test current. This ensures reliable non-conduction during normal operation while guaranteeing activation before damaging overvoltage occurs. The SMBJ9.0HE3/52 exhibits <10 µA leakage at VWM, supporting low-power system design.
Does SMBJ9.0HE3/52 have a defined thermal resistance specification?
Yes, the SMBJ9.0HE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads per datasheet Figure 2. This value is critical for estimating junction temperature rise under sustained power dissipation and confirms compatibility with standard FR4 PCB layouts without additional heatsinking.
How does the SMBJ9.0HE3/52 differ from the SMBJ9.0A-E3/52 variant?
The SMBJ9.0HE3/52 differs from SMBJ9.0A-E3/52 solely in qualification level: SMBJ9.0HE3/52 is AEC-Q101 qualified and intended for automotive applications, while SMBJ9.0A-E3/52 is commercial-grade. Electrically and mechanically-including VWM, VBR, VC, PPPM, package, and pinout-they are identical. The SMBJ9.0HE3/52 also carries RoHS compliance and traceability required for Tier 1 automotive supply chains.
SMBJ9.0HE3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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 (SMBJ)
SMBJ9.0HE3/52 FAQ
1.How can I place an order for SMBJ9.0HE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ9.0HE3/52 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 SMBJ9.0HE3/52 reliable?
The price and inventory of SMBJ9.0HE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ9.0HE3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ9.0HE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ9.0HE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ9.0HE3/52?
SMBJ9.0HE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ9.0HE3/52 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 SMBJ9.0HE3/52?
For technical support, including SMBJ9.0HE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ9.0HE3/52 requirements.
6.How does Aetrix verify that SMBJ9.0HE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ9.0HE3/52 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 SMBJ9.0HE3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ9.0HE3/52?
All SMBJ9.0HE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ9.0HE3/52, 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 SMBJ9.0HE3/52 part is unused and in its original packaging.
Return procedure for SMBJ9.0HE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ9.0HE3/52 Tags
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