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Vishay General Semiconductor - Diodes Division SMBJ9.0AHE3_B/H
- Part No.:
- SMBJ9.0AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ9.0AHE3_B/H.pdf
- Description:
- 600W,9.0V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBJ9.0AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping fast-rising ESD and surge transients on power and signal lines. 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 a 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the SMBJ9.0AHE3_B/H datasheet, SMBJ9.0AHE3_B/H pinout, SMBJ9.0AHE3_B/H application, or SMBJ9.0AHE3_B/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (–55 to +150 °C), and compliance with UL 497B for protector classification.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its VBR threshold, limiting transient energy to safe levels for downstream components. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<10 µA at VWM), while the SMB package supports automated placement and meets MSL level 1 per J-STD-020.
The SMBJ9.0AHE3_B/H is rated for 600 W peak pulse power (10/1000 µs), 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits a temperature coefficient of VBR of +0.074 %/°C - enabling predictable performance across operating temperatures up to +150 °C junction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 10.0 V / 11.1 V at IT = 1.0 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamping voltage under full 600 W surge; determines maximum stress imposed on protected circuitry. |
| PPPM | 600 W - Peak pulse power handling capability with 10/1000 µs waveform; validates robustness against lightning-induced surges. |
| IFSM | 100 A - Peak forward surge current rating (8.3 ms half-sine); supports high-energy inductive switching transients. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive and industrial environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on standard PCB pads; informs heatsinking requirements for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band; unidirectional configuration only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance return plane; completes clamping loop during transient events. |
| Cathode | Protected line connection / Surge input | Connected to the line being protected (e.g., 9 V supply rail or sensor output); conducts avalanche current when VREV > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for engine control, body electronics, and ADAS modules. |
| 600 W peak pulse power (10/1000 µs) | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events without degradation when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage (<10 µA), and long-term parametric consistency across life cycles. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture-related popcorning or delamination risk. |
| UL 497B recognized (QVGQ2) | Approved for use in telecom and industrial surge protection assemblies requiring third-party safety certification. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 9 V supply rails feeding microcontrollers and CAN transceivers in vehicle body control modules subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VIN and GND to limit transients to <15.4 V during 10/1000 µs surges. Use Value: Prevents latch-up or permanent damage to 12 V tolerant logic devices by holding rail voltage within safe operating limits during 100 V/50 ms load dump events. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards exposed to field wiring transients. IC Role / Device Role / Timing Role: Standoff-rated TVS (9.0 V) placed across sensor output and ground to clamp induced spikes before reaching ADC front-end. Use Value: Maintains signal integrity below 15.4 V clamping threshold, avoiding saturation or offset errors in 0–10 V sensor outputs during 1 kV EFT bursts. |
| DC-DC Converter Input Protection | USB Port VBUS Line Protection |
|
Use Scenario: Shielding buck converter inputs in industrial HMIs from inductive switching noise generated by relay coils and solenoid drivers. IC Role / Device Role / Timing Role: Fast-response TVS (sub-nanosecond turn-on) shunting surge energy away from converter IC's internal FETs and gate drivers. Use Value: Limits input voltage excursions to ≤15.4 V during 600 W transients, preventing overvoltage shutdown or gate oxide failure in 12 V input converters. |
Use Scenario: Adding secondary-level overvoltage protection on USB 2.0 VBUS lines in embedded host devices where primary protection resides upstream. IC Role / Device Role / Timing Role: Secondary clamping device after fuse or polyfuse, absorbing residual surges that bypass primary TVS or ESD arrays. Use Value: Ensures VBUS stays below 15.4 V during hot-plug ESD events, protecting USB PHY transceivers rated for 5.5 V absolute maximum. |
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 electrical specs and SMB package; RoHS-compliant but not automotive-qualified. | Lacks AEC-Q101 validation; unsuitable for automotive OEM or Tier 1 production; acceptable for industrial/commercial prototypes. | Select when cost sensitivity outweighs automotive qualification requirements and lifecycle assurance is not mandated. |
| SMBJ9.0CAHE3_B/H | Bidirectional variant with identical VWM (9.0 V), VBR (10.0–11.1 V), and VC (15.4 V), but symmetrical clamping in both polarities. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where reverse polarity transients occur. | Choose only if bidirectional protection is needed; not a drop-in replacement due to polarity and circuit topology mismatch. |
Compared with SMBJ9.0AHE3_B/H, the SMBJ9.0A-E3/52 offers identical clamping performance without automotive qualification, while SMBJ9.0CAHE3_B/H provides symmetrical protection at the cost of incompatible unidirectional biasing - making each alternative suitable only for distinct system-level protection architectures.
Availability
SMBJ9.0AHE3_B/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and DC-DC converter designs requiring stable component supply with AEC-Q101 traceability and long-term manufacturing continuity.
Supply support for SMBJ9.0AHE3_B/H 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, precision, and application-specific qualification.
The SMBJ series is part of Vishay's TRANSZORB® TVS platform, engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial automation, and telecom infrastructure where robust overvoltage immunity is critical.
FAQ
What is the maximum clamping voltage of SMBJ9.0AHE3_B/H under surge conditions?
The SMBJ9.0AHE3_B/H has a maximum clamping voltage (VC) of 15.4 V at 39.0 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the upper voltage limit imposed on protected circuitry during worst-case transient events and is measured per ANSI/IEEE C62.35 standards. The SMBJ9.0AHE3_B/H maintains this clamping performance across its full operating temperature range.
Is SMBJ9.0AHE3_B/H qualified for automotive applications?
Yes, SMBJ9.0AHE3_B/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88392. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and surge endurance - validating its suitability for under-hood and chassis-mounted automotive electronics where reliability under thermal and electrical stress is mandatory.
What does the "_B/H" suffix indicate in SMBJ9.0AHE3_B/H?
The "_B/H" suffix in SMBJ9.0AHE3_B/H denotes the packaging configuration: "H" specifies a 7-inch plastic tape-and-reel format with 750 units per reel, and "B" indicates the revision level of the manufacturing lot. This coding aligns with Vishay's ordering information table in document 88392 and confirms compliance with JEDEC-standard tape dimensions and component orientation for automated SMT placement.
How does SMBJ9.0AHE3_B/H differ from SMBJ9.0A-E3/52?
SMBJ9.0AHE3_B/H and SMBJ9.0A-E3/52 share identical electrical characteristics (VWM, VBR, VC, PPPM) and SMB package, but differ in qualification: SMBJ9.0AHE3_B/H is AEC-Q101 qualified and halogen-free RoHS-compliant, whereas SMBJ9.0A-E3/52 is commercial-grade RoHS-compliant only. The HE3 version also uses a different lead finish and whisker testing class (JESD 201 Class 2).
What is the thermal resistance of SMBJ9.0AHE3_B/H, and how does it affect layout design?
The SMBJ9.0AHE3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes no additional heatsinking; designers must allocate sufficient copper area and consider airflow or board layer stacking to maintain TJ ≤ 150 °C during repetitive surge events or elevated ambient temperatures.
SMBJ9.0AHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ9.0AHE3_B/H FAQ
1.How can I place an order for SMBJ9.0AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ9.0AHE3_B/H 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 SMBJ9.0AHE3_B/H reliable?
The price and inventory of SMBJ9.0AHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ9.0AHE3_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ9.0AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ9.0AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ9.0AHE3_B/H?
SMBJ9.0AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ9.0AHE3_B/H 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 SMBJ9.0AHE3_B/H?
For technical support, including SMBJ9.0AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ9.0AHE3_B/H requirements.
6.How does Aetrix verify that SMBJ9.0AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ9.0AHE3_B/H 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 SMBJ9.0AHE3_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ9.0AHE3_B/H?
All SMBJ9.0AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ9.0AHE3_B/H, 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 SMBJ9.0AHE3_B/H part is unused and in its original packaging.
Return procedure for SMBJ9.0AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ9.0AHE3_B/H Tags
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