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Vishay General Semiconductor - Diodes Division SMBJ90HE3/5B
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- Part No.:
- SMBJ90HE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90HE3/5B.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,590
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Product details
Overview
SMBJ90HE3/5B 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 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed on power rails and signal lines in industrial motor drives and telecom interface circuits.
For engineers reviewing the SMBJ90HE3/5B datasheet, SMBJ90HE3/5B pinout, SMBJ90HE3/5B application, or SMBJ90HE3/5B 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 packaging details for tape-and-reel delivery (13" reel, 3200 pcs).
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to divert transient energy away from protected circuitry. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and fast response time (<1.0 ps), critical for suppressing ESD and inductive switching spikes.
The SMBJ90HE3/5B is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports automated SMT placement, and meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C). Its cathode-band polarity marking aligns with standard SMB layout conventions for unidirectional devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC working margin. |
| VBR (min) | 100 V - Minimum breakdown voltage at 1.0 mA test current; guarantees reliable turn-on above normal operating voltage. |
| VC (max) | 146 V - Maximum clamped voltage at 4.1 A IPPM; determines worst-case stress imposed on downstream ICs during transients. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (max) | 1.0 µA - Maximum reverse leakage at VWM; ensures minimal standby power loss and signal integrity in high-impedance nodes. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs PCB thermal design for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events. |
| Cathode | Protected line connection / transient sink | Connected to the line being protected (e.g., 90 V rail); conducts avalanche current when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control and ADAS power domains. |
| 600 W peak pulse power | Withstands 10/1000 µs surges up to 4.1 A without degradation - meets IEC 61000-4-5 surge immunity requirements for industrial equipment. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients - improves clamping precision and reduces stress on downstream MOSFETs or microcontrollers. |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at peak 260 °C - eliminates moisture sensitivity concerns in high-volume SMT assembly. |
| Glass passivated junction | Ensures stable VBR and low leakage across temperature and lifetime - critical for long-term protection integrity in sealed enclosures. |
Applications
| Industrial Motor Drives | Telecom Interface Protection |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback sensing lines from inductive kickback during IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between gate driver output and power MOSFET gate, referenced to source. Use Value: Limits transient voltage to ≤146 V, preventing gate oxide rupture while maintaining <1.0 µA leakage at 90 V nominal rail. |
Use Scenario: Safeguarding RS-485 transceivers and Ethernet PHYs against lightning-induced surges on field wiring in base stations and remote radios. IC Role / Device Role / Timing Role: Primary line-side TVS on differential bus lines (A/B), mounted adjacent to connector with short trace routing. Use Value: Clamps 600 W surges within nanoseconds, preserving signal integrity and enabling compliance with ITU-T K.20/21 immunity standards. |
| Automotive Body Control Modules | Power Supply Input Stage |
|
Use Scenario: Shielding LIN bus transceivers and microcontroller I/Os from load dump and jump-start transients in BCMs. IC Role / Device Role / Timing Role: AEC-Q101-qualified unidirectional TVS on 12 V supply input and LIN signal lines, upstream of LDO regulators. Use Value: Withstands 100 A surge (8.3 ms) and operates from –55 to +150 °C - fulfills ISO 7637-2 Pulse 5a/b requirements. |
Use Scenario: Front-end overvoltage suppression for AC/DC and DC/DC converters in industrial power supplies. IC Role / Device Role / Timing Role: Standoff-rated TVS on primary-side DC bus (e.g., after rectifier, before PFC stage) to absorb switching transients. Use Value: 90 V VWM allows compatibility with 72–96 V nominal inputs; 146 V VC prevents cascaded failure of downstream MOSFETs and controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90A-E3/5B | Commercial-grade (non-AEC-Q101), identical electrical specs and SMB package. | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle systems. | Select when cost-sensitive industrial or consumer designs do not require automotive reliability validation. |
| SMAJ90AHE3/A | Same VWM/VBR/VC ratings but in smaller SMA (DO-214AC) package; lower PPPM (400 W) and higher RθJA (140 °C/W). | Reduced surge handling and thermal performance limits use to lower-energy transients or well-cooled layouts. | Choose only if board space is constrained and peak surge energy remains below 400 W capability. |
Compared with SMBJ90A-E3/5B, the SMBJ90HE3/5B adds AEC-Q101 qualification without sacrificing electrical performance; versus SMAJ90AHE3/A, it delivers 50 % higher surge power and 29 % better thermal resistance - making it the preferred choice for demanding automotive and industrial power-line protection.
Availability
SMBJ90HE3/5B is available at Aetrix Electronics and suitable for industrial motor drives, telecom interface protection, and automotive body control modules requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMBJ90HE3/5B 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness, AEC-Q101 compliance, and precise clamping are mandatory.
FAQ
What is the clamping voltage of SMBJ90HE3/5B at its rated peak pulse current?
The SMBJ90HE3/5B has a maximum clamping voltage (VC) of 146 V at its specified peak pulse current (IPPM) of 4.1 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay SMBJ5.0A–SMBJ188A datasheet revision 09-Jan-2024, page 2.
Is SMBJ90HE3/5B qualified for automotive applications?
Yes, SMBJ90HE3/5B is AEC-Q101 qualified, as indicated by the "HE3" suffix per Vishay's ordering nomenclature. This qualification covers temperature cycling, highly accelerated life testing, and ESD robustness - confirming suitability for automotive body electronics, infotainment power rails, and ADAS sensor interfaces per the datasheet footnote on page 3.
What is the thermal resistance of SMBJ90HE3/5B, and how does it affect PCB layout?
The SMBJ90HE3/5B 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 minimal copper area; increasing pad size or adding thermal vias lowers effective RθJA and improves sustained surge handling - critical for repeated transient exposure in industrial power supplies.
How does the leakage current of SMBJ90HE3/5B compare to its stand-off voltage?
At its 90 V stand-off voltage (VWM), the SMBJ90HE3/5B exhibits a maximum reverse leakage current (ID) of 1.0 µA at 25 °C, per the Electrical Characteristics table on page 2 of the datasheet. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes quiescent power loss in battery-backed systems.
What packaging format is used for SMBJ90HE3/5B, and what is the reel quantity?
SMBJ90HE3/5B is supplied in 13-inch diameter plastic tape-and-reel packaging with a base quantity of 3200 pieces per reel, denoted by the "/5B" suffix in the part number. This format supports high-speed automated pick-and-place assembly and complies with EIA-481 standards for SMT manufacturing.
SMBJ90HE3/5B 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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 160V
- Current - Peak Pulse (10/1000µs):
- 3.8A
- 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)
SMBJ90HE3/5B FAQ
1.How can I place an order for SMBJ90HE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90HE3/5B 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 SMBJ90HE3/5B reliable?
The price and inventory of SMBJ90HE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90HE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ90HE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90HE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90HE3/5B?
SMBJ90HE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90HE3/5B 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 SMBJ90HE3/5B?
For technical support, including SMBJ90HE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90HE3/5B requirements.
6.How does Aetrix verify that SMBJ90HE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ90HE3/5B 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 SMBJ90HE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ90HE3/5B?
All SMBJ90HE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90HE3/5B, 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 SMBJ90HE3/5B part is unused and in its original packaging.
Return procedure for SMBJ90HE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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