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Vishay General Semiconductor - Diodes Division SMBJ90AHE3_A/I
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- Part No.:
- SMBJ90AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90AHE3_A/I.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,447
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Product details
Overview
SMBJ90AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in the SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 90 V standoff voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMBJ90AHE3_A/I datasheet, SMBJ90AHE3_A/I pinout, SMBJ90AHE3_A/I application, or SMBJ90AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, low thermal resistance (RθJL = 20 °C/W), unidirectional polarity with cathode band marking, and compliance with UL 497B for surge protector classification.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 90 V and rapidly transitions to low-impedance conduction above 100 V to limit transient energy. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
The SMBJ90AHE3_A/I is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports operating junction temperatures from –55 °C to +150 °C, and meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse working voltage before leakage exceeds 1 µA; defines safe DC operating margin. |
| VBR (min) | 100 V at 1 mA test current - Guaranteed breakdown initiation threshold; ensures predictable clamping onset. |
| VC (max) | 146 V at IPPM = 4.1 A - Peak clamped voltage during 10/1000 µs transient; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 µs waveform; enables suppression of high-energy transients like ISO 7637-2 Pulse 1/2a. |
| IFSM | 100 A - Single half-sine surge current rating (8.3 ms); validates robustness against motor-switching or load-dump events. |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; enables effective heat dissipation through PCB copper pads without heatsink. |
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. Cathode identified by molded band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-side reference; completes clamping loop during overvoltage event. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to protected line (e.g., 90 V rail); blocks current until VWM exceeded, then conducts to clamp. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for engine control units and ADAS power supplies. |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients such as ISO 16750-2 load dump surges without degradation or failure. |
| Glass passivated junction | Ensures stable VBR and low leakage drift over time and temperature - critical for long-life industrial deployments. |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without moisture sensitivity concerns or baking requirements. |
| UL 497B recognized (QVGQ2) | Meets safety standard for telecom and industrial surge protectors - simplifies system-level certification. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V/24 V vehicle battery input to infotainment head unit exposed to load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp positive-going surges before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤146 V during 600 W transients, preventing latch-up or gate oxide damage in downstream ICs. |
Use Scenario: 4–20 mA current loop interface in factory automation PLC modules subjected to ESD and inductive switching noise. IC Role / Device Role / Timing Role: TVS connected across signal and return lines to absorb fast-rising transients while preserving analog accuracy. Use Value: Clamps sub-100 ns ESD events to <150 V with <1 ns response time, maintaining signal integrity below 0.1% error. |
| Telecom DC Power Feeding | Consumer Power Adapter Output Protection |
|
Use Scenario: -48 V DC feeding line in base station remote radio units encountering lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional SMBJ90AHE3_A/I installed at power entry point to shunt surge energy to chassis ground. Use Value: Withstands 100 A surge current (8.3 ms) and maintains VC ≤146 V, protecting PoE controllers and FETs. |
Use Scenario: Secondary-side 12 V output of wall-mounted AC/DC adapter for smart home hubs, vulnerable to mains coupling and user ESD. IC Role / Device Role / Timing Role: TVS placed across output terminals to prevent overvoltage propagation to USB ports and SoCs. Use Value: Provides 600 W transient immunity with <1 µA leakage at 90 V, ensuring no standby power penalty or thermal drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90AHM3_A/I | Halogen-free variant with identical electrical specs and AEC-Q101 qualification; same SMB package and pinout. | No difference in circuit function or layout; selected when halogen-free compliance is mandated by OEM environmental policy. | Direct material substitution where RoHS + halogen-free requirements apply; no design change needed. |
| SMCJ90AHE3_A/I | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; 1500 W PPPM, higher IPPM (6.4 A), RθJL = 15 °C/W. | Used where higher surge energy absorption is required (e.g., primary-side AC/DC input), but requires larger PCB footprint. | Select when system-level surge testing exceeds 600 W; not drop-in due to different package size and thermal pad layout. |
Compared with SMBJ90AHM3_A/I, the SMBJ90AHE3_A/I offers identical protection performance with standard RoHS compliance but excludes halogen-free certification; compared with SMCJ90AHE3_A/I, it delivers adequate 600 W clamping in a space-constrained SMB footprint, trading peak power headroom for board area efficiency.
Availability
SMBJ90AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feeding requiring stable component supply with AEC-Q101 assurance and UL recognition.
Supply support for SMBJ90AHE3_A/I 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive qualification.
The SMBJ series is engineered for high-reliability transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against ESD, EFT, and surge events is mission-critical.
FAQ
What is the clamping voltage of SMBJ90AHE3_A/I at its rated peak pulse current?
The SMBJ90AHE3_A/I has a maximum clamping voltage (VC) of 146 V at its specified peak pulse current (IPPM) of 4.1 A, measured using the standardized 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuits during transient events and is confirmed in the Vishay datasheet Document Number 88392, page 2. The SMBJ90AHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMBJ90AHE3_A/I qualified for automotive applications?
Yes, SMBJ90AHE3_A/I is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number 88392, page 3, footnote "(1) AEC-Q101 qualified"). This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and surge endurance - validating its suitability for under-hood and powertrain-related applications. The "HE3" suffix denotes RoHS-compliant and AEC-Q101 qualified construction.
What does the "A/I" suffix mean in SMBJ90AHE3_A/I?
The "A/I" suffix in SMBJ90AHE3_A/I indicates packaging configuration: "A" denotes the revision code (per Vishay's ordering nomenclature), and "I" specifies 13-inch diameter plastic tape and reel delivery containing 3200 units. This matches the preferred package code "I" shown in the Ordering Information table on page 3 of Document Number 88392. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification.
How does SMBJ90AHE3_A/I differ from bidirectional variants like SMBJ90CA?
SMBJ90AHE3_A/I is unidirectional, with polarity marked by a cathode band and intended for DC line protection where only positive transients occur. In contrast, SMBJ90CA is bidirectional, symmetrical in both directions, and used for AC or differential signal lines. Electrical differences include doubled ID limit for VWM ≤10 V bidirectional types (not applicable here), and distinct VBR symmetry - SMBJ90AHE3_A/I has no reverse conduction capability beyond its specified leakage at VWM.
What is the thermal resistance from junction to lead (RθJL) for SMBJ90AHE3_A/I?
The SMBJ90AHE3_A/I has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, as published in the Thermal Characteristics table on page 3 of the Vishay datasheet (Document Number 88392). This parameter reflects efficient heat transfer from the silicon die to the PCB copper pads via the leads, enabling reliable operation at full power without external heatsinking - critical for compact automotive and industrial layouts.
SMBJ90AHE3_A/I 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:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMBJ90AHE3_A/I FAQ
1.How can I place an order for SMBJ90AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90AHE3_A/I 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 SMBJ90AHE3_A/I reliable?
The price and inventory of SMBJ90AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ90AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ90AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90AHE3_A/I?
SMBJ90AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90AHE3_A/I 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 SMBJ90AHE3_A/I?
For technical support, including SMBJ90AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90AHE3_A/I requirements.
6.How does Aetrix verify that SMBJ90AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ90AHE3_A/I 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 SMBJ90AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ90AHE3_A/I?
All SMBJ90AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90AHE3_A/I, 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 SMBJ90AHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ90AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ90AHE3_A/I Tags
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