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Vishay General Semiconductor - Diodes Division SMBJ90AHE3_A/H
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- Part No.:
- SMBJ90AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ90AHE3_A/H.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,439
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Product details
Overview
SMBJ90AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping induced voltage transients on power and signal lines. It features 90 V standoff voltage (VWM), 100 V–111 V breakdown range (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 in automotive power supply protection and industrial sensor interface circuits.
For engineers reviewing the SMBJ90AHE3_A/H datasheet, SMBJ90AHE3_A/H pinout, SMBJ90AHE3_A/H application, or SMBJ90AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature limit (TJ max = 150 °C), and compliance with UL 497B surge protector classification.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by overvoltage events exceeding its reverse standoff threshold (VWM = 90 V). Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, ensuring reliable suppression of inductive switching spikes and lightning-induced surges.
Rated for repetitive 10/1000 μs transients at 0.01% duty cycle, it delivers 600 W peak pulse power while maintaining clamping voltage ≤146 V at 4.1 A IPPM. The device is qualified to AEC-Q101 and meets MSL level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 100 V / 111 V at 1 mA test current - defines guaranteed breakdown onset window |
| VC @ IPPM | 146 V at 4.1 A - clamping voltage under standardized 10/1000 μs surge, limiting downstream stress |
| PPPM | 600 W - peak transient energy handling capacity with 10/1000 μs waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
| Polarity | Unidirectional - cathode marked with band; blocks forward conduction, clamps reverse surges |
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; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential side of protected line; conducts during forward-biased fault conditions |
| Cathode | Clamping reference terminal | Marked with band; connects to higher-potential side; initiates avalanche breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| 600 W peak pulse power | Withstands high-energy transients common in 12 V/24 V vehicle power systems without degradation |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during surge events, protecting downstream MOSFETs and ICs |
| MSL Level 1 moisture sensitivity | Enables standard SMT assembly without baking; compatible with lead-free reflow up to 260 °C peak |
| Glass passivated junction | Ensures stable leakage performance and long-term stability under thermal and electrical stress |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground. Use Value: Limits transient voltage to ≤146 V, preventing damage to microcontrollers and CAN transceivers rated for 36 V absolute max. | Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF) clamping element on 0–5 V sensor outputs. Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), preserving signal integrity and ADC accuracy. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Surge Suppression |
Use Scenario: Safeguarding PoE-powered network switches against induced surges on 48 V DC input rails. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input stage before DC-DC converter. Use Value: Absorbs 600 W surge energy without failure, maintaining system uptime during lightning-induced grid disturbances. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Freewheeling path and voltage clamp across motor terminals. Use Value: Handles 100 A non-repetitive forward surge (IFSM), preventing MOSFET drain-source breakdown during commutation. |
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/H | Halogen-free, RoHS-compliant variant with identical electrical specs and AEC-Q101 qualification | No functional difference; selected where halogen-free material compliance is mandated | Choose SMBJ90AHM3_A/H when environmental compliance requires halogen-free packaging |
| SMCJ90AHE3_A/H | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package with higher IPPM (6.5 A) and PPPM (1500 W) | Used where higher surge margin or board-level derating is required; not drop-in due to footprint change | Choose SMCJ90AHE3_A/H only if PCB layout allows larger 7.11 mm × 6.22 mm footprint and higher surge headroom is needed |
Compared with SMBJ90AHE3_A/H, SMBJ90AHM3_A/H offers identical protection performance with halogen-free construction, while SMCJ90AHE3_A/H provides greater surge robustness in a non-pin-compatible package - making SMBJ90AHE3_A/H optimal for space-constrained AEC-Q101 automotive designs requiring 600 W clamping.
Availability
SMBJ90AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ90AHE3_A/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 optoelectronics with emphasis on reliability and application-specific performance.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where high surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ90AHE3_A/H under standard surge conditions?
The SMBJ90AHE3_A/H exhibits a maximum clamping voltage (VC) of 146 V when subjected to its rated peak pulse current (IPPM) of 4.1 A using the standardized 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and ensures predictable voltage limiting during transient events, directly protecting downstream components such as microcontrollers and power MOSFETs in the circuit where SMBJ90AHE3_A/H is deployed.
Is SMBJ90AHE3_A/H qualified for automotive use?
Yes, SMBJ90AHE3_A/H is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control units, body electronics, and infotainment systems. The qualification covers stress tests such as temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This AEC-Q101 status applies specifically to the HE3 suffix variant, and SMBJ90AHE3_A/H maintains full compliance across its specified operating temperature range of -55 °C to +150 °C.
What does the "HE3" suffix indicate in SMBJ90AHE3_A/H?
The "HE3" suffix in SMBJ90AHE3_A/H denotes a RoHS-compliant, AEC-Q101-qualified version with matte tin-plated leads and JESD 201 Class 2 whisker resistance. It distinguishes this variant from commercial-grade E3 (RoHS only) and HM3 (halogen-free + AEC-Q101) versions. The "A/H" revision code indicates the specific manufacturing lot and tape-and-reel packaging configuration (7" reel, 750 units), ensuring traceability and process consistency for SMBJ90AHE3_A/H in production environments.
How does SMBJ90AHE3_A/H compare to bidirectional TVS diodes like SMBJ90CA?
SMBJ90AHE3_A/H is unidirectional and intended for DC line protection where polarity is fixed, whereas SMBJ90CA is bidirectional and suited for AC or floating signal lines. SMBJ90AHE3_A/H has a cathode band marking and conducts forward current up to 100 A (IFSM), while SMBJ90CA lacks polarity marking and supports symmetrical clamping in both directions. Their VWM and VC values differ: SMBJ90CA has VWM = 90 V but VC ≈ 150 V at same IPPM, making SMBJ90AHE3_A/H preferable for polarized 12 V/24 V systems.
What is the thermal resistance of SMBJ90AHE3_A/H, and how does it affect PCB layout?
SMBJ90AHE3_A/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; reducing RθJA requires increasing copper area or adding thermal vias. For sustained power dissipation near its 5.0 W rating, designers must ensure adequate copper pour and avoid routing heat-sensitive components nearby - critical for SMBJ90AHE3_A/H reliability in enclosed automotive enclosures.
SMBJ90AHE3_A/H 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/H FAQ
1.How can I place an order for SMBJ90AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ90AHE3_A/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 SMBJ90AHE3_A/H reliable?
The price and inventory of SMBJ90AHE3_A/H 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/H is usually 5 days.
3.What payment methods are accepted for SMBJ90AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ90AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ90AHE3_A/H?
SMBJ90AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ90AHE3_A/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 SMBJ90AHE3_A/H?
For technical support, including SMBJ90AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ90AHE3_A/H requirements.
6.How does Aetrix verify that SMBJ90AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ90AHE3_A/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 SMBJ90AHE3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ90AHE3_A/H?
All SMBJ90AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ90AHE3_A/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 SMBJ90AHE3_A/H part is unused and in its original packaging.
Return procedure for SMBJ90AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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