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Vishay General Semiconductor - Diodes Division SMCJ90AHE3_A/I
- Part No.:
- SMCJ90AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90AHE3_A/I.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,239
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Product details
Overview
SMCJ90AHE3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 90 V standoff voltage (VWM), 100–111 V breakdown range (VBR at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 146 V at 10.3 A, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ90AHE3_A/I datasheet, SMCJ90AHE3_A/I pinout, SMCJ90AHE3_A/I application, or SMCJ90AHE3_A/I equivalent, key selection criteria include its unidirectional polarity, 146 V clamping performance under 10.3 A surge, RoHS-compliant matte tin-plated leads, MSL Level 1 rating, and suitability for automotive-grade ESD/surge protection in engine control units and ADAS sensor interfaces.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 90 V).
Designed for high-energy transients, it sustains 1500 W peak pulse power per 10/1000 µs waveform with low incremental surge resistance and fast response time (<1 ns). Thermal resistance is 75 °C/W (junction-to-ambient) on standard 8 mm × 8 mm copper pads, supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 100 V / 111 V at 1 mA - Confirmed breakdown threshold range defining turn-on consistency |
| VC @ IPPM | 146 V at 10.3 A - Clamping voltage limiting protected circuit stress during full-rated surge |
| PPPM | 1500 W - Peak transient power handling capability under standardized 10/1000 µs waveform |
| IPPM | 10.3 A - Corresponding peak surge current at rated clamping voltage |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ90AHE3_A/I uses the standard SMC (DO-214AB) surface-mount package: two-terminal, unidirectional device with cathode indicated by a band on the body. Leads are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; completes conduction path during avalanche |
| Cathode | High-side input terminal | Connected to protected line; polarity band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, infotainment, and ADAS sensor interfaces |
| 1500 W peak pulse power | Withstands high-energy load dump and ISO 7637-2 Pulse 5a transients without degradation |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime |
| RoHS-compliant & halogen-free option | HE3 suffix denotes RoHS compliance; HM3 variant adds halogen-free construction |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protection of 12 V supply rail against load dump transients (ISO 7637-2 Pulse 5a) in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Shunt TVS diode clamping voltage spikes before they reach microcontroller power pins and CAN transceivers. Use Value: Limits rail voltage to ≤146 V during 10.3 A surges, preventing latch-up or permanent damage to 5 V/3.3 V logic supplies. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between field input and optocoupler input stage. Use Value: Absorbs 1500 W transient energy while maintaining <1 µA leakage at 24 V nominal, ensuring stable logic-level detection. |
| Automotive Camera Sensor Interface | Telecom Power Supply Front-End |
Use Scenario: Reverse polarity and surge protection for FAKRA or HSD cable inputs in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: First-line unidirectional TVS on coaxial power line (e.g., +12 V bias for CCD/CMOS sensors). Use Value: Clamps induced lightning-induced surges to 146 V within nanoseconds, preserving image sensor integrity and ADC reference stability. | Use Scenario: DC input protection for 48 V telecom rectifier modules subjected to AC line transients and hot-swap events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side 48 V bus prior to DC-DC conversion stages. Use Value: Handles repeated 10/1000 µs surges up to 1500 W without parameter drift, supporting GR-1089-CORE compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90A-E3/57T | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (156 V @ 2.6 A) | Not suitable for automotive load dump; limited to low-energy signal-line protection | Select only for space-constrained non-automotive designs where 400 W surge margin suffices |
| SMCJ90AHM3_A/I | Identical electrical specs; halogen-free construction and same AEC-Q101 qualification | No functional difference; differs only in material compliance (halogen-free vs. standard RoHS) | Choose HM3 variant when halogen-free requirement is mandated by OEM or regional environmental regulation |
Compared with SMAJ90A-E3/57T, SMCJ90AHE3_A/I delivers 275% higher surge power handling and tighter clamping-critical for automotive load dump immunity. Against SMCJ90AHM3_A/I, it shares identical protection performance but offers standard RoHS compliance without halogen-free certification overhead.
Availability
SMCJ90AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input protection, ADAS camera interface hardening, and telecom 48 V front-end surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ90AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh environments-including under-hood automotive, industrial automation, and telecom infrastructure.
FAQ
What is the clamping voltage of SMCJ90AHE3_A/I at its rated peak pulse current?
The SMCJ90AHE3_A/I has a maximum clamping voltage (VC) of 146 V when subjected to its rated peak pulse current of 10.3 A under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88394. The clamping performance ensures downstream ICs see no more than 146 V during worst-case surge events.
Is SMCJ90AHE3_A/I suitable for automotive applications?
Yes, SMCJ90AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It meets requirements for engine control units, ADAS cameras, and body electronics exposed to ISO 7637-2 transients. Its 1500 W surge rating, 150 °C max junction temperature, and MSL Level 1 reflow compatibility make SMCJ90AHE3_A/I appropriate for under-hood and cabin-mounted systems.
What does the "_A/I" suffix mean in SMCJ90AHE3_A/I?
The "_A/I" suffix in SMCJ90AHE3_A/I indicates packaging and reel configuration: "A" denotes the revision code (Revision A per Vishay's ordering nomenclature), and "I" specifies delivery in 13-inch diameter plastic tape and reel with a base quantity of 3500 units. This matches the preferred package code "I" in Vishay's official ordering information table (Document 88394, page 3).
How does SMCJ90AHE3_A/I differ from bidirectional SMCJ90CA variants?
SMCJ90AHE3_A/I is unidirectional with cathode marking and conducts only in reverse avalanche mode; SMCJ90CA is bidirectional and symmetrical, suppressing transients in both polarities. The unidirectional version offers lower leakage (<1 µA at 90 V) and is preferred for DC rail protection, whereas bidirectional types suit AC-coupled or floating signal lines. Electrical parameters like VBR and VC are not interchangeable between these configurations.
What is the thermal resistance of SMCJ90AHE3_A/I, and how does it affect layout?
SMCJ90AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To maintain safe junction temperatures during repeated surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks. Reducing pad size or omitting thermal vias increases RθJA, potentially exceeding the 150 °C TJ limit during high-duty-cycle transients.
SMCJ90AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 10.3A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SMCJ90AHE3_A/I FAQ
1.How can I place an order for SMCJ90AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90AHE3_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 SMCJ90AHE3_A/I reliable?
The price and inventory of SMCJ90AHE3_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 SMCJ90AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ90AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90AHE3_A/I?
SMCJ90AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90AHE3_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 SMCJ90AHE3_A/I?
For technical support, including SMCJ90AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90AHE3_A/I requirements.
6.How does Aetrix verify that SMCJ90AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ90AHE3_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 SMCJ90AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ90AHE3_A/I?
All SMCJ90AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90AHE3_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 SMCJ90AHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ90AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90AHE3_A/I Tags
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