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Vishay General Semiconductor - Diodes Division SMCJ90C-E3/57T
- Part No.:
- SMCJ90C-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90C-E3/57T.pdf
- Description:
- TVS DIODE 90VWM 160VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,701
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Product details
Overview
SMCJ90C-E3/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection on signal and power lines. It features a 90 V stand-off voltage (VWM), 1500 W peak pulse power (PPPM), clamping voltage of 146 V at 10.3 A IPPM, 1.0 μA max reverse leakage at VWM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ90C-E3/57T datasheet, SMCJ90C-E3/57T pinout, SMCJ90C-E3/57T application, or SMCJ90C-E3/57T equivalent, this device is selected for high-energy surge suppression in automotive ECUs, industrial sensor interfaces, and telecom line protection where bidirectional clamping, low clamping ratio, and MSL Level 1 reliability are required.
Technical Context
The SMCJ90C-E3/57T operates as a bi-directional avalanche diode with symmetrical breakdown characteristics in both polarities, enabling protection against positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR (100–111 V) and low incremental surge resistance, while the DO-214AB package provides thermal performance with RθJA = 75 °C/W and RθJL = 15 °C/W.
It complies with ANSI/IEEE C62.35 for surge testing, uses a 10/1000 μs waveform per REA definition, and is rated for TJ = –55 °C to +150 °C operation. The device meets JESD201 Class 1A whisker resistance and UL 497B recognition (QVGQ2, E136766) for safety-critical protection circuits.
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 - Breakdown occurs within this range at 1 mA test current, ensuring predictable turn-on |
| VC @ IPPM | 146 V - Clamped voltage at 10.3 A peak pulse current; defines worst-case protected-line voltage during surge |
| PPPM | 1500 W - Peak pulse power handling capability under 10/1000 μs waveform, critical for IEC 61000-4-5 compliance |
| ID @ VWM | 1.0 μA - Ultra-low leakage at rated stand-off, minimizing standby power loss in high-impedance circuits |
| TJ max | +150 °C - Maximum junction temperature rating supports under-hood automotive deployment |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile, RoHS-compliant matte tin-plated leads. No polarity marking - bi-directional symmetry eliminates orientation concerns during automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally when voltage exceeds ±VBR |
| Case (cathode band absent) | Thermal and mechanical interface | DO-214AB body serves as thermal path to PCB copper pads (8.0 mm × 8.0 mm recommended) |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating lines without polarity constraints |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 50 Ω source impedance lines |
| AEC-Q101 qualification | Validated for automotive control units requiring extended temperature, humidity, and lifetime reliability |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass-passivated junction | Ensures stable VBR over time and temperature, reducing parameter drift in harsh environments |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus or 12 V power rail in engine control modules from load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Standby TVS clamp placed directly at connector entry point to shunt >100 A transients before reaching downstream regulators and microcontrollers. Use Value: 146 V clamping limits rail overshoot below 16 V regulator input absolute maximum, preventing latch-up or burnout. | Use Scenario: Safeguarding analog outputs (4–20 mA) and digital I/O of PLC analog input modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Bi-directional transient suppressor bridging signal line to ground, activated within <1 ns to limit voltage excursion during EFT bursts. Use Value: 1.0 μA leakage preserves signal integrity in high-impedance current-loop sensing; DO-214AB footprint enables dense layout near connectors. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Paired SMCJ90C-E3/57T devices (line-to-ground) provide symmetric differential-mode and common-mode clamping. Use Value: 100–111 V VBR range aligns with 90 V VWM to maintain margin above 72 V DC bias while triggering before transceiver damage threshold (~130 V). | Use Scenario: Protecting gate drivers and MCU I/O in smart washing machine motor inverters from commutation spikes generated by BLDC motor windings. IC Role / Device Role / Timing Role: TVS placed across half-bridge driver supply rails to clamp fast-rising dV/dt events from parasitic inductance. Use Value: 1500 W PPPM absorbs energy from repeated 100 ns–1 μs spikes without degradation; AEC-Q101 grade ensures longevity in thermally cycled environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90CA-E3/61 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (150 °C/W) | Suitable for lower-energy surges (IEC 61000-4-2 ESD only); not rated for IEC 61000-4-5 | Select when board space is constrained and surge threat level is limited to ESD or low-current transients. |
| 1.5KE91A | Through-hole TO-218 package, same VWM/VC specs, but no AEC-Q101 qualification or MSL Level 1 rating | Used in legacy industrial power supplies where reflow compatibility and automotive qualification are not required | Choose for cost-sensitive, non-automotive designs where manual assembly or wave soldering is acceptable. |
Compared with SMAJ90CA-E3/61 and 1.5KE91A, the SMCJ90C-E3/57T delivers superior surge energy handling, automotive-grade reliability, and surface-mount process compatibility-making it the preferred choice for next-generation automotive and industrial systems demanding robust, reflow-ready protection.
Availability
SMCJ90C-E3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom infrastructure equipment requiring stable component supply and long-term lifecycle assurance.
Supply support for SMCJ90C-E3/57T 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, efficiency, and application-specific optimization.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in automotive, industrial, and communications systems where failure modes must be mitigated without compromising signal fidelity or thermal stability.
FAQ
What is the clamping voltage of the SMCJ90C-E3/57T and how is it measured?
The SMCJ90C-E3/57T has a maximum clamping voltage (VC) of 146 V, measured at its peak pulse current (IPPM) of 10.3 A using a standardized 10/1000 μs double-exponential surge waveform. This value reflects the actual voltage seen by protected circuitry during worst-case transient events and is guaranteed per ANSI/IEEE C62.35 test conditions. The SMCJ90C-E3/57T maintains this clamping performance across its full operating temperature range.
Is the SMCJ90C-E3/57T suitable for automotive applications?
Yes, the SMCJ90C-E3/57T is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validation against temperature cycling, highly accelerated life testing (HALT), and ESD stress make it appropriate for engine control units, body electronics, and ADAS power domains. The SMCJ90C-E3/57T meets these requirements without derating.
How does the bi-directional design of the SMCJ90C-E3/57T affect PCB layout?
The SMCJ90C-E3/57T has no polarity marking and identical electrical behavior in both directions, eliminating orientation constraints during placement. This simplifies automated assembly and allows flexible routing on differential or AC-coupled lines. Unlike uni-directional TVS diodes, the SMCJ90C-E3/57T requires no cathode band alignment-reducing placement errors and enabling direct replacement in existing bi-directional protection footprints such as DO-214AB.
What is the thermal resistance profile of the SMCJ90C-E3/57T and how should it be applied in layout?
The SMCJ90C-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead (RθJL) of 15 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. To achieve rated power dissipation, PCB layout must replicate this pad area and ensure adequate copper pour connectivity. Exceeding PD = 6.5 W continuously without heatsinking will cause thermal runaway; the SMCJ90C-E3/57T relies on short-duration surge energy absorption rather than steady-state power handling.
Does the SMCJ90C-E3/57T meet UL safety certification requirements?
Yes, the SMCJ90C-E3/57T carries Underwriters Laboratories recognition under UL 497B (QVGQ2) and is listed in UL file E136766 for both uni- and bi-directional transient protectors. This certification covers construction, flammability (UL 94 V-0 molding compound), and surge withstand performance-enabling its use in end-equipment requiring UL listing, including industrial controls and automotive subsystems sold in North America.
SMCJ90C-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 160V
- Current - Peak Pulse (10/1000µs):
- 9.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ90C-E3/57T FAQ
1.How can I place an order for SMCJ90C-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90C-E3/57T 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 SMCJ90C-E3/57T reliable?
The price and inventory of SMCJ90C-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ90C-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ90C-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90C-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90C-E3/57T?
SMCJ90C-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90C-E3/57T 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 SMCJ90C-E3/57T?
For technical support, including SMCJ90C-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90C-E3/57T requirements.
6.How does Aetrix verify that SMCJ90C-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ90C-E3/57T 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 SMCJ90C-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ90C-E3/57T?
All SMCJ90C-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90C-E3/57T, 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 SMCJ90C-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ90C-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90C-E3/57T Tags
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