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Vishay General Semiconductor - Diodes Division SMCJ90CA-M3/57T
- Part No.:
- SMCJ90CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ90CA-M3/57T.pdf
- Description:
- TVS DIODE 90VWM 146VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,755
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Product details
Overview
SMCJ90CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power rating, 90 V standoff voltage (VWM), and clamping voltage of 146 V at 10.3 A peak pulse current under 10/1000 µs waveform. It protects sensitive signal lines and power rails in automotive sensor interfaces and industrial control I/O.
For engineers reviewing the SMCJ90CA-M3/57T datasheet, SMCJ90CA-M3/57T pinout, SMCJ90CA-M3/57T application, or SMCJ90CA-M3/57T equivalent, this device is selected for robust ESD and lightning surge immunity in bidirectional AC-coupled or floating signal paths where low clamping ratio, halogen-free compliance, and AEC-Q101 qualification readiness are critical design requirements.
Technical Context
The SMCJ90CA-M3/57T operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its breakdown voltage range is 100–111 V at 1 mA test current, with temperature coefficient of 0.106 %/°C - enabling stable clamping across -55 °C to +150 °C junction operation.
It delivers 1500 W peak pulse power per 10/1000 µs waveform on standard 8.0 mm × 8.0 mm copper pads, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), supporting reliable power dissipation in compact PCB layouts without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 90 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 72–90 V nominal systems. |
| VBR (Breakdown Voltage) | 100–111 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 146 V at IPPM = 10.3 A - peak voltage seen by protected circuit during full-rated surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 1500 W - energy-handling capacity for 10/1000 µs surges; supports IEC 61000-4-5 Level 4 (4 kV) compliance with proper layout. |
| ID (Leakage Current) | 1.0 µA max at VWM - ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ Range | -55 °C to +150 °C - enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place. |
Pinout & Package
SMCJ90CA-M3/57T uses the SMC (DO-214AB) package: a two-terminal, bidirectional device with no polarity marking. Both terminals are electrically symmetrical; neither is designated anode or cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Transient Input / Output Node | Connected to line under protection (e.g., CAN_H, RS-485 A, Ethernet PHY differential pair); conducts surge current bidirectionally. |
| Terminal 2 | Transient Input / Output Node | Paired terminal completing the bidirectional clamping path; forms low-impedance shunt to ground or reference during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Equal VBR and VC performance in both directions - eliminates need for polarity-aware placement in AC or floating signal paths. |
| Halogen-Free & RoHS | M3 suffix confirms halogen-free molding compound and RoHS compliance - meets IPC-1752A material declaration and automotive ELV requirements. |
| MSL Level 1 | Rated for reflow up to 260 °C peak - supports single-pass lead-free assembly without moisture sensitivity concerns. |
| Low Incremental Surge Resistance | Enables tight VC/VBR ratio (1.46×) - minimizes voltage overshoot during fast transients compared to higher-ratio suppressors. |
| AEC-Q101 Ready | M3 variant shares same die and construction as HM3 automotive-qualified versions - simplifies qualification path for automotive Tier 2 suppliers. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Bus |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver I/O pins from load dump and ISO 7637-2 pulses in body control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point, shunting surge energy to chassis ground. Use Value: Maintains <146 V clamping during 10/1000 µs 40 A surge - prevents latch-up or gate oxide damage in 5 V/3.3 V transceivers. |
Use Scenario: Safeguarding RS-485 transceivers (e.g., THVD1550) against EFT bursts and lightning-induced surges on factory floor cabling. IC Role / Device Role / Timing Role: Differential-line TVS across A/B bus lines, referenced to local signal ground. Use Value: Sub-1 µs response time limits transient propagation into receiver input stages - preserves data integrity during 1 Mbps communication. |
| Telecom DSL Line Card | Consumer Appliance Motor Control |
|
Use Scenario: Shielding ADSL/VDSL line drivers from induced surges on twisted-pair telephone lines exposed to outdoor environments. IC Role / Device Role / Timing Role: Common-mode TVS between tip/ring and ground, operating in bidirectional mode to handle AC-coupled signals. Use Value: 1500 W rating sustains multiple 10/700 µs surges per ITU-T K.21 - extends field lifetime without derating. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Across motor terminals to clamp inductive kickback, referenced to DC bus ground. Use Value: 90 V VWM aligns with 24–48 V DC bus systems - avoids false triggering during PWM switching while clamping >100 V spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA-M3 | Lower PPPM (600 W), same VWM/VC, SMB package (smaller footprint, higher RθJA). | Preferred for space-constrained consumer electronics where 600 W surge margin suffices. | Select when board area is limited and surge threat level is ≤ IEC 61000-4-5 Level 2. |
| SMCJ90CA-E3/57T | Identical electrical specs; E3 suffix indicates standard RoHS-compliant (non-halogen-free) molding compound. | Used in commercial-grade industrial controls where halogen-free requirement is not mandated. | Choose for cost-sensitive non-automotive applications with identical performance and reliability needs. |
Compared with SMCJ90CA-M3/57T, SMBJ90CA-M3 trades surge capacity for smaller size, while SMCJ90CA-E3/57T offers identical protection with conventional RoHS compliance - enabling selection based on mechanical constraints or material compliance mandates rather than functional compromise.
Availability
SMCJ90CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor protection, industrial RS-485 networks, telecom line cards, and appliance motor control requiring stable component supply and halogen-free compliance.
Supply support for SMCJ90CA-M3/57T 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, power efficiency, and automotive qualification.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where robustness against ISO 7637, IEC 61000-4-5, and lightning surges is mandatory.
FAQ
What is the clamping voltage of SMCJ90CA-M3/57T at its rated peak pulse current?
The SMCJ90CA-M3/57T has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM), measured under the standardized 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuitry during full-rated surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
Is SMCJ90CA-M3/57T suitable for automotive applications?
Yes - the SMCJ90CA-M3/57T uses the same die and construction as Vishay's AEC-Q101 qualified HM3 variants (e.g., SMCJ90CAHM3_X). While the M3 suffix itself denotes halogen-free RoHS compliance rather than certified qualification, its thermal, electrical, and mechanical specifications fully align with automotive environmental stress requirements, making it widely adopted in Tier 1 and Tier 2 automotive designs.
How does the bidirectional nature of SMCJ90CA-M3/57T affect PCB layout?
The SMCJ90CA-M3/57T has no polarity marking and identical electrical behavior in both directions, so PCB layout requires no orientation alignment - either terminal may connect to the line or ground side of the protected node. This simplifies routing in differential or AC-coupled paths like RS-485, CAN, or telecom lines, eliminating risk of incorrect placement during assembly.
What is the thermal resistance of SMCJ90CA-M3/57T, and how does it impact power handling?
The SMCJ90CA-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W. These values assume mounting on 8.0 mm × 8.0 mm copper pads per terminal. The low RθJL enables effective heat transfer to PCB copper, sustaining repeated 1500 W surges without thermal runaway when layout guidelines are followed.
Does SMCJ90CA-M3/57T meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes - the SMCJ90CA-M3/57T is rated MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows unlimited floor life and compatibility with standard lead-free solder profiles without baking, reducing manufacturing complexity and cost in high-volume SMT assembly.
SMCJ90CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ90CA-M3/57T FAQ
1.How can I place an order for SMCJ90CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ90CA-M3/57T 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 SMCJ90CA-M3/57T reliable?
The price and inventory of SMCJ90CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ90CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ90CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ90CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ90CA-M3/57T?
SMCJ90CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ90CA-M3/57T 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 SMCJ90CA-M3/57T?
For technical support, including SMCJ90CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ90CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ90CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ90CA-M3/57T 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 SMCJ90CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ90CA-M3/57T?
All SMCJ90CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ90CA-M3/57T, 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 SMCJ90CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ90CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ90CA-M3/57T Tags
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