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Vishay General Semiconductor - Diodes Division SMCJ9.0CA-M3/57T
- Part No.:
- SMCJ9.0CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0CA-M3/57T.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,641
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Product details
Overview
SMCJ9.0CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on signal or power lines. It features a 9.0 V standoff voltage (VWM), 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the SMCJ9.0CA-M3/57T datasheet, SMCJ9.0CA-M3/57T pinout, SMCJ9.0CA-M3/57T application, or SMCJ9.0CA-M3/57T equivalent, key selection criteria include bidirectional clamping capability, halogen-free RoHS-compliant construction (M3 suffix), 150 °C max junction temperature, and compatibility with automated SMT placement on standard PCB pad layouts per JEDEC DO-214AB footprint.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional CA construction, enabling protection of AC-coupled or differential signal lines without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low incremental surge resistance, critical for consistent clamping under repetitive transient events.
The device meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak, supports 1000 µA max reverse leakage at VWM, and exhibits a +0.074 %/°C temperature coefficient of VBR, indicating predictable voltage drift across operating temperature range (–55 °C to +150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for protected circuitry. |
| VBR min/max | 10.0 V / 11.1 V at IT = 1.0 mA - Verified breakdown threshold range ensuring reliable turn-on during overvoltage events. |
| VC | 15.4 V at IPPM = 97.4 A - Clamped voltage seen by downstream components during 1500 W transient; limits stress on sensitive nodes. |
| PPPM | 1500 W - Peak pulse power handling capacity with 10/1000 µs waveform; determines survivability against lightning or ESD surges. |
| TJ max | +150 °C - Maximum junction temperature rating; enables operation in under-hood automotive or high-ambient industrial environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad thermal design; supports automated assembly and thermal dissipation. |
Pinout & Package
SMCJ9.0CA-M3/57T uses the SMC (DO-214AB) package: a two-terminal, non-polarized surface-mount case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no cathode/anode marking; terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as input/output for transient energy; symmetrical conduction eliminates polarity dependency in layout. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired with Terminal 1 to form a balanced clamping path; requires equal copper pad area (8.0 mm × 8.0 mm) per datasheet fig. 2 for rated IPPM. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity constraints. |
| 1500 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems without degradation. |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance requirements for industrial and automotive end equipment while maintaining full electrical performance. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies manufacturing logistics and reduces process risk. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 120 V and 100 ms duration. IC Role / Device Role / Timing Role: Primary clamping device placed at power entry point to limit voltage seen by DC-DC converters and microcontrollers. Use Value: Clamps to ≤15.4 V during 97.4 A surge, preventing latch-up or permanent damage to downstream 16 V-rated ICs. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) shunt protector on 4–20 mA or 0–10 V signal lines exposed to field wiring noise. Use Value: Responds in <1 ps to fast-rising EFT bursts (IEC 61000-4-4), limiting induced voltage to safe levels before sensor front-end amplifiers saturate. |
| Telecom Data Line Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Shielding RS-232/RS-485 transceivers in base station backhaul units from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential-mode across line pairs to suppress common-mode and asymmetrical transients. Use Value: Symmetric VBR (10.0–11.1 V) ensures matched clamping in both directions, preserving signal integrity during ±15 kV ESD contact discharge. | Use Scenario: Adding secondary-level surge immunity to USB 2.0 data lines (D+/D−) in smart home hubs exposed to user-handling ESD. IC Role / Device Role / Timing Role: Secondary protection stage after internal port ESD diodes, absorbing residual energy from 8 kV HBM events. Use Value: 15.4 V clamping voltage stays below USB 2.0 eye diagram mask limits, avoiding data corruption during transient suppression. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA-M3 | Lower PPPM (600 W), same VWM/VC, SMB (DO-214AA) package - 30% smaller footprint, lower thermal mass. | Suitable for space-constrained consumer ports but not automotive load dump where 1500 W is required. | Select when board area is critical and surge energy is limited to IEC 61000-4-5 Level 3 (0.5 kV/42 Ω). |
| SMCJ9.0A-M3/57T | Unidirectional version; same package, VWM, and PPPM, but asymmetric clamping (cathode-marked) and higher IR at VWM. | Required only for DC-biased lines where reverse conduction must be blocked (e.g., 5 V supply rail with ground reference). | Choose only if circuit topology mandates unidirectional blocking; otherwise SMCJ9.0CA-M3/57T offers broader flexibility. |
Compared with SMBJ9.0CA-M3 and SMCJ9.0A-M3/57T, the SMCJ9.0CA-M3/57T uniquely balances high-energy 1500 W clamping, bidirectional symmetry, and halogen-free compliance - making it optimal for automotive and industrial power/signal line protection where polarity independence and robust surge handling are mandatory.
Availability
SMCJ9.0CA-M3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, telecom infrastructure, and consumer USB interface designs requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ9.0CA-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, thermal performance, and AEC-Q101 qualification.
The SMCJ series is engineered for high-power transient suppression in harsh environments - targeting automotive power distribution, industrial control I/O, and telecom infrastructure where failure tolerance and repeatable clamping are mission-critical.
FAQ
What is the clamping voltage of SMCJ9.0CA-M3/57T at its rated peak pulse current?
The SMCJ9.0CA-M3/57T has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current (IPPM) of 97.4 A using a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and guarantees that downstream components see no more than 15.4 V during worst-case transient events - critical for protecting 16 V-rated ICs in automotive and industrial applications. The SMCJ9.0CA-M3/57T maintains this clamping performance across its full operating temperature range.
Is SMCJ9.0CA-M3/57T suitable for automotive applications?
Yes, the SMCJ9.0CA-M3/57T is qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes; however, the M3/57T variant is commercial-grade and widely deployed in automotive subsystems such as body control modules and infotainment power supplies where full qualification is not mandated. Its 150 °C junction rating, 1500 W surge capability, and halogen-free construction meet core automotive reliability expectations. For full AEC-Q101 compliance, specify SMCJ9.0CA-HM3/57T - the SMCJ9.0CA-M3/57T remains a proven choice for cost-sensitive Tier 2 automotive designs.
How does the bidirectional design of SMCJ9.0CA-M3/57T affect PCB layout?
The bidirectional design of SMCJ9.0CA-M3/57T eliminates polarity constraints - no cathode band marking is present, and either terminal functions identically. This allows placement across AC-coupled lines, differential pairs (e.g., CAN, RS-485), or floating power domains without orientation checks. Layout requires symmetric 8.0 mm × 8.0 mm copper pads per terminal per Vishay's recommended footprint (Document 88394, fig. 2) to sustain rated IPPM; no silkscreen polarity indicator is needed. The SMCJ9.0CA-M3/57T thus reduces layout errors and simplifies routing in mixed-signal systems.
What is the reverse leakage current specification for SMCJ9.0CA-M3/57T at its standoff voltage?
At its 9.0 V standoff voltage (VWM), the SMCJ9.0CA-M3/57T exhibits a maximum reverse leakage current (ID) of 10 µA at TA = 25 °C. This low leakage ensures minimal power loss in always-on circuits and avoids false triggering in high-impedance sensor bias networks. Leakage remains below 100 µA up to 85 °C, supporting stable operation in industrial ambient conditions. The SMCJ9.0CA-M3/57T achieves this while maintaining fast response and low clamping voltage - a key trade-off optimized for precision protection.
Does SMCJ9.0CA-M3/57T require derating at elevated ambient temperatures?
Yes, the SMCJ9.0CA-M3/57T must be derated above TA = 25 °C per Figure 2 in Vishay Document 88394: its peak pulse power (PPPM) decreases linearly to ~750 W at 100 °C ambient. Derating follows a 0.5 %/°C slope above 25 °C, based on thermal resistance RθJA = 75 °C/W. For sustained high-temp operation, ensure adequate copper pour and avoid stacking heat-generating components nearby. The SMCJ9.0CA-M3/57T retains full functionality up to +150 °C junction temperature, but system-level thermal design directly impacts surge survivability.
SMCJ9.0CA-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 97.4A
- 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 (SMC)
SMCJ9.0CA-M3/57T FAQ
1.How can I place an order for SMCJ9.0CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0CA-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 SMCJ9.0CA-M3/57T reliable?
The price and inventory of SMCJ9.0CA-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 SMCJ9.0CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ9.0CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0CA-M3/57T?
SMCJ9.0CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0CA-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 SMCJ9.0CA-M3/57T?
For technical support, including SMCJ9.0CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0CA-M3/57T requirements.
6.How does Aetrix verify that SMCJ9.0CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0CA-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 SMCJ9.0CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ9.0CA-M3/57T?
All SMCJ9.0CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0CA-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 SMCJ9.0CA-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ9.0CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0CA-M3/57T Tags
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