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Taiwan Semiconductor Corporation SMCJ9V0CA
- Part No.:
- SMCJ9V0CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9V0CA.pdf
- Description:
- TVS DIODE 9VWM 15.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,996
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Product details
Overview
SMCJ9V0CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 9.0V working stand-off voltage (VWM), 10V minimum breakdown voltage (VBR), and 15.4V maximum clamping voltage (VC) at 10A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMCJ9V0CA datasheet, SMCJ9V0CA pinout, SMCJ9V0CA application, or SMCJ9V0CA equivalent, this device delivers sub-1ps response time, <1μA reverse leakage above 10V, and robust 150°C junction temperature rating - critical for ESD and inductive switching surge protection in embedded control units and lighting drivers.
Technical Context
The SMCJ9V0CA is a bipolar (bidirectional) TVS diode designed for symmetric clamping in AC-coupled or floating signal/power lines. Its glass-passivated junction ensures stable VBR tolerance (10V min / 12.2V max at 1mA test current) and low leakage (<1μA @ 9V).
It operates across -55°C to +150°C, features 10°C/W junction-to-case thermal resistance, and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards - enabling reliable deployment in under-hood automotive modules and industrial motor drives.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 10.0 / 12.2 V @ 1 mA - Ensures predictable turn-on margin above system rail |
| VC @ IPPM | 15.4 V @ 10 A - Limits downstream IC stress during 10/1000μs surge events |
| PPK | 1500 W - Withstands single 1ms pulse per Fig.5, derated linearly above 25°C ambient |
| IR @ VWM | <1 μA - Negligible standby power loss in battery-backed or low-power systems |
| Package | DO-214AB (SMC) - Surface-mount footprint compatible with automated placement and IPC-7351B SMC_4030 |
| TJ max | +150 °C - Supports operation in engine control units and high-temperature industrial enclosures |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (bidirectional symmetry means both terminals function identically as anode/cathode depending on transient polarity).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | Both terminals clamp positive or negative surges equally - no orientation dependency in PCB layout |
| Case | Non-electrical mechanical interface | No internal connection; serves only as thermal mass and mounting surface |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Stable VBR over lifetime and temperature; eliminates parameter drift in harsh environments |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated for automotive load-dump and alternator-switching immunity testing without external filtering |
| Sub-1 ps response time | Clamps transients before sensitive logic or analog circuitry experiences overvoltage damage |
| Moisture sensitivity level 1 | Zero bake requirement prior to reflow - supports standard SMT assembly without special handling |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for green electronics manufacturing |
Applications
| Automotive Body Control Module (BCM) | Industrial LED Driver Power Input |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O from battery line transients during load dump or jump-start. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point before EMI filter. Use Value: Limits voltage to ≤15.4V during 10A surge, preventing latch-up or gate oxide rupture in 5V/3.3V logic interfaces. | Use Scenario: Safeguarding constant-current LED driver ICs from inductive kickback when driving solenoid-based dimming circuits. IC Role / Device Role / Timing Role: Parallel-connected TVS absorbing energy from flyback spikes generated by MOSFET switching. Use Value: Dissipates up to 1500W peak power without degradation, maintaining LED output stability across 50,000+ switching cycles. |
| Smart Building HVAC Sensor Node | Medical Diagnostic Equipment Power Rail |
Use Scenario: Shielding RS-485 communication lines and supply inputs from EFT bursts in shared building wiring infrastructure. IC Role / Device Role / Timing Role: First-line transient suppression on 24V DC input and differential data lines. Use Value: Clamps 1kV/50ns EFT pulses to safe levels within 1ps, preserving signal integrity and avoiding false sensor readings. | Use Scenario: Guarding isolated DC-DC converter outputs powering analog front-end ADCs in portable ultrasound units. IC Role / Device Role / Timing Role: Low-leakage (≤1μA) TVS ensuring minimal offset error and noise coupling into precision measurement paths. Use Value: Maintains <1μA reverse leakage at 9V, preventing baseline drift in 24-bit medical-grade analog signal chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA (Bourns) | 600W PPK rating, same VWM/VBR/VC specs but lower surge capacity | Preferred for space-constrained designs where 600W suffices and SMB footprint reduces board area | Select SMBJ9.0CA only if system-level surge testing confirms ≤600W requirements |
| P6SMB9.0CA (Littelfuse) | Identical 1500W rating and DO-214AB package; VBR min 10.0V, VC 15.4V - fully aligned with SMCJ9V0CA electricals | No functional difference; validated in same automotive and industrial surge test profiles | P6SMB9.0CA offers identical performance with alternate sourcing for supply chain diversification |
Compared with SMBJ9.0CA and P6SMB9.0CA, the SMCJ9V0CA provides equal clamping performance at 1500W while offering broader manufacturer support and documented ISO 7637-2 validation - making it optimal for high-reliability automotive and industrial deployments requiring full-spec margin.
Availability
SMCJ9V0CA is available at Aetrix Electronics and suitable for automotive body control modules, industrial LED drivers, smart building sensor nodes, and medical diagnostic equipment requiring stable component supply and long-term lifecycle assurance.
Supply support for SMCJ9V0CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers with global AEC-Q200 qualification capabilities.
The SMCJ series was developed specifically for high-energy transient suppression in automotive and industrial power systems, emphasizing ISO 7637-2 compliance, thermal robustness, and automated assembly compatibility.
FAQ
What is the clamping voltage of the SMCJ9V0CA at its rated peak pulse current?
The SMCJ9V0CA has a maximum clamping voltage (VC) of 15.4 V at 10 A peak impulse current (IPPM), measured under the standardized 10/1000 μs double-exponential surge waveform per IEC 61000-4-5. This value ensures downstream components see no more than 15.4 V during worst-case transient events, protecting 3.3V and 5V logic interfaces. The SMCJ9V0CA maintains this clamping performance across its full operating temperature range (-55°C to +150°C).
Is the SMCJ9V0CA unidirectional or bidirectional, and how does that affect PCB layout?
The SMCJ9V0CA is a bidirectional TVS diode, indicated by the "CA" suffix per Taiwan Semiconductor's naming convention. Its symmetrical structure allows identical clamping for both positive and negative transients, eliminating polarity concerns during placement. Unlike unidirectional variants, the SMCJ9V0CA requires no cathode band alignment - either terminal may connect to either side of the protected line. This simplifies layout and reduces assembly errors in differential or AC-coupled applications.
Does the SMCJ9V0CA meet automotive transient immunity standards?
Yes, the SMCJ9V0CA is explicitly rated to meet ISO 7637-2 for automotive transient immunity, covering Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT on power/data lines). Taiwan Semiconductor validates these ratings per the standard's waveform definitions and test setup. The SMCJ9V0CA's 1500W peak power rating and sub-1ps response ensure compliance without additional external filtering in typical 12V/24V vehicle networks.
What is the maximum steady-state power dissipation for the SMCJ9V0CA?
The SMCJ9V0CA has a steady-state power dissipation (PD) rating of 5 W at 25°C ambient temperature, as specified in its Absolute Maximum Ratings table. This value reflects continuous DC or low-frequency power handling capability - not surge energy. In normal operation, reverse leakage remains below 1 μA at 9.0 V, resulting in negligible steady-state power loss. The SMCJ9V0CA is intended for transient suppression, not continuous power regulation.
Can the SMCJ9V0CA be used in place of the SMCJ9.0A part?
No - the SMCJ9V0CA and SMCJ9.0A are electrically distinct. SMCJ9.0A is unidirectional (single-polarity clamping), while SMCJ9V0CA is bidirectional. Their marking codes, VBR tolerances, and clamping curves differ: SMCJ9.0A has VBR min/max of 10.0/11.1 V and VC = 15.4 V, whereas SMCJ9V0CA has VBR min/max of 10.0/12.2 V and same VC. Substituting them requires verifying system polarity requirements and surge directionality. The SMCJ9V0CA must be used only where bidirectional protection is required.
SMCJ9V0CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- 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:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ9V0CA FAQ
1.How can I place an order for SMCJ9V0CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9V0CA 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 SMCJ9V0CA reliable?
The price and inventory of SMCJ9V0CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9V0CA is usually 5 days.
3.What payment methods are accepted for SMCJ9V0CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9V0CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9V0CA?
SMCJ9V0CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9V0CA 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 SMCJ9V0CA?
For technical support, including SMCJ9V0CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9V0CA requirements.
6.How does Aetrix verify that SMCJ9V0CA is sourced from the original manufacturer or authorized distributors?
All SMCJ9V0CA 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 SMCJ9V0CA meets industry standards.
7.What is the process for return or replacement of SMCJ9V0CA?
All SMCJ9V0CA units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9V0CA, 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 SMCJ9V0CA part is unused and in its original packaging.
Return procedure for SMCJ9V0CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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