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Taiwan Semiconductor Corporation SMCJ10CA
- Part No.:
- SMCJ10CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10CA.pdf
- Description:
- TVS DIODE 10VWM 17VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,002
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Product details
Overview
SMCJ10CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for high-energy surge protection in DC power rails and signal lines. It features a 10V working stand-off voltage (VWM), 11.1–12.3V breakdown voltage (VBR), 17.0V maximum clamping voltage (VC) at 92A peak pulse current, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive electronics.
For engineers reviewing the SMCJ10CA datasheet, SMCJ10CA pinout, SMCJ10CA application, or SMCJ10CA equivalent, this device is selected for robust ESD and load-dump immunity in automotive infotainment, industrial PLC I/O modules, and LED driver input stages where fast clamping (<1.0 ps response) and low leakage (<5 µA @ 10V) are critical.
Technical Context
The SMCJ10CA is a bipolar (bidirectional) TVS diode with symmetrical avalanche breakdown characteristics in both polarities, enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
Thermal performance is defined by RθJA = 55°C/W and RθJC = 10°C/W, supporting operation up to +150°C junction temperature. The device sustains 1500W peak pulse power (10/1000 µs waveform) with derating above 25°C ambient per Fig.2, and exhibits <1 µA reverse leakage above 10V - critical for low-power sensor interface protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin for 12V automotive systems. |
| VBR min/max | 11.1 V / 12.3 V @ IT = 1 mA - Tight breakdown tolerance ensures predictable turn-on during transients. |
| VC @ IPPM | 17.0 V @ 92 A - Clamping voltage limits downstream IC stress during ISO 7637-2 Pulse 5a (load dump). |
| PPK | 1500 W - Peak pulse power handling for 10/1000 µs waveform; supports high-energy automotive surges. |
| IR @ VWM | <5 µA - Ultra-low leakage preserves battery life in always-on vehicle modules. |
| TJ max | +150 °C - Enables placement near heat sources in engine control units and power converters. |
| Package | DO-214AB (SMC) - Surface-mount footprint compatible with automated assembly; 7.11 × 6.22 mm body. |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking; bidirectional configuration means no anode/cathode polarity - terminals are functionally symmetric for AC or floating applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as clamping node; symmetric conduction enables protection of differential or ungrounded signals. |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired with Terminal 1 to form a voltage-clamped path across protected line and reference (e.g., GND or VCC). |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling) - essential for automotive ECUs. |
| Glass passivated junction | Enhances long-term stability of VBR and reduces parameter drift over temperature and lifetime cycling. |
| Fast response time | <1.0 ps from 0 V to VBR min - clamps before sensitive CMOS inputs experience overstress. |
| Moisture sensitivity level | MSL Level 1 (per J-STD-020) - no bake requirement prior to reflow; simplifies manufacturing flow. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS - meets environmental requirements for global automotive supply chains. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V supply inputs of telematics control units (TCUs) against load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and DC-DC converter input. Use Value: Limits voltage to ≤17.0 V during 1500W pulses, preventing damage to upstream PMICs and microcontrollers. | Use Scenario: Safeguarding 4–20 mA current-loop transmitters in factory automation against EFT bursts and cable-induced surges. IC Role / Device Role / Timing Role: Bidirectional shunt clamp across loop terminals to divert transients before reaching analog front-end. Use Value: Symmetric clamping ensures protection regardless of loop polarity; <5 µA leakage avoids measurement error. |
| LED Driver Input Stage | USB-C Port ESD Protection |
Use Scenario: Input surge suppression for constant-current LED drivers used in commercial lighting fixtures exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense on AC/DC rectified output before bulk capacitor and controller IC. Use Value: 1500W rating handles multi-kV induced transients; DO-214AB thermal mass aids energy dissipation. | Use Scenario: Secondary-level ESD protection on USB-C CC and VBUS lines in portable docking stations. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed after primary common-mode choke to absorb residual ±15 kV contact discharge. Use Value: 17.0V VC ensures safe voltage delivery to USB PD controllers; bidirectional operation matches differential signaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | 600W peak power rating; same VWM/VBR/VC but lower IPPM (50A vs. 92A); SMB package (smaller thermal mass). | Not suitable for ISO 7637-2 Pulse 5a (load dump); limited to lower-energy transients like ESD and EFT. | Select SMCJ10CA when automotive load dump or high-repetition surge duty is required; SMBJ10CA fits space-constrained designs with milder threat profiles. |
| P6SMB10CA | 600W rating; identical VWM/VBR but higher VC (17.5V); same SMB package; JEDEC-standard marking. | Lacks ISO 7637-2 validation; typically used in consumer-grade power supplies rather than automotive or industrial environments. | Choose SMCJ10CA for certified automotive immunity; P6SMB10CA may be acceptable for cost-sensitive non-automotive applications with verified surge margins. |
Compared with SMBJ10CA and P6SMB10CA, the SMCJ10CA delivers 2.5× higher peak power handling and validated ISO 7637-2 compliance - making it the only option among the three qualified for under-hood automotive power rail protection where sustained 1500W surges occur.
Availability
SMCJ10CA is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controller (PLC) I/O modules, LED driver input stages, and USB-C port protection requiring stable component supply across extended production lifecycles.
Supply support for SMCJ10CA 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 for automotive, industrial, and computing markets.
The SMCJ series was developed specifically for high-reliability transient suppression in harsh automotive environments, emphasizing ISO 7637-2 compliance, tight parametric tolerances, and MSL Level 1 manufacturability.
FAQ
What is the clamping voltage of the SMCJ10CA and how is it measured?
The SMCJ10CA has a maximum clamping voltage (VC) of 17.0 V, measured at 92 A peak pulse current (IPPM) using the standardized 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the upper voltage limit imposed on protected circuitry during worst-case surge events and is confirmed in the Electrical Specifications table on page 2 of the Taiwan Semiconductor S2104 datasheet for SMCJ10CA.
Is the SMCJ10CA unidirectional or bidirectional, and how does that affect its use?
The SMCJ10CA is a bidirectional TVS diode, indicated by the "CA" suffix per Taiwan Semiconductor's ordering convention. It provides symmetrical clamping in both polarities, making it ideal for protecting AC-coupled interfaces, floating sensors, or any circuit where voltage reversal may occur. Unlike unidirectional SMCJ10C variants, the SMCJ10CA requires no polarity alignment during placement and functions identically across both terminals.
Does the SMCJ10CA meet automotive surge immunity standards?
Yes, the SMCJ10CA meets ISO 7637-2 for automotive transient immunity, explicitly covering Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling). This validation is stated in the FEATURES section of the S2104 datasheet and distinguishes it from generic TVS diodes not tested to automotive requirements.
What is the maximum junction temperature rating for the SMCJ10CA?
The SMCJ10CA has a maximum junction temperature (TJ) rating of +150°C, as specified in the Absolute Maximum Ratings table. This allows reliable operation in under-hood automotive environments and high-temperature industrial enclosures. Derating of peak power begins above TA = 25°C per the Pulse Derating Curve (Fig.2) in the S2104 datasheet.
How does the SMCJ10CA compare to the SMCJ10A in terms of electrical performance?
The SMCJ10CA is the bidirectional version, while SMCJ10A is unidirectional. Both share identical VWM (10 V), VBR (11.1–12.3 V), and VC (17.0 V), but the SMCJ10CA clamps in both directions and lacks a cathode band marking. The SMCJ10A includes a cathode band and is intended for DC rail protection only; substituting one for the other without verifying circuit polarity and surge direction risks incomplete protection.
SMCJ10CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 17V
- Current - Peak Pulse (10/1000µs):
- 88.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ10CA FAQ
1.How can I place an order for SMCJ10CA through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10CA 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 SMCJ10CA reliable?
The price and inventory of SMCJ10CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10CA is usually 5 days.
3.What payment methods are accepted for SMCJ10CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10CA?
SMCJ10CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10CA 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 SMCJ10CA?
For technical support, including SMCJ10CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10CA requirements.
6.How does Aetrix verify that SMCJ10CA is sourced from the original manufacturer or authorized distributors?
All SMCJ10CA 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 SMCJ10CA meets industry standards.
7.What is the process for return or replacement of SMCJ10CA?
All SMCJ10CA units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10CA, 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 SMCJ10CA part is unused and in its original packaging.
Return procedure for SMCJ10CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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