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Taiwan Semiconductor Corporation SMCJ13
- Part No.:
- SMCJ13
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ13.pdf
- Description:
- 1500W, 16V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
SMCJ13 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 13V working stand-off voltage (VWM), 14.4–17.6V breakdown voltage (VBR), and 23.8V maximum clamping voltage (VC) at 66A peak pulse current - designed for automotive load-dump and inductive switching protection in power supply rails.
For engineers reviewing the SMCJ13 datasheet, SMCJ13 pinout, SMCJ13 application, or SMCJ13 equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, junction temperature derating above 25°C, moisture sensitivity level (MSL 1), and compatibility with automated SMT placement on 12V battery-fed systems.
Technical Context
The SMCJ13 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (14.4–17.6V @ 1mA test current). It clamps transients to ≤23.8V at 66A (10/1000μs waveform), limiting energy dissipation via thermal conduction through its DO-214AB case with RθJC = 10°C/W and RθJA = 55°C/W.
It meets ISO 7637-2 immunity requirements for automotive electronics, supports fast response (<1.0ps rise time), and maintains <1μA leakage at 13V - enabling reliable protection of 12V microcontroller I/O, CAN transceivers, and sensor interfaces without loading normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 13 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 14.4 V / 17.6 V @ 1 mA - guaranteed avalanche initiation window under standardized test conditions |
| VC @ IPPM | 23.8 V @ 66 A - peak clamped voltage during 10/1000μs surge, defining worst-case stress on downstream ICs |
| PPK | 1500 W - non-repetitive peak pulse power handling capability per JEDEC JESD22-A114 |
| TJ max | +150 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| IR @ VWM | <1 μA - negligible leakage at rated stand-off, avoiding unintended bias or power loss in low-current circuits |
| Package | DO-214AB (SMC) - industry-standard surface-mount outline with 0.210 g mass and UL 94V-0 molding compound |
Pinout & Package
DO-214AB (SMC) package: cathode-banded unidirectional configuration with two terminals - anode (unmarked end) and cathode (banded end). Designed for standard SMT reflow profiles and compatible with J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to system ground or low-side return path; defines polarity-sensitive clamping direction |
| Cathode | Avalanche conduction terminal / Clamping output node | Connected to protected line (e.g., 12V rail); conducts surge current to ground when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift in harsh environments |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
| MSL Level 1 rating | Zero floor-life limitation - can be stored indefinitely and placed without baking prior to reflow |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
| Fast 1.0ps response | Clamps ESD and EFT events before sensitive logic or analog circuitry sustains damage |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12V battery-fed ECUs exposed to load-dump transients up to 35V during alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before DC-DC converter input stage. Use Value: Limits peak voltage to 23.8V, preventing overvoltage damage to 36V-rated input stages while maintaining <1μA standby leakage. | Use Scenario: 4–20mA current-loop sensors connected to PLC analog inputs in factory-floor environments with motor drive noise. IC Role / Device Role / Timing Role: TVS mounted at sensor terminal block to shunt fast transients induced by nearby VFD switching. Use Value: Clamps 1kV/500A surge (per IEC 61000-4-5) within 1.0ps, preserving signal integrity and avoiding ADC saturation or latch-up. |
| LED Driver Input Stage Protection | Automotive CAN Transceiver Protection |
Use Scenario: Constant-current LED drivers powered from vehicle battery with high di/dt during ignition cycling. IC Role / Device Role / Timing Role: SMCJ13 placed across input bulk capacitor to absorb inductive kickback from relay or solenoid control lines. Use Value: Handles 1500W peak pulse without degradation, enabling single-device protection instead of multi-stage RC+TVS solutions. | Use Scenario: CANH/CANL lines in body control modules subjected to ESD events and coupled transients from adjacent high-power wiring. IC Role / Device Role / Timing Role: Paired unidirectional SMCJ13 devices (one per line) referenced to ground, protecting transceiver I/O pins. Use Value: Provides 23.8V clamping margin below typical CAN transceiver absolute max rating (±40V), ensuring robustness without compromising common-mode range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | 600W PPK rating, lower VC (21.5V @ 37A), same VWM/VBR range, SMB package (smaller footprint) | Better suited for space-constrained PCBs where 1500W surge margin is not required | Select SMBJ13A if board area is critical and peak surge exposure is limited to ISO 7637-2 Pulse 3b only |
| 1.5KE13A | Through-hole DO-201 package, 1500W rating, higher VC (24.4V @ 61A), longer lead inductance | Compatible with legacy wave-soldered designs but unsuitable for high-frequency transient suppression | Choose 1.5KE13A only for cost-sensitive, non-automotive applications where SMT is unavailable |
Compared with SMBJ13A and 1.5KE13A, the SMCJ13 delivers superior surge robustness in surface-mount form - offering 2.5× higher peak power than SMBJ13A and lower parasitic inductance than 1.5KE13A - making it optimal for modern automotive and industrial 12V systems requiring ISO 7637-2 compliance.
Availability
SMCJ13 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface protection, LED driver input staging, and CAN bus front-end hardening requiring stable component supply across production lifecycles.
Supply support for SMCJ13 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and power management components.
The SMCJ series belongs to TSC's high-power transient suppression product line, engineered specifically for automotive-grade reliability, ISO 7637-2 compliance, and automated SMT deployment in harsh-environment electronics.
FAQ
What is the maximum clamping voltage of the SMCJ13 under standard test conditions?
The SMCJ13 has a maximum clamping voltage (VC) of 23.8 V when subjected to a 10/1000 μs surge waveform at 66 A peak impulse current (IPPM), as specified in Taiwan Semiconductor's S2104 datasheet. This value defines the upper voltage limit imposed on protected circuitry during transient events and is measured at TA = 25°C with defined test setup per ANSI/IEEE C62.35.
Is the SMCJ13 unidirectional or bidirectional, and how is polarity marked?
The SMCJ13 is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix. Polarity is marked by a cathode band on the DO-214AB (SMC) package - the banded end is the cathode, which connects to the protected line (e.g., 12V rail), while the unmarked end is the anode, connected to ground. Bidirectional variants require explicit "C" or "CA" designation (e.g., SMCJ13C).
Does the SMCJ13 meet automotive transient immunity standards?
Yes, the SMCJ13 meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), as confirmed in Taiwan Semiconductor's official documentation. Its 1500W peak power rating, fast <1.0ps response, and controlled clamping behavior make it suitable for AEC-Q200-informed automotive subsystem designs.
What is the junction-to-ambient thermal resistance (RθJA) of the SMCJ13 in standard mounting conditions?
The SMCJ13 has a typical junction-to-ambient thermal resistance (RθJA) of 55°C/W when mounted on a standard FR-4 PCB with minimum copper pad area, as stated in the Thermal Performance section of the S2104 datasheet. This value assumes natural convection cooling and influences derating curves for sustained surge duty cycles above 25°C ambient.
Can the SMCJ13 be used in place of the SMCJ13A, and what is the key difference?
No - the SMCJ13 and SMCJ13A are distinct variants: SMCJ13 has VBR min/max = 14.4–17.6 V and clamps at 23.8 V, while SMCJ13A has tighter VBR = 14.4–15.9 V and lower VC = 21.5 V. The "A" suffix denotes enhanced VBR tolerance and improved clamping consistency. Substituting SMCJ13 for SMCJ13A may result in higher clamping voltage and reduced protection margin in precision-sensitive applications.
SMCJ13 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.8V
- Current - Peak Pulse (10/1000µs):
- 66A
- 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)
SMCJ13 FAQ
1.How can I place an order for SMCJ13 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ13 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 SMCJ13 reliable?
The price and inventory of SMCJ13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ13 is usually 5 days.
3.What payment methods are accepted for SMCJ13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ13?
SMCJ13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ13 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 SMCJ13?
For technical support, including SMCJ13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ13 requirements.
6.How does Aetrix verify that SMCJ13 is sourced from the original manufacturer or authorized distributors?
All SMCJ13 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 SMCJ13 meets industry standards.
7.What is the process for return or replacement of SMCJ13?
All SMCJ13 units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ13, 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 SMCJ13 part is unused and in its original packaging.
Return procedure for SMCJ13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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