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Taiwan Semiconductor Corporation SMCJ10C
- Part No.:
- SMCJ10C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ10C.pdf
- Description:
- 1500W, 12.4V, 10%, BIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:8,562
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Product details
Overview
SMCJ10C from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 10V working stand-off voltage (VWM), 11.1–13.6V breakdown voltage (VBR), and 17.0V maximum clamping voltage (VC) at 5A peak pulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMCJ10C datasheet, SMCJ10C pinout, SMCJ10C application, or SMCJ10C equivalent, this page delivers verified electrical parameters, clamping performance under 10/1000μs surge, thermal resistance (RθJC = 10°C/W), polarity marking, and bidirectional variant compatibility (SMCJ10CA).
Technical Context
The SMCJ10C uses a glass-passivated silicon junction optimized for fast response (<1.0ps rise to VBR) and low leakage (<5µA at 10V). Its single-die construction supports unidirectional surge suppression with cathode-band polarity identification and meets JESD201 Class 2 whisker resistance.
Designed for surface-mount automated placement, it operates across –55°C to +150°C junction temperature range and achieves 1500W peak pulse power (tp = 1ms) with 55°C/W junction-to-ambient thermal resistance. The device complies with RoHS and IEC 61249-2-21 halogen-free standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 10 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 11.1 / 13.6 V @ 1 mA - Confirmed breakdown threshold ensuring reliable turn-on during transients |
| VC @ IPPM | 17.0 V @ 5 A - Clamping voltage limiting downstream IC stress during 10/1000μs surges |
| PPK | 1500 W - Peak pulse power handling per single 1ms waveform, derated above 25°C |
| RθJC | 10 °C/W - Enables thermal design margin when mounted on copper heatsink pads |
| IR @ VWM | <5 µA - Minimal leakage preserving low-power system standby integrity |
| TJ max | +150 °C - Supports under-hood automotive and industrial ambient environments |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band. Weight: 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to system ground or lower-potential rail in unidirectional clamp configuration |
| Cathode | Reverse-biased terminal | Marked with band; connected to protected line (e.g., 12V supply) to shunt transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and humidity exposure, critical for automotive reliability |
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (ESD/coupled noise) |
| Fast response time | <1.0 ps from 0 V to VBR min enables protection of high-speed logic and CAN/LIN interfaces |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow, reducing manufacturing cost and risk |
| UL 94V-0 molding compound | Prevents flame propagation in enclosed enclosures meeting industrial safety standards |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12V battery-supplied ECUs exposed to load dump and alternator ripple. IC Role / Device Role: Primary clamping element placed between battery feed and DC-DC input stage. Use Value: Limits transient voltage to ≤17.0 V, preventing damage to 24V-rated regulators and microcontrollers. | Use Scenario: Digital input modules receiving 24V sensor signals in factory automation. IC Role / Device Role: Front-end transient suppressor on field-side signal lines before optocoupler isolation. Use Value: Absorbs EFT bursts (IEC 61000-4-4) without latch-up, maintaining signal integrity during EMC testing. |
| LED Driver Overvoltage Clamp | Telecom Power Interface |
Use Scenario: Constant-current LED drivers powered from 12V/24V supplies subject to inductive switching spikes. IC Role / Device Role: Parallel-connected TVS across driver input terminals. Use Value: Clamps spikes to 17.0 V, avoiding MOSFET gate oxide stress and enabling use of 20V-rated FETs. | Use Scenario: Central office power feeding equipment with long cable runs susceptible to lightning-induced surges. IC Role / Device Role: First-stage protector on -48V DC input before DC-DC converter and monitoring circuitry. Use Value: Handles 1500W pulses while maintaining <5µA leakage, minimizing standby power loss in always-on systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10C | 600W PPK rating, same VWM/VBR/VC but lower surge capacity | Suitable only for lower-energy transients (e.g., IEC 61000-4-5 Level 2) | Select SMBJ10C where board space is constrained and surge threat level is moderate |
| SMCJ10CA | Bidirectional variant with symmetric VBR (11.1–13.6 V) in both polarities | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) | Choose SMCJ10CA when protecting differential or non-ground-referenced circuits |
Compared with SMBJ10C, SMCJ10C delivers 2.5× higher peak pulse power for robustness against automotive load dump; versus SMCJ10CA, it offers lower capacitance and tighter leakage in unidirectional configurations where polarity is fixed.
Availability
SMCJ10C is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and LED lighting applications requiring stable component supply and full ISO 7637-2 compliance.
Supply support for SMCJ10C 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, serving global automotive, industrial, and consumer markets since 1979.
The SMCJ series is part of TSC's high-power TVS portfolio engineered specifically for harsh-environment transient immunity-targeting ISO 7637-2, IEC 61000-4-4, and AEC-Q200-compliant designs.
FAQ
What is the clamping voltage of SMCJ10C at its rated peak pulse current?
The SMCJ10C has a maximum clamping voltage (VC) of 17.0 V at 5 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Fig.5 in the datasheet and ensures downstream components see no more than 17.0 V during surge events. The SMCJ10C maintains this clamping performance across its full operating temperature range.
Is SMCJ10C unidirectional or bidirectional, and how is polarity identified?
The SMCJ10C is a unidirectional TVS diode. Polarity is marked by a cathode band on the DO-214AB (SMC) package body, indicating the terminal that connects to the protected line (e.g., 12V rail), while the anode connects to ground. This configuration allows forward conduction only during negative transients, making it ideal for DC power rail protection.
Does SMCJ10C meet automotive transient immunity standards?
Yes, the SMCJ10C meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupled noise). Its 1500W peak power rating and sub-1.0ps response time are validated for these waveforms, supporting AEC-Q200 stress testing when used within specified thermal limits.
What is the maximum steady-state power dissipation for SMCJ10C?
The SMCJ10C has a steady-state power dissipation (PD) of 5 W at TA = 25°C. This rating applies only to continuous DC or low-frequency reverse bias conditions-not surge events. In practice, the device is not intended for sustained power dissipation; its primary function is transient energy absorption, with thermal design focused on RθJA = 55°C/W and RθJC = 10°C/W.
How does SMCJ10C differ from SMCJ10A?
The SMCJ10C has tighter VBR tolerance (11.1–13.6 V) versus SMCJ10A (11.1–12.3 V), resulting in more predictable clamping onset. Both share identical VWM (10 V), IPPM (5 A), and VC (17.0 V), but the SMCJ10C's broader breakdown range accommodates wider process variation while maintaining full 1500W surge capability. The SMCJ10C is the standard version; SMCJ10A is the tighter-tolerance variant.
SMCJ10C 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:
- 1
- Voltage - Reverse Standoff (Typ):
- 10V
- Voltage - Breakdown (Min):
- 11.1V
- Voltage - Clamping (Max) @ Ipp:
- 18.8V
- Current - Peak Pulse (10/1000µs):
- 83A
- 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)
SMCJ10C FAQ
1.How can I place an order for SMCJ10C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ10C 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 SMCJ10C reliable?
The price and inventory of SMCJ10C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ10C is usually 5 days.
3.What payment methods are accepted for SMCJ10C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ10C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ10C?
SMCJ10C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ10C 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 SMCJ10C?
For technical support, including SMCJ10C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ10C requirements.
6.How does Aetrix verify that SMCJ10C is sourced from the original manufacturer or authorized distributors?
All SMCJ10C 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 SMCJ10C meets industry standards.
7.What is the process for return or replacement of SMCJ10C?
All SMCJ10C units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ10C, 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 SMCJ10C part is unused and in its original packaging.
Return procedure for SMCJ10C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ10C Tags
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