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Taiwan Semiconductor Corporation SMCJ100C
- Part No.:
- SMCJ100C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ100C.pdf
- Description:
- 1500W, 123.5V, 10%, BIDIRECTIONA
- Quantity:
- Payment:
- Shipping:
Inventory:2,033
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Product details
Overview
SMCJ100C from Taiwan Semiconductor is a bidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, designed for high-energy surge protection in automotive and industrial power rails. It features a 100V working stand-off voltage (VWM), 111–136V breakdown voltage (VBR), and clamps transients to ≤179V at 8.8A peak impulse current (IPPM), meeting ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements.
For engineers reviewing the SMCJ100C datasheet, SMCJ100C pinout, SMCJ100C application, or SMCJ100C equivalent, this device is selected for robust ESD and inductive switching transient suppression where fast response (<1.0 ps), low leakage (<1 µA @ 100V), and AEC-Q200-aligned reliability are critical in 12V/24V/48V systems.
Technical Context
The SMCJ100C is a unidirectional/bidirectional TVS diode configured as a single die in a glass-passivated junction, enabling sub-nanosecond response to voltage transients. Its clamping behavior follows the 10/1000 µs standard waveform per IEC 61000-4-5 and R.E.A., with thermal resistance of 10°C/W (junction-to-case) and 55°C/W (junction-to-ambient).
It operates across -55°C to +150°C junction temperature range and supports bidirectional protection when marked with "C" suffix - confirmed by manufacturer specification stating "For bidirectional use C or CA suffix for types SMCJ5.0 – types SMCJ170" and "Electrical characteristics apply in both directions".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC rail margin for 12V/24V/48V systems. |
| VBR min/max | 111 V / 136 V @ IT = 1 mA - Validated breakdown threshold ensures predictable turn-on during surges without premature conduction. |
| VC @ IPPM | ≤179 V @ 8.8 A - Clamping voltage under 10/1000 µs surge defines worst-case overvoltage seen by downstream ICs. |
| PPK | 1500 W - Peak pulse power rating determines survivability against ISO 7637-2 Pulse 5a (load dump) events. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves battery life and avoids false triggering in always-on circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, matte tin-plated leads, polarity indicated by cathode band (bidirectional variant uses symmetrical marking; no polarity dependence).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | No functional polarity - terminals interchangeable; clamps positive and negative transients equally. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), enabling drop-in protection in automotive ECUs. |
| Fast response time | <1.0 ps rise-to-breakdown - Ensures clamping activation before sensitive logic or analog circuitry sustains damage from ESD or lightning-induced edges. |
| Glass passivated junction | Enhances long-term reliability and moisture resistance (MSL Level 1), eliminating need for conformal coating in humid industrial deployments. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - supports green manufacturing and end-of-life recycling requirements. |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and microcontroller power inputs from load dump (Pulse 5a) and jump-start transients in 12V/24V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between VCC and GND, absorbing energy before it reaches LDOs or MCU VDD pins. Use Value: Limits transient overvoltage to ≤179 V while sustaining 1500 W peak power - preventing latch-up or gate oxide rupture in 3.3V/5V logic. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive kickback from solenoids, relays, and motor drivers. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24V DC input lines, placed upstream of optocouplers and signal conditioners. Use Value: Withstands ≥100,000 surge cycles per IEC 61000-4-5 due to low thermal resistance (RθJC = 10°C/W), ensuring field longevity. |
| LED Driver Surge Suppression | ESD Protection for Industrial Sensors |
Use Scenario: Shielding constant-current LED driver ICs in streetlight and signage applications from AC line surges and nearby lightning strikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output or input rails, clamping spikes before they disrupt current regulation loop stability. Use Value: 100V VWM aligns with 90–105V DC bus ranges in offline LED drivers, avoiding false triggering during normal operation. |
Use Scenario: Protecting analog outputs (4–20 mA) and digital sensor interfaces (I²C, RS-485) in factory-floor environmental sensors from ESD and cable-coupled transients. IC Role / Device Role / Timing Role: Localized TVS at connector entry point, shunting fast transients (<1 ns) before propagation into precision ADC front-ends. Use Value: Sub-1 µA leakage at 100V prevents offset drift in µA-level current loops and maintains signal integrity in high-resolution sensor nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100C | 600W peak power rating, same VWM/VBR/VC specs but lower IPPM (4.4A vs. 8.8A); DO-214AA (SMB) package. | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a load dump. | Select SMBJ100C only when board space is constrained and surge threat level is limited to <600W events. |
| SMCJ100CA | Same 1500W rating and DO-214AB package, but tighter VBR tolerance (111–123V vs. 111–136V); lower clamping voltage (162V vs. 179V). | Better for noise-sensitive analog circuits requiring stricter overvoltage control; identical mounting and layout. | Choose SMCJ100CA when clamping voltage margin is critical and tighter VBR distribution improves system-level immunity margin. |
Compared with SMCJ100C, SMBJ100C offers smaller footprint but half the surge energy handling, while SMCJ100CA delivers superior clamping consistency at identical power rating - making SMCJ100C the balanced choice for general-purpose 1500W protection where cost and availability are prioritized.
Availability
SMCJ100C is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, LED driver protection, and sensor interface hardening requiring stable component supply across extended production lifecycles.
Supply support for SMCJ100C 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 devices.
The SMCJ series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing ISO 7637-2 compliance, MSL Level 1 robustness, and AEC-Q200-aligned stress testing.
FAQ
What does the "C" suffix indicate in SMCJ100C?
The "C" suffix in SMCJ100C denotes bidirectional configuration, meaning the device provides symmetrical clamping for both positive and negative voltage transients without polarity dependence. This is confirmed in the manufacturer's documentation stating "For bidirectional use C or CA suffix for types SMCJ5.0 – types SMCJ170" and "Electrical characteristics apply in both directions." The SMCJ100C has no anode/cathode orientation requirement in circuit layout.
How does SMCJ100C differ from SMCJ100A?
The SMCJ100A is the unidirectional version with tighter VBR tolerance (111–123V) and lower clamping voltage (162V @ 9.7A), whereas SMCJ100C is bidirectional with wider VBR (111–136V) and higher clamping voltage (179V @ 8.8A). Both share identical DO-214AB packaging and 1500W PPK rating, but SMCJ100C enables simplified layout in AC-coupled or floating-rail applications where polarity is undefined.
Is SMCJ100C compliant with automotive standards?
Yes, SMCJ100C meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements for electrical disturbances in road vehicles, and its construction (glass passivated junction, MSL Level 1, -55°C to +150°C TJ range) aligns with AEC-Q200 stress test conditions. While not formally AEC-Q200 certified, its specifications and qualification methodology support automotive-grade deployment in non-safety-critical ECUs.
What is the maximum clamping voltage of SMCJ100C under surge conditions?
The maximum clamping voltage (VC) of SMCJ100C is 179 V at 8.8 A peak impulse current (IPPM), measured under the standardized 10/1000 µs double-exponential surge waveform. This value represents the worst-case overvoltage imposed on protected circuitry during a full 1500W transient event, and is validated per ANSI/IEEE C62.35 definitions.
Can SMCJ100C be used in place of SMCJ100?
No - SMCJ100 (without suffix) is not a defined part in Taiwan Semiconductor's official ordering matrix. The valid variants are SMCJ100A (unidirectional) and SMCJ100C (bidirectional). Using "SMCJ100" as a generic reference may cause procurement errors; always specify the correct suffix (A or C) to ensure proper polarity behavior and guaranteed parametric performance per datasheet Table on page 3.
SMCJ100C 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):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 179V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- 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)
SMCJ100C FAQ
1.How can I place an order for SMCJ100C through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ100C 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 SMCJ100C reliable?
The price and inventory of SMCJ100C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ100C is usually 5 days.
3.What payment methods are accepted for SMCJ100C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ100C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ100C?
SMCJ100C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ100C 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 SMCJ100C?
For technical support, including SMCJ100C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ100C requirements.
6.How does Aetrix verify that SMCJ100C is sourced from the original manufacturer or authorized distributors?
All SMCJ100C 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 SMCJ100C meets industry standards.
7.What is the process for return or replacement of SMCJ100C?
All SMCJ100C units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ100C, 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 SMCJ100C part is unused and in its original packaging.
Return procedure for SMCJ100C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ100C Tags
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