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Taiwan Semiconductor Corporation SMCJ5.0
- Part No.:
- SMCJ5.0
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ5.0.pdf
- Description:
- 1500W, 6.9V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:2,958
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Product details
Overview
SMCJ5.0 from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 6.4V minimum breakdown voltage, 10V working stand-off voltage, and 164V maximum clamping voltage at 1000A peak pulse current-designed for automotive ECU power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the SMCJ5.0 datasheet, SMCJ5.0 pinout, SMCJ5.0 application, or SMCJ5.0 equivalent, this page delivers verified electrical specs, thermal performance, clamping behavior under 10/1000μs surge, polarity marking, and RoHS/halogen-free compliance for high-reliability industrial and automotive transient suppression design.
Technical Context
The SMCJ5.0 operates as a unidirectional avalanche diode, activated when reverse voltage exceeds its 6.4–7.3V breakdown range at 10mA test current. It clamps transients to ≤164V at 1000A (10/1000μs waveform), with <1.0ps response time and <5μA reverse leakage at 10V.
Its DO-214AB package provides 55°C/W junction-to-ambient thermal resistance and supports 200A non-repetitive forward surge (8.3ms half-sine). Designed for automated placement, it meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 6.4V / 7.3V at 10mA - defines reliable avalanche initiation threshold for overvoltage detection |
| VWM | 10V - maximum continuous reverse operating voltage before leakage exceeds 5μA |
| VC @ IPPM | 164V at 1000A (10/1000μs) - peak clamped voltage protecting downstream ICs from destructive energy |
| PPK | 1500W - peak pulse power handling capacity per single transient event |
| IR @ VWM | <5μA - ensures minimal standby power loss and signal integrity in always-on circuits |
| TJ max | +150°C - enables operation in under-hood automotive environments without derating |
| RθJA | 55°C/W - quantifies thermal bottleneck for PCB layout cooling requirements |
Pinout & Package
DO-214AB (SMC) surface-mount package with cathode band marking on one end; matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance; 0.210g mass; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path in unidirectional TVS configuration |
| Cathode (marked) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12V battery rail); conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling |
| ISO 7637-2 compliance | Validated for automotive load-dump and inductive-switching immunity (Pulse 1/2a/2b/3a/3b) |
| Fast response <1.0ps | Clamps transients before sensitive logic or analog circuitry sustains damage |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking or special handling |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU RoHS Directive for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery line in engine control unit exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery feed and DC-DC converter input. Use Value: Limits transient voltage to ≤164V, preventing latch-up or gate oxide rupture in downstream PMICs rated for 36V absolute max. | Use Scenario: 24V digital input channel of programmable logic controller subjected to EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Primary front-end surge suppressor on field-wire interface before optocoupler or Schmitt trigger. Use Value: Absorbs 1500W pulses without degradation, maintaining ≤5μA leakage to preserve input threshold accuracy over temperature. |
| LED Driver Overvoltage Clamp | ESD-Sensitive Sensor Interface |
Use Scenario: Constant-current LED driver board powered from unregulated 12V supply in commercial lighting fixture. IC Role / Device Role / Timing Role: Standoff protector across input capacitor to prevent overvoltage failure during hot-plug or cable inductance spikes. Use Value: Clamps 1000A surges within 1.0ps while sustaining only 10V reverse bias during normal operation-no impact on driver efficiency. | Use Scenario: I²C bus lines connecting automotive ambient light sensor to microcontroller in infotainment head unit. IC Role / Device Role / Timing Role: Bidirectional-capable variant (SMCJ5.0A) used for ±8kV contact ESD per IEC 61000-4-2. Use Value: Provides 164V clamping with <1.0ps response, preserving signal rise/fall times critical for 400kHz I²C timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0 | 600W peak power, SMB package (smaller footprint, higher RθJA = 75°C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select SMCJ5.0 when 1500W clamping and automotive-grade thermal robustness are required. |
| 1.5KE5.0A | Through-hole TO-204AA (DO-41), 1500W, but slower response (>1ns) and no AEC-Q200 qualification | Not suitable for automated SMT assembly or space-constrained PCBs | Choose SMCJ5.0 for surface-mount compatibility, faster clamping, and moisture-level-1 handling. |
Compared with SMBJ5.0 and 1.5KE5.0A, the SMCJ5.0 delivers superior surge energy absorption in a compact SMT package with verified ISO 7637-2 compliance and sub-nanosecond response-making it the preferred choice for automotive and industrial systems demanding high-reliability, high-power transient suppression without through-hole assembly.
Availability
SMCJ5.0 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, LED drivers, and sensor interfaces requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMCJ5.0 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs since 1979.
The SMCJ5.0 belongs to TSC's high-power surface-mount TVS family engineered specifically for automotive and industrial transient immunity-balancing clamping precision, surge robustness, and SMT manufacturability.
FAQ
What is the breakdown voltage range of the SMCJ5.0?
The SMCJ5.0 has a guaranteed breakdown voltage range of 6.4V to 7.3V measured at 10mA test current (VBR@IT). This tight tolerance ensures consistent overvoltage triggering across production lots and temperature ranges, critical for protecting 5V–12V logic rails without premature conduction during normal operation. The SMCJ5.0 maintains this specification per ANSI/IEEE C62.35 standards.
Is the SMCJ5.0 unidirectional or bidirectional?
SMCJ5.0 is a unidirectional TVS diode, intended for DC line protection where polarity is fixed (e.g., automotive battery rail). Its cathode band marking indicates the clamping terminal. For bidirectional AC or dual-polarity signal line protection, the SMCJ5.0A variant must be used-both share identical clamping performance but differ in internal construction and leakage behavior.
What is the maximum clamping voltage of the SMCJ5.0 at rated surge current?
The SMCJ5.0 clamps to a maximum of 164V at 1000A peak pulse current (10/1000μs waveform), as specified in its electrical characteristics table. This value represents worst-case clamping under standardized surge conditions and defines the upper voltage limit imposed on protected circuitry-enabling safe selection of downstream components with appropriate voltage margins.
Does the SMCJ5.0 meet automotive transient immunity standards?
Yes, the SMCJ5.0 meets ISO 7637-2 requirements for Pulse 1 (inductive load disconnect), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), validated per manufacturer test reports. Its 1500W rating, fast <1.0ps response, and stable VBR make it suitable for AEC-Q200-compliant designs targeting passenger vehicle and commercial truck ECUs.
What package type does the SMCJ5.0 use and what are its key mechanical features?
The SMCJ5.0 uses the DO-214AB (SMC) surface-mount package: 7.11mm × 6.22mm body, matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. It weighs approximately 0.210g and complies with J-STD-002 solderability and JESD201 Class 2 whisker resistance-ensuring robust automated assembly and long-term interconnect reliability.
SMCJ5.0 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):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.6V
- Current - Peak Pulse (10/1000µs):
- 164A
- 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)
SMCJ5.0 FAQ
1.How can I place an order for SMCJ5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ5.0 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 SMCJ5.0 reliable?
The price and inventory of SMCJ5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ5.0 is usually 5 days.
3.What payment methods are accepted for SMCJ5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ5.0?
SMCJ5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ5.0 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 SMCJ5.0?
For technical support, including SMCJ5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ5.0 requirements.
6.How does Aetrix verify that SMCJ5.0 is sourced from the original manufacturer or authorized distributors?
All SMCJ5.0 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 SMCJ5.0 meets industry standards.
7.What is the process for return or replacement of SMCJ5.0?
All SMCJ5.0 units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ5.0, 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 SMCJ5.0 part is unused and in its original packaging.
Return procedure for SMCJ5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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