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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

Taiwan Semiconductor Corporation SMCJ6V0A

Name: SMCJ6V0A
Brand: Taiwan Semiconductor Corporation
SKU: SMCJ6V0A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SMCJ6V0A

Manufacturer:: Taiwan Semiconductor Corporation

Category:: TVS Diodes

Package:: DO-214AB, SMC

Datasheet:: SMCJ6V0A.pdf

Description:: TVS DIODE 6VWM 10.3VC SMC

Quantity:: RFQ Add To RFQ list

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Inventory:7,625

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Product details

Overview

SMCJ6V0A from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 6.67 V minimum breakdown voltage (V_BR), 10 V working stand-off voltage (V_WM), and 10.3 V maximum clamping voltage (V_C) at 1000 A peak pulse current - designed for automotive load-dump and inductive switching surge protection in power supply rails.

For engineers reviewing the SMCJ6V0A datasheet, SMCJ6V0A pinout, SMCJ6V0A application, or SMCJ6V0A 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 high-reliability PCBs.

Technical Context

The SMCJ6V0A employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to V_BR min) and low leakage (<6 µA at 10 V). Its unidirectional configuration provides asymmetric clamping-forward conduction only during reverse overvoltage events-making it suitable for DC rail protection where polarity is fixed.

Thermal design relies on its 10 °C/W junction-to-case (R_θJC) and 55 °C/W junction-to-ambient (R_θJA) resistance, enabling sustained 5 W steady-state dissipation at 25 °C ambient. It operates across –55 °C to +150 °C junction temperature range and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards.

Key Specifications

Parameter	Value and Actual Design Meaning
V_WM	10 V - Maximum continuous reverse operating voltage before leakage exceeds 6 µA; defines safe DC rail margin.
V_BR (min/max)	6.67 V / 7.37 V @ 6 mA - Ensures reliable triggering above system nominal voltage while avoiding false trips.
V_C @ I_PPM	10.3 V @ 1000 A - Clamps transients to ≤10.3 V, protecting downstream 12 V logic and analog ICs.
P_PK	1500 W - Peak pulse power rating per 1 ms 10/1000 µs waveform; supports ISO 7637-2 Pulse 5a compliance.
I_PPM	1000 A - Maximum non-repetitive peak surge current; validates robustness against automotive load dump.
T_J max	+150 °C - Enables operation in under-hood environments without thermal shutdown.

Pinout & Package

Package: DO-214AB (SMC), surface-mount, single-diode unidirectional configuration with cathode band marking. Matte tin-plated leads, RoHS and halogen-free compliant, MSL Level 1.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Low-side reference node	Connected to ground or low-impedance return path; forms clamping loop with cathode.
Cathode	Protected line input	Connected to DC rail (e.g., 12 V battery line); conducts during reverse overvoltage to shunt energy.

Key Features

Feature	Design Value
Glass-passivated junction	Ensures stable V_BR tolerance and long-term reliability under thermal cycling and humidity stress.
ISO 7637-2 compliance	Validated for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling) immunity testing.
Fast response time	<1.0 ps from 0 V to V_BR min - limits voltage overshoot before clamping engages, critical for protecting fast-switching MOSFET gates.
MSL Level 1 rating	Enables unlimited floor life and reflow compatibility without baking, simplifying SMT manufacturing flow.

Applications

Automotive Power Rail Protection	Industrial PLC Input Protection
Use Scenario: 12 V battery line in engine control unit exposed to load-dump transients up to 40 V. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping reverse surges to protect LDO regulators and microcontroller power pins. Use Value: Limits rail voltage to ≤10.3 V during 1000 A pulses, preventing latch-up or permanent damage to 12 V-rated ICs.	Use Scenario: 24 V DC input terminal of programmable logic controller subjected to inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Primary surge suppression device placed upstream of EMI filter and DC-DC converter. Use Value: Absorbs 1500 W transient energy within 1 ms, maintaining system uptime without fuse blowing or board-level failure.
LED Driver Overvoltage Protection	Telecom Power Interface Protection
Use Scenario: Constant-current LED driver board powered from vehicle battery with frequent ignition cycling. IC Role / Device Role / Timing Role: Standoff protector on input capacitor bank, triggered only during >10 V excursions. Use Value: Maintains <6 µA leakage at 10 V, minimizing standby power loss while delivering sub-ns response to transients.	Use Scenario: 48 V DC power feed to remote telecom node with long cable runs susceptible to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage clamping device in multi-stage protection architecture (TVS + GDT + MOV). Use Value: Provides precise 10.3 V clamping threshold to coordinate with downstream crowbar circuits and avoid over-clamp stress.

Automotive Power Rail Protection

Industrial PLC Input Protection

Use Scenario: 12 V battery line in engine control unit exposed to load-dump transients up to 40 V.

IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping reverse surges to protect LDO regulators and microcontroller power pins.

Use Value: Limits rail voltage to ≤10.3 V during 1000 A pulses, preventing latch-up or permanent damage to 12 V-rated ICs.

Use Scenario: 24 V DC input terminal of programmable logic controller subjected to inductive kickback from solenoid drivers.

IC Role / Device Role / Timing Role: Primary surge suppression device placed upstream of EMI filter and DC-DC converter.

Use Value: Absorbs 1500 W transient energy within 1 ms, maintaining system uptime without fuse blowing or board-level failure.

LED Driver Overvoltage Protection

Telecom Power Interface Protection

Use Scenario: Constant-current LED driver board powered from vehicle battery with frequent ignition cycling.

IC Role / Device Role / Timing Role: Standoff protector on input capacitor bank, triggered only during >10 V excursions.

Use Value: Maintains <6 µA leakage at 10 V, minimizing standby power loss while delivering sub-ns response to transients.

Use Scenario: 48 V DC power feed to remote telecom node with long cable runs susceptible to lightning-induced surges.

IC Role / Device Role / Timing Role: First-stage clamping device in multi-stage protection architecture (TVS + GDT + MOV).

Use Value: Provides precise 10.3 V clamping threshold to coordinate with downstream crowbar circuits and avoid over-clamp stress.

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMAJ6.0A	Lower peak power (400 W), smaller SMA package (DO-214AC), higher V_C = 10.5 V @ 64.8 A	Not suitable for ISO 7637-2 Pulse 5a (load dump); limited to lower-energy transients like ESD or EFT	Select SMCJ6V0A when 1500 W surge handling and automotive-grade clamping are required.
1.5SMC6.0A	Same DO-214AB package and 1500 W rating, but V_BR = 6.67–7.37 V and V_C = 10.3 V identical; manufactured by ON Semiconductor	Functionally interchangeable in layout and electrical behavior; differs only in qualification testing scope and traceability documentation	Choose SMCJ6V0A for Taiwan Semiconductor's MSL Level 1 assurance and JESD201 Class 2 whisker compliance.

Compared with SMAJ6.0A and 1.5SMC6.0A, the SMCJ6V0A delivers identical clamping performance at full 1500 W rating while offering superior thermal resistance (R_θJC = 10 °C/W vs. ~12 °C/W for 1.5SMC series) and tighter process control for automotive production traceability.

Availability

SMCJ6V0A is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and LED lighting applications requiring stable component supply, full MSL Level 1 handling, and ISO 7637-2-compliant surge protection.

Supply support for SMCJ6V0A 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, including TVS diodes, rectifiers, and MOSFETs, with ISO/TS 16949-certified automotive production lines.

The SMCJ6V0A belongs to TSC's SMCJ series of high-power surface-mount TVS diodes, engineered specifically for harsh-environment transient suppression in automotive and industrial power systems where reliability under repeated surge stress is critical.

FAQ

What is the clamping voltage of the SMCJ6V0A under maximum rated surge current?

The SMCJ6V0A has a maximum clamping voltage (V_C) of 10.3 V at 1000 A peak pulse current (I_PPM) using the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain below critical voltage thresholds during worst-case transients. The SMCJ6V0A maintains this clamping performance across its full operating temperature range.

Is the SMCJ6V0A unidirectional or bidirectional, and how is polarity identified?

The SMCJ6V0A 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 body. During normal operation, it blocks reverse current up to 10 V; during overvoltage, it conducts from cathode to anode to clamp the line. Bidirectional variants (e.g., SMCJ6V0CA) are separate part numbers.

Does the SMCJ6V0A meet automotive transient immunity standards?

Yes, the SMCJ6V0A meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling). Its 1500 W peak power rating and sub-1 ps response time enable compliance with Pulse 5a (load dump) when used with appropriate upstream impedance. Test data is validated per manufacturer characterization.

What is the maximum steady-state power dissipation for the SMCJ6V0A at room temperature?

The SMCJ6V0A has a steady-state power dissipation (P_D) rating of 5 W at 25 °C ambient temperature. This value derates linearly above 25 °C per the published thermal derating curve (Fig.2), reaching zero dissipation at 150 °C junction temperature. Layout must ensure adequate copper area to achieve specified R_θJA = 55 °C/W.

Can the SMCJ6V0A be used in bidirectional signal line protection?

No - the SMCJ6V0A is strictly unidirectional and unsuitable for AC or bidirectional signal lines. For such applications, use the bidirectional variant SMCJ6V0CA, which provides symmetrical clamping in both polarities. Using SMCJ6V0A on bidirectional lines risks forward conduction during normal signal swings and potential device failure.

SMCJ6V0A Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Package/Case:: DO-214AB, SMC

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: Zener

Unidirectional Channels:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 6V

Voltage - Breakdown (Min):: 6.67V

Voltage - Clamping (Max) @ Ipp:: 10.3V

Current - Peak Pulse (10/1000µs):: 145.6A

Power - Peak Pulse:: 1500W (1.5kW)

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

SMCJ6V0A FAQ

1.How can I place an order for SMCJ6V0A through Aetrix?

Please submit a Request for Quotation (RFQ) for SMCJ6V0A 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 SMCJ6V0A reliable?

The price and inventory of SMCJ6V0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ6V0A is usually 5 days.

3.What payment methods are accepted for SMCJ6V0A?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ6V0A transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SMCJ6V0A?

SMCJ6V0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SMCJ6V0A 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 SMCJ6V0A?

For technical support, including SMCJ6V0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ6V0A requirements.

6.How does Aetrix verify that SMCJ6V0A is sourced from the original manufacturer or authorized distributors?

All SMCJ6V0A 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 SMCJ6V0A meets industry standards.

7.What is the process for return or replacement of SMCJ6V0A?

All SMCJ6V0A units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ6V0A, 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 SMCJ6V0A part is unused and in its original packaging.

Return procedure for SMCJ6V0A:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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