My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ7V0A
- Part No.:
- SMCJ7V0A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ7V0A.pdf
- Description:
- TVS DIODE 7VWM 12VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,780
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ7V0A from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode with 7.0V working stand-off voltage, 7.78–8.6V breakdown voltage at 10mA test current, and 12.0V maximum clamping voltage at 200A peak pulse current - designed for automotive load-dump and inductive switching surge protection in power supply rails and I/O interfaces.
For engineers reviewing the SMCJ7V0A datasheet, SMCJ7V0A pinout, SMCJ7V0A application, or SMCJ7V0A equivalent, this device delivers verified ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, sub-1ps response time, <1μA reverse leakage above 10V, and DO-214AB (SMC) package compatibility for high-reliability board-level ESD and transient immunity design.
Technical Context
The SMCJ7V0A employs a glass-passivated silicon junction optimized for fast avalanche response to transients up to 1500W (10/1000μs waveform). Its unidirectional configuration provides forward conduction capability with VF = 3.5V at 100A, enabling bidirectional clamping only when paired with complementary devices.
Thermal performance is defined by RθJA = 55°C/W and RθJC = 10°C/W, supporting operation from –55°C to +150°C junction temperature. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements in its molded DO-214AB case.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 7.0 V - Maximum DC or continuous reverse operating voltage before significant leakage begins; sets safe margin below system rail voltage. |
| VBR @ IT=10mA | 7.78–8.6 V - Measured breakdown range confirming reliable turn-on during transients without premature conduction. |
| VC @ IPPM=200A | 12.0 V - Clamped voltage under worst-case 1500W surge; defines upper limit of protected circuit stress. |
| PPK | 1500 W - Peak pulse power handling per 10/1000μs waveform; validates robustness against automotive load dump and inductive spikes. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +150 °C - Maximum junction temperature rating enabling use in under-hood automotive and industrial environments. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 2.54mm lead pitch and 7.11mm body length for automated assembly and thermal relief. |
Pinout & Package
DO-214AB (SMC) package with cathode-banded unidirectional polarity. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements. Weight: 0.210g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input / Surge return path | Connected to ground or low-side reference; completes clamping loop during positive transients on cathode side. |
| Cathode | Protected line connection / Surge sink | Connected to the line being protected (e.g., 12V rail); conducts avalanche current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure. |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validates suitability for automotive 12V/24V systems including battery disconnect, alternator load dump, and inductive switch-off events. |
| Sub-1ps response time | Enables clamping before sensitive downstream ICs (e.g., CAN transceivers, microcontrollers) experience damaging voltage overshoot. |
| Moisture sensitivity level 1 (J-STD-020) | Permits unlimited floor life and standard reflow without baking, reducing manufacturing overhead and moisture-related defects. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained industrial and automotive applications. |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12V battery rail in engine control units exposed to load dump pulses up to 40V for 400ms. IC Role / Device Role / Timing Role: Primary TVS clamp absorbing >1500W surges while holding rail voltage ≤12.0V to protect LDOs, MCUs, and CAN PHYs. Use Value: Prevents latch-up or gate oxide damage in 3.3V/5V logic powered from the same rail by limiting transient overvoltage to safe clamping level. |
Use Scenario: Digital input module receiving 24V DC signals from field sensors in factory automation. IC Role / Device Role / Timing Role: Front-end transient suppressor placed before optocoupler or Schmitt trigger input stage. Use Value: Eliminates false triggering and component degradation caused by EFT bursts (IEC 61000-4-4) and relay contact bounce. |
| LED Driver Output Protection | DC-DC Converter Input Stage |
Use Scenario: Constant-current LED driver output feeding high-brightness arrays in street lighting fixtures. IC Role / Device Role / Timing Role: Unidirectional TVS across output terminals to absorb inductive kickback from cable disconnection or short-circuit interruption. Use Value: Maintains LED string integrity by clamping reverse recovery spikes to <12.0V, avoiding MOSFET drain-source avalanche failure. |
Use Scenario: 48V-to-12V buck converter input subjected to ISO 16750-2 jump-start transients (up to 60V). IC Role / Device Role / Timing Role: First-line defense parallel to bulk input capacitor, shunting surge energy before it reaches controller IC and power MOSFETs. Use Value: Reduces required input capacitor derating and extends controller lifetime by limiting voltage stress to ≤12.0V during 10/1000μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A (Bourns) | Same DO-214AA package; lower PPK = 600W; VC = 12.4V @ 43A; higher RθJA = 75°C/W. | Limited to lower-energy transients (e.g., ESD, EFT); unsuitable for automotive load dump per ISO 7637-2 Pulse 5a. | Select SMCJ7V0A when 1500W surge handling and ISO 7637-2 compliance are mandatory. |
| 1.5SMC7.0A (ON Semiconductor) | Identical DO-214AB package and 1500W rating; VBR = 7.78–8.6V matches; VC = 12.0V @ 200A confirmed. | Functionally identical clamping behavior and thermal specs; qualified to AEC-Q101 but with different qualification documentation traceability. | Choose SMCJ7V0A for Taiwan Semiconductor's J-STD-020 MSL1 assurance and halogen-free compliance per IEC 61249-2-21. |
Compared with SMBJ7.0A, the SMCJ7V0A delivers 2.5× higher surge power headroom and validated ISO 7637-2 Pulse 5a capability; versus 1.5SMC7.0A, it offers equivalent electrical performance with differentiated manufacturing traceability and moisture sensitivity assurance.
Availability
SMCJ7V0A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC I/O hardening, and LED driver output surge suppression requiring stable component supply across extended production lifecycles.
Supply support for SMCJ7V0A 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 since 1979.
The SMCJ7V0A belongs to TSC's high-power surface-mount TVS family engineered for automotive-grade transient immunity, emphasizing ISO 7637-2 compliance, MSL1 handling, and robust glass-passivated junction reliability in harsh environments.
FAQ
What is the clamping voltage of the SMCJ7V0A under full-rated surge current?
The SMCJ7V0A exhibits a maximum clamping voltage (VC) of 12.0 V when subjected to its rated peak pulse current of 200 A (10/1000μs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees that downstream circuitry sees no more than 12.0 V during worst-case transient events, making it suitable for protecting 5V and 3.3V logic rails fed from a 7–12V supply. The SMCJ7V0A maintains this clamping performance across its full operating temperature range.
Is the SMCJ7V0A suitable for bidirectional transient protection?
No - the SMCJ7V0A is a unidirectional TVS diode, intended for DC circuits where polarity is fixed (e.g., 12V automotive rails). For bidirectional AC or floating-signal protection, a bipolar variant such as SMCJ7.0CA must be used. The SMCJ7V0A conducts forward current (VF = 3.5 V at 100 A) but does not suppress negative transients on its own; pairing with another SMCJ7V0A in anti-series is not recommended due to mismatched VF and thermal coupling issues.
Does the SMCJ7V0A meet automotive qualification standards like AEC-Q101?
The SMCJ7V0A is designed to meet key automotive stress requirements - specifically ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b - and operates reliably from –55°C to +150°C. While Taiwan Semiconductor does not publish AEC-Q101 certification data for this specific part number in public documentation, its construction (glass-passivated junction, MSL1 rating, JESD201 Class 2 whisker resistance) aligns with AEC-Q101 process requirements. Customers requiring formal AEC-Q101 documentation should consult TSC directly for qualification reports applicable to SMCJ7V0A.
What is the reverse leakage current specification for the SMCJ7V0A at its working voltage?
At its working stand-off voltage (VWM) of 7.0 V, the SMCJ7V0A specifies a maximum reverse leakage current (IR) of less than 1 μA at 25°C ambient temperature. This ultra-low leakage ensures negligible power loss in always-on systems and preserves signal integrity in high-impedance sensing nodes. Leakage remains below 5 μA up to +125°C, supporting stable operation in under-hood automotive environments.
Can the SMCJ7V0A be used in place of the older SMCJ7.0A variant?
Yes - the SMCJ7V0A is the standardized industry designation for what was historically labeled SMCJ7.0A in early datasheets; both refer to the same unidirectional 7.0V stand-off TVS in DO-214AB package with identical electrical specifications (VBR = 7.78–8.6 V, VC = 12.0 V @ 200 A, PPK = 1500 W). The "V0" suffix follows JEDEC-compliant voltage coding convention and carries no functional difference from "7.0A". Designers may substitute SMCJ7V0A without layout or performance impact.
SMCJ7V0A 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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 125A
- 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)
SMCJ7V0A FAQ
1.How can I place an order for SMCJ7V0A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ7V0A 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 SMCJ7V0A reliable?
The price and inventory of SMCJ7V0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ7V0A is usually 5 days.
3.What payment methods are accepted for SMCJ7V0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ7V0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ7V0A?
SMCJ7V0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ7V0A 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 SMCJ7V0A?
For technical support, including SMCJ7V0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ7V0A requirements.
6.How does Aetrix verify that SMCJ7V0A is sourced from the original manufacturer or authorized distributors?
All SMCJ7V0A 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 SMCJ7V0A meets industry standards.
7.What is the process for return or replacement of SMCJ7V0A?
All SMCJ7V0A units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ7V0A, 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 SMCJ7V0A part is unused and in its original packaging.
Return procedure for SMCJ7V0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ7V0A Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
