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Taiwan Semiconductor Corporation SMCJ8V0A
- Part No.:
- SMCJ8V0A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ8V0A.pdf
- Description:
- TVS DIODE 8VWM 13.6VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,630
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Product details
Overview
SMCJ8V0A from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 8.0V working stand-off voltage (VWM), 8.89–9.83V breakdown voltage (VBR), and 13.6V maximum clamping voltage (VC) at 50A peak pulse current-designed for automotive load-dump and inductive switching protection in power supply rails.
For engineers reviewing the SMCJ8V0A datasheet, SMCJ8V0A pinout, SMCJ8V0A application, or SMCJ8V0A 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 unidirectional polarity marking for correct PCB orientation.
Technical Context
The SMCJ8V0A operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (8.89–9.83V @ IT = 1mA); it clamps transients to ≤13.6V at 50A (10/1000μs waveform), delivering 1500W peak pulse power with <1.0ps response time from 0V to VBR min.
Its thermal design supports continuous operation up to TJ = 150°C, with RθJA = 55°C/W and RθJC = 10°C/W; steady-state power dissipation is rated at 5W, and forward voltage is 3.5V @ 100A-consistent with SMCJ5.0–SMCJ90 unidirectional devices per datasheet note 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.0 V - Maximum DC or continuous reverse operating voltage before clamping initiates |
| VBR min/max | 8.89 / 9.83 V @ IT = 1 mA - Ensures reliable turn-on within defined tolerance band under standardized test conditions |
| VC @ IPPM | 13.6 V @ 50 A (10/1000 μs) - Limits downstream circuit voltage during worst-case surge, protecting 12V rail ICs |
| PPK | 1500 W - Peak transient energy absorption capability compliant with ISO 7637-2 Pulse 5a (load dump) |
| IR @ VWM | <1 μA - Negligible leakage at operating voltage, preserving low-power standby integrity |
| TJ max | +150 °C - Enables use in under-hood automotive environments without thermal shutdown |
| Package | DO-214AB (SMC) - Surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, cathode band marking polarity on unidirectional devices; weight ≈ 0.210 g; meets UL 94V-0 and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping node | Connected to protected line (e.g., 12V rail); cathode band identifies this terminal on PCB silkscreen |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity stress |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (switching noise) |
| MSL Level 1 rating | Zero floor life limitation-no bake requirement prior to reflow, supporting standard SMT processes |
| RoHS & halogen-free | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery-fed ECU power input subjected to load dump (ISO 7637-2 Pulse 5a) and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed upstream of DC-DC converter input. Use Value: Clamps surge to ≤13.6V, preventing damage to 16V-rated input capacitors and LDO regulators. | Use Scenario: 24V digital input channel exposed to field-wiring inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Standoff protection element across input terminals, shunting transients before signal conditioning circuitry. Use Value: Absorbs 1500W pulses without degradation, maintaining >10⁶ surge cycles per IEC 61000-4-5. |
| LED Driver Overvoltage Suppression | Telecom Power Interface Protection |
Use Scenario: Constant-current LED driver board powered from 12V supply in outdoor signage, subject to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main DC input bus, coordinated with upstream fuse. Use Value: Fast <1.0ps response ensures clamping before LED driver IC's internal FETs experience avalanche failure. | Use Scenario: 48V PoE-powered remote unit connected via long cables susceptible to EFT and surge coupling. IC Role / Device Role / Timing Role: First-stage transient suppressor on primary DC input, ahead of DC-DC isolation stage. Use Value: 13.6V clamping enables use of lower-voltage-rated input MOSFETs and reduces BOM cost vs. higher-VBR alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | 600W rating, DO-214AA (SMB) package, VC = 12.7V @ 30A | Lower power handling; suitable only for sub-1kW transients and space-constrained layouts | Select SMBJ8.0A only if system-level surge energy is confirmed ≤600W and PCB area limits SMC footprint |
| 1.5SMC8.0A | Same 1500W rating and DO-214AB package, but VBR = 8.5–9.4V, VC = 13.6V @ 50A | Identical clamping performance; differs in manufacturer qualification and AEC-Q200 status (not stated for 1.5SMC series) | Prefer SMCJ8V0A for automotive-grade traceability and documented ISO 7637-2 validation per Taiwan Semiconductor S2104 spec |
Compared with SMBJ8.0A, SMCJ8V0A delivers 2.5× higher surge power margin for load-dump events; versus 1.5SMC8.0A, it offers full ISO 7637-2 test documentation and MSL 1 assurance-critical for high-reliability production programs.
Availability
SMCJ8V0A is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC modules, LED lighting drivers, and telecom power interfaces requiring stable component supply across extended temperature and surge stress conditions.
Supply support for SMCJ8V0A 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 automotive, industrial, and consumer markets since 1979.
The SMCJ series is part of TSC's high-power TVS portfolio, engineered specifically for robust transient immunity in harsh environments-including ISO 7637-2-compliant automotive power systems and IEC 61000-4-5 industrial surge zones.
FAQ
What is the maximum clamping voltage of SMCJ8V0A under standard test conditions?
The SMCJ8V0A has a maximum clamping voltage (VC) of 13.6 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 50 A, as specified in the Taiwan Semiconductor S2104 datasheet. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during transient events. The SMCJ8V0A maintains this clamping performance across its qualified operating temperature range.
Is SMCJ8V0A unidirectional or bidirectional, and how is polarity identified?
SMCJ8V0A is a unidirectional TVS diode, intended for DC applications where reverse polarity is not expected. Polarity is marked by a cathode band on the DO-214AB (SMC) package body; the banded end connects to the protected line (e.g., 12V rail), while the anode connects to ground. Bidirectional variants use "C" or "CA" suffixes (e.g., SMCJ8.0CA), which SMCJ8V0A does not carry.
Does SMCJ8V0A meet automotive transient immunity standards?
Yes, SMCJ8V0A meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (switching noise), as explicitly stated in the Taiwan Semiconductor S2104 datasheet. It is widely deployed in automotive power distribution modules and body control units where certified transient suppression is mandatory.
What is the moisture sensitivity level (MSL) rating for SMCJ8V0A?
SMCJ8V0A is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to surface-mount reflow. This simplifies manufacturing logistics and eliminates moisture-related popcorning risk during lead-free reflow profiles-critical for high-volume automotive and industrial assembly lines.
Can SMCJ8V0A be used in place of SMCJ8.0A?
Yes, SMCJ8V0A is functionally identical to SMCJ8.0A-the "V0" and ".0" suffixes denote the same 8.0V working voltage grade within Taiwan Semiconductor's naming convention. Both share identical electrical specifications, DO-214AB packaging, and qualification data; SMCJ8V0A is the standardized part number used in current TSC documentation and ordering codes.
SMCJ8V0A 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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 110.3A
- 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)
SMCJ8V0A FAQ
1.How can I place an order for SMCJ8V0A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ8V0A 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 SMCJ8V0A reliable?
The price and inventory of SMCJ8V0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ8V0A is usually 5 days.
3.What payment methods are accepted for SMCJ8V0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ8V0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ8V0A?
SMCJ8V0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ8V0A 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 SMCJ8V0A?
For technical support, including SMCJ8V0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ8V0A requirements.
6.How does Aetrix verify that SMCJ8V0A is sourced from the original manufacturer or authorized distributors?
All SMCJ8V0A 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 SMCJ8V0A meets industry standards.
7.What is the process for return or replacement of SMCJ8V0A?
All SMCJ8V0A units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ8V0A, 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 SMCJ8V0A part is unused and in its original packaging.
Return procedure for SMCJ8V0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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