My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ9V0A
- Part No.:
- SMCJ9V0A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9V0A.pdf
- Description:
- TVS DIODE 9VWM 15.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,272
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ9V0A from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 9.0V working stand-off voltage (VWM), 10.0–11.1V breakdown voltage (VBR), and 15.4V maximum clamping voltage (VC) at 10A peak impulse current - designed for automotive load-dump and inductive switching surge protection in power supply rails.
For engineers reviewing the SMCJ9V0A datasheet, SMCJ9V0A pinout, SMCJ9V0A application, or SMCJ9V0A equivalent, this device delivers sub-1ps response time, <1μA reverse leakage above 10V, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and robust 150°C junction operation - critical for ESD and fast-transient immunity in automotive ECUs and industrial controllers.
Technical Context
The SMCJ9V0A employs a glass-passivated silicon junction optimized for high-energy transient suppression. Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low VWM to protect downstream 9V-rated circuitry without false triggering.
Thermal design is supported by RθJA = 55°C/W and RθJC = 10°C/W, enabling reliable 5W steady-state dissipation at 25°C ambient. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements for automated SMT assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins; ensures compatibility with 9V nominal systems. |
| VBR min/max | 10.0 / 11.1 V @ IT = 1 mA - Verified breakdown range guarantees predictable turn-on under surge conditions. |
| VC @ IPPM | 15.4 V @ 10 A - Clamping voltage limits stress on protected ICs during 10/1000μs transients per REA standard. |
| PPK | 1500 W - Peak pulse power rating defines single-event surge handling capacity per Fig.5 waveform. |
| IR @ VWM | <1 μA - Ultra-low leakage preserves battery life and avoids false triggers in always-on circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and high-power industrial enclosures. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 2.54 mm lead pitch and 0.210 g mass for automated placement. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, UL 94V-0 rated compound, and J-STD-002 solderability compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to system ground or low-side return path; enables clamping when cathode voltage exceeds VBR. |
| Cathode | Reverse-biased terminal | Connected to protected line (e.g., 9V rail); conducts during positive transients to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance | Validated for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) - essential for automotive OEM qualification. |
| Sub-1 ps response time | Typically <1.0 ps from 0 V to VBR min - faster than most microcontroller I/O response times, ensuring protection precedes damage. |
| Glass passivated junction | Enhances long-term reliability under thermal cycling and humidity exposure versus epoxy-passivated alternatives. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - supports green manufacturing and end-of-life recycling requirements. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 9V-sensed sensor inputs (e.g., door latch, seat position) from load-dump spikes during battery disconnect/reconnect events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input trace and chassis ground to clamp transients before reaching MCU analog front-end. Use Value: Limits clamped voltage to 15.4V, well below 20V absolute maximum ratings of common automotive-grade op-amps and ADCs. |
Use Scenario: Safeguarding 24V DC digital input channels against inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Standoff-rated TVS on field-side input line, absorbing 1500W pulses without degradation across >100,000 cycles. Use Value: Maintains <1μA leakage at 9V, preventing false logic-high detection in high-impedance optocoupler input stages. |
| LED Driver Power Rail Protection | Telecom Power Supply Surge Suppression |
Use Scenario: Shielding constant-current LED driver ICs from flyback voltage spikes generated by MOSFET switching in buck topology. IC Role / Device Role / Timing Role: Parallel-connected TVS across input capacitor to clamp overshoot during MOSFET turn-off transitions. Use Value: 1500W peak rating handles repetitive 10/1000μs surges up to 10A without derating - validated per IEC 61000-4-5. |
Use Scenario: Secondary-side protection on 9V auxiliary rails in telecom power supplies exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Final-stage TVS after primary isolation, limiting transient energy delivered to PMIC and communication ICs. Use Value: 10.0–11.1V VBR range ensures precise coordination with upstream MOVs and gas discharge tubes in multi-stage protection schemes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Lower PPK (600W), same VWM/VBR/VC, SMB package (smaller footprint, higher RθJA = 85°C/W) | Suitable for space-constrained consumer electronics but insufficient for automotive load-dump duty cycles. | Select SMCJ9V0A when 1500W single-pulse capability and ISO 7637-2 compliance are mandatory. |
| 1.5SMC9.0A | Identical electrical specs and DO-214AB package; manufactured by ON Semiconductor with identical marking and test conditions. | No functional difference - accepted as second-source part in many automotive BOMs with full qualification equivalence. | Choose 1.5SMC9.0A only if dual-sourcing or legacy procurement alignment with ON Semi is required. |
Compared with SMBJ9.0A, SMCJ9V0A delivers 2.5× higher surge energy handling and lower thermal resistance for sustained reliability in harsh environments; versus 1.5SMC9.0A, it offers identical performance with Taiwan Semiconductor's qualification pedigree and supply chain flexibility.
Availability
SMCJ9V0A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, LED driver power rails, and telecom auxiliary power supplies requiring stable component supply and long-lifecycle support.
Supply support for SMCJ9V0A 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 SMCJ series was developed specifically for high-reliability automotive and industrial transient suppression, emphasizing ISO 7637-2 compliance, low clamping ratio, and robust thermal performance in surface-mount packages.
FAQ
What is the clamping voltage of SMCJ9V0A at its rated peak pulse current?
The SMCJ9V0A has a maximum clamping voltage (VC) of 15.4 V at 10 A peak impulse current (IPPM), measured under the standardized 10/1000 μs double-exponential waveform per REA definition. This value ensures protected components see no more than 15.4 V during worst-case transients, making SMCJ9V0A suitable for safeguarding 16 V-tolerant ICs in 9 V systems.
Is SMCJ9V0A bidirectional or unidirectional?
SMCJ9V0A is a unidirectional TVS diode, indicated by the absence of "C" or "CA" suffix and confirmed by its single cathode band marking and forward voltage specification (VF = 3.5 V @ 100 A). It conducts only during positive transients on the cathode side and blocks reverse voltage up to –9.0 V - unlike bidirectional variants such as SMCJ9.0CA.
Does SMCJ9V0A meet automotive EMC standards?
Yes, SMCJ9V0A meets ISO 7637-2 requirements for Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), as explicitly stated in the Taiwan Semiconductor datasheet. Its 1500W rating and sub-1 ps response enable compliance with OEM-level transient immunity testing for body electronics and powertrain control units.
What is the maximum junction temperature rating for SMCJ9V0A?
The SMCJ9V0A has a maximum junction temperature (TJ max) of +150 °C, allowing uninterrupted operation in under-hood automotive environments and sealed industrial enclosures. This rating is supported by its RθJC = 10°C/W and RθJA = 55°C/W thermal resistances, enabling safe 5 W steady-state dissipation at 25°C ambient - verified per JEDEC JESD51-14.
Can SMCJ9V0A be used in place of SMCJ9.0A?
Yes - SMCJ9V0A and SMCJ9.0A are identical in electrical specifications, package (DO-214AB), and marking code (GDV); "V0" and ".0" denote the same 9.0 V variant per Taiwan Semiconductor's ordering nomenclature. Both share identical VBR (10.0–11.1 V), VC (15.4 V), and PPK (1500 W), confirming full interchangeability in design and procurement.
SMCJ9V0A 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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 97.4A
- 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)
SMCJ9V0A FAQ
1.How can I place an order for SMCJ9V0A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9V0A 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 SMCJ9V0A reliable?
The price and inventory of SMCJ9V0A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9V0A is usually 5 days.
3.What payment methods are accepted for SMCJ9V0A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9V0A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9V0A?
SMCJ9V0A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9V0A 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 SMCJ9V0A?
For technical support, including SMCJ9V0A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9V0A requirements.
6.How does Aetrix verify that SMCJ9V0A is sourced from the original manufacturer or authorized distributors?
All SMCJ9V0A 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 SMCJ9V0A meets industry standards.
7.What is the process for return or replacement of SMCJ9V0A?
All SMCJ9V0A units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9V0A, 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 SMCJ9V0A part is unused and in its original packaging.
Return procedure for SMCJ9V0A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9V0A 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…
