My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ9.0A-E3/9AT
- Part No.:
- SMCJ9.0A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0A-E3/9AT.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,110
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ9.0A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, with 9.0 V standoff voltage (VWM), 10.0–11.1 V breakdown voltage (VBR at 1.0 mA), and 1500 W peak pulse power (10/1000 μs). It clamps transients to ≤15.4 V at 97.4 A peak surge current and is rated for automotive-grade operation per AEC-Q101 when ordered with HE3 suffix.
For engineers reviewing the SMCJ9.0A-E3/9AT datasheet, SMCJ9.0A-E3/9AT pinout, SMCJ9.0A-E3/9AT application, or SMCJ9.0A-E3/9AT equivalent, this device is selected for robust overvoltage protection on DC power rails and low-speed signal lines in automotive ECUs, industrial PLC I/O modules, and sensor interface circuits where fast response (<1 ns), low clamping ratio, and high surge immunity are required.
Technical Context
The SMCJ9.0A-E3/9AT operates as a unidirectional avalanche diode, conducting only in reverse bias above its breakdown threshold to shunt transient energy to ground. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<10 μA at 9.0 V), while its low incremental surge resistance enables tight clamping under high-current transients.
Designed for surface-mount assembly on standard PCB copper pads (8.0 mm × 8.0 mm per terminal), it meets J-STD-020 MSL Level 1, supports reflow up to 260 °C peak, and delivers thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead) - critical for sustained power dissipation in compact layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before conduction begins; sets safe margin below system supply (e.g., 12 V automotive rail) |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Confirmed breakdown range ensures reliable triggering without premature conduction |
| VC @ IPPM | 15.4 V at 97.4 A - Clamping voltage defines worst-case overvoltage seen by protected IC during 10/1000 μs surge |
| PPPM | 1500 W - Peak pulse power rating determines survivability against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges |
| IPPM | 97.4 A - Peak surge current capacity directly correlates to energy absorption (E = VC × IPPM × tp) |
| TJ max | +150 °C - Maximum junction temperature enables operation in under-hood automotive environments |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
SMCJ9.0A-E3/9AT uses the SMC (DO-214AB) package: a 2-terminal surface-mount case with cathode band marking on the anode-side end. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient return path | Connected to system ground or low-impedance return node; carries full surge current during clamping |
| Anode | Protected line input | Connected to the line being protected (e.g., +12 V rail or sensor output); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMC package | Enables placement in space-constrained automotive and industrial PCBs without height interference |
| 1500 W peak pulse power | Withstands multiple ISO 7637-2 Pulse 5a events (500 W typical) without degradation |
| Clamping ratio VC/VBR ≈ 1.44 | Minimizes overvoltage stress on downstream MOSFETs or microcontrollers during surge events |
| AEC-Q101 qualification option | HE3-suffix variants undergo stress testing for automotive reliability (temperature cycling, HTRB, etc.) |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and single-reflow processing without baking |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed control modules (e.g., body control units) from load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients before they reach LDOs or MCU power pins. Use Value: Limits voltage excursion to ≤15.4 V during 100 A surge, preventing latch-up or gate oxide damage in 3.3 V/5 V logic supplies. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: TVS mounted at sensor connector to absorb ESD (IEC 61000-4-2) and fast transients (IEC 61000-4-4) on 4–20 mA or 0–10 V lines. Use Value: Sub-1 ns response time prevents transient coupling into precision ADC front-ends, maintaining measurement integrity. |
| DC Motor Drive Board Protection | Telecom Power Supply Input Stage |
Use Scenario: Shielding H-bridge gate drivers and current sense amplifiers from back-EMF spikes generated by brushed DC motors. IC Role / Device Role / Timing Role: TVS placed across motor terminals and/or on driver supply inputs to divert inductive kickback energy. Use Value: 1500 W rating handles repetitive 50–100 A spikes at 100 Hz PWM frequency without thermal runaway. | Use Scenario: Front-end surge suppression on 48 V telecom rectifier outputs feeding base station RF modules. IC Role / Device Role / Timing Role: Primary TVS stage before DC-DC converters to meet IEC 61000-4-5 Level 4 (4 kV line-earth) Use Value: Low VWM/VBR ratio ensures no false triggering during 48 V nominal ripple, while 15.4 V clamping protects downstream SiC FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC9.0 | Same VWM (9.0 V), lower PPPM (600 W), DO-214AC (SMA) package | Lower surge capability; suitable only for ESD-only or low-energy transients | Select SAC9.0 only if system-level surge testing is limited to IEC 61000-4-2 ±8 kV contact discharge. |
| 1.5KE9.1A | Through-hole TO-218 package, same VWM/VBR, PPPM = 1500 W, but higher VC = 15.7 V | Requires through-hole assembly; less suitable for automated SMT lines | Choose 1.5KE9.1A only when board layout prohibits SMC footprint or thermal mass demands larger heatsinking. |
Compared with SAC9.0 and 1.5KE9.1A, the SMCJ9.0A-E3/9AT provides optimal balance of high surge rating, SMT compatibility, and tight clamping in automotive and industrial designs - making it preferred for new SMT-based platforms requiring AEC-Q101 readiness and 1500 W immunity.
Availability
SMCJ9.0A-E3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controller I/O modules, and telecom power supply input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ9.0A-E3/9AT 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What is the maximum clamping voltage of the SMCJ9.0A-E3/9AT under a 10/1000 µs surge?
The SMCJ9.0A-E3/9AT has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current of 97.4 A using the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88394. The SMCJ9.0A-E3/9AT maintains this clamping performance across its operational temperature range of –55 °C to +150 °C.
Is the SMCJ9.0A-E3/9AT RoHS-compliant and halogen-free?
Yes, the SMCJ9.0A-E3/9AT carries the "E3" suffix, indicating it is RoHS-compliant and meets commercial-grade material requirements per Vishay's ordering nomenclature. It is not halogen-free; for halogen-free compliance, the "M3" suffix variant (e.g., SMCJ9.0A-M3/9AT) must be selected. Both E3 and M3 versions satisfy JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability standards.
Does the SMCJ9.0A-E3/9AT have AEC-Q101 qualification?
No, the SMCJ9.0A-E3/9AT itself is not AEC-Q101 qualified. AEC-Q101 qualification applies only to variants with "HE3" or "HM3" suffixes (e.g., SMCJ9.0AHE3_A/I). The "E3" suffix denotes RoHS-compliant commercial grade. For automotive applications requiring AEC-Q101 validation, engineers must specify the HE3-suffix version of the SMCJ9.0A-E3/9AT family.
What is the thermal resistance of the SMCJ9.0A-E3/9AT, and how does it affect PCB layout?
The SMCJ9.0A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W, measured on 8.0 mm × 8.0 mm copper pads per terminal. To maintain safe junction temperatures under repeated surges, PCB layout must provide minimum recommended pad area and avoid thermal isolation - insufficient copper will cause RθJA to exceed 75 °C/W and risk thermal failure during high-duty-cycle transients.
Can the SMCJ9.0A-E3/9AT be used in bidirectional configurations?
No, the SMCJ9.0A-E3/9AT is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., SMCJ9.0CA), which has symmetrical breakdown in both polarities. Using the SMCJ9.0A-E3/9AT in reverse-biased signal paths without proper polarity alignment will result in forward conduction and potential damage - always verify polarity during placement.
SMCJ9.0A-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ9.0A-E3/9AT FAQ
1.How can I place an order for SMCJ9.0A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0A-E3/9AT 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 SMCJ9.0A-E3/9AT reliable?
The price and inventory of SMCJ9.0A-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ9.0A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0A-E3/9AT?
SMCJ9.0A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0A-E3/9AT 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 SMCJ9.0A-E3/9AT?
For technical support, including SMCJ9.0A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0A-E3/9AT requirements.
6.How does Aetrix verify that SMCJ9.0A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0A-E3/9AT 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 SMCJ9.0A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ9.0A-E3/9AT?
All SMCJ9.0A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0A-E3/9AT, 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 SMCJ9.0A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ9.0A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0A-E3/9AT 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
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
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 …
