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Vishay General Semiconductor - Diodes Division SMCJ9.0-E3/57T
- Part No.:
- SMCJ9.0-E3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0-E3/57T.pdf
- Description:
- TVS DIODE 9VWM 16.9VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,177
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Product details
Overview
SMCJ9.0-E3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage protection of sensitive electronics. It features a 9.0 V standoff voltage (VWM), 10.0–11.1 V breakdown range (VBR at 1.0 mA), 15.4 V clamping voltage (VC) at 97.4 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - ideal for automotive power line and industrial I/O port surge protection.
For engineers reviewing the SMCJ9.0-E3/57T datasheet, SMCJ9.0-E3/57T pinout, SMCJ9.0-E3/57T application, or SMCJ9.0-E3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 9.0 V and rapidly transitions to low-impedance conduction above its 10.0–11.1 V breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable clamping performance under repetitive transients.
Designed for unidirectional protection only, it exhibits forward voltage drop of 3.5 V at 100 A (per spec note 6), supports 200 A non-repetitive 8.3 ms surge current (IFSM), and maintains operation across –55 °C to +150 °C junction temperature range with thermal resistance RθJA = 75 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - precise breakdown threshold defining turn-on consistency |
| VC @ IPPM | 15.4 V at 97.4 A - clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak pulse power handling per 10/1000 µs waveform, enabling IEC 61000-4-5 Level 4 compliance |
| IFSM | 200 A - surge current rating for 8.3 ms half-sine wave, supporting automotive load dump immunity |
| TJ Range | –55 °C to +150 °C - wide operating temperature window suitable for under-hood automotive use |
| Leakage (ID) | ≤1.0 µA at 9.0 V - minimal standby power loss and signal integrity impact in high-impedance circuits |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to protected circuit ground or low-side return path; conducts during positive transients when cathode is biased higher |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); enters avalanche conduction when line voltage exceeds VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under humidity and thermal stress |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
| UL 94 V-0 molding compound | Flame-retardant encapsulation required for automotive and industrial safety certifications |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control units (ECUs) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery input and DC/DC converter input stage. Use Value: Limits transient voltage to ≤15.4 V during 1500 W surges, preventing damage to downstream LDOs and microcontrollers rated for 16 V max input. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLC modules from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-leakage (≤1.0 µA) TVS connected across differential signal pair and ground to preserve signal fidelity. Use Value: Clamps fast transients (<1 ns rise time) without distorting mV-level sensor signals due to low capacitance and sub-µA leakage. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
Use Scenario: Safeguarding 48 V PoE-powered equipment inputs against lightning-induced surges on outdoor Ethernet lines. IC Role / Device Role / Timing Role: Primary-stage TVS on DC input before isolation transformer and secondary-side regulation. Use Value: Handles 1500 W peak pulses while maintaining <1.0 µA leakage at 48 V nominal - critical for energy-efficient standby modes. | Use Scenario: Adding secondary-level surge protection on VBUS line of USB-C ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS placed after USB power delivery controller to absorb hot-plug transients and ESD events. Use Value: Fast response (<1 ps) and low clamping (15.4 V) prevent latch-up in USB PD ICs rated for 20 V absolute max, extending field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/61 | Lower PPPM (400 W), smaller SMA package (DO-214AC), same VWM/VBR specs | Not suitable for 1500 W IEC 61000-4-5 Level 4; limited to lower-energy transients (e.g., IEC 61000-4-2 ESD) | Select when board space is constrained and surge energy is ≤400 W |
| SMCJ9.0AHE3/57T | Identical electrical specs but AEC-Q101 qualified version (HE3 suffix); same DO-214AB package and pinout | Required for automotive OEM designs needing full AEC-Q101 documentation and traceability | Select when automotive qualification and extended test reporting are mandatory |
Compared with SMCJ9.0-E3/57T, SMAJ9.0A-E3/61 offers footprint savings at the cost of 73% lower surge power handling, while SMCJ9.0AHE3/57T provides identical protection performance with certified automotive reliability - making the latter a drop-in upgrade for AEC-compliant systems.
Availability
SMCJ9.0-E3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLC I/O modules, telecom power supplies, and consumer USB-C power delivery systems requiring stable component supply and consistent surge immunity performance.
Supply support for SMCJ9.0-E3/57T 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 application-specific optimization.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure resilience is mission-critical.
FAQ
What is the polarity configuration of the SMCJ9.0-E3/57T?
The SMCJ9.0-E3/57T is a unidirectional transient voltage suppressor diode. Its cathode is marked by a band on the DO-214AB package body, and it conducts only when the cathode is at a higher potential than the anode - making it suitable for DC line protection where polarity is fixed. Unlike bi-directional variants (e.g., SMCJ9.0CA), it does not conduct symmetrically in both directions.
Does the SMCJ9.0-E3/57T meet automotive qualification standards?
Yes, the SMCJ9.0-E3/57T is RoHS-compliant and meets JESD 201 Class 1A whisker testing, but it is the commercial-grade variant (E3 suffix). For full AEC-Q101 qualification, the part number SMCJ9.0AHE3/57T must be used - which shares identical electrical specs and package but includes extended reliability testing required for automotive applications.
What is the maximum clamping voltage of the SMCJ9.0-E3/57T under surge conditions?
The SMCJ9.0-E3/57T has a maximum clamping voltage (VC) of 15.4 V at 97.4 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by downstream components during a full-rated 1500 W transient event.
Can the SMCJ9.0-E3/57T be used in bi-directional protection circuits?
No, the SMCJ9.0-E3/57T is strictly unidirectional and must not be used in AC or bi-directional signal paths. For bi-directional protection, Vishay specifies the SMCJ9.0CA variant - which has symmetrical breakdown characteristics and no polarity marking. Using SMCJ9.0-E3/57T in such applications risks failure during reverse-polarity transients.
What is the thermal resistance and mounting requirement for optimal performance of the SMCJ9.0-E3/57T?
The SMCJ9.0-E3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain safe junction temperatures under repeated surges, PCB layout must provide adequate copper area and avoid excessive trace length between the SMCJ9.0-E3/57T and ground plane.
SMCJ9.0-E3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 16.9V
- Current - Peak Pulse (10/1000µs):
- 88.8A
- 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)
SMCJ9.0-E3/57T FAQ
1.How can I place an order for SMCJ9.0-E3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0-E3/57T 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 SMCJ9.0-E3/57T reliable?
The price and inventory of SMCJ9.0-E3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0-E3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ9.0-E3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0-E3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0-E3/57T?
SMCJ9.0-E3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0-E3/57T 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 SMCJ9.0-E3/57T?
For technical support, including SMCJ9.0-E3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0-E3/57T requirements.
6.How does Aetrix verify that SMCJ9.0-E3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0-E3/57T 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 SMCJ9.0-E3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ9.0-E3/57T?
All SMCJ9.0-E3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0-E3/57T, 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 SMCJ9.0-E3/57T part is unused and in its original packaging.
Return procedure for SMCJ9.0-E3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0-E3/57T Tags
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