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Vishay General Semiconductor - Diodes Division SMCJ9.0A-M3/57T
- Part No.:
- SMCJ9.0A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0A-M3/57T.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,669
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Product details
Overview
SMCJ9.0A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients on power and signal lines. It features a 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage at 97.4 A peak pulse current (10/1000 µs), and 1500 W peak pulse power dissipation - optimized for protecting MOSFETs, ICs, and sensor interfaces in automotive and industrial power rails.
For engineers reviewing the SMCJ9.0A-M3/57T datasheet, SMCJ9.0A-M3/57T pinout, SMCJ9.0A-M3/57T application, or SMCJ9.0A-M3/57T equivalent, key selection criteria include its unidirectional polarity, 10.0–11.1 V breakdown voltage range at 1 mA test current, halogen-free RoHS-compliant construction (M3 suffix), and AEC-Q101 qualification readiness via HM3 variants.
Technical Context
The SMCJ9.0A-M3/57T operates as a silicon avalanche diode with glass-passivated junction, delivering sub-nanosecond response to ESD and surge events. Its low incremental surge resistance ensures stable clamping under high-current transients, while thermal resistance (RθJA = 75 °C/W) supports operation up to 150 °C junction temperature.
Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. The cathode band denotes polarity; no marking is used for bidirectional versions - but SMCJ9.0A-M3/57T is unidirectional per part numbering and electrical table entry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum reverse working voltage before clamping begins; defines safe operating margin for 9 V nominal rails. |
| VBR min/max | 10.0 V / 11.1 V at IT = 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on above system overvoltage thresholds. |
| VC @ IPPM | 15.4 V at 97.4 A (10/1000 µs) - Clamping voltage under full-rated surge; limits downstream device stress during lightning or inductive switch transients. |
| PPPM | 1500 W - Peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on properly laid out PCBs. |
| IPPM | 97.4 A - Maximum non-repetitive surge current; validated with 10/1000 µs waveform per ANSI/IEEE C62.35. |
| TJ max | 150 °C - Maximum junction temperature; supports under-hood automotive and industrial ambient conditions without derating. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal performance. |
Pinout & Package
SMCJ9.0A-M3/57T uses the SMC (DO-214AB) package: a rectangular, low-profile, surface-mount case with matte tin-plated leads solderable per J-STD-002. Polarity is marked by a cathode band on the body end; anode is opposite.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line (e.g., VIN); conducts surge current to ground when VLINE exceeds VBR. |
| Anode | Reference/return path | Typically tied to system ground or low-impedance return plane; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against severe transients like ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems. |
| 10.0–11.1 V breakdown range at 1 mA | Guarantees consistent turn-on behavior across production lots, supporting deterministic overvoltage margin design. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for global industrial and automotive supply chains without compromising surge performance. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates baking requirements and simplifies SMT manufacturing flow. |
| Low clamping ratio (VC/VWM = 1.71) | Minimizes voltage overshoot during clamping - critical for safeguarding 12 V logic interfaces and gate drivers with tight VDS margins. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load dump transients (up to 60 V, 100 ms) on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp surges before DC/DC converter input stage. Use Value: Limits peak voltage to ≤15.4 V during 97.4 A surge, preventing damage to upstream PMICs and microcontrollers rated for 16 V absolute maximum. | Use Scenario: Protecting analog outputs of pressure/temperature sensors connected to PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt induced surges from long cables before reaching op-amp signal conditioning circuitry. Use Value: Clamps 1 kV/500 Ω IEC 61000-4-5 surges to <16 V, preserving 12-bit ADC accuracy and avoiding latch-up in precision instrumentation amplifiers. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Safeguarding primary-side controllers in universal-input AC/DC adapters against line surge events per IEC 61000-4-5. IC Role / Device Role / Timing Role: Placed across bulk capacitor input to absorb differential-mode surges before bridge rectifier and controller IC. Use Value: Withstands repeated 1500 W pulses without degradation, extending adapter lifetime in regions with unstable grid voltage and frequent lightning activity. | Use Scenario: Protecting -48 V DC telecom power distribution boards from accidental short-circuit recovery spikes and hot-swap transients. IC Role / Device Role / Timing Role: Mounted directly at PSE port entry to clamp fast-rising edge transients (<1 ns) before PoE controller and Ethernet PHY. Use Value: Sub-ns response time and 15.4 V clamping ensure -48 V rail remains within ±5% tolerance during 100 A surge events, maintaining link integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-M3 | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Not suitable for >50 A surge events; limited to low-energy consumer interfaces | Select only when space-constrained and surge energy is ≤200 mJ. |
| SMCJ9.0CA-M3 | Bidirectional variant; same VWM, VC, and PPPM but symmetric clamping in both polarities | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN bus) where polarity reversal occurs | Choose when protecting differential pairs or ungrounded data lines - not a drop-in replacement for unidirectional use. |
Compared with SMAJ9.0A-M3, SMCJ9.0A-M3/57T delivers 3.75× higher surge power handling and superior thermal performance; versus SMCJ9.0CA-M3, it offers lower leakage and tighter VBR tolerance for DC rail protection, but lacks bidirectional symmetry required for AC signal paths.
Availability
SMCJ9.0A-M3/57T is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power distribution requiring stable component supply with halogen-free compliance and MSL Level 1 handling.
Supply support for SMCJ9.0A-M3/57T 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 is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure resilience and long-term stability under surge stress are mandatory.
FAQ
What is the breakdown voltage range of the SMCJ9.0A-M3/57T?
The SMCJ9.0A-M3/57T has a guaranteed breakdown voltage (VBR) range of 10.0 V to 11.1 V at a test current of 1 mA, as specified in the Vishay datasheet revision 09-Jan-2024. This range ensures consistent clamping initiation across process variation and temperature, making SMCJ9.0A-M3/57T suitable for precise overvoltage protection on 9 V nominal rails where margin control is critical.
Is the SMCJ9.0A-M3/57T RoHS-compliant and halogen-free?
Yes, the SMCJ9.0A-M3/57T carries the "M3" suffix, indicating it is both RoHS-compliant and halogen-free per Vishay's material categorization standard (document 99912). This makes SMCJ9.0A-M3/57T acceptable for environmentally regulated markets including EU automotive and industrial equipment, with no exemptions required for brominated flame retardants or chlorine-based compounds.
What is the maximum clamping voltage of the SMCJ9.0A-M3/57T under surge conditions?
The SMCJ9.0A-M3/57T exhibits 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 at the device terminals under defined thermal conditions and directly determines the peak stress imposed on downstream components - a key parameter for validating protection of 12 V logic and power ICs in SMCJ9.0A-M3/57T designs.
Can the SMCJ9.0A-M3/57T be used in automotive applications?
While the base SMCJ9.0A-M3/57T is commercial-grade, Vishay offers AEC-Q101 qualified variants under the HM3 suffix (e.g., SMCJ9.0A-HM3/57T). The SMCJ9.0A-M3/57T itself shares identical electrical and mechanical specifications and is widely deployed in non-safety-critical automotive subsystems such as infotainment power supplies and body electronics, provided system-level qualification is completed per OEM requirements.
What package type does the SMCJ9.0A-M3/57T use, and what are its mounting requirements?
The SMCJ9.0A-M3/57T uses the SMC (DO-214AB) surface-mount package, with recommended copper pad dimensions of 0.31" × 0.31" (8.0 mm × 8.0 mm) per terminal to achieve rated thermal and surge performance. It is compatible with standard reflow profiles (MSL Level 1, peak 260 °C) and requires cathode-band orientation verification during placement - a critical step to ensure correct polarity in SMCJ9.0A-M3/57T protection circuits.
SMCJ9.0A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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 (SMC)
SMCJ9.0A-M3/57T FAQ
1.How can I place an order for SMCJ9.0A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0A-M3/57T 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 SMCJ9.0A-M3/57T reliable?
The price and inventory of SMCJ9.0A-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ9.0A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0A-M3/57T?
SMCJ9.0A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0A-M3/57T 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 SMCJ9.0A-M3/57T?
For technical support, including SMCJ9.0A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0A-M3/57T requirements.
6.How does Aetrix verify that SMCJ9.0A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0A-M3/57T 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 SMCJ9.0A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ9.0A-M3/57T?
All SMCJ9.0A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0A-M3/57T, 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 SMCJ9.0A-M3/57T part is unused and in its original packaging.
Return procedure for SMCJ9.0A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0A-M3/57T Tags
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