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Vishay General Semiconductor - Diodes Division SMCJ9.0AHE3/57T
- Part No.:
- SMCJ9.0AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0AHE3/57T.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,039
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Product details
Overview
SMCJ9.0AHE3/57T from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. It features a 9.0 V standoff voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA test current, and clamps transients to ≤15.4 V at 97.4 A peak pulse current (IPPM) under 10/1000 μs waveform - ideal for protecting power rails and signal lines in automotive ECUs and industrial I/O modules.
For engineers reviewing the SMCJ9.0AHE3/57T datasheet, SMCJ9.0AHE3/57T pinout, SMCJ9.0AHE3/57T application, or SMCJ9.0AHE3/57T equivalent, key selection criteria include its AEC-Q101 qualification, 1500 W peak pulse power rating (PPPM), low 0.074 %/°C VBR temperature coefficient, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly.
Technical Context
The SMCJ9.0AHE3/57T operates as a unidirectional avalanche diode with cathode-banded polarity, leveraging glass-passivated junction technology for stable clamping and fast response (<1 ns). Its thermal resistance (RθJA = 75 °C/W) and junction-to-lead resistance (RθJL = 15 °C/W) support reliable operation up to TJ = +150 °C under surge conditions.
It meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), complies with UL 94 V-0 flammability, and is rated for non-repetitive 200 A forward surge current (IFSM) - confirming suitability for high-energy transient suppression in 12 V automotive systems and industrial power supplies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage threshold for 12 V nominal rails. |
| VBR @ IT = 1.0 mA | 10.0–11.1 V - guaranteed breakdown range defining precise turn-on behavior for predictable transient response. |
| VC @ IPPM = 97.4 A | ≤15.4 V - clamping voltage under 10/1000 μs surge; limits downstream IC stress during ESD or load-dump events. |
| PPPM | 1500 W - peak pulse power handling capacity; enables protection against high-energy transients per ISO 7637-2 Pulse 5a. |
| IFSM | 200 A - single half-sine surge rating (8.3 ms); supports robustness against inductive switching surges in motor drivers. |
| TJ max. | +150 °C - maximum junction temperature; ensures reliability in under-hood automotive environments and enclosed industrial enclosures. |
| Leakage ID @ VWM | ≤10 μA - ultra-low reverse leakage at 9.0 V; minimizes standby power loss in battery-powered sensor nodes. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode identified by black band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail; defines directionality for unidirectional clamping. |
| Cathode | Clamping output / Surge current sink | Banded terminal connected to protected line (e.g., 12 V supply); conducts surge current to ground during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS, and body electronics. |
| Glass passivated junction | Ensures stable VBR and low leakage across life cycle; eliminates risk of moisture-induced parameter drift in humid environments. |
| MSL Level 1 rating | Enables direct placement into standard lead-free reflow profiles (peak 260 °C) without baking or special handling. |
| 1500 W peak pulse power | Provides margin against worst-case ISO 7637-2 load-dump transients (up to 120 V, 100 ms) when used with appropriate PCB copper area. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., EFT bursts), improving protection fidelity for high-speed interfaces. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V supply inputs of engine control units (ECUs) against load-dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor, clamping surges within nanoseconds. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤15.4 V, preventing latch-up or permanent damage. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA loops) and digital I/O (CAN, LIN) in programmable logic controllers (PLCs). IC Role / Device Role / Timing Role: Standoff-connected TVS on signal lines, absorbing ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback. Use Value: Maintains signal integrity with <10 μA leakage at 9.0 V, avoiding offset errors in precision current-loop transmitters. |
| Consumer Power Adapter Input Protection | Telecom DC Power Entry Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for smart home hubs and IoT gateways. IC Role / Device Role / Timing Role: Unidirectional clamp on regulated 5 V or 9 V output rail, triggered by feedback loop failure or rectifier fault. Use Value: Delivers 1500 W surge capability without derating at ambient temperatures up to +85 °C, ensuring compliance with UL 62368-1. |
Use Scenario: Primary protection at -48 V DC telecom power entry points in base station remote radio units (RRUs). IC Role / Device Role / Timing Role: High-energy TVS placed upstream of DC/DC converters to absorb lightning-induced surges (IEC 61000-4-5 2 Ω/12 Ω coupling). Use Value: Withstands 97.4 A peak pulse current while maintaining clamping below -55 V, preserving negative-rail integrity in telecom infrastructure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0AHE3/57T | Lower PPPM (400 W), smaller SMA (DO-214AC) package, same VWM/VBR specs. | Targeted at space-constrained consumer electronics where 1500 W surge margin is not required. | Select SMCJ9.0AHE3/57T when automotive or industrial surge immunity (ISO 7637, IEC 61000-4-5) mandates ≥1000 W rating. |
| SMCJ9.0CAHE3/57T | Bidirectional variant; identical VWM, VBR, and PPPM, but symmetric clamping in both polarities. | Required for AC-coupled or floating signal lines (e.g., RS-485, Ethernet PHY) where polarity reversal occurs. | Choose SMCJ9.0AHE3/57T for DC power rails with defined polarity; use SMCJ9.0CAHE3/57T only if bidirectional protection is explicitly needed. |
Compared with SMAJ9.0AHE3/57T and SMCJ9.0CAHE3/57T, the SMCJ9.0AHE3/57T uniquely balances AEC-Q101 qualification, 1500 W surge capacity, and unidirectional efficiency - making it the preferred choice for cost-sensitive yet mission-critical 12 V automotive and industrial power protection.
Availability
SMCJ9.0AHE3/57T is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, and telecom power entry applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for SMCJ9.0AHE3/57T 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and performance.
The SMCJ series was engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where robustness, AEC-Q101 compliance, and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of the SMCJ9.0AHE3/57T at its rated peak pulse current?
The SMCJ9.0AHE3/57T clamps to a maximum of 15.4 V at its rated peak pulse current of 97.4 A under the standardized 10/1000 μs waveform. This value is measured and guaranteed per the Vishay datasheet (Document Number: 88394, Rev. 09-Jan-2024), and reflects the device's ability to limit transient overvoltages to protect downstream circuitry without exceeding safe operating limits for typical 12 V system ICs.
Is the SMCJ9.0AHE3/57T qualified for automotive applications?
Yes, the SMCJ9.0AHE3/57T carries AEC-Q101 qualification, confirmed in the Vishay datasheet under "MECHANICAL DATA" and "THERMAL CHARACTERISTICS" sections. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, making the SMCJ9.0AHE3/57T suitable for under-hood and chassis-mounted automotive electronics including body control modules and ADAS sensors.
What does the "57T" suffix indicate in SMCJ9.0AHE3/57T?
The "57T" suffix in SMCJ9.0AHE3/57T specifies the packaging configuration: 7-inch diameter plastic tape and reel, with a base quantity of 850 units per reel. This format is optimized for high-volume automated SMT placement and aligns with industry-standard JEDEC shipping requirements for DO-214AB devices.
How does the SMCJ9.0AHE3/57T differ from the bidirectional SMCJ9.0CAHE3/57T?
The SMCJ9.0AHE3/57T is unidirectional, with polarity marked by a cathode band and intended for DC rail protection where voltage polarity is fixed. In contrast, the SMCJ9.0CAHE3/57T is bidirectional, offering symmetric clamping in both directions and no polarity marking - required for AC-coupled or floating differential lines like RS-485. Both share identical VWM, VBR, and PPPM, but their circuit integration and layout constraints differ fundamentally.
What is the maximum junction temperature rating for the SMCJ9.0AHE3/57T?
The SMCJ9.0AHE3/57T has a maximum junction temperature (TJ) rating of +150 °C, as specified in the "MAXIMUM RATINGS" table of the Vishay datasheet. This allows continuous operation in high-ambient environments such as engine compartments or sealed industrial enclosures, provided thermal design (e.g., copper pad area per fig. 2) maintains junction temperature within this limit during surge events.
SMCJ9.0AHE3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SMCJ9.0AHE3/57T FAQ
1.How can I place an order for SMCJ9.0AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0AHE3/57T 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 SMCJ9.0AHE3/57T reliable?
The price and inventory of SMCJ9.0AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0AHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCJ9.0AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0AHE3/57T?
SMCJ9.0AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0AHE3/57T 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 SMCJ9.0AHE3/57T?
For technical support, including SMCJ9.0AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0AHE3/57T requirements.
6.How does Aetrix verify that SMCJ9.0AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0AHE3/57T 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 SMCJ9.0AHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCJ9.0AHE3/57T?
All SMCJ9.0AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0AHE3/57T, 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 SMCJ9.0AHE3/57T part is unused and in its original packaging.
Return procedure for SMCJ9.0AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0AHE3/57T Tags
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