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Vishay General Semiconductor - Diodes Division SMCJ9.0AHE3_A/H
- Part No.:
- SMCJ9.0AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0AHE3_A/H.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,433
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Product details
Overview
SMCJ9.0AHE3_A/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 15.4 V maximum clamping voltage (VC) at 97.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform - deployed in automotive ECUs, industrial sensor interfaces, and power supply input stages.
For engineers reviewing the SMCJ9.0AHE3_A/H datasheet, SMCJ9.0AHE3_A/H pinout, SMCJ9.0AHE3_A/H application, or SMCJ9.0AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), junction temperature range (–55 to +150 °C), and compatibility with automated SMT assembly on standard 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ9.0AHE3_A/H operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ps) to transient events such as ESD, load dump, and inductive switching spikes. Its breakdown voltage (VBR) is specified at 10.0–11.1 V with 1.0 mA test current, and it exhibits low incremental surge resistance enabling stable clamping under high-current transients.
Designed for surface-mount use in high-reliability environments, the device meets MSL level 1 per J-STD-020, supports lead-free reflow up to 260 °C peak, and carries matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity is marked by cathode band on the SMC package body.
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 IT = 1.0 mA - ensures reliable avalanche conduction onset within tight tolerance |
| VC @ IPPM | 15.4 V at 97.4 A - limits protected circuit voltage during worst-case 10/1000 µs surge |
| PPPM | 1500 W - sustains high-energy transients without failure when mounted on 8.0 mm × 8.0 mm copper pads |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial ambient conditions |
| RθJA | 75 °C/W - defines thermal derating slope for power dissipation in still air |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMC (DO-214AB), molded epoxy case meeting UL 94 V-0 flammability rating; dimensions 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; forms current path during reverse-biased clamping |
| Cathode | High-side connection point | Connected to protected line; polarity band identifies this terminal; conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMC package | Enables compact PCB layout and compatibility with automated pick-and-place equipment |
| Glass-passivated junction | Ensures long-term reliability and stable electrical characteristics across temperature and humidity |
| 1500 W peak pulse power | Withstands high-energy transients common in 12 V/24 V automotive systems and industrial power supplies |
| AEC-Q101 qualified | Validated for automotive-grade deployment including engine control, ADAS sensors, and infotainment power rails |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load-dump transients up to 35 V and 100 ms duration. IC Role / Device Role / Timing Role: Unidirectional TVS clamps reverse surge energy to ground while blocking normal forward bias. Use Value: Limits voltage seen by downstream LDOs and MCUs to ≤15.4 V, preventing latch-up or permanent damage during ISO 7637-2 Pulse 5a events. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and field-induced surges in factory automation PLC modules. IC Role / Device Role / Timing Role: Fast-acting shunt protector placed between signal line and ground, responding in sub-nanosecond timescale. Use Value: Maintains signal integrity by clamping transients before they propagate into precision op-amps or ADC front-ends, preserving measurement accuracy. |
| DC-DC Converter Input Stage | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding buck converter input capacitors and MOSFET gates from voltage spikes caused by hot-plug events or upstream switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS placed directly at converter input, conducting only during overvoltage excursions. Use Value: Prevents premature gate oxide breakdown in high-side FETs and avoids input capacitor overvoltage stress beyond rated 16 V WV. | Use Scenario: Front-end protection for Ethernet PHY power pins and auxiliary bias rails in carrier-grade network interface cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS suppressing common-mode surges before secondary protection (e.g., GDT + MOV cascade). Use Value: Absorbs up to 1500 W of surge energy per event, reducing stress on downstream polymer PTCs and secondary TVS arrays. |
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/A | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W) | Suitable for lower-energy transients and space-constrained consumer designs; not AEC-Q101 qualified | Select when board area is critical and surge energy remains below 400 W; verify thermal margin in enclosed enclosures |
| SMCJ9.0A-E3/57T | Same electrical specs and SMC package, but commercial-grade (non-AEC-Q101) and RoHS-compliant only (no halogen-free claim) | Applicable in non-automotive industrial or computing applications where qualification is not mandated | Choose for cost-sensitive BOMs where automotive qualification is unnecessary and halogen-free material is not required |
Compared with SMAJ9.0AHE3/A and SMCJ9.0A-E3/57T, the SMCJ9.0AHE3_A/H delivers superior surge handling (1500 W vs. 400 W), automotive-grade reliability (AEC-Q101), and halogen-free construction - making it optimal for mission-critical 12 V rail protection where thermal performance and qualification compliance are mandatory.
Availability
SMCJ9.0AHE3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning circuits, and telecom power supply input stages requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ9.0AHE3_A/H 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 part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-power transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the SMCJ9.0AHE3_A/H under maximum rated surge current?
The SMCJ9.0AHE3_A/H has a maximum clamping voltage (VC) of 15.4 V when subjected to its peak pulse current (IPPM) of 97.4 A using the standard 10/1000 µs waveform. This value is measured at TJ = 25 °C with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards. The SMCJ9.0AHE3_A/H maintains this clamping performance across its full operating temperature range, ensuring predictable protection behavior in real-world deployments.
Is the SMCJ9.0AHE3_A/H qualified for automotive applications?
Yes, the SMCJ9.0AHE3_A/H is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3" and documentation in datasheet 88394. This qualification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling (TCT), and mechanical shock - validating its suitability for under-hood and chassis-mounted automotive electronics. The SMCJ9.0AHE3_A/H is explicitly designated for automotive use in Vishay's material categorization system.
What does the "_A/H" suffix indicate in SMCJ9.0AHE3_A/H?
The "_A/H" suffix in SMCJ9.0AHE3_A/H denotes the packaging configuration: "A" refers to the revision code (per Vishay's internal revision tracking), and "H" specifies the preferred package code for 7-inch plastic tape-and-reel delivery with 850 units per reel. This matches the ordering information table in datasheet 88394, where SMCJ9.0AHE3_A/H is listed alongside weight (0.211 g) and delivery mode. The SMCJ9.0AHE3_A/H is not a functional variant - all electrical and thermal specifications align with the base SMCJ9.0AHE3 family.
Can the SMCJ9.0AHE3_A/H be used in bidirectional configurations?
No, the SMCJ9.0AHE3_A/H is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix in its base part number and confirmed by polarity marking (cathode band) and absence of symmetrical breakdown data. Bidirectional variants use the "CA" suffix (e.g., SMCJ9.0CA) and exhibit identical VBR in both directions. Using the SMCJ9.0AHE3_A/H in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit. Always select SMCJ9.0CAHE3_A/H for true bidirectional protection.
What is the thermal resistance from junction to ambient for the SMCJ9.0AHE3_A/H?
The SMCJ9.0AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended pad layout (0.31" × 0.31" copper pads). This value assumes still air conditions and is used to calculate allowable power dissipation versus ambient temperature. Derating begins above TA = 25 °C per Figure 2 in datasheet 88394. For high-power or high-ambient applications, the SMCJ9.0AHE3_A/H benefits from additional copper pour or thermal vias to reduce effective RθJA - critical for sustained surge duty cycles.
SMCJ9.0AHE3_A/H 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:
- -
- 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_A/H FAQ
1.How can I place an order for SMCJ9.0AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0AHE3_A/H 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_A/H reliable?
The price and inventory of SMCJ9.0AHE3_A/H 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_A/H is usually 5 days.
3.What payment methods are accepted for SMCJ9.0AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0AHE3_A/H?
SMCJ9.0AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0AHE3_A/H 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_A/H?
For technical support, including SMCJ9.0AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0AHE3_A/H requirements.
6.How does Aetrix verify that SMCJ9.0AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0AHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of SMCJ9.0AHE3_A/H?
All SMCJ9.0AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0AHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for SMCJ9.0AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0AHE3_A/H Tags
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