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Vishay General Semiconductor - Diodes Division SMCJ9.0CAHM3/H
- Part No.:
- SMCJ9.0CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ9.0CAHM3/H.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,592
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Product details
Overview
SMCJ9.0CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of sensitive electronics. 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 (10/1000 µs waveform), commonly deployed on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SMCJ9.0CAHM3/H datasheet, SMCJ9.0CAHM3/H pinout, SMCJ9.0CAHM3/H application, or SMCJ9.0CAHM3/H equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, halogen-free RoHS compliance (HM3 suffix), thermal resistance (RθJA = 75 °C/W), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This device operates as a voltage-clamping protector with symmetrical breakdown behavior in both directions (VBR min = 10.0 V, VBR max = 11.1 V at IT = 1.0 mA), enabling use on AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1.0 ns), critical for suppressing ESD and inductive switching transients.
Thermally, it supports operation from −55 °C to +150 °C (TJ), with RθJL = 15 °C/W enabling effective heat transfer to PCB leads. The HM3 suffix confirms halogen-free, RoHS-compliant construction and AEC-Q101 qualification-verified per JESD22-B102 whisker testing and MSL Level 1 (260 °C reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 10.0 V / 11.1 V at 1.0 mA - Ensures reliable turn-on margin above VWM with tight tolerance |
| VC @ IPPM | 15.4 V at 97.4 A - Clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 1500 W - Peak surge power handling capability under standardized transient waveform |
| IPPM | 97.4 A - Maximum non-repetitive surge current supported without degradation |
| TJ Range | −55 °C to +150 °C - Enables deployment in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - Thermal resistance from junction to ambient on standard 8 mm × 8 mm pad layout |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical PN junction; conducts surge current in either direction |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical PN junction; completes clamping path regardless of polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment I/O |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance requirements for global OEM supply chains and end-of-life recycling |
| Low incremental surge resistance | Enables tighter clamping (VC − VBR = 5.4 V) and lower let-through energy during transients |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking or special handling |
| Glass passivated junction | Provides stable leakage performance (<1.0 µA) and long-term reliability under thermal cycling |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., temperature, pressure) in engine control units against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector or IC input pins to shunt surge energy before reaching downstream circuitry. Use Value: Maintains signal integrity by limiting transient voltage to ≤15.4 V while surviving repeated 1500 W surges-critical for AEC-Q100 Grade 1 system compliance. | Use Scenario: Safeguarding digital and analog I/O channels on programmable logic controller (PLC) modules exposed to field wiring transients in factory automation. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential or single-ended signal pairs to suppress EFT, ESD, and inductive kickback. Use Value: Eliminates need for separate unidirectional devices per line; symmetric VBR ensures identical protection in both polarities without layout redesign. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY interfaces, RS-485 transceivers, and DSL line drivers from lightning-induced surges and induced noise on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end transient suppressor mounted at board edge, upstream of common-mode chokes and data-line ESD diodes. Use Value: Withstands 10/1000 µs surges up to 97.4 A while maintaining <1.0 µA leakage at 9.0 V-preserving signal-to-noise ratio in high-speed links. | Use Scenario: Protecting AC-DC adapter primary-side rectifier outputs and secondary-side DC bus rails from mains-borne transients and capacitor discharge events. IC Role / Device Role / Timing Role: Secondary-side clamping device across low-voltage DC output (e.g., 9 V rail) to prevent overvoltage damage to connected USB peripherals or charging circuits. Use Value: Halogen-free HM3 construction supports regulatory compliance for consumer products; 1500 W rating exceeds IEC 61000-4-5 Level 4 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0CA | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher VC (15.3 V at 27.1 A) | Not suitable for high-energy surges; limited to low-power signal lines or secondary-side protection | Select when space-constrained layouts require smaller footprint and surge energy is ≤400 W |
| SMCJ9.0AHE3/H | Unidirectional variant; same VWM/VBR/VC, but cathode-marked and intended for DC-biased lines | Requires polarity-aware placement; unsuitable for AC or floating signals without series blocking capacitor | Select only for DC-coupled applications where reverse conduction must be blocked |
Compared with SMAJ9.0CA and SMCJ9.0AHE3/H, the SMCJ9.0CAHM3/H delivers 3.75× higher surge power handling in the same SMC footprint while supporting bidirectional signal paths-making it optimal for automotive and industrial interfaces requiring robust, polarity-agnostic protection.
Availability
SMCJ9.0CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer power adapter designs requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for SMCJ9.0CAHM3/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 targets high-energy transient suppression in harsh environments, with design focus on automotive-grade robustness, industrial system resilience, and compliance-ready packaging (HM3/HE3).
FAQ
What does the 'CA' suffix indicate in SMCJ9.0CAHM3/H?
The 'CA' suffix denotes a bidirectional configuration-meaning the SMCJ9.0CAHM3/H provides symmetrical transient voltage suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., SMCJ9.0A), it has no polarity marking and is used on AC-coupled, floating, or differential signal lines where voltage transients may occur with either polarity. This is confirmed in Vishay's documentation under "DEVICES FOR BIDIRECTION APPLICATIONS".
Is SMCJ9.0CAHM3/H AEC-Q101 qualified?
Yes, SMCJ9.0CAHM3/H is AEC-Q101 qualified. The 'HM3' suffix explicitly indicates halogen-free, RoHS-compliant construction with full AEC-Q101 qualification, verified per JESD22-B102 whisker testing and MSL Level 1 reflow compatibility. This qualification is documented in the Vishay datasheet revision 09-Jan-2024, page 3, under "ORDERING INFORMATION" notes.
What is the maximum clamping voltage (VC) of SMCJ9.0CAHM3/H and at what current?
The maximum clamping voltage (VC) of SMCJ9.0CAHM3/H is 15.4 V, measured at a peak pulse current (IPPM) of 97.4 A using the standardized 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table on page 2 of the Vishay datasheet (Document Number: 88394), confirming its ability to limit let-through voltage during high-energy transients.
How does the SMCJ9.0CAHM3/H package differ from SMAJ or SMBJ series?
The SMCJ9.0CAHM3/H uses the SMC (DO-214AB) package-larger than SMAJ's DO-214AC and SMBJ's DO-214AA-with higher thermal mass and superior surge handling (1500 W vs. 400 W and 600 W respectively). Its 7.75 mm × 8.13 mm outline and 3.20 mm height accommodate larger die area, enabling lower dynamic impedance and tighter clamping. This is detailed in the "PACKAGE OUTLINE DIMENSIONS" section (page 5) and "PRIMARY CHARACTERISTICS" table (page 1).
Can SMCJ9.0CAHM3/H replace SMCJ9.0AHE3/H in a design?
No-SMCJ9.0CAHM3/H cannot directly replace SMCJ9.0AHE3/H without layout review. While both share the same VWM, VBR, and VC, the former is bidirectional (no polarity marking), whereas the latter is unidirectional (cathode-banded) and blocks reverse current. Substitution would risk unintended conduction on negative transients in DC-biased circuits. The datasheet explicitly separates CA (bidirectional) and A (unidirectional) variants in all electrical tables and application notes.
SMCJ9.0CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SMCJ9.0CAHM3/H FAQ
1.How can I place an order for SMCJ9.0CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ9.0CAHM3/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 SMCJ9.0CAHM3/H reliable?
The price and inventory of SMCJ9.0CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ9.0CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ9.0CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ9.0CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ9.0CAHM3/H?
SMCJ9.0CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ9.0CAHM3/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 SMCJ9.0CAHM3/H?
For technical support, including SMCJ9.0CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ9.0CAHM3/H requirements.
6.How does Aetrix verify that SMCJ9.0CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ9.0CAHM3/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 SMCJ9.0CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ9.0CAHM3/H?
All SMCJ9.0CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ9.0CAHM3/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 SMCJ9.0CAHM3/H part is unused and in its original packaging.
Return procedure for SMCJ9.0CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ9.0CAHM3/H Tags
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