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Vishay General Semiconductor - Diodes Division SMCJ11CAHE3_A/I
- Part No.:
- SMCJ11CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ11CAHE3_A/I.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,608
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Product details
Overview
SMCJ11CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for clamping voltage transients up to 1500 W peak pulse power with a 10/1000 µs waveform, 18.2 V maximum clamping voltage at 82.4 A peak current, and 11 V standoff voltage - deployed in automotive sensor signal lines, industrial I/O protection, and telecom interface circuits.
For engineers reviewing the SMCJ11CAHE3_A/I datasheet, SMCJ11CAHE3_A/I pinout, SMCJ11CAHE3_A/I application, or SMCJ11CAHE3_A/I equivalent, this device is selected for high-energy ESD and surge immunity in AEC-Q101-qualified automotive systems, where low clamping voltage, fast response time, and bidirectional symmetry are critical for protecting sensitive analog and digital inputs.
Technical Context
The SMCJ11CAHE3_A/I operates as a bidirectional avalanche diode with symmetrical breakdown characteristics in both polarities, enabling transient suppression on AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR (12.2–13.5 V at 1 mA), low incremental surge resistance, and thermal stability up to 150 °C junction temperature.
It meets J-STD-020 MSL Level 1 moisture sensitivity and is qualified to AEC-Q101 for automotive use, with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. The device exhibits 0.080 %/°C temperature coefficient of VBR, ensuring predictable clamping behavior across operating temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 11 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| Breakdown Voltage (VBR) | 12.2–13.5 V at 1 mA - Confirmed avalanche initiation range; ensures reliable turn-on during overvoltage events. |
| Clamping Voltage (VC) | 18.2 V at 82.4 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; limits stress on downstream ICs. |
| Peak Pulse Power (PPPM) | 1500 W - Energy-handling capacity under standardized surge waveform; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| Junction Temperature Range | −55 °C to +150 °C - Enables operation in under-hood automotive and industrial environments without derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; required for safety-critical modules. |
| Package | SMC (DO-214AB) - Surface-mount footprint with 8.0 mm × 8.0 mm copper pad thermal design; supports automated assembly and high-power dissipation. |
Pinout & Package
SMCJ11CAHE3_A/I uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount case with no cathode marking (bidirectional configuration). Thermal performance assumes mounting on 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | No polarity distinction; either terminal serves as input/output for AC or floating signals - eliminates orientation errors during placement. |
| Case (cathode band absent) | Thermal and mechanical anchor | Exposed metal slug provides primary heat path to PCB; requires full-solder coverage on recommended pad layout for RθJA = 75 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power rating | Enables single-device protection against high-energy surges (e.g., ISO 7637-2 Pulse 5a) without external series impedance. |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive ECUs, ADAS sensors, and infotainment interfaces requiring long-term field stability. |
| Low clamping ratio (VC/VWM = 1.65) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V or 5 V logic interfacing with 12 V supply domains. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT processes without pre-baking; reduces manufacturing complexity and cost. |
| Glass-passivated junction | Ensures stable leakage (<1 μA at VWM) and repeatable VBR over lifetime - essential for precision analog front-ends. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensor outputs from load dump and inductive switching transients in engine control units. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching signal conditioning ICs. Use Value: Maintains signal integrity under ISO 16750-2 load dump (120 V/1 s) and ISO 7637-2 Pulse 5a (110 V/50 ms) while preserving <1 μA leakage at 11 V standby. | Use Scenario: Safeguarding 4–20 mA current loop receivers and ADC front-ends in programmable logic controllers exposed to motor drive noise and relay bounce. IC Role / Device Role / Timing Role: Fast-response TVS placed across differential input pins to clamp common-mode surges without affecting milliamp-level measurement accuracy. Use Value: Limits transient-induced offset error to <0.5% FS by clamping within 18.2 V at 82.4 A - well below ADC input damage thresholds. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station remote units from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary surge suppressor in multi-stage protection scheme, absorbing bulk energy before secondary GDT or polymer PTC elements. Use Value: Handles 1500 W peak power per IEC 61000-4-5 Combination Wave (1.2/50 µs voltage, 8/20 µs current), reducing downstream component stress by >90%. | Use Scenario: Adding robust ESD and surge immunity to USB 2.0 data lines in automotive infotainment head units and smart home gateways. IC Role / Device Role / Timing Role: Bidirectional TVS integrated into USB connector subassembly to protect PHY transceivers from ±15 kV HBM and ±1 kV IEC 61000-4-5 surges. Use Value: Achieves <1 ns response time and 18.2 V clamping - sufficient to prevent latch-up in USB transceivers rated for 3.6 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC11CA | Same VWM (11 V) and VC (18.2 V), but lower PPPM = 500 W; SOD-123FL package (smaller, lower thermal mass). | Not suitable for IEC 61000-4-5 Level 4; limited to board-level ESD and low-energy transients. | Select only when space-constrained and surge energy is ≤500 W - not a drop-in replacement for automotive or industrial mains-connected ports. |
| SMCJ11CAHM3_A/I | Identical electrical specs and AEC-Q101 qualification; halogen-free construction (HM3 suffix vs. HE3). | No functional difference; used where RoHS-compliant halogen-free materials are mandated by OEM procurement policy. | Direct material substitution when halogen-free compliance is required - same footprint, thermal profile, and reliability data. |
Compared with SAC11CA and SMCJ11CAHM3_A/I, the SMCJ11CAHE3_A/I delivers full 1500 W surge capability in an AEC-Q101-qualified SMC package, making it the preferred choice for high-reliability automotive and industrial applications where energy handling and qualification status are non-negotiable.
Availability
SMCJ11CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog inputs, and telecom line interface designs requiring stable component supply with AEC-Q101 validation and 1500 W surge immunity.
Supply support for SMCJ11CAHE3_A/I 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, power efficiency, and automotive-grade qualification.
The SMCJ series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal fidelity.
FAQ
What is the clamping voltage of SMCJ11CAHE3_A/I at its rated peak pulse current?
The SMCJ11CAHE3_A/I has a maximum clamping voltage (VC) of 18.2 V at 82.4 A peak pulse current, tested with a 10/1000 µs waveform. This value is specified in the Vishay datasheet (Document Number: 88394, Revision: 09-Jan-2024) and represents the upper voltage limit imposed on protected circuitry during worst-case surge events. The SMCJ11CAHE3_A/I maintains this clamping performance across its full operating temperature range.
Is SMCJ11CAHE3_A/I suitable for automotive applications?
Yes, the SMCJ11CAHE3_A/I is AEC-Q101 qualified, as confirmed by its HE3 suffix and documentation in Vishay's official datasheet. It is designed for automotive use cases including sensor interface protection, infotainment system I/O, and body control module inputs. The SMCJ11CAHE3_A/I meets stress test requirements for high-temperature operation, thermal cycling, and ESD robustness required in automotive electronics.
What does the "CA" suffix indicate in SMCJ11CAHE3_A/I?
The "CA" suffix in SMCJ11CAHE3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., SMCJ11A), the SMCJ11CAHE3_A/I has no polarity marking and is used where AC signals, floating grounds, or undefined voltage polarity require equal clamping in either direction.
What is the standoff voltage (VWM) of SMCJ11CAHE3_A/I, and why is it important?
The standoff voltage (VWM) of SMCJ11CAHE3_A/I is 11 V - the maximum DC or continuous peak voltage the device can withstand without entering avalanche conduction. This parameter ensures the SMCJ11CAHE3_A/I remains non-conductive during normal operation while remaining ready to clamp transients exceeding this threshold. It directly determines compatibility with 12 V automotive and industrial supply domains.
How does the SMCJ11CAHE3_A/I package compare to smaller TVS diodes like SMA or SOD-123?
The SMCJ11CAHE3_A/I uses the SMC (DO-214AB) package, which offers significantly higher thermal mass and power dissipation than SMA or SOD-123 packages - enabling its 1500 W peak pulse rating. While SMA/SOD-123 devices may share similar VWM or VC, they cannot sustain the same surge energy. The SMCJ11CAHE3_A/I's larger footprint also supports better PCB heat spreading via 8.0 mm × 8.0 mm copper pads, critical for automotive and industrial reliability.
SMCJ11CAHE3_A/I 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- 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)
SMCJ11CAHE3_A/I FAQ
1.How can I place an order for SMCJ11CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ11CAHE3_A/I 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 SMCJ11CAHE3_A/I reliable?
The price and inventory of SMCJ11CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ11CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ11CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ11CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ11CAHE3_A/I?
SMCJ11CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ11CAHE3_A/I 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 SMCJ11CAHE3_A/I?
For technical support, including SMCJ11CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ11CAHE3_A/I requirements.
6.How does Aetrix verify that SMCJ11CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ11CAHE3_A/I 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 SMCJ11CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ11CAHE3_A/I?
All SMCJ11CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ11CAHE3_A/I, 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 SMCJ11CAHE3_A/I part is unused and in its original packaging.
Return procedure for SMCJ11CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ11CAHE3_A/I Tags
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