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Diodes Incorporated 3.0SMCJ11CAQ-13
- Part No.:
- 3.0SMCJ11CAQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ11CAQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:4,753
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Product details
Overview
3.0SMCJ11CAQ-13 from Diodes Incorporated is a bi-directional automotive-grade transient voltage suppressor (TVS) diode designed for ISO7637-2 and ISO10605 surge/ESD protection in vehicle power-line and signal-line circuits. It delivers 3000W peak pulse power, 11V reverse standoff voltage (VRWM), 18.2V max clamping voltage at 164.8A peak pulse current, and operates from –55°C to +175°C.
For engineers reviewing the 3.0SMCJ11CAQ-13 datasheet, 3.0SMCJ11CAQ-13 pinout, 3.0SMCJ11CAQ-13 application, or 3.0SMCJ11CAQ-13 equivalent, this device is selected for AEC-Q101-compliant automotive systems requiring robust clamping performance against Pulse 1 (–150V), Pulse 2a (+112V), Pulse 3a (–220V), and Pulse 3b (+150V) transients per ISO7637-2.
Technical Context
This bi-directional TVS uses silicon avalanche junction technology to clamp both positive and negative transients symmetrically across its terminals. Its 18.2V clamping voltage at 164.8A (10×1000μs waveform) ensures low-voltage rail protection without over-stressing downstream ICs like CAN transceivers or microcontrollers.
It is rated for 300A non-repetitive forward surge current (8.3ms half-sine), supports IATF16949 manufacturing, and features RoHS-compliant matte tin plating with moisture sensitivity level 1 - enabling direct placement on high-reliability automotive PCBs without baking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10×1000μs surges up to 164.8A without failure |
| Reverse Standoff Voltage (VRWM) | 11.0V - maximum continuous DC or RMS voltage before significant leakage |
| Max Clamping Voltage (VC) | 18.2V @ IPP = 164.8A - limits transient voltage seen by protected ICs |
| Breakdown Voltage (VBR) | 12.2V–13.5V @ IT = 1.0mA - defines onset of avalanche conduction |
| Peak Forward Surge Current (IFSM) | 300A @ 8.3ms half-sine - handles load dump and inductive kick events |
| Operating Temperature Range | –55°C to +175°C - qualified for under-hood and powertrain environments |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating and 0.21g mass. Cathode band marking identifies polarity; bi-directional operation eliminates orientation dependency in layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative transients; tied to ground or low-side reference |
| Cathode | Transient current entry (positive polarity) | Conducts during positive transients; tied to protected line (e.g., CAN_H, LIN, 12V rail) |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power dissipation | Enables protection against severe ISO7637-2 Pulse 3a (–220V) without thermal runaway |
| Bi-directional clamping symmetry | Equal 18.2V clamping for ±164.8A pulses - critical for differential bus lines like CAN FD |
| AEC-Q101 qualification & PPAP capability | Meets automotive change control requirements for Tier 1 production BOMs |
| Lead-free, halogen-free, antimony-free | Complies with RoHS 3 (2015/863/EU) and automotive green material mandates |
| Moisture Sensitivity Level 1 | Zero bake requirement prior to reflow - reduces manufacturing overhead and risk |
Applications
| Automotive CAN Bus Protection | Engine Control Unit (ECU) Power Input |
|---|---|
|
Use Scenario: Installed across CAN_H and CAN_L lines near connector entry to absorb ESD and coupled transients. IC Role / Device Role / Timing Role: Bi-directional voltage clamp limiting differential and common-mode surges to <±20V. Use Value: Prevents latch-up or damage to ISO11898-2/3 compliant transceivers during 30kV contact discharge (ISO10605). |
Use Scenario: Placed between battery feed (12V/24V) and ECU input filter capacitor. IC Role / Device Role / Timing Role: Primary surge shunt protecting LDOs, MCUs, and analog sensors from load dump and ISO7637-2 Pulse 1. Use Value: Clamps –150V transients to ≤18.2V within 1ns, preserving 5V/3.3V domain integrity. |
| Body Control Module (BCM) LIN Bus | ADAS Camera Power Rail |
|
Use Scenario: Mounted on LIN bus line between gateway and door module to suppress ignition noise and ESD. IC Role / Device Role / Timing Role: Low-leakage (≤2µA @ 11V) bi-directional clamp maintaining LIN signal integrity. Use Value: Ensures <1% duty-cycle pulse immunity without affecting 19.2kbps data timing or voltage thresholds. |
Use Scenario: Applied to 5V or 12V camera module power input exposed to vehicle harness coupling. IC Role / Device Role / Timing Role: Fast-response avalanche device suppressing 10×1000μs transients before DC-DC converter input stage. Use Value: Maintains stable imaging power during start-stop cycles and alternator ripple events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | 2000W PPK, same VRWM (11V), higher VC (19.0V @ 104A), SMB package (smaller footprint) | Limited to lower-energy transients; unsuitable for ISO7637-2 Pulse 3a (–220V) | Select when space-constrained and surge severity is limited to Pulse 2a/Pulse 3b only. |
| 1.5SMC11CA | 1500W PPK, same VRWM, VC = 18.2V @ 82.4A, identical SMC package but lower surge rating | Cannot sustain 164.8A pulses; fails under full ISO7637-2 Pulse 1 (–150V) stress | Acceptable only for non-critical interior modules with filtered power feeds. |
Compared with SMBJ11CA and 1.5SMC11CA, the 3.0SMCJ11CAQ-13 provides 50% higher peak power and 98% higher peak current handling - essential for front-end protection in engine bay and ADAS domains where full ISO7637-2 compliance is mandatory.
Availability
3.0SMCJ11CAQ-13 is available at Aetrix Electronics and suitable for automotive ECU design, ADAS camera integration, body electronics development, and infotainment system prototyping requiring stable component supply across production lifecycles.
Supply support for 3.0SMCJ11CAQ-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.
The 3.0SMCJ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically to meet ISO7637-2 and ISO10605 requirements for harsh-vehicle-environment surge suppression.
FAQ
What is the clamping voltage of 3.0SMCJ11CAQ-13 at its rated peak pulse current?
The maximum clamping voltage (VC) is 18.2V measured at 164.8A peak pulse current using the standardized 10×1000μs waveform per Figure 4 in DS40742 Rev. 12–2. This value is guaranteed across –55°C to +175°C operating temperature and defines the upper voltage limit imposed on protected circuitry during surge events.
Is 3.0SMCJ11CAQ-13 unidirectional or bidirectional, and how is polarity identified?
3.0SMCJ11CAQ-13 is a bi-directional TVS, indicated by the "C" suffix in the part number. It has no anode/cathode functional distinction for surge conduction - both terminals conduct equally during positive or negative transients. The cathode band marking is retained for mechanical alignment consistency but does not imply directional operation.
Does this device require derating at elevated ambient temperatures?
Yes - peak pulse power and current must be derated linearly above +25°C per Figure 1 in DS40742. At +125°C, it retains approximately 60% of its 3000W rating (1800W), and at +175°C, it maintains ~35% (1050W). Derating applies to both unidirectional and bi-directional variants identically.
Can 3.0SMCJ11CAQ-13 replace older 3.0SMCJ11A parts in existing designs?
Yes - the "AQ" suffix denotes AEC-Q101 qualification and IATF16949 manufacturing, while electrical parameters (VRWM, VBR, VC, IPP) match legacy 3.0SMCJ11A devices. No layout or schematic changes are needed; the AQ variant adds automotive traceability, PPAP documentation, and enhanced process controls without altering performance.
3.0SMCJ11CAQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- 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):
- 164.8A
- Power - Peak Pulse:
- 3000W (3kW)
- 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:
- SMC
3.0SMCJ11CAQ-13 FAQ
1.How can I place an order for 3.0SMCJ11CAQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ11CAQ-13 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 3.0SMCJ11CAQ-13 reliable?
The price and inventory of 3.0SMCJ11CAQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ11CAQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ11CAQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ11CAQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ11CAQ-13?
3.0SMCJ11CAQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ11CAQ-13 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 3.0SMCJ11CAQ-13?
For technical support, including 3.0SMCJ11CAQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ11CAQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ11CAQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ11CAQ-13 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 3.0SMCJ11CAQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ11CAQ-13?
All 3.0SMCJ11CAQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ11CAQ-13, 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 3.0SMCJ11CAQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ11CAQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ11CAQ-13 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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