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Diodes Incorporated 3.0SMCJ15CAQ-13
- Part No.:
- 3.0SMCJ15CAQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ15CAQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:9,655
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Product details
Overview
3.0SMCJ15CAQ-13 from Diodes Incorporated is a bi-directional automotive-grade transient voltage suppressor (TVS) diode in SMC package, rated for 3000W peak pulse power, 15V reverse standoff voltage (VRWM), and 24.2V max clamping voltage (VC) at 124A peak pulse current (IPP). It protects CAN, LIN, and sensor interfaces in engine control units and body electronics against ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD surges.
For engineers reviewing the 3.0SMCJ15CAQ-13 datasheet, 3.0SMCJ15CAQ-13 pinout, 3.0SMCJ15CAQ-13 application, or 3.0SMCJ15CAQ-13 equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, bi-directional surge handling, RoHS/Green compliance, and IATF16949-manufactured traceability - critical for automotive power rail and data line protection design validation.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, enabling robust protection of differential buses like CAN FD without polarity sensitivity. Its 15V VRWM ensures compatibility with 12V automotive systems while maintaining low leakage (<2µA) and fast response to transients as short as 10×1000µs.
The device achieves 24.2V clamping at 124A IPP under standardized surge waveforms, delivering predictable voltage limiting during ISO7637-2 Pulse 3b (+150V) and Pulse 1 (−150V) events. Thermal operation spans −55°C to +175°C junction temperature, supporting under-hood deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000µs surges up to 124A without failure |
| Reverse Standoff Voltage (VRWM) | 15.0V - maximum continuous operating voltage before clamping begins |
| Max Clamping Voltage (VC) | 24.2V @ IPP = 124A - limits downstream IC voltage to safe level during surge |
| Breakdown Voltage (VBR) | 16.7–18.5V @ IT = 1.0mA - defines onset of avalanche conduction |
| Peak Forward Surge Current (IFSM) | 300A @ 8.3ms half-sine - handles repetitive load dump energy without bond wire failure |
| Operating Temperature Range | −55°C to +175°C - supports placement near engines, transmissions, and power inverters |
| AEC-Q101 Qualified | Yes - validated for automotive use with PPAP capability and IATF16949 manufacturing |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic UL 94V-0 housing; weight ≈ 0.21g; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band (Marked End) | Anode Terminal (Bi-directional) | Identifies terminal orientation; in bi-directional configuration, both ends function identically as symmetrical avalanche terminals |
| Opposite End | Cathode Terminal (Bi-directional) | Matches cathode band marking convention but carries no polarity-dependent function - full symmetry enables placement on any PCB trace |
Key Features
| Feature | Design Value |
|---|---|
| 3000W Peak Pulse Power | Enables protection of 12V power rails against severe load dump and ISO7637-2 Pulse 1 (−150V) without derating |
| Bi-directional Symmetry | Eliminates polarity concerns on differential buses (e.g., CAN H/L), reducing layout constraints and BOM count |
| 24.2V Clamping at 124A | Ensures downstream 3.3V/5V microcontrollers and transceivers remain within absolute maximum ratings during surge events |
| AEC-Q101 Qualification | Validates reliability for automotive safety-critical modules including ADAS sensors and gateway ECUs |
| Halogen & Antimony Free | Meets automotive "Green" requirements (<900ppm Br, <900ppm Cl, <1000ppm Sb) for end-of-life recycling compliance |
Applications
| Engine Control Unit (ECU) Power Input | CAN FD Data Line Protection |
|---|---|
|
Use Scenario: 12V battery feed to MCU and power management ICs exposed to load dump and alternator transients. IC Role / Device Role: Primary overvoltage clamp on main VBAT rail. Use Value: Limits voltage to ≤24.2V during −150V ISO7637-2 Pulse 1, preventing damage to 28V-rated LDOs and PMICs. |
Use Scenario: Bidirectional protection of high-speed CAN FD bus (5 Mbps) in vehicle domain controllers. IC Role / Device Role: Symmetric transient suppressor across CAN_H and CAN_L lines. Use Value: Maintains signal integrity by clamping ±150V ISO7637-2 Pulse 3b without polarity misalignment or added capacitance. |
| Body Control Module (BCM) Sensor Interface | Automotive Lighting Driver Input |
|
Use Scenario: Protection of LIN bus and analog sensor inputs (e.g., ambient light, rain sensor) in door modules. IC Role / Device Role: Low-leakage (≤2µA @ 15V) bi-directional clamp on 12V-supplied sensor lines. Use Value: Prevents false triggering and ADC offset shift during 30kV contact ESD per ISO10605 without affecting baseline accuracy. |
Use Scenario: Input surge suppression for LED driver ICs powering headlamps and DRLs subjected to jump-start transients. IC Role / Device Role: Front-end TVS on 12V input stage prior to buck controller. Use Value: Absorbs 300A 8.3ms half-sine surges (IFSM) from improper jump-starts while preserving driver IC lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | 2000W PPK, same VRWM/VC, SMB package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; unsuitable for ISO7637-2 Pulse 1 in high-current ECUs | Select only for space-constrained non-power-rail nodes (e.g., sensor outputs) where 3000W margin is unnecessary |
| 1.5SMC15CA | 1500W PPK, identical VRWM/VC, same SMC package but lower surge rating | Fails under repeated ISO7637-2 Pulse 2a (+112V) events in gateways due to thermal accumulation | Acceptable for cost-sensitive interior modules with infrequent surge exposure, not for powertrain or ADAS |
Compared with SMBJ15CA and 1.5SMC15CA, the 3.0SMCJ15CAQ-13 delivers 50% higher peak power and proven thermal robustness for under-hood deployment - essential when protecting high-reliability automotive power domains where derating margins directly impact field failure rates.
Availability
3.0SMCJ15CAQ-13 is available at Aetrix Electronics and suitable for engine control units, CAN FD gateways, body control modules, and LED lighting drivers requiring stable component supply across automotive production lifecycles.
Supply support for 3.0SMCJ15CAQ-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 integrated circuits, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.
The 3.0SMCJ series is engineered specifically for AEC-Q101-compliant automotive transient suppression, targeting ISO7637-2 and ISO10605 compliance in harsh environment ECUs, sensors, and communication interfaces.
FAQ
What does the 'C' suffix in 3.0SMCJ15CAQ-13 signify?
The 'C' denotes bi-directional functionality: both terminals behave identically under positive and negative transients, eliminating polarity concerns during PCB layout. This differs from uni-directional variants (e.g., 3.0SMCJ15AQ-13), which require correct cathode alignment and only clamp in one direction.
Is 3.0SMCJ15CAQ-13 suitable for protecting a 5V USB-C port in an automotive infotainment system?
No - its 15V VRWM and 24.2V clamping voltage exceed safe limits for 5V logic. It is designed for 12V automotive power rails and data lines (CAN/LIN), not low-voltage digital interfaces. Use a 5.0V-rated TVS like SP1001-050 for USB-C protection.
How does the SMC package compare to SMA in thermal performance for this TVS?
The SMC package provides ~30% larger copper pad area than SMA, enabling higher sustained power dissipation. At 124A IPP, SMC maintains lower junction temperature rise - critical for passing AEC-Q101 temperature cycling and ensuring long-term reliability in under-hood environments.
Does 3.0SMCJ15CAQ-13 meet ISO7637-2 Pulse 5a (load dump) requirements?
No - Pulse 5a requires clamping at ≥35V and energy absorption beyond 3000W. This device targets Pulses 1, 2a, 3a, and 3b. For load dump, use a dedicated load dump suppressor like DZ23C18 or a TVS with ≥35V VRWM and >5000W rating.
3.0SMCJ15CAQ-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.2V
- Current - Peak Pulse (10/1000µs):
- 124A
- 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
3.0SMCJ15CAQ-13 FAQ
1.How can I place an order for 3.0SMCJ15CAQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ15CAQ-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 3.0SMCJ15CAQ-13 reliable?
The price and inventory of 3.0SMCJ15CAQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ15CAQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ15CAQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ15CAQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ15CAQ-13?
3.0SMCJ15CAQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ15CAQ-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 3.0SMCJ15CAQ-13?
For technical support, including 3.0SMCJ15CAQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ15CAQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ15CAQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ15CAQ-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 3.0SMCJ15CAQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ15CAQ-13?
All 3.0SMCJ15CAQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ15CAQ-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 3.0SMCJ15CAQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ15CAQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ15CAQ-13 Tags
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ESD9B5.0ST5G
onsemi
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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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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Diodes Incorporated
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