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Diodes Incorporated 3.0SMCJ14CA-13
- Part No.:
- 3.0SMCJ14CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ14CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,511
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Product details
Overview
3.0SMCJ14CA-13 from Diodes Incorporated is a bi-directional 3000W surface-mount transient voltage suppressor (TVS) designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 14.0V reverse standoff voltage (VRWM), 15.6–17.2V breakdown voltage (VBR), 23.2V max clamping voltage (VC) at 129.3A peak pulse current (IPP), and IEC-61000-4-2 ESD immunity of 30kV (air/contact). It is used in automotive infotainment power inputs to clamp load-dump and ISO 7637-2 transients.
For engineers reviewing the 3.0SMCJ14CA-13 datasheet, 3.0SMCJ14CA-13 pinout, 3.0SMCJ14CA-13 application, or 3.0SMCJ14CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under 10/1000μs waveform, bi-directional symmetry for AC-coupled or floating lines, and SMC package thermal performance on 8mm² copper land.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, with identical breakdown and clamping characteristics in forward and reverse conduction. Its glass-passivated junction ensures stable leakage (<5µA @ VRWM) and repeatable avalanche triggering without degradation under repeated 3000W pulses.
The device complies with IEC-61000-4-2 Level 4 ESD (30kV air/contact) and meets JEDEC high-reliability standards. It is rated for continuous operation from –55°C to +150°C junction temperature and supports automotive-grade change control via Q-suffix variants manufactured in IATF 16949 facilities.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs transients up to 129.3A without failure |
| Reverse Standoff Voltage (VRWM) | 14.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 15.6–17.2V @ 1.0mA - guaranteed avalanche initiation window for predictable clamping onset |
| Max Clamping Voltage (VC) | 23.2V @ IPP = 129.3A - limits downstream voltage stress during worst-case surge |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against human-handling discharge events |
| Operating Temperature | –55°C to +150°C - supports under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; weight ≈ 0.21g; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (Bi-directional) | Transient conduction path | No polarity marking - symmetrical terminals conduct identically in either direction during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power | Enables robust protection against ISO 7637-2 Pulse 5a (load dump) in 12V automotive systems |
| Glass-passivated die construction | Ensures long-term stability of breakdown voltage and low parametric drift over temperature and life |
| Bi-directional configuration | Protects AC-coupled data lines (e.g., RS-485, CAN FD) or floating DC buses without polarity concerns |
| RoHS-compliant, halogen-free "Green" finish | Meets automotive ELV Directive and IPC-1752A material declaration requirements |
Applications
| Automotive Power Input Protection | Industrial Ethernet Port Protection |
|---|---|
Use Scenario: 12V battery rail in head unit power supply subjected to load-dump transients up to 35V. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converter input. Use Value: Limits voltage to ≤23.2V during 129.3A surge, preventing damage to 28V-rated input capacitors and controller ICs. |
Use Scenario: RS-485 bus lines exposed to ESD and lightning-induced surges in factory automation gateways. IC Role / Device Role / Timing Role: Bi-directional TVS shunting common-mode transients between A/B lines and ground. Use Value: Clamps 30kV ESD events within <1ns, preserving signal integrity and avoiding receiver latch-up. |
| Smart Meter AC/DC Power Stage | Medical Patient Monitor Signal Isolation |
Use Scenario: Secondary-side 5V/3.3V DC output of isolated SMPS in utility meter, subject to conducted surges from mains coupling. IC Role / Device Role / Timing Role: Final-stage overvoltage limiter before microcontroller and metrology IC power pins. Use Value: Maintains clamping below 24V while supporting 3000W pulse energy, meeting IEC 61000-4-5 Level 3 (2kV line-earth). |
Use Scenario: Analog front-end inputs (ECG, SpO₂) connected to isolated patient interface, requiring low-leakage, low-capacitance protection. IC Role / Device Role / Timing Role: Low-IR TVS (≤5µA @ 14V) placed after isolation barrier to avoid signal distortion. Use Value: Delivers 30kV ESD protection without adding measurable leakage or noise to sub-µV biomedical signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14CA-13 (Diodes Inc.) | 600W rating, same VRWM/VC but lower IPP (39.5A); SMB package (smaller footprint, lower thermal mass) | Suitable only for lower-energy transients (IEC 61000-4-5 Level 1–2); not recommended for load-dump | Select when board space is constrained and surge threat level is limited to ESD or minor switching noise. |
| 1.5SMC14CA (ON Semiconductor) | Same 3000W rating and SMC package; VRWM = 14V, VC = 23.2V, but higher IR (10µA @ VRWM) and no AEC-Q qualification path | Lacks automotive change control support and IATF 16949 manufacturing traceability | Choose for cost-sensitive industrial designs where automotive compliance is not required. |
Compared with SMBJ14CA-13, this part delivers 5.1× higher surge current handling; versus 1.5SMC14CA, it offers tighter leakage control and direct AEC-Q upgrade path-critical for automotive OEM BOMs requiring PPAP and lifecycle management.
Availability
3.0SMCJ14CA-13 is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial RS-485 interfaces, smart meter DC outputs, and medical analog signal paths requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ14CA-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, headquartered in Plano, Texas, with design, manufacturing, and distribution operations across Asia, Europe, and North America.
This device belongs to Diodes' 3.0SMCJ series of high-power TVS diodes, engineered specifically for automotive and industrial applications demanding rugged, standardized overvoltage protection with AEC-Q alignment and JEDEC reliability validation.
FAQ
What is the difference between 3.0SMCJ14CA-13 and 3.0SMCJ14A-13?
The "C" in 3.0SMCJ14CA-13 denotes bi-directional configuration, meaning it clamps symmetrically for both positive and negative transients. In contrast, 3.0SMCJ14A-13 is uni-directional and features a cathode band for polarity-sensitive placement-used only where DC bias polarity is fixed and reverse conduction must be blocked.
Can this TVS be used on a 24V automotive system?
Yes-it is commonly deployed on 24V systems (e.g., commercial vehicle ECUs) where VRWM = 14V provides adequate margin above nominal rail while allowing clamping below 28V-rated downstream components. Its 150°C junction rating and AEC-Q qualified variants support under-hood environments.
Does the SMC package require special PCB layout considerations?
Yes: Diodes specifies mounting on ≥8.00 mm² copper land areas (0.013 mm thick) to achieve full 3000W pulse rating. Thermal relief traces must be minimized; solder mask defined pads and 2-oz copper are recommended to sustain 129.3A surge current without trace fusing.
Is 3.0SMCJ14CA-13 compliant with AEC-Q200?
No-the standard 3.0SMCJ14CA-13 is not AEC-Q200 qualified. However, Diodes offers automotive-grade equivalents with "Q" suffixes (e.g., 3.0SMCJ14CAQ-13), which undergo AEC-Q200 stress testing, are produced in IATF 16949-certified facilities, and support PPAP documentation for automotive OEMs.
3.0SMCJ14CA-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- 3.0SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 129.3A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ14CA-13 FAQ
1.How can I place an order for 3.0SMCJ14CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ14CA-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 3.0SMCJ14CA-13 reliable?
The price and inventory of 3.0SMCJ14CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ14CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ14CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ14CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ14CA-13?
3.0SMCJ14CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ14CA-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 3.0SMCJ14CA-13?
For technical support, including 3.0SMCJ14CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ14CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ14CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ14CA-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 3.0SMCJ14CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ14CA-13?
All 3.0SMCJ14CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ14CA-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 3.0SMCJ14CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ14CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ14CA-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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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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