Diodes Incorporated 3.0SMCJ13CA-13
- Part No.:
- 3.0SMCJ13CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ13CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
3.0SMCJ13CA-13 from Diodes Incorporated is a bi-directional 3000W surface-mount transient voltage suppressor (TVS) designed for robust overvoltage protection in DC power rails and signal lines. It features a 13.0V reverse standoff voltage (VRWM), 21.5V maximum clamping voltage (VC) at 139.5A peak pulse current, and IEC-61000-4-2 ESD immunity of 30kV (air/contact). It is used in automotive infotainment power inputs to suppress load-dump and ISO 7637-2 transients.
For engineers reviewing the 3.0SMCJ13CA-13 datasheet, 3.0SMCJ13CA-13 pinout, 3.0SMCJ13CA-13 application, or 3.0SMCJ13CA-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 (14.4–15.9V) and clamping (21.5V) characteristics in either direction. Its glass-passivated junction ensures stable leakage (<5μA @ VRWM) and repeatable avalanche response under repetitive surge stress.
The device complies with IEC-61000-4-2 Level 4 ESD (30kV air/contact) and meets JEDEC high-reliability standards. Thermal derating follows a defined curve: 100% PPK at +25°C ambient, linearly reduced to ~50% at +125°C per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10×1000μs surges up to 139.5A without failure |
| Reverse Standoff Voltage | 13.0V - maximum continuous DC or RMS voltage before significant leakage |
| Clamping Voltage | 21.5V @ 139.5A - limits transient voltage seen by downstream circuitry |
| Breakdown Voltage | 14.4–15.9V @ 1.0mA - defines onset of controlled avalanche conduction |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against human-handling events |
| Operating Temperature | −55°C to +150°C - supports under-hood automotive and industrial environments |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with matte tin-plated leads; UL 94V-0 rated; 0.21g typical weight; cathode band absent (bi-directional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional transient conduction path | No polarity marking; terminals interchangeable - enables placement on AC or floating nodes without orientation check |
| Case / Body | Thermal and mechanical interface | Requires ≥8.00 mm² copper pad per terminal for full 3000W rating; solderable per MIL-STD-202 Method 208 |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse rating | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) in 12V systems |
| Bi-directional symmetry | Eliminates polarity-sensitive layout; supports differential signal line or split-rail protection |
| Glass-passivated die | Ensures long-term parameter stability and low parametric drift under thermal cycling |
| RoHS-compliant & halogen-free | Meets automotive ELV directive and IPC-1752A material declaration requirements |
Applications
| Automotive Power Input | Industrial Ethernet PHY Port |
|---|---|
Use Scenario: 12V battery rail in head unit, exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converter input. Use Value: Clamps transients to ≤21.5V, protecting 28V-rated input stages while surviving >1000 surges per AEC-Q200. |
Use Scenario: Protection of RJ45 magnetics common-mode pins against ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Bi-directional shunt clamp on transformer center-taps. Use Value: Symmetric clamping preserves signal integrity on differential pairs; 30kV ESD rating exceeds IEC 61000-4-2 Level 4. |
| Smart Meter AC Mains Interface | USB-C VBUS Line Protection |
Use Scenario: Secondary-side DC bus (24V) derived from AC mains, subject to fast transients per IEC 61000-4-4. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp before metering SoC power supply. Use Value: 21.5V clamping ensures <100ns response holds VIN below 24V-rated LDO absolute maximum rating. |
Use Scenario: VBUS line in USB-C receptacle, exposed to hot-plug inrush and cable ESD. IC Role / Device Role / Timing Role: Low-capacitance (<100pF typical) bi-directional clamp between VBUS and GND. Use Value: Sub-22V clamping prevents damage to USB PD controller during 15kV contact discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA-13 (Diodes Inc.) | Same electrical specs but 600W rating (vs. 3000W); SMB package (smaller thermal mass) | Not suitable for load-dump or high-energy surges; limited to ESD/lightning secondary protection | Select only when peak pulse energy is <100mJ and board space is constrained |
| 1.5SMC13CA (ON Semiconductor) | Identical 3000W rating and 13V VRWM, but slightly higher clamping (22.0V vs. 21.5V); same SMC package | Marginally reduced protection level for 24V systems near absolute max ratings | Acceptable where 0.5V clamping difference is within system design margin |
Compared with SMBJ13CA-13, the 3.0SMCJ13CA-13 delivers 5× higher surge energy handling; versus 1.5SMC13CA, it offers tighter clamping control critical for 24V rail protection where 0.5V headroom affects reliability.
Availability
3.0SMCJ13CA-13 is available at Aetrix Electronics and suitable for automotive infotainment power inputs, industrial Ethernet PHY ports, smart meter DC buses, and USB-C VBUS lines requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 3.0SMCJ13CA-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 sales operations across Asia, Europe, and the Americas.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for automotive and industrial applications demanding AEC-Q200 compliance, high surge robustness, and long-term parametric stability under thermal stress.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ13CA-13 under standard test conditions?
The maximum clamping voltage is 21.5V, measured at 139.5A peak pulse current using the standardized 10×1000μs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range (−55°C to +150°C) and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events.
Is the 3.0SMCJ13CA-13 unidirectional or bidirectional, and how is polarity indicated?
The 3.0SMCJ13CA-13 is a bi-directional TVS diode with symmetrical avalanche characteristics in both forward and reverse bias. It has no cathode band or polarity marking - the device functions identically regardless of terminal orientation, making it ideal for AC-coupled or floating signal lines.
Does this part meet automotive qualification standards?
The 3.0SMCJ13CA-13 is qualified to JEDEC high-reliability standards referenced in AEC-Q200 and manufactured in IATF 16949 certified facilities. While not itself an AEC-Q200 "Q-suffix" part, it is the commercial-grade counterpart to automotive-qualified variants and is widely deployed in non-safety-critical automotive modules such as infotainment and body control units.
What is the recommended PCB pad layout for optimal thermal and electrical performance?
Diodes specifies a minimum 8.00 mm² copper land area per terminal (e.g., 2.8mm × 2.8mm) to achieve full 3000W rating. The suggested SMC pad layout includes 6.90mm pad width (C), 4.40mm spacing (G), and 9.40mm overall length (X1), all per the latest package outline document at diodes.com/package-outlines.html.
3.0SMCJ13CA-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 139.5A
- 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
3.0SMCJ13CA-13 FAQ
1.How can I place an order for 3.0SMCJ13CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ13CA-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 3.0SMCJ13CA-13 reliable?
The price and inventory of 3.0SMCJ13CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ13CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ13CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ13CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ13CA-13?
3.0SMCJ13CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ13CA-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 3.0SMCJ13CA-13?
For technical support, including 3.0SMCJ13CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ13CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ13CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ13CA-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 3.0SMCJ13CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ13CA-13?
All 3.0SMCJ13CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ13CA-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 3.0SMCJ13CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ13CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ13CA-13 Tags

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ESD9B5.0ST5G
onsemi

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DESD3V3E1BL-7B
Diodes Incorporated

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onsemi

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D5V0H1B2LP-7B
Diodes Incorporated

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Diodes Incorporated

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DESD5V0U1BA-7
Diodes Incorporated

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ESD5Z5.0T1G
onsemi

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DESD5V0U1BB-7
Diodes Incorporated

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D12V0L1B2LP-7B
Diodes Incorporated

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PESD2V0Y1BSFYL
Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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D5V0L1B2WS-7
Diodes Incorporated
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