Diodes Incorporated 3.0SMCJ24CA-13
- Part No.:
- 3.0SMCJ24CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ24CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
3.0SMCJ24CA-13 from Diodes Incorporated is a bi-directional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It delivers 3000W peak pulse power dissipation, clamps transients to ≤38.9V at 77.1A (10/1000μs waveform), and maintains a 24V reverse standoff voltage with <5μA leakage at VRWM. It is used in industrial power supplies and automotive body control modules to protect downstream ICs from ESD and lightning-induced surges.
For engineers reviewing the 3.0SMCJ24CA-13 datasheet, 3.0SMCJ24CA-13 pinout, 3.0SMCJ24CA-13 application, or 3.0SMCJ24CA-13 equivalent, this device is selected for robust IEC-61000-4-2 ESD immunity (30kV air/30kV contact), low clamping ratio (VC/VRWM ≈ 1.62), and SMC package compatibility with high-current PCB layouts requiring ≥8mm² copper land area.
Technical Context
This bi-directional TVS operates symmetrically across both polarities without cathode marking, enabling bidirectional surge suppression on AC-coupled or floating signal paths. Its glass-passivated junction ensures stable breakdown behavior under repetitive transient stress and supports operation from –55°C to +150°C junction temperature.
The device complies with JEDEC reliability standards and achieves 8kV HBM / 1kV CDM ESD ratings. Clamping performance is specified per 10×1000μs waveform, and thermal derating follows Fig. 1 - power drops to ~70% at +100°C ambient due to junction-to-ambient thermal resistance inherent to the SMC package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs surges up to 77.1A without failure |
| Reverse Standoff Voltage | 24V - maximum continuous DC or RMS voltage before significant leakage |
| Clamping Voltage | 38.9V @ 77.1A - limits transient voltage seen by protected circuitry |
| Breakdown Voltage | 26.7–29.5V @ 1mA - defines sharp avalanche onset region for predictable triggering |
| Leakage Current | <5μA @ 24V - negligible standby power loss in always-on systems |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - exceeds Level 4 immunity requirements |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.21g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Terminal 1) | Surge current entry (negative polarity) | Connects to line being protected; forms symmetrical path with Cathode during negative transients |
| Cathode (Terminal 2) | Surge current entry (positive polarity) | Connects to line being protected; forms symmetrical path with Anode during positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional architecture | Eliminates need for polarity awareness in layout; protects AC or floating nodes without external diode pairing |
| Glass-passivated die | Ensures long-term stability of breakdown voltage and clamping consistency across temperature and life cycles |
| Low clamping ratio (VC/VRWM) | 1.62 - minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| RoHS-compliant & halogen-free | Meets EU Directive 2015/863/EU; Br+Cl <1500ppm, Sb <1000ppm - supports green manufacturing requirements |
Applications
| Industrial Power Input Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input rail in programmable logic controllers exposed to load dump and inductive switching noise. IC Role / Device Role: Primary surge shunt element placed upstream of DC-DC converters and microcontrollers. Use Value: Clamps 3000W transients to 38.9V, preventing damage to 3.3V/5V logic and enabling compliance with ISO 7637-2 Pulse 5a. |
Use Scenario: LIN bus transceiver power supply line in door module ECUs subject to battery disconnect spikes. IC Role / Device Role: Bidirectional clamp on VBAT-supplied LIN PHY ICs operating in harsh automotive environments. Use Value: Withstands 8.3ms half-sine surges up to 300A and provides 30kV ESD immunity without polarity-sensitive placement. |
| Telecom Data Line Surge Suppression | Renewable Energy Inverter DC Link |
Use Scenario: RS-485 communication lines in outdoor base stations subjected to induced lightning surges. IC Role / Device Role: Common-mode transient suppressor on differential pair shield and ground reference. Use Value: Symmetric clamping ensures equal protection on A/B lines; low leakage avoids signal integrity degradation at 10Mbps. |
Use Scenario: DC link between PV array and MPPT controller where voltage can reach 1000V but local transients exceed 100V. IC Role / Device Role: Secondary clamping stage after MOV primary protection to limit residual overshoot. Use Value: Fast response (<1ps) and low dynamic impedance reduce voltage overshoot to safe levels for IGBT gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA-13 (Diodes Inc.) | Same electrical specs but SMB package (lower 600W PPK rating) | Not suitable for 3000W surge events; limited to lower-energy interfaces like USB or CAN | Select only when board space is constrained and surge energy is ≤600W |
| 1.5SMCJ24CA (ON Semiconductor) | Identical 3000W rating and 24V VRWM, but lead finish differs (matte tin vs. annealed tin) | Same functional use; qualified to AEC-Q101 but lacks explicit IEC-61000-4-2 test reporting | Preferred for automotive PPAP programs requiring AEC-Q101 documentation traceability |
Compared with SMBJ24CA-13, the 3.0SMCJ24CA-13 enables higher surge handling in space-constrained SMC footprints; versus 1.5SMCJ24CA, it offers identical clamping but with Diodes' documented IEC-61000-4-2 validation and JEDEC-reliability assurance.
Availability
3.0SMCJ24CA-13 is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, telecom data line surge suppression, and renewable energy inverter DC link applications requiring stable component supply and full RoHS/halogen-free compliance.
Supply support for 3.0SMCJ24CA-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 North America.
This part belongs to the 3.0SMCJ series of high-power surface-mount TVS diodes, engineered specifically for industrial and automotive surge immunity where compact size, repeatable clamping, and high-energy absorption are critical.
FAQ
What is the maximum clamping voltage for 3.0SMCJ24CA-13 under standard test conditions?
The maximum clamping voltage is 38.9V when subjected to a 77.1A peak pulse current using the 10×1000μs waveform defined in IEC 61000-4-5. This value is measured at TA = +25°C with proper PCB thermal relief (8.00mm² copper land area), and remains within specification across the full operating temperature range of –55°C to +150°C.
Is 3.0SMCJ24CA-13 suitable for automotive applications?
Yes - while the standard 3.0SMCJ24CA-13 is not AEC-Q200 qualified, Diodes Incorporated offers automotive-grade variants (e.g., 3.0SMCJ24CAQ-13) with AEC-Q200 qualification, PPAP capability, and production in IATF 16949-certified facilities. The base part meets JEDEC high-reliability standards and shares identical electrical performance.
How does the bi-directional configuration affect PCB layout?
The bi-directional design eliminates polarity marking - no cathode band is present, and terminals are interchangeable. Layout requires symmetric trace routing and equal copper pour on both pads to maintain balanced clamping impedance. Thermal vias under both terminals are recommended to sustain 3000W pulse dissipation without localized overheating.
What is the minimum breakdown voltage and how is it tested?
The minimum breakdown voltage is 26.7V, measured at a 1.0mA test current (IT) using a 10–15ms ramped DC pulse. This parameter ensures reliable avalanche initiation before reaching the 38.9V clamping threshold, providing consistent protection margin across production lots and temperature extremes.
3.0SMCJ24CA-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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 77.1A
- 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
3.0SMCJ24CA-13 FAQ
1.How can I place an order for 3.0SMCJ24CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ24CA-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 3.0SMCJ24CA-13 reliable?
The price and inventory of 3.0SMCJ24CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ24CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ24CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ24CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ24CA-13?
3.0SMCJ24CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ24CA-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 3.0SMCJ24CA-13?
For technical support, including 3.0SMCJ24CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ24CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ24CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ24CA-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 3.0SMCJ24CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ24CA-13?
All 3.0SMCJ24CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ24CA-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 3.0SMCJ24CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ24CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ24CA-13 Tags

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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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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