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Diodes Incorporated 3.0SMCJ30CA-13
- Part No.:
- 3.0SMCJ30CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ30CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,886
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Product details
Overview
3.0SMCJ30CA-13 from Diodes Incorporated is a bi-directional 3000W surface-mount transient voltage suppressor (TVS) designed for overvoltage protection in DC power rails and signal lines. It features a 30V reverse standoff voltage (VRWM), 48.4V maximum clamping voltage (VC) at 62A peak pulse current, and IEC-61000-4-2 ESD immunity of 30kV (air/contact). It is used in industrial power supplies and automotive body control modules to absorb lightning-induced surges and ESD events.
For engineers reviewing the 3.0SMCJ30CA-13 datasheet, 3.0SMCJ30CA-13 pinout, 3.0SMCJ30CA-13 application, or 3.0SMCJ30CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VCC, peak pulse current capability under 10/1000μs waveform, bi-directional symmetry for AC-coupled lines, and SMC package thermal performance on 8mm² copper land.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold (33.3–36.8V), it avalanches into low-impedance conduction to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable leakage (<5µA at VRWM) and repeatable clamping behavior across temperature (-55°C to +150°C).
The device complies with IEC-61000-4-2 Level 4 (30kV air/30kV contact) and supports high-reliability applications via JEDEC-qualified construction. Its bi-directional configuration eliminates polarity concerns in AC or differential signal paths, and its 3000W peak pulse rating is specified per 10×1000μs waveform per Figure 2 of DS30818 Rev. 18-2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs transients up to 62A without failure |
| Reverse Standoff Voltage (VRWM) | 30.0V - maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 33.3–36.8V @ 1.0mA - guaranteed avalanche initiation window for predictable clamping onset |
| Clamping Voltage (VC) | 48.4V @ 62A - upper voltage limit imposed on protected circuit during full-rated surge |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - withstands worst-case human-body discharge events |
| Operating Temperature | -55°C to +150°C - qualified for under-hood automotive and industrial ambient conditions |
| Package | SMC (DO-214AB) - surface-mount footprint with 0.21g mass and UL 94V-0 flammability rating |
Pinout & Package
Package: SMC (DO-214AB), molded plastic body with matte tin-plated leads; moisture sensitivity level 1 per J-STD-020; bi-directional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (during positive half-cycle) | One terminal of symmetrical P-N junction; conducts when voltage exceeds VBR in either polarity |
| Cathode | Transient current entry (during negative half-cycle) | Second terminal of symmetrical P-N junction; identical electrical role to Anode in bi-directional configuration |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power | Enables protection of 24V/48V industrial buses against 2kV/1kA lightning surges per IEC-61000-4-5 |
| Bi-directional architecture | Eliminates orientation constraints in AC line, RS-485, CAN, or Ethernet PHY protection |
| Glass-passivated die | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| RoHS-compliant & halogen-free | Meets automotive and industrial environmental compliance requirements (Br+Cl <1500ppm, Sb <1000ppm) |
| JEDEC-qualified reliability | Validated for high-reliability applications per AEC-Q standards referenced in Diodes' product definitions |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24V DC input rail of programmable logic controller (PLC) power supply exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt clamping device that activates within nanoseconds to clamp voltage spikes to ≤48.4V, protecting downstream DC-DC converters and microcontrollers. Use Value: Prevents latch-up or permanent damage to 3.3V/5V logic ICs by limiting rail excursion below their absolute maximum ratings during 10/1000μs surges up to 62A. |
Use Scenario: LIN bus transceiver power line in vehicle door module subjected to battery disconnect transients and ESD from user interface buttons. IC Role / Device Role / Timing Role: Bi-directional overvoltage clamp placed between VBAT and GND, absorbing both positive and negative polarity transients without polarity-sensitive placement. Use Value: Maintains LIN communication integrity by holding bus voltage within ±40V envelope during 100V/50ms load dump events, meeting ISO 7637-2 Pulse 5a requirements. |
| RS-485 Communication Port | Smart Energy Meter AC Input Stage |
Use Scenario: Differential pair (A/B) and common-mode line of industrial RS-485 node connected to long cable runs susceptible to induced lightning surges. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices (one per line) providing symmetrical clamping to protect transceiver ESD structures and internal logic. Use Value: Limits transient-induced differential mode voltage to <50V, preventing receiver saturation and data corruption during 4kV EFT bursts per IEC-61000-4-4. |
Use Scenario: Rectified AC input stage of smart electricity meter where MOVs are unsuitable due to leakage and aging concerns. IC Role / Device Role / Timing Role: Primary overvoltage suppressor on DC bus after bridge rectifier, handling repetitive surges from grid switching and nearby lightning. Use Value: Delivers stable clamping performance over 10-year field life without parameter drift, unlike varistors, supporting metrology-grade accuracy compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA-13 (Diodes Inc.) | Same VRWM/VBR/VC specs but 600W rating (vs. 3000W); SMB package (smaller thermal mass) | Lower energy handling limits use to sub-10A surges; insufficient for IEC-61000-4-5 line surges | Select when space-constrained and surge threat is limited to ESD/HBM only |
| 1.5SMCJ30CA (ON Semiconductor) | Identical 3000W rating and 30V VRWM, but 49.9V VC @ 60A (slightly higher clamping) | Marginally reduced protection level for 3.3V/5V logic; same SMC package and mounting | Acceptable drop-in replacement if 1.5V clamping margin above 48.4V is acceptable in design |
Compared with SMBJ30CA-13, the 3.0SMCJ30CA-13 provides five times higher surge energy capacity for robust front-end protection; versus 1.5SMCJ30CA, it offers tighter clamping (48.4V vs. 49.9V), improving safety margin for low-voltage ICs in high-reliability systems.
Availability
3.0SMCJ30CA-13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, RS-485 communication interfaces, and smart energy meter designs requiring stable component supply and long-term lifecycle support.
Supply support for 3.0SMCJ30CA-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.
The 3.0SMCJxxCA series belongs to Diodes' high-power TVS portfolio, engineered specifically for industrial and automotive applications demanding reliable, high-energy transient suppression in compact SMC packages.
FAQ
What is the maximum clamping voltage of the 3.0SMCJ30CA-13 under rated surge conditions?
The maximum clamping voltage (VC) is 48.4V at 62.0A peak pulse current, measured per the 10×1000μs waveform defined in Figure 2 of DS30818 Rev. 18-2. This value represents the upper voltage limit imposed on the protected circuit during full-rated transient events and is guaranteed across -55°C to +150°C operating temperature range.
Is the 3.0SMCJ30CA-13 unidirectional or bidirectional, and how is polarity indicated?
The "CA" suffix denotes a bi-directional configuration; the device has no cathode band or polarity marking. It provides symmetrical clamping for both positive- and negative-polarity transients, making it suitable for AC lines, differential buses (e.g., RS-485, CAN), and floating power rails where polarity cannot be assumed during layout.
Can the 3.0SMCJ30CA-13 be used in automotive applications requiring AEC-Q200 qualification?
No - the standard 3.0SMCJ30CA-13 is not AEC-Q200 qualified. Diodes offers automotive-grade variants with "Q" suffix (e.g., 3.0SMCJ30CAQ-13) manufactured in IATF 16949-certified facilities and tested to AEC-Q200 stress requirements. These Q-suffix parts are listed on Diodes' automotive products webpage.
What is the thermal derating behavior above +25°C ambient temperature?
Per Figure 1 in DS30818 Rev. 18-2, peak pulse power derates linearly from 100% at +25°C to approximately 50% at +125°C. At +150°C, derated power drops to ~35% of 3000W. This curve applies to both power and peak current ratings and assumes mounting on 8.00mm² copper land areas per JEDEC standards.
3.0SMCJ30CA-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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- 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
3.0SMCJ30CA-13 FAQ
1.How can I place an order for 3.0SMCJ30CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ30CA-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 3.0SMCJ30CA-13 reliable?
The price and inventory of 3.0SMCJ30CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ30CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ30CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ30CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ30CA-13?
3.0SMCJ30CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ30CA-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 3.0SMCJ30CA-13?
For technical support, including 3.0SMCJ30CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ30CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ30CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ30CA-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 3.0SMCJ30CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ30CA-13?
All 3.0SMCJ30CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ30CA-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 3.0SMCJ30CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ30CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ30CA-13 Tags
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