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Diodes Incorporated 3.0SMCJ26CA-13
- Part No.:
- 3.0SMCJ26CA-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ26CA-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,933
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Product details
Overview
3.0SMCJ26CA-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 26V reverse standoff voltage (VRWM), 42.1V maximum clamping voltage (VC) at 71.3A peak pulse current (IPP), and meets IEC-61000-4-2 ESD immunity (30kV air/30kV contact). It is used in industrial power supplies to safeguard downstream regulators and microcontrollers against lightning-induced surges.
For engineers reviewing the 3.0SMCJ26CA-13 datasheet, 3.0SMCJ26CA-13 pinout, 3.0SMCJ26CA-13 application, or 3.0SMCJ26CA-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current handling under 10/1000μs waveform, bi-directional symmetry for AC-coupled or floating interfaces, and SMC package thermal performance on 8mm² copper land.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device: when transient voltage exceeds its breakdown threshold (28.9–31.9V), it avalanches into low-impedance conduction to shunt surge energy away from sensitive circuitry. Its glass-passivated junction ensures stable leakage (<5μA at VRWM) and repeatable clamping behavior across temperature (-55°C to +150°C).
The 3.0SMCJ26CA-13 is rated for non-repetitive 8.3ms half-sine surges up to 300A (uni-directional only) and 10×1000μs waveform surges up to 71.3A. Derating begins above +25°C ambient per Fig. 1, with full power retained only below 25°C - critical for high-temperature industrial enclosure designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single 10×1000μs transients without failure, enabling protection against IEC 61000-4-5 Level 4 surges. |
| Reverse Standoff Voltage | 26V - maximum continuous DC or RMS AC voltage before significant leakage; sets upper limit for protected rail voltage. |
| Clamping Voltage @ IPP | 42.1V - maximum voltage seen by protected circuit during 71.3A transient; must be below absolute max rating of downstream ICs. |
| Breakdown Voltage Range | 28.9–31.9V - guaranteed avalanche onset window; ensures reliable triggering without premature conduction. |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against operator-handling ESD events in assembly and field use. |
| Operating Temperature | -55°C to +150°C - supports deployment in automotive engine bays, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; terminals are matte tin-plated for solderability per MIL-STD-202, Method 208. Bi-directional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Bi-directional terminals conduct equally in both directions; no cathode band - simplifies PCB layout for AC or floating signals. |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power | Enables single-device protection against high-energy surges (e.g., ISO 7637-2 Pulse 5a) without parallel stacking. |
| Glass-passivated die | Ensures long-term parameter stability and low leakage drift over 10+ years in harsh environments. |
| IEC-61000-4-2 ESD hardened | Eliminates need for external ESD diodes in USB, RS-485, or CAN interfaces where space is constrained. |
| RoHS 3 & "Green" compliant | Meets <900ppm Br/Cl and <1000ppm Sb; satisfies environmental compliance for EU, China RoHS, and automotive PPAP submissions. |
Applications
| Industrial PLC I/O Modules | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protecting 24V DC input terminals of programmable logic controller modules from load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed directly at connector entry point, upstream of DC-DC converter and isolation barrier. Use Value: Clamps 71.3A surges to ≤42.1V, preventing damage to 36V-rated input-stage MOSFETs and ensuring system uptime in factory automation. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller GPIOs in door module ECUs exposed to battery voltage spikes. IC Role / Device Role / Timing Role: Bi-directional TVS bridging LIN data line to chassis ground, suppressing ±100V/50ns fast transients per ISO 16750-2. Use Value: Maintains signal integrity during 10/1000μs surges while adding <0.5pF capacitance - no data rate degradation on 20kbps LIN networks. |
| Telecom Power Feeds | Renewable Energy Inverters |
|
Use Scenario: Shielding -48V DC telecom power distribution boards from lightning-induced common-mode surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Paired bi-directional TVS devices on positive/negative rails, referenced to isolated ground plane. Use Value: Withstands repeated 3000W pulses without parameter shift, meeting Telcordia GR-1089-CORE Level 3 surge immunity requirements. |
Use Scenario: Protecting DC-link monitoring circuits in solar string inverters subjected to grid-switching transients and nearby lightning strikes. IC Role / Device Role / Timing Role: Clamp placed across voltage divider input of isolated ADC, limiting transient stress on precision resistors and op-amps. Use Value: 42.1V clamping ensures monitored 600V DC-link signals remain within ±1% accuracy window during 10×1000μs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26CA-13 (Diodes Inc.) | Same 26V VRWM and bi-directional function, but 600W rating (SMB package); 40% smaller footprint, 70% lower IPP (29.2A). | Suitable for lower-energy threats (e.g., HBM ESD only); insufficient for IEC 61000-4-5 Level 3+ surges. | Select when board space is critical and surge threat level is defined as <1kW. |
| 1.5SMC26CA (ON Semiconductor) | Identical 26V VRWM and SMC package, but 1500W peak power (half rating); clamping voltage 45.7V at 32.8A IPP. | Limited to medium-risk applications like consumer-grade PoE injectors; fails under sustained 3000W test conditions. | Choose only if cost sensitivity outweighs surge margin requirements and qualification history is verified. |
Compared with SMBJ26CA-13 and 1.5SMC26CA, the 3.0SMCJ26CA-13 delivers 2× the pulse power headroom and 2.4× higher IPP, making it the sole choice for industrial and automotive systems requiring full IEC 61000-4-5 Level 4 compliance.
Availability
3.0SMCJ26CA-13 is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, and telecom power feed applications requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ26CA-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial and automotive markets.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio, engineered specifically for mission-critical overvoltage protection in harsh-environment systems where failure is not an option.
FAQ
What is the difference between uni-directional and bi-directional versions of the 3.0SMCJ26CA-13?
The 3.0SMCJ26CA-13 is bi-directional, meaning it clamps voltage transients of either polarity symmetrically - ideal for AC lines, differential buses, or floating DC rails. Uni-directional variants (e.g., 3.0SMCJ26A-13) have a cathode band and only protect against positive-going surges relative to ground; they cannot suppress negative excursions.
Can the 3.0SMCJ26CA-13 be used in parallel to increase surge current handling?
No - paralleling TVS diodes is not recommended due to mismatched breakdown voltages causing uneven current sharing. The 3.0SMCJ26CA-13 is rated for 71.3A at 42.1V under standardized 10×1000μs waveform; exceeding this requires system-level redesign, not device paralleling.
Does the 3.0SMCJ26CA-13 meet AEC-Q200 for automotive use?
The standard 3.0SMCJ26CA-13 is not AEC-Q200 qualified. Diodes offers automotive-grade equivalents with Q-suffix (e.g., 3.0SMCJ26CAQ-13), which undergo additional testing including temperature cycling, humidity bias, and mechanical shock - required for under-hood and safety-critical vehicle systems.
How does the 42.1V clamping voltage impact design margin for a 3.3V microcontroller I/O line?
The 42.1V clamping voltage applies only when protecting a 26V rail - it is not relevant for 3.3V I/O. For low-voltage signal lines, use dedicated low-capacitance TVS arrays (e.g., D3V3Z5U-7) with sub-10V clamping. The 3.0SMCJ26CA-13 is intended for primary-side power rail protection, not signal-level ESD.
3.0SMCJ26CA-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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 71.3A
- 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
3.0SMCJ26CA-13 FAQ
1.How can I place an order for 3.0SMCJ26CA-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ26CA-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 3.0SMCJ26CA-13 reliable?
The price and inventory of 3.0SMCJ26CA-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ26CA-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ26CA-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ26CA-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ26CA-13?
3.0SMCJ26CA-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ26CA-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 3.0SMCJ26CA-13?
For technical support, including 3.0SMCJ26CA-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ26CA-13 requirements.
6.How does Aetrix verify that 3.0SMCJ26CA-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ26CA-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 3.0SMCJ26CA-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ26CA-13?
All 3.0SMCJ26CA-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ26CA-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 3.0SMCJ26CA-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ26CA-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ26CA-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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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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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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