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Diodes Incorporated 3.0SMCJ26AQ-13
- Part No.:
- 3.0SMCJ26AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ26AQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,958
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Product details
Overview
3.0SMCJ26AQ-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode designed for primary-level 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 IEC-61000-4-2 ESD rating 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 3.0SMCJ26AQ-13 datasheet, 3.0SMCJ26AQ-13 pinout, 3.0SMCJ26AQ-13 application, or 3.0SMCJ26AQ-13 equivalent, this page delivers verified electrical parameters, SMC package mechanical data, clamping performance under 10/1000μs surge, AEC-Q101 qualification status, and direct alternatives with validated voltage and power trade-offs.
Technical Context
This TVS operates as a silicon avalanche diode, triggered when reverse voltage exceeds its 26V VRWM threshold, entering low-impedance clamping mode within nanoseconds. Its glass-passivated die ensures stable breakdown characteristics and low leakage (<5μA at VRWM).
The device sustains 3000W peak pulse power per 10×1000μs waveform and handles up to 300A non-repetitive forward surge (8.3ms half-sine), with thermal derating above +25°C per JEDEC JESD22-A104. It is rated for -55°C to +150°C junction operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - Clamps 10/1000μs surges without failure under defined PCB land pattern (8mm²) |
| Reverse Standoff Voltage (VRWM) | 26.0V - Maximum continuous DC or RMS voltage before significant leakage begins |
| Clamping Voltage (VC) | 42.1V @ 71.3A - Maximum voltage seen by protected circuit during worst-case 10/1000μs transient |
| Breakdown Voltage (VBR) | 28.9–31.9V @ 1mA - Confirmed avalanche onset range ensuring reliable triggering margin |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - Withstands system-level electrostatic discharge events |
| Operating Temperature | -55°C to +150°C - Validated for under-hood automotive environments and industrial power supplies |
Pinout & Package
Package: SMC (DO-214AB), molded plastic, UL 94V-0 rated, 0.21g weight. Cathode band denotes polarity on unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lower-potential rail; defines clamping path direction |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 24V supply); carries full transient current to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Lead-free, RoHS 3 & "Green" compliant | Contains <900ppm Br, <900ppm Cl, <1000ppm Sb - meets global environmental compliance mandates |
| Low clamping ratio (VC/VRWM = 1.62) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
Applications
| Automotive Power Input | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 24V battery-fed infotainment head unit exposed to ISO 7637-2 Pulse 5a (load dump) and Pulse 1/2a transients. IC Role / Device Role: Primary overvoltage clamp on main DC input rail upstream of DC-DC converters. Use Value: Limits transient voltage to ≤42.1V, protecting 40V-rated buck controllers and microcontrollers from destructive overvoltage. |
Use Scenario: 24V digital input channel on programmable logic controller subjected to field-wiring induced surges. IC Role / Device Role: Front-end transient suppression before optocoupler or Schmitt-trigger input stage. Use Value: Absorbs >2.5kV ring-wave surges per IEC 61000-4-5 Level 3 while maintaining <5μA leakage at 24V nominal. |
| Telecom PoE Interface | Medical Equipment DC Bus |
Use Scenario: Secondary-side 24V output of IEEE 802.3at PoE+ PSE controller powering remote access points. IC Role / Device Role: Output rail protector against backfeed transients and hot-swap inrush-induced spikes. Use Value: Clamps 10/1000μs surges up to 3000W without degradation, preserving PoE compliance and downstream ASIC integrity. |
Use Scenario: 28V auxiliary power bus in portable diagnostic imaging equipment with strict EMC requirements. IC Role / Device Role: Final-stage surge guard before analog front-end and ADC power domains. Use Value: Provides 30kV ESD immunity per IEC 61000-4-2 while meeting IEC 60601-1-2 4th edition surge immunity thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A-13-F | Lower peak power (600W), same VRWM (26V), higher VC (43.0V), SMB package | Not suitable for ISO 7637-2 Pulse 5a; limited to IEC 61000-4-5 Level 2 or lower-energy transients | Select when board space is constrained and surge energy is ≤600W; verify clamping margin with downstream 40V-rated ICs |
| SMCJ26A-13 | Same 3000W rating and SMC package, but lacks AEC-Q101 qualification and automotive change control | Acceptable for industrial use only; not approved for automotive PPAP or IATF 16949 traceability requirements | Choose for cost-sensitive non-automotive designs where AEC-Q101 documentation and lot traceability are not required |
Compared with SMBJ26A-13-F and SMCJ26A-13, the 3.0SMCJ26AQ-13 uniquely combines AEC-Q101 qualification, 3000W surge capacity, and automotive-grade manufacturing controls-making it the only option qualified for safety-critical vehicle subsystems requiring documented PPAP and IATF 16949 sourcing.
Availability
3.0SMCJ26AQ-13 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial PLCs, PoE-powered networking gear, and medical DC power buses requiring stable component supply across multi-year production cycles.
Supply support for 3.0SMCJ26AQ-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.
The 3.0SMCJ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in automotive and industrial environments where sustained surge immunity and process traceability are mandatory.
FAQ
What does the 'Q' suffix signify in 3.0SMCJ26AQ-13?
The 'Q' suffix indicates full AEC-Q101 qualification, including temperature cycling, HTRB, and surge testing per automotive standards. It also confirms production in IATF 16949-certified facilities with PPAP documentation support and controlled change management-required for Tier 1 automotive suppliers.
Can 3.0SMCJ26AQ-13 replace a bidirectional TVS in a 24V CAN bus line?
No. The 3.0SMCJ26AQ-13 is unidirectional and lacks symmetrical clamping for AC-coupled signals. For CAN FD interfaces, a bidirectional part like 3.0SMCJ26CA-13 is required to protect both positive and negative transients without rectifying the differential signal.
What is the minimum PCB copper area needed to sustain 3000W peak power?
Per Diodes' datasheet Figure 1 and Note 6, the device requires 8.00mm² (0.013mm thick) copper land area per terminal to achieve full 3000W rating. Reducing pad size or copper thickness will linearly derate peak power capability and increase clamping voltage under surge conditions.
How does its clamping voltage compare to 3.0SMCJ24AQ-13 and 3.0SMCJ28AQ-13?
At rated IPP, 3.0SMCJ24AQ-13 clamps at 38.9V, 3.0SMCJ26AQ-13 at 42.1V, and 3.0SMCJ28AQ-13 at 45.4V. The 26V variant offers optimal balance between VRWM margin (26V vs. 24V nominal) and clamping headroom (42.1V vs. 40V-rated downstream components) in 24V systems.
3.0SMCJ26AQ-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:
- 1
- Bidirectional Channels:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ26AQ-13 FAQ
1.How can I place an order for 3.0SMCJ26AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ26AQ-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 3.0SMCJ26AQ-13 reliable?
The price and inventory of 3.0SMCJ26AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ26AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ26AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ26AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ26AQ-13?
3.0SMCJ26AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ26AQ-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 3.0SMCJ26AQ-13?
For technical support, including 3.0SMCJ26AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ26AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ26AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ26AQ-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 3.0SMCJ26AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ26AQ-13?
All 3.0SMCJ26AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ26AQ-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 3.0SMCJ26AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ26AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ26AQ-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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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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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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