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Diodes Incorporated SMCJ26CAQ-13-F
- Part No.:
- SMCJ26CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ26CAQ-13-F.pdf
- Description:
- TVS DIODE 26VWM 42.1VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,475
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Product details
Overview
SMCJ26CAQ-13-F from Diodes Incorporated is a bidirectional automotive-grade transient voltage suppressor (TVS) diode in SMC package, rated for 26 V reverse standoff voltage, 42.1 V max clamping voltage at 35.6 A peak pulse current, and 3000 W peak pulse power (10/1000 µs). It protects automotive ECUs against ISO 7637-2 pulses 1, 2a, 2b, 3 and ISO 10605 ESD events, deployed in ADAS power rails and HVAC control modules.
For engineers reviewing the SMCJ26CAQ-13-F datasheet, SMCJ26CAQ-13-F pinout, SMCJ26CAQ-13-F application, or SMCJ26CAQ-13-F equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC package thermal robustness, and compliance with automotive surge/ESD standards-critical for body control and infotainment powerline protection.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VRWM), but triggers into low-impedance conduction when transient voltage exceeds its breakdown range (28.9–31.9 V). Its bidirectional symmetry enables protection of AC-coupled or floating signal/power lines without polarity constraints.
The device uses planar junction construction for stable leakage (<5 µA at 26 V) and repeatable clamping performance across temperature (−65 °C to +150 °C). Its 3000 W peak pulse rating reflects energy absorption capacity per standardized 10/1000 µs waveform, validated under AEC-Q101 stress testing including HTGB, HTRB, and TCT.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 26 V - Maximum continuous DC or RMS voltage the device blocks without significant leakage. |
| Breakdown Voltage (VBR) @ IT = 1 mA | 28.9–31.9 V - Voltage at which device transitions from blocking to clamping; defines minimum overvoltage threshold. |
| Max Clamping Voltage (VC) @ Ipp = 35.6 A | 42.1 V - Maximum voltage seen by protected circuit during 10/1000 µs surge; determines downstream IC survivability. |
| Peak Pulse Power (PPPM) | 3000 W - Energy-handling capacity per single transient event; enables robust protection in alternator load-dump scenarios. |
| Package | SMC (DO-214AB) - Surface-mount package with 6.60–7.11 mm body length, optimized for high thermal dissipation in automotive PCB layouts. |
| AEC-Q101 Qualified | Yes - Validated for automotive reliability including temperature cycling, high-temp reverse bias, and mechanical shock per AEC standard. |
| Standards Compliance | ISO 7637-2 (Pulses 1, 2a, 2b, 3) and ISO 10605 - Certified for full automotive electrical environment immunity testing. |
Pinout & Package
SMCJ26CAQ-13-F is a 2-terminal bidirectional TVS diode in SMC (DO-214AB) package. The cathode band is absent due to symmetrical construction; both terminals are functionally identical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Surge current path | Either terminal conducts during positive or negative transients; no polarity dependency in layout placement. |
| Cathode / Anode (bidirectional) | Clamping node | Provides low-impedance shunt path to ground or rail when voltage exceeds VBR in either direction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating buses without external polarity management. |
| 3000 W peak pulse power | Supports high-energy load dump transients common in 12 V automotive systems without degradation. |
| AEC-Q101 qualification | Guarantees reliability across extended temperature range (−65 °C to +150 °C) and lifetime stress conditions. |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage stress on downstream components while maintaining fast response time (<1 ns). |
Applications
| ADAS Power Rail Protection | HVAC Motor Driver Interface |
|---|---|
Use Scenario: Protecting camera module power input from alternator load dump and inductive kickback in autonomous driving systems. IC Role / Device Role / Timing Role: Shunt TVS placed between 12 V supply and ground, clamping transients before they reach image sensor and SoC power domains. Use Value: Limits voltage excursion to ≤42.1 V during 35.6 A surges, preventing latch-up or permanent damage to 28 nm imaging processors. | Use Scenario: Safeguarding microcontroller I/O and gate driver power pins in HVAC blower motor control units. IC Role / Device Role / Timing Role: Bidirectional TVS connected across motor driver supply rails to absorb back-EMF and switching spikes. Use Value: Maintains functional safety integrity by suppressing >1 kV transients per ISO 7637-2 Pulse 1, ensuring ASIL-B compliance. |
| Infotainment Head Unit Power Input | Body Control Module (BCM) CAN Transceiver Line |
Use Scenario: Securing USB-C PD and display power inputs in automotive head units exposed to battery disconnection events. IC Role / Device Role / Timing Role: Primary clamping device on main 12 V input rail, upstream of DC-DC converters and PMICs. Use Value: Withstands 3000 W surges without parametric shift, preserving boot sequence reliability after repeated load dumps. | Use Scenario: Protecting isolated CAN FD transceivers from coupled surges on vehicle chassis-ground-referenced wiring harnesses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across CAN_H/CAN_L differential pair to clamp common-mode transients. Use Value: Enables <1 ns response to ESD events per ISO 10605, preventing bit errors and bus lockup in 5 Mbps CAN FD networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ26CAHM3/I | Same electrical specs; different tape-and-reel packaging (13-inch reel vs. 7-inch) and moisture sensitivity level (MSL 1 vs. MSL 3). | No functional difference in circuit protection; reel size affects SMT line setup and dry-pack requirements. | Select based on assembly line feeder compatibility and humidity exposure during storage. |
| SMCJ26CAHV6G | Identical VRWM, VBR, VC, and PPPM; differs in qualification documentation-PPAP support confirmed for HV6G, not explicitly stated for AQ-13-F. | Both meet AEC-Q101, but HV6G has full PPAP documentation package for Tier-1 automotive sourcing. | Choose HV6G when formal PPAP submission to OEM is mandatory; AQ-13-F suffices for Tier-2 or non-PPAP programs. |
Compared with SMCJ26CAHM3/I and SMCJ26CAHV6G, the SMCJ26CAQ-13-F offers identical clamping performance and AEC-Q101 reliability but targets cost-sensitive, high-volume automotive production where MSL3 handling and streamlined PPAP are acceptable trade-offs.
Availability
SMCJ26CAQ-13-F is available at Aetrix Electronics and suitable for ADAS sensor modules, HVAC motor controllers, and infotainment head units requiring stable component supply across multi-year automotive production cycles.
Supply support for SMCJ26CAQ-13-F 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 components for automotive, industrial, and computing markets.
The Automotive Grade TVS portfolio-including SMAJ/SMBJ/SMCJ/3.0SMCJ families-is engineered specifically for ISO 7637-2 and ISO 10605 compliance in harsh vehicle environments, with emphasis on clamping consistency and long-term parametric stability.
FAQ
Is SMCJ26CAQ-13-F unidirectional or bidirectional?
SMCJ26CAQ-13-F is a bidirectional TVS diode, indicated by the "C" suffix in its part number. It provides symmetrical clamping for both positive and negative transients, making it suitable for AC-coupled lines, differential buses like CAN, and floating power domains without polarity constraints.
What is the maximum operating temperature for SMCJ26CAQ-13-F?
The device is rated for operation from −65 °C to +150 °C ambient, validated per AEC-Q101 test conditions including high-temperature reverse bias (HTRB) at 150 °C for 1000 hours. This ensures stable leakage current (<5 µA) and clamping voltage (≤42.1 V) across full automotive under-hood temperature ranges.
Does SMCJ26CAQ-13-F require a heatsink in typical automotive applications?
No heatsink is required. The SMC (DO-214AB) package provides sufficient thermal mass and PCB copper area coupling to dissipate transient energy. In standard 1 oz. copper layouts with ≥100 mm² thermal pad, the device handles repeated 3000 W surges without exceeding junction temperature limits per JEDEC JESD22-A108.
How does SMCJ26CAQ-13-F differ from SMAJ26CAQ or SMBJ26CAQ?
SMCJ26CAQ-13-F delivers 3000 W peak pulse power in SMC package, whereas SMAJ26CAQ (SMA) and SMBJ26CAQ (SMB) offer 400 W and 600 W respectively. The larger SMC footprint enables higher surge current handling (35.6 A vs. 17.2 A and 25.8 A), making it suitable for primary power rail protection rather than secondary or signal-line use.
SMCJ26CAQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- 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):
- 35.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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
SMCJ26CAQ-13-F FAQ
1.How can I place an order for SMCJ26CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ26CAQ-13-F 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 SMCJ26CAQ-13-F reliable?
The price and inventory of SMCJ26CAQ-13-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ26CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ26CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ26CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ26CAQ-13-F?
SMCJ26CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ26CAQ-13-F 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 SMCJ26CAQ-13-F?
For technical support, including SMCJ26CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ26CAQ-13-F requirements.
6.How does Aetrix verify that SMCJ26CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ26CAQ-13-F 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 SMCJ26CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ26CAQ-13-F?
All SMCJ26CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ26CAQ-13-F, 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 SMCJ26CAQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ26CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ26CAQ-13-F Tags
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