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Diodes Incorporated SMCJ75AQ-13-F
- Part No.:
- SMCJ75AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ75AQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:3,844
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Product details
Overview
SMCJ75AQ-13-F from Diodes Incorporated is a unidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 75V reverse standoff voltage (VRWM), 83.3V minimum breakdown voltage (VBR), and 121V maximum clamping voltage (VC) at 12.4A peak pulse current (IPP). It protects CAN, LIN, and power-line circuits in engine control units and body electronics against ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD surges.
For engineers reviewing the SMCJ75AQ-13-F datasheet, SMCJ75AQ-13-F pinout, SMCJ75AQ-13-F application, or SMCJ75AQ-13-F equivalent, this page delivers verified AEC-Q101 qualification status, exact clamping performance under 10/1000μs waveform, thermal derating curves, and direct comparison to industry-standard alternatives for automotive surge protection design.
Technical Context
This TVS diode operates as a unidirectional clamping device with fast response time (<1 ns) and glass-passivated junction construction for stable avalanche behavior under repetitive transients. Its 75V VRWM ensures compatibility with 42V and 24V automotive systems while maintaining margin above nominal bus voltage.
It meets IATF 16949 manufacturing requirements and supports PPAP documentation. The device sustains 200A non-repetitive forward surge current (IFSM) at 8.3ms half-sine and exhibits <5μA reverse leakage at VRWM - critical for low-power always-on vehicle networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - handles ISO7637-2 Pulse 1 (−100V) without failure in 10/1000μs test condition |
| Reverse Standoff Voltage (VRWM) | 75V - sets clamping threshold above 24V/42V system nominal rails with safety margin |
| Breakdown Voltage (VBR) | 83.3–92.1V @ IT = 1.0mA - defines reliable avalanche initiation range for consistent clamping onset |
| Clamping Voltage (VC) | 121V @ IPP = 12.4A - limits downstream IC stress during ISO10605 30kV contact discharge |
| Steady-State Power (PM(AV)) | 5.0W @ TL = +75°C - enables continuous operation in under-hood ambient up to +125°C with PCB thermal relief |
| Operating Temperature | −55°C to +150°C - qualified for engine bay, transmission control, and ADAS sensor module environments |
| AEC-Q101 Qualified | Yes - validated for automotive use with change control, PPAP support, and IATF 16949 production |
Pinout & Package
Package: SMC (DO-214AB), molded plastic, UL 94V-0 rated, 0.21g weight, cathode band polarity indicator. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., CAN_H); conducts surge current to ground when VC exceeded |
| Cathode | Reference terminal / clamping node | Connected to system ground; establishes fixed reference for clamping action and defines unidirectional polarity |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W peak pulse rating | Enables single-device protection against worst-case ISO7637-2 Pulse 1 (−100V) on 12V/24V lines without parallel staging |
| Glass-passivated die | Ensures stable VBR over lifetime and temperature; eliminates parameter drift in high-humidity under-hood conditions |
| AEC-Q101 qualification | Validates reliability for automotive safety-critical modules including EPS, braking, and ADAS sensors |
| Lead-free, halogen-free, RoHS 3 compliant | Meets EU automotive supply chain requirements (Br+Cl <1500ppm, Sb <1000ppm) without compromising surge robustness |
Applications
| Engine Control Unit (ECU) Power Input | CAN FD Transceiver Protection |
|---|---|
|
Use Scenario: 12V battery feed to microcontroller power rail exposed to load dump and alternator ripple. IC Role / Device Role: Primary clamping element absorbing ISO7637-2 Pulse 5a energy before LDO or DC/DC converter. Use Value: Limits input voltage to ≤121V during −100V Pulse 1 event, preventing brownout or latch-up in 3.3V/5V logic supplies. |
Use Scenario: Bidirectional data line (CAN_H/CAN_L) in ADAS domain controller subjected to ESD coupling. IC Role / Device Role: Unidirectional TVS on CAN_H referenced to chassis ground; paired with bidirectional unit on CAN_L. Use Value: Clamps 30kV air discharge transients to ≤121V within <1ns, preserving signal integrity and avoiding PHY damage. |
| Body Control Module (BCM) LIN Bus | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: LIN physical layer interface in door module connected to 12V supply and external harness. IC Role / Device Role: Line-side TVS suppressing coupled transients from adjacent high-current loads (e.g., window motors). Use Value: Maintains LIN signal amplitude stability by limiting induced spikes to <121V, ensuring UART-level communication remains error-free. |
Use Scenario: High-side gate driver supply rail in EPS motor inverter exposed to inductive kickback. IC Role / Device Role: Clamp diode across gate driver VDD-to-ground, protecting CMOS inputs from >100V transients. Use Value: Prevents gate oxide rupture in 5V logic drivers by clamping overshoot to 121V with 12.4A peak handling capability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC75-13-F (Diodes Inc.) | Same VRWM (75V), lower PPK (600W), smaller SOD-123FL package | Limited to low-energy ESD-only protection; unsuitable for ISO7637-2 Pulse 1/2a | Select only for space-constrained LIN or sensor nodes where full 1500W surge immunity is not required. |
| SMBJ75A (ON Semiconductor) | Same VRWM (75V), same PPK (600W), SMB package (lower IFSM = 100A vs. 200A) | Lower surge endurance; fails under repeated Pulse 3a (−150V) events due to thermal limitation | Acceptable for cost-sensitive non-safety modules with limited surge exposure; avoid in powertrain or ADAS. |
Compared with SAC75-13-F and SMBJ75A, SMCJ75AQ-13-F delivers 2.5× higher peak power and 2× higher surge current rating - enabling single-point protection for high-risk automotive power and data lines without derating or redundancy.
Availability
SMCJ75AQ-13-F is available at Aetrix Electronics and suitable for engine control units, CAN FD interfaces, and electric power steering systems requiring stable component supply across extended automotive product lifecycles.
Supply support for SMCJ75AQ-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and computing markets.
This device belongs to the SMCJ-AQ series - engineered specifically for AEC-Q101-compliant automotive transient suppression, with optimized clamping ratio, thermal robustness, and PPAP-ready manufacturing traceability.
FAQ
What is the clamping voltage of SMCJ75AQ-13-F at 12.4A peak pulse current?
The maximum clamping voltage (VC) is 121V at IPP = 12.4A under the standard 10/1000μs waveform per REA and IEC 61000-4-5. This value is measured with unidirectional configuration and confirmed in Diodes' DS40741 Rev. 8 datasheet Table on page 3.
Is SMCJ75AQ-13-F bidirectional or unidirectional?
SMCJ75AQ-13-F is unidirectional, indicated by the absence of "C" in the part number suffix. It features a cathode band marking and is intended for DC-biased lines like power rails or CAN_H with ground reference - unlike bidirectional variants (e.g., SMCJ75CAQ-13-F) used on AC-coupled data lines.
Does this TVS diode meet AEC-Q101 requirements for automotive use?
Yes - SMCJ75AQ-13-F is fully AEC-Q101 qualified, manufactured in IATF 16949-certified facilities, and supports PPAP documentation. Its qualification covers temperature cycling, humidity testing, mechanical shock, and surge endurance per the AEC standard's stress test conditions.
What is the thermal derating behavior above +25°C ambient?
Peak pulse power derates linearly from 100% at +25°C to ~50% at +100°C per Figure 1 in DS40741. Steady-state power (PM(AV)) drops from 5.0W at TL = +75°C to zero at TL = +150°C, following the curve in Figure 6 - requiring proper PCB copper area for thermal dissipation in high-ambient zones.
SMCJ75AQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 75V
- Voltage - Breakdown (Min):
- 83.3V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 12.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
SMCJ75AQ-13-F FAQ
1.How can I place an order for SMCJ75AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ75AQ-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 SMCJ75AQ-13-F reliable?
The price and inventory of SMCJ75AQ-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 SMCJ75AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ75AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ75AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ75AQ-13-F?
SMCJ75AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ75AQ-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 SMCJ75AQ-13-F?
For technical support, including SMCJ75AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ75AQ-13-F requirements.
6.How does Aetrix verify that SMCJ75AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ75AQ-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 SMCJ75AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ75AQ-13-F?
All SMCJ75AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ75AQ-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 SMCJ75AQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ75AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ75AQ-13-F Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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