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Diodes Incorporated SMBJ75AQ-13-F
- Part No.:
- SMBJ75AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ75AQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:4,489
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Product details
Overview
SMBJ75AQ-13-F from Diodes Incorporated is a unidirectional 600W surface-mount automotive transient voltage suppressor (TVS) diode with 75V reverse standoff voltage, 83.3V minimum breakdown voltage, and 121V maximum clamping voltage at 4.9A peak pulse current. It is AEC-Q101 qualified and designed to protect CAN, LIN, and power-line circuits in engine control units and body electronics against ISO7637-2 Pulse 1/2a/3a/3b transients and ISO10605 ESD events.
For engineers reviewing the SMBJ75AQ-13-F datasheet, SMBJ75AQ-13-F pinout, SMBJ75AQ-13-F application, or SMBJ75AQ-13-F equivalent, this device is selected for high-reliability 12V/24V automotive subsystems requiring precise clamping, low leakage (<0.5µA), and IATF 16949-certified manufacturing traceability.
Technical Context
This TVS diode operates as a unidirectional clamping device in series with the protected line and ground, activating only during negative-going transients exceeding its breakdown threshold. Its 121V clamping voltage limits surge energy delivered to downstream ICs under ISO7637-2 Pulse 1 (−150V) and Pulse 3a (−220V) waveforms.
Thermal performance is defined by 5.0W steady-state dissipation at TL = +75°C and 4.8W/°C derating above +25°C ambient. The −55°C to +175°C operating junction temperature range supports under-hood deployment in powertrain and chassis modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 10×1000μs transients without failure per ISO7637-2 compliance testing |
| Reverse Standoff Voltage (VRWM) | 75.0V - maximum continuous DC or RMS voltage before significant leakage; matches 24V system nominal + margin |
| Breakdown Voltage (VBR) | 83.3–92.1V @ IT = 1.0mA - ensures reliable turn-on prior to damage threshold of protected 75V-rated components |
| Clamping Voltage (VC) | 121.0V @ IPP = 4.9A - limits transient voltage seen by downstream CAN transceivers or microcontrollers |
| Reverse Leakage (IR) | <0.5µA @ VRWM - prevents battery drain in always-on vehicle networks such as LIN or CAN FD standby modes |
| Operating Temperature | −55°C to +175°C - enables placement near engines, inverters, or braking systems without thermal derating loss |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic body with UL 94V-0 flammability rating, 0.1g mass, and matte tin lead finish compliant with RoHS 3 and halogen-free "Green" requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (marked band) | Anode-to-cathode conduction path | Connects to protected line; clamps negative transients to ground when reverse-biased beyond VBR |
| Anode | Reference terminal | Connected to system ground plane; establishes reference for clamping action and defines unidirectional polarity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use with HTOL, TC, UHAST, and ESD testing per stress test plan |
| ISO7637-2 Pulse 1/2a/3a/3b compliance | Clamps −150V, +112V, −220V, and +150V transients without degradation or latch-up |
| ISO10605 ESD robustness | Withstands 30kV air and contact discharge without parameter shift or catastrophic failure |
| Lead-free & halogen-free construction | Meets EU RoHS 3 (2015/863/EU) and Diodes' "Green" definition: Br+Cl <1500ppm, Sb <1000ppm |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 24V supply input and CAN-H/CAN-L lines from load dump and alternator ripple-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp negative transients during relay switching or battery disconnection. Use Value: Limits clamped voltage to 121V, ensuring survival of 100V-rated DC-DC converters and CAN transceivers under ISO7637-2 Pulse 1 (−150V). |
Use Scenario: Shields LIN bus transceivers and door module microcontrollers from ESD events during assembly and service. IC Role / Device Role / Timing Role: Mounted directly at connector entry point to shunt fast-rising ESD pulses (IEC 61000-4-2) before reaching silicon. Use Value: Sub-0.5µA leakage preserves battery life in sleep-mode LIN nodes; 30kV contact discharge immunity meets OEM ESD validation requirements. |
| Advanced Driver Assistance Systems (ADAS) | Electric Power Steering (EPS) |
Use Scenario: Safeguards camera module power and GMSL serial interface against ignition noise and inductive kickback in front-end sensor clusters. IC Role / Device Role / Timing Role: Placed on 12V bias rail upstream of DC-DC regulators to prevent overvoltage shutdown during cranking transients. Use Value: 600W peak power rating absorbs repetitive 10×1000μs pulses from adjacent solenoid drivers without thermal runaway. |
Use Scenario: Protects motor driver gate drivers and position sensor interfaces from commutation spikes in brushless EPS motors. IC Role / Device Role / Timing Role: Connected across H-bridge high-side FET source and ground to clamp inductive flyback during PWM switching. Use Value: 175°C max junction temperature allows direct PCB mounting near motor control ICs without heatsink dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A-Q | Same electrical specs; differs only in packaging marking (no -13-F suffix) and tape/reel quantity (5,000 vs. 3,000) | Identical functional replacement; used in legacy designs with different logistics coding | Select when sourcing from alternate Diodes distribution channels where -13-F is unavailable |
| SMCJ75A-Q | Same VRWM/VBR/VC but in larger SMC (DO-214AB) package with 1500W peak power and higher IFSM (150A) | Used where board space permits and higher surge margin is required (e.g., alternator output lines) | Choose for enhanced ruggedness in high-energy zones; avoid if SMB footprint and thermal profile are fixed |
Compared with SMBJ75AQ-13-F, SMBJ75A-Q offers identical protection performance with minor logistics variation, while SMCJ75A-Q trades compact SMB size for 2.5× higher surge capacity-critical for alternator feed lines but incompatible with dense ECU layouts.
Availability
SMBJ75AQ-13-F is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for SMBJ75AQ-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 with IATF 16949-certified fabrication and assembly.
The SMBJ(AQ) series is engineered specifically for AEC-Q101-compliant transient suppression in 12V/24V automotive subsystems, emphasizing low clamping ratio, extended temperature operation, and PPAP-ready manufacturing control.
FAQ
What is the polarity configuration of SMBJ75AQ-13-F?
SMBJ75AQ-13-F is a unidirectional TVS diode with cathode indicated by a band on the SMB package. It conducts only during reverse-bias overvoltage events, making it suitable for DC power rail protection where polarity is fixed. Unlike bi-directional variants (e.g., SMBJ75CAQ), it does not suppress positive transients on grounded lines.
How does SMBJ75AQ-13-F meet ISO7637-2 Pulse 3a requirements?
SMBJ75AQ-13-F clamps to 121V at 4.9A, well below the −220V amplitude of ISO7637-2 Pulse 3a. Its 600W peak power rating and 10×1000μs waveform response ensure it absorbs the full energy of this fast-rising, long-duration transient without thermal failure or parameter shift, verified per AEC-Q101 stress testing.
Can SMBJ75AQ-13-F be used in 48V mild-hybrid systems?
No-its 75V VRWM and 121V VC are optimized for 24V nominal systems. In 48V architectures, transients exceed its clamping capability; higher-voltage variants like SMBJ130AQ (130V VRWM, 209V VC) are required to maintain safe margin above 48V ±20% operating range and load dump peaks.
What is the moisture sensitivity level (MSL) for SMBJ75AQ-13-F?
SMBJ75AQ-13-F has Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH without baking prior to reflow. This eliminates floor-life constraints and simplifies SMT line integration for high-volume automotive PCB assembly.
SMBJ75AQ-13-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- 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):
- 4.9A
- Power - Peak Pulse:
- 600W
- 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:
- SMB
SMBJ75AQ-13-F FAQ
1.How can I place an order for SMBJ75AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ75AQ-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 SMBJ75AQ-13-F reliable?
The price and inventory of SMBJ75AQ-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 SMBJ75AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ75AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ75AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ75AQ-13-F?
SMBJ75AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ75AQ-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 SMBJ75AQ-13-F?
For technical support, including SMBJ75AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ75AQ-13-F requirements.
6.How does Aetrix verify that SMBJ75AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ75AQ-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 SMBJ75AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ75AQ-13-F?
All SMBJ75AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ75AQ-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 SMBJ75AQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ75AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ75AQ-13-F Tags
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