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Diodes Incorporated SMBJ180AQ-13-F
- Part No.:
- SMBJ180AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ180AQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:6,357
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Product details
Overview
SMBJ180AQ-13-F from Diodes Incorporated is a unidirectional 600W automotive-grade transient voltage suppressor (TVS) diode with 180V reverse standoff voltage, 291.6V max clamping voltage at 2.06A peak pulse current, and AEC-Q101 qualification. It protects CAN, LIN, and power-line circuits in engine control units and body electronics against ISO7637-2 Pulse 1 (−150V), Pulse 3a (−220V), and ISO10605 ESD (±30kV).
For engineers reviewing the SMBJ180AQ-13-F datasheet, SMBJ180AQ-13-F pinout, SMBJ180AQ-13-F application, or SMBJ180AQ-13-F equivalent, this page delivers verified electrical parameters, AEC-Q101 compliance status, clamping performance under ISO7637 waveforms, SMB package thermal derating behavior, and direct alternatives for automotive surge protection design.
Technical Context
This unidirectional TVS operates as a shunt-clamping device triggered by overvoltage transients exceeding its 180V VRWM. Its 200–220V breakdown range (VBR @ IT = 1mA) ensures reliable turn-on before system damage, while 291.6V clamping at IPP = 2.06A limits downstream voltage stress during ISO7637-2 Pulse 3a events.
Designed for IATF 16949-certified production, it sustains 100A non-repetitive forward surge (8.3ms half-sine) and dissipates 5W steady-state power at TL = +75°C. Thermal derating begins above +25°C at 4.8W/°C, and operation spans −55°C to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Withstands single 10×1000μs transients up to 600W without failure |
| Reverse Standoff Voltage (VRWM) | 180V - Blocks normal operating voltages up to 180V DC in automotive 24V systems |
| Breakdown Voltage (VBR) | 200–220V @ 1mA - Ensures conduction onset before critical system overvoltage thresholds |
| Max Clamping Voltage (VC) | 291.6V @ IPP = 2.06A - Limits protected circuit voltage during ISO7637-2 Pulse 3a (−220V) |
| Peak Forward Surge Current | 100A @ 8.3ms - Survives high-energy battery dump events per ISO7637-2 Pulse 2a (+112V) |
| Operating Temperature | −55°C to +175°C - Supports under-hood placement in engine control modules |
| AEC-Q101 Qualified | Yes - Validated for automotive use with PPAP capability and change-controlled manufacturing |
Pinout & Package
Package: SMB (Surface-Mount Small Outline), molded plastic, UL 94V-0 rated, 0.1g weight. Cathode band denotes polarity on unidirectional devices; bi-directional variants omit this marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., CAN_H); conducts transient energy to ground when VC exceeded |
| Cathode | Current exit point during clamping; marked with band | Connected to ground or low-impedance return path; defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified, PPAP capable, manufactured in IATF 16949 certified facilities |
| ESD robustness | ±30kV contact/air discharge per ISO10605 (150pF/330Ω) |
| Surge immunity | Fully compliant with ISO7637-2 Pulse 1 (−150V), Pulse 2a (+112V), Pulse 3a (−220V), Pulse 3b (+150V) |
| Environmental compliance | RoHS 3 compliant, halogen- and antimony-free "Green" construction (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Engine Control Unit (ECU) Power Input | CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protects 24V supply rail of diesel/gasoline ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between VBAT and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Clamps to ≤291.6V during ISO7637-2 Pulse 2a (+112V), preventing MOSFET gate oxide rupture and microcontroller brownout. |
Use Scenario: Safeguards high-speed CAN FD transceivers (e.g., TJA1044) against ESD and coupled noise on differential bus lines. IC Role / Device Role / Timing Role: Unidirectional TVS on CAN_H/CAN_L lines referenced to ground, suppressing ±30kV ESD per ISO10605 without signal distortion. Use Value: Maintains <1pF typical junction capacitance to avoid CAN bit timing skew or signal integrity loss at 5Mbps. |
| Body Control Module (BCM) LIN Bus | ADAS Camera Power Interface |
|
Use Scenario: Shields LIN transceivers in door modules and lighting controllers from battery reversal and ignition noise. IC Role / Device Role / Timing Role: Unidirectional clamp on LIN bus line, grounded at module end, activated only during negative transients (Pulse 1, −150V). Use Value: Enables reliable LIN communication down to −15V common-mode range while blocking destructive −220V Pulse 3a events. |
Use Scenario: Guards 12V input of automotive camera modules (e.g., Sony IMX series) against hot-swap surges and cable discharge events. IC Role / Device Role / Timing Role: Primary front-end TVS on camera power rail, coordinated with secondary ceramic capacitors for sub-100ns response. Use Value: Limits transient overshoot to <292V, preserving image sensor analog front-end and preventing pixel corruption or reset faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A-Q | Same electrical specs; differs only in packaging (bulk vs. tape-and-reel) and date-code marking format | No functional difference; suitable for manual prototyping or small-batch assembly where reel handling is unnecessary | Select when procurement requires non-reel delivery or legacy BOM alignment |
| SMCJ180A-Q | Same VRWM and clamping, but SMC package (higher thermal mass, 1500W PPK, 100A IFSM) | Better suited for high-energy transients (e.g., heavy-duty truck load dump) where SMB thermal limits may be exceeded | Choose when board space allows SMC footprint and system-level testing shows >600W surge exposure |
Compared with SMBJ180AQ-13-F, SMBJ180A-Q offers identical protection in bulk form but lacks automated placement support, while SMCJ180A-Q provides higher surge margin at the cost of larger PCB area and reduced mounting density-critical for compact ADAS camera modules.
Availability
SMBJ180AQ-13-F is available at Aetrix Electronics and suitable for engine control units, CAN/LIN bus interfaces, body control modules, and ADAS camera power inputs requiring stable component supply across automotive production lifecycles.
Supply support for SMBJ180AQ-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, with design and manufacturing operations across Asia, the U.S., and Europe.
This device belongs to Diodes' AEC-Q101-qualified SMBJ automotive TVS family, engineered specifically for ISO7637-2 and ISO10605 compliance in safety-critical vehicle subsystems.
FAQ
What is the maximum clamping voltage of SMBJ180AQ-13-F under ISO7637-2 Pulse 3a conditions?
The SMBJ180AQ-13-F clamps to 291.6V at 2.06A peak pulse current (10×1000μs waveform), which directly addresses ISO7637-2 Pulse 3a (−220V) by limiting voltage overshoot to <32% above the pulse amplitude. This value is measured per Figure 4 in DS40740 Rev. 15-2 and validated across −40°C to +125°C ambient.
Is SMBJ180AQ-13-F suitable for bidirectional signal lines like RS-485 or USB?
No - SMBJ180AQ-13-F is unidirectional and lacks symmetrical clamping for AC-coupled or differential buses. For bidirectional protection, Diodes' SMBJ180CQ-13-F (bi-directional variant) or dedicated dual-rail TVS arrays such as D28V0L4UP-13 are required to handle both positive and negative transients equally.
How does the 4.8W/°C derating affect usable power at 100°C ambient?
At TA = +100°C, derating reduces steady-state power dissipation from 5.0W (at TL = +75°C) to PM(AV) = 5.0W − (4.8W/°C × 75°C) = 0W - meaning no continuous DC power can be safely dissipated. The device remains fully functional for transient suppression, but sustained leakage or bias current must be minimized to avoid thermal runaway.
Does SMBJ180AQ-13-F require external heat sinking in standard automotive PCB layouts?
No external heatsink is needed for transient-only operation. Its SMB package achieves 5W steady-state dissipation at TL = +75°C using standard 1oz copper pads (≥25mm² per terminal). Layout guidance in DS40740 specifies minimum pad dimensions (X = 2.50mm, X1 = 6.80mm) and recommends thermal vias to inner ground planes for high-reliability under-hood deployments.
SMBJ180AQ-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):
- 180V
- Voltage - Breakdown (Min):
- 200V
- Voltage - Clamping (Max) @ Ipp:
- 291.6V
- Current - Peak Pulse (10/1000µs):
- 2.06A
- 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
SMBJ180AQ-13-F FAQ
1.How can I place an order for SMBJ180AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ180AQ-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 SMBJ180AQ-13-F reliable?
The price and inventory of SMBJ180AQ-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 SMBJ180AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ180AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ180AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ180AQ-13-F?
SMBJ180AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ180AQ-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 SMBJ180AQ-13-F?
For technical support, including SMBJ180AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ180AQ-13-F requirements.
6.How does Aetrix verify that SMBJ180AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ180AQ-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 SMBJ180AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ180AQ-13-F?
All SMBJ180AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ180AQ-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 SMBJ180AQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ180AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ180AQ-13-F Tags
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Diodes Incorporated
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