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Diodes Incorporated SMBJ64AQ-13-F
- Part No.:
- SMBJ64AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ64AQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:4,627
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Product details
Overview
SMBJ64AQ-13-F from Diodes Incorporated is a unidirectional 600W surface-mount automotive transient voltage suppressor (TVS) diode with 64V reverse standoff voltage, 71.1V minimum breakdown voltage, and 103V maximum clamping voltage at 5.8A peak pulse current. It delivers AEC-Q101 qualification, ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD surge protection for 12V/24V vehicle power networks.
For engineers reviewing the SMBJ64AQ-13-F datasheet, SMBJ64AQ-13-F pinout, SMBJ64AQ-13-F application, or SMBJ64AQ-13-F equivalent, this device is selected for robust front-end protection in automotive body control modules, infotainment power rails, and ADAS sensor interfaces where precise clamping, low leakage (<0.5µA), and IATF 16949 traceable manufacturing are required.
Technical Context
This TVS diode operates as a unidirectional clamping device in series with the protected line and ground, activating above 64V VRWM to shunt transients into ground while limiting downstream voltage to ≤103V. Its 1.0mA test current ensures stable VBR measurement under standardized conditions.
Designed for automotive-grade reliability, it supports continuous operation from –55°C to +175°C junction temperature and withstands 100A non-repetitive forward surge current (8.3ms half-sine). The device complies with ISO7637-2 Pulse 1 (–150V), Pulse 2a (+112V), Pulse 3a (–220V), and Pulse 3b (+150V) waveforms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Sustains high-energy transients without failure per 10×1000μs waveform |
| Reverse Standoff Voltage (VRWM) | 64V - Blocks normal 12V/24V automotive system voltages with margin before clamping |
| Breakdown Voltage (VBR) | 71.1V min / 78.6V max @ 1.0mA - Defines precise activation threshold for overvoltage events |
| Clamping Voltage (VC) | 103V max @ 5.8A IPP - Limits downstream IC voltage during surge to safe level |
| Leakage Current (IR) | <0.5µA @ 64V - Ensures negligible standby power loss in always-on vehicle circuits |
| Operating Temperature | –55°C to +175°C - Supports under-hood and transmission-control module placement |
| AEC-Q101 Qualified | Yes - Validated for automotive use with PPAP capability and IATF 16949 manufacturing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic with UL 94V-0 flammability rating, 0.1g weight, and matte tin lead finish. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input line connection (cathode-banded side) | Connected to protected circuit node; polarity must match PCB silkscreen marking |
| Cathode | Ground reference terminal | Connected directly to chassis or low-impedance ground plane to minimize clamping loop inductance |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Handles ISO7637-2 Pulse 3a (–220V, 50Ω) without degradation in production life |
| Low clamping ratio (VC/VRWM = 1.61) | Minimizes overvoltage stress on downstream 75V-rated power management ICs |
| AEC-Q101 qualified & PPAP capable | Enables direct integration into Tier 1 automotive BOMs without requalification |
| RoHS 3 & halogen-free "Green" construction | Meets EU ELV Directive and OEM sustainability requirements for vehicle recycling |
Applications
| Body Control Module (BCM) Power Input | Infotainment System DC-DC Converter Input |
|---|---|
Use Scenario: Protects BCM microcontroller and CAN transceivers from load dump and jump-start surges on 12V main rail. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fuse output and input capacitor of buck converter. Use Value: Clamps 120V load dump transients to ≤103V, preserving 75V-input PMIC and avoiding brownout resets. |
Use Scenario: Shields USB-C PD controller and audio codec power supplies from ignition noise and alternator ripple. IC Role / Device Role / Timing Role: Front-end transient suppressor upstream of 5V/3.3V LDO regulators. Use Value: Sub-0.5µA leakage prevents battery drain in parked vehicle mode; 175°C rating survives dashboard mounting. |
| Rear Camera Module Power Line | ADAS Radar Sensor 24V Supply |
Use Scenario: Guards image sensor and serializer ICs against ESD events during connector mating/unmating. IC Role / Device Role / Timing Role: Bi-directional-capable layout (though SMBJ64AQ is unidirectional) used with reverse-polarity protection diode. Use Value: Withstands ±30kV contact discharge per ISO10605, preventing pixel corruption or sensor lockup. |
Use Scenario: Secures radar SoC power domain against coupled transients from adjacent high-current motor drivers. IC Role / Device Role / Timing Role: Primary clamping device on 24V supply rail feeding RF front-end and DSP. Use Value: 100A IFSM rating handles repetitive 8.3ms surges from nearby solenoid switching without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A-Q | Same electrical specs; differs only in packaging notation (no "-13-F" suffix) | Identical automotive qualification and performance; same SMB tape-and-reel format | Select when sourcing from alternate Diodes distribution channels with legacy part numbering |
| SMCJ64A-Q | Higher 1500W PPK, larger SMC package (DO-214AB), 1.2g weight | Better suited for higher-energy transients (e.g., heavy-duty truck 24V systems); requires larger PCB footprint | Choose when surge energy exceeds 600W margin or thermal dissipation demands larger case size |
Compared with SMBJ64AQ-13-F, SMBJ64A-Q offers identical protection in identical form factor, while SMCJ64A-Q trades compactness for higher surge capacity-making the SMBJ variant optimal for space-constrained automotive ECUs where 600W headroom suffices.
Availability
SMBJ64AQ-13-F is available at Aetrix Electronics and suitable for automotive body electronics, infotainment power conditioning, and ADAS sensor interface protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for SMBJ64AQ-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 consumer markets, with design centers across Asia, Europe, and the US.
This device belongs to Diodes' AEC-Q101-qualified SMBJ automotive TVS family, engineered specifically for ISO7637-2 and ISO10605 compliance in 12V/24V vehicle subsystems requiring zero-failure reliability.
FAQ
What is the polarity configuration of SMBJ64AQ-13-F?
SMBJ64AQ-13-F is a unidirectional TVS diode with cathode band marking on the SMB package. The banded end connects to ground; the opposite end connects to the protected line. It conducts only during negative transients relative to ground, making it suitable for DC power rail protection where reverse polarity is not expected.
Does SMBJ64AQ-13-F meet ISO7637-2 Pulse 3b requirements?
Yes. SMBJ64AQ-13-F clamps to ≤103V at 5.8A, well below the +150V amplitude of ISO7637-2 Pulse 3b (50Ω source impedance). Its 600W rating and fast response ensure effective suppression of this fast-rising, low-energy transient commonly induced by switch-mode noise in vehicle harnesses.
Can SMBJ64AQ-13-F be used in parallel for higher surge handling?
No. Parallel connection of TVS diodes is not recommended due to mismatched VBR tolerances (±8.7% for SMBJ64AQ), which causes uneven current sharing and potential single-device failure. For higher surge capacity, select the SMCJ64A-Q (1500W) or SMAJ64A-Q (400W) in appropriate package size instead.
What is the thermal resistance junction-to-lead (RθJL) for SMBJ64AQ-13-F?
The SMBJ64AQ-13-F has a typical RθJL of 10°C/W, measured from junction to lead at TL = +75°C. This value enables 5.0W steady-state power dissipation when leads are maintained at 75°C, supporting reliable operation in thermally constrained automotive PCB layouts with minimal copper pour.
SMBJ64AQ-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):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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
SMBJ64AQ-13-F FAQ
1.How can I place an order for SMBJ64AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ64AQ-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 SMBJ64AQ-13-F reliable?
The price and inventory of SMBJ64AQ-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 SMBJ64AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ64AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ64AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ64AQ-13-F?
SMBJ64AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ64AQ-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 SMBJ64AQ-13-F?
For technical support, including SMBJ64AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ64AQ-13-F requirements.
6.How does Aetrix verify that SMBJ64AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ64AQ-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 SMBJ64AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ64AQ-13-F?
All SMBJ64AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ64AQ-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 SMBJ64AQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ64AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ64AQ-13-F Tags
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