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Diodes Incorporated SMBJ7.5CAQ-13-F
- Part No.:
- SMBJ7.5CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ7.5CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:6,391
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Product details
Overview
SMBJ7.5CAQ-13-F from Diodes Incorporated is a bi-directional automotive-grade transient voltage suppressor (TVS) diode in SMB package, rated for 600W peak pulse power, 7.5V reverse standoff voltage (VRWM), and 12.9V clamping voltage (VC) at 46.5A peak pulse current (IPP). It protects CAN bus, LIN, and body control modules against ISO7637-2 Pulse 1/2a/3a/3b transients and ISO10605 ESD events up to ±30kV.
For engineers reviewing the SMBJ7.5CAQ-13-F datasheet, SMBJ7.5CAQ-13-F pinout, SMBJ7.5CAQ-13-F application, or SMBJ7.5CAQ-13-F equivalent, key selection criteria include clamping performance under 10×1000μs surge, AEC-Q101 qualification status, bi-directional symmetry for AC-coupled signal lines, and IATF 16949 manufacturing traceability.
Technical Context
This bi-directional TVS operates symmetrically across both polarities with matched breakdown voltages (8.33–9.21V) and identical clamping behavior (12.9V max @ 46.5A), enabling protection of differential buses like CAN FD without polarity biasing. Its 1.0mA test current ensures stable VBR measurement under low-leakage conditions.
Designed for automotive environments, it sustains operation from –55°C to +175°C junction temperature and meets ISO10605 (150pF/330Ω) and ISO7637-2 Pulse 3b (+150V) requirements - critical for infotainment head units and ADAS sensor interfaces exposed to load dump and ESD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - handles ISO7637-2 Pulse 1 (–150V) without failure in 12V automotive systems |
| Reverse Standoff Voltage | 7.5V - sets minimum operating margin above 5V logic rails while avoiding false triggering |
| Clamping Voltage | 12.9V @ 46.5A - limits downstream IC stress during 10×1000μs surge per REA standard |
| Breakdown Voltage | 8.33–9.21V @ 1.0mA - guarantees consistent turn-on threshold across production lots |
| Leakage Current | 100µA @ 7.5V - ensures negligible standby power loss in always-on vehicle networks |
| Operating Temperature | –55°C to +175°C - supports under-hood placement near engine control units |
Pinout & Package
Package: SMB surface-mount plastic package (UL 94V-0), 3.30–3.94mm width, 5.00–5.59mm length, 2.00–2.50mm height; moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode Band Absent) | Bi-directional terminal | No polarity marking - symmetrical conduction enables placement on AC-coupled differential pairs without orientation check |
| Cathode (Cathode Band Absent) | Bi-directional terminal | Identical to Anode - eliminates risk of reverse installation in automated SMT assembly |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with HTOL, TC, UHAST, and ESD testing per stress test plan |
| IATF 16949 certified manufacturing | Ensures PPAP documentation availability and full process traceability for Tier-1 OEM programs |
| Bi-directional symmetry | Matched VBR and VC in both directions supports CAN/LIN bus protection without DC bias circuitry |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and "Green" definition (<900ppm Br+Cl, <1000ppm Sb) |
Applications
| Automotive CAN FD Interface | Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Protection of high-speed CAN FD transceivers (e.g., TCAN1042) against coupled transients from adjacent 12V power lines. IC Role / Device Role / Timing Role: Bi-directional TVS placed between CANH/CANL and ground, clamping common-mode surges before they reach transceiver ESD structures. Use Value: 12.9V clamping ensures transceiver I/O remains below absolute maximum rating (typically 16V) during ISO7637-2 Pulse 3b (+150V). | Use Scenario: Surge suppression on 12V supply rail feeding microcontroller, EEPROM, and relay drivers in door module electronics. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main input, absorbing load dump energy before upstream LDO or DC-DC converter. Use Value: 600W peak power rating withstands 100ms duration ISO7637-2 Pulse 2a (+112V) without thermal runaway. |
| Infotainment Head Unit USB Port | ADAS Camera Power Line |
Use Scenario: ESD protection for USB 2.0 data lines (D+/D–) connected to vehicle infotainment system. IC Role / Device Role / Timing Role: Bi-directional TVS array element providing sub-nanosecond response to ±30kV contact discharge per ISO10605. Use Value: 100µA leakage at 7.5V prevents signal integrity degradation on 480Mbps high-speed data paths. | Use Scenario: Transient suppression on 5V power line supplying 1.2MP image sensor and MIPI CSI-2 serializer in rear-view camera. IC Role / Device Role / Timing Role: Secondary clamp after front-end filter, limiting residual overshoot to safe levels for low-voltage analog sensor circuits. Use Value: –55°C to +175°C operating range maintains protection integrity during engine-off hot soak and cold cranking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5CA | Same electrical specs but lacks AEC-Q101 qualification and IATF 16949 manufacturing evidence | Not approved for automotive production; limited to industrial or consumer prototypes | Select only if AEC-Q101 compliance is not required and cost is primary driver |
| TPSM8-7.5 | Higher 800W peak power, 12.5V clamping at 64A, but larger SMC package (7.11 × 6.22 mm) | Requires PCB redesign due to footprint mismatch; better suited for higher-energy load dump scenarios | Choose when surge energy exceeds 600W capability and board space allows SMC placement |
Compared with SMBJ7.5CA and TPSM8-7.5, SMBJ7.5CAQ-13-F uniquely delivers AEC-Q101 validation, SMB footprint compatibility, and verified ISO7637-2 Pulse 3a/3b performance - making it the optimal choice for volume automotive ECUs where qualification, size, and standard compliance are jointly constrained.
Availability
SMBJ7.5CAQ-13-F is available at Aetrix Electronics and suitable for automotive electronic control units, infotainment systems, and ADAS camera modules requiring stable component supply across multi-year vehicle production cycles.
Supply support for SMBJ7.5CAQ-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 SMBJ(AQ) series is engineered specifically for automotive transient suppression, combining AEC-Q101 qualification, IATF 16949 manufacturing, and ISO7637/ISO10605 compliance in compact SMB packages.
FAQ
What does the "AQ" suffix signify in SMBJ7.5CAQ-13-F?
The "AQ" suffix denotes AEC-Q101 qualification and IATF 16949-certified manufacturing. It confirms that the device has passed accelerated stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - all required for automotive production use.
Is SMBJ7.5CAQ-13-F unidirectional or bidirectional?
SMBJ7.5CAQ-13-F is bi-directional, indicated by the "C" in the part number. It provides symmetrical clamping for both positive and negative transients, with identical breakdown (8.33–9.21V) and clamping (12.9V) characteristics in either polarity - essential for protecting differential buses like CAN and LIN.
How does SMBJ7.5CAQ-13-F differ from standard SMBJ7.5CA?
SMBJ7.5CAQ-13-F adds AEC-Q101 qualification, PPAP capability, and IATF 16949 manufacturing documentation versus SMBJ7.5CA. Electrically identical, the AQ version provides auditable automotive-grade change control, lot traceability, and reliability data required by Tier-1 suppliers - whereas the CA version lacks formal automotive certification.
Can SMBJ7.5CAQ-13-F be used in non-automotive applications?
Yes - its 600W surge rating, 7.5V standoff, and bi-directional operation make it suitable for industrial HMI panels, PoE-powered devices, and telecom line cards. However, its AEC-Q101 qualification and automotive-focused testing (e.g., ISO7637-2 Pulse 3a) provide extra margin beyond generic TVS requirements in harsh environments.
SMBJ7.5CAQ-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 46.5A
- 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
SMBJ7.5CAQ-13-F FAQ
1.How can I place an order for SMBJ7.5CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ7.5CAQ-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 SMBJ7.5CAQ-13-F reliable?
The price and inventory of SMBJ7.5CAQ-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 SMBJ7.5CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ7.5CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ7.5CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ7.5CAQ-13-F?
SMBJ7.5CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ7.5CAQ-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 SMBJ7.5CAQ-13-F?
For technical support, including SMBJ7.5CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ7.5CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ7.5CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ7.5CAQ-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 SMBJ7.5CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ7.5CAQ-13-F?
All SMBJ7.5CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ7.5CAQ-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 SMBJ7.5CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ7.5CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ7.5CAQ-13-F Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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