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Diodes Incorporated SMBJ17CAQ-13-F
- Part No.:
- SMBJ17CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ17CAQ-13-F.pdf
- Description:
- TVS DIODE 17VWM 27.6VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:11,650
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Product details
Overview
SMBJ17CAQ-13-F from Diodes Incorporated is a bi-directional 600W automotive transient voltage suppressor (TVS) diode designed for ISO7637-2 and ISO10605 compliance in power line and signal line protection. It features a 17V reverse standoff voltage (VRWM), 27.6V max clamping voltage at 21.7A peak pulse current, and AEC-Q101 qualification for under-hood engine control units and body electronics.
For engineers reviewing the SMBJ17CAQ-13-F datasheet, SMBJ17CAQ-13-F pinout, SMBJ17CAQ-13-F application, or SMBJ17CAQ-13-F equivalent, key selection criteria include clamping performance under ISO7637-2 Pulse 1/2a/3a/3b waveforms, bi-directional surge handling capability, and IATF 16949-certified manufacturing traceability.
Technical Context
This bi-directional TVS operates symmetrically across both polarities to clamp transients on unidirectional or AC-coupled automotive data lines and power rails. Its 17V VRWM ensures compatibility with 12V nominal systems while maintaining margin above battery float voltage (≈14.4V).
The device delivers 600W peak pulse power per 10×1000μs waveform per IEC 61000-4-5, with thermal derating to 4.8W/°C above +25°C ambient and full operation from −55°C to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - Clamps 10×1000μs surges without failure in automotive load dump or inductive switching events |
| Reverse Standoff Voltage (VRWM) | 17.0V - Blocks normal 12V system operation while triggering only during overvoltage transients |
| Max Clamping Voltage (VC) | 27.6V @ IPP = 21.7A - Limits downstream IC voltage stress below 28V during ISO7637-2 Pulse 3a (−220V) |
| Breakdown Voltage (VBR) | 18.9–20.9V @ IT = 1.0mA - Ensures reliable turn-on with controlled voltage margin above VRWM |
| Leakage Current (IR) | ≤0.5µA @ VRWM - Minimizes quiescent power loss in always-on vehicle modules |
| Operating Temperature | −55°C to +175°C - Supports placement near engines, transmissions, and power inverters |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, molded plastic with UL 94V-0 rating, 0.1g mass, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Marked Band) | Not applicable | Bi-directional construction eliminates polarity marking; terminals are symmetrical and interchangeable |
| Anode | Not applicable | No anode/cathode distinction - both terminals function identically for bidirectional clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and IATF 16949 certified production |
| ISO10605 ESD robustness | 30kV air/contact discharge immunity - protects CAN/LIN/FlexRay interfaces from human-body-model events |
| ISO7637-2 transient suppression | Clamps Pulse 1 (−150V), Pulse 2a (+112V), Pulse 3a (−220V), Pulse 3b (+150V) waveforms |
| Lead-free & green construction | RoHS 3 compliant, halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Engine Control Unit (ECU) Power Input | CAN Bus Transceiver Protection |
|---|---|
|
Use Scenario: 12V battery feed to microcontroller power supply in gasoline/diesel ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bi-directional TVS clamping transient energy before LDO regulator input. Use Value: Prevents >27.6V stress on 3.3V/5V power management ICs during ISO7637-2 Pulse 1 (−150V) and Pulse 2a (+112V). |
Use Scenario: Differential pair protection on high-speed CAN FD transceivers in ADAS domain controllers. IC Role / Device Role / Timing Role: Symmetric clamping of ±27.6V transients on CANH/CANL lines without signal distortion. Use Value: Maintains CAN bit timing integrity by limiting differential voltage excursion to <55.2V during ISO10605 contact discharge. |
| Body Control Module (BCM) LIN Bus | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: LIN physical layer protection in door modules and seat controllers subjected to cable harness ESD events. IC Role / Device Role / Timing Role: Low-capacitance bi-directional clamp on single-wire LIN bus line. Use Value: Adds <1pF capacitance (per terminal) to preserve 19.2kbps LIN timing margins while surviving 30kV contact discharge. |
Use Scenario: DC-link voltage rail protection in 48V EPS motor drivers exposed to inductive kickback from H-bridge switching. IC Role / Device Role / Timing Role: Primary surge limiter on high-current power path upstream of gate drivers. Use Value: Absorbs 600W peak energy from MOSFET turn-off spikes, preventing overvoltage latch-up in 65V-rated driver ICs. |
Availability
SMBJ17CAQ-13-F is available at Aetrix Electronics and suitable for automotive power distribution, CAN/LIN bus protection, engine control unit hardening, and electric power steering systems requiring stable component supply with full AEC-Q101 traceability.
Supply support for SMBJ17CAQ-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 series is part of Diodes' AEC-Q101-qualified TVS portfolio engineered specifically for ISO7637-2 and ISO10605 compliance in harsh automotive environments.
FAQ
What does the "C" suffix in SMBJ17CAQ-13-F indicate?
The "C" denotes bi-directional configuration: both terminals behave identically, enabling symmetric clamping of positive and negative transients without polarity concerns. This differs from uni-directional variants (e.g., SMBJ17AQ-13-F) that require correct cathode orientation relative to circuit ground.
How does SMBJ17CAQ-13-F meet ISO7637-2 Pulse 3a requirements?
With a 27.6V clamping voltage at 21.7A, it limits induced voltage on protected lines to well below the 30V immunity threshold required for Pulse 3a (−220V, 50Ω source). Its 600W rating ensures single-event survivability without degradation when tested per ISO7637-2 Annex D.
Is SMBJ17CAQ-13-F compatible with lead-free reflow soldering?
Yes - it features matte tin plating compliant with J-STD-020 Level 1 moisture sensitivity and rated for standard Pb-free reflow profiles (peak 260°C). The SMB package's thermal mass and UL 94V-0 molding compound ensure reliability through multiple reflow cycles.
Can SMBJ17CAQ-13-F replace SMBJ17AQ-13-F in existing designs?
No - SMBJ17CAQ-13-F is bi-directional while SMBJ17AQ-13-F is uni-directional. Substitution requires verifying circuit topology: bi-directional parts may cause unintended conduction in DC-biased rails, and uni-directional parts lack negative-polarity clamping needed for ISO7637-2 Pulse 1 and 3a.
SMBJ17CAQ-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 21.7A
- 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
SMBJ17CAQ-13-F FAQ
1.How can I place an order for SMBJ17CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ17CAQ-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 SMBJ17CAQ-13-F reliable?
The price and inventory of SMBJ17CAQ-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 SMBJ17CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ17CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ17CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ17CAQ-13-F?
SMBJ17CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ17CAQ-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 SMBJ17CAQ-13-F?
For technical support, including SMBJ17CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ17CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ17CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ17CAQ-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 SMBJ17CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ17CAQ-13-F?
All SMBJ17CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ17CAQ-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 SMBJ17CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ17CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ17CAQ-13-F Tags
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