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Diodes Incorporated SMBJ17AQ-13-F
- Part No.:
- SMBJ17AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ17AQ-13-F.pdf
- Description:
- TVS DIODE 17VWM 27.6VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:5,752
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Product details
Overview
SMBJ17AQ-13-F from Diodes Incorporated is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for automotive circuit protection. It features a 17V reverse standoff voltage (VRWM), 27.6V maximum clamping voltage at 21.7A peak pulse current, and AEC-Q101 qualification for under-hood applications including engine control units and body electronics.
For engineers reviewing the SMBJ17AQ-13-F datasheet, SMBJ17AQ-13-F pinout, SMBJ17AQ-13-F application, or SMBJ17AQ-13-F equivalent, this part supports ISO7637-2 Pulse 1/2a/3a/3b surge immunity and ISO10605 ESD protection up to ±30kV - critical for automotive power line and signal line hardening.
Technical Context
This TVS diode operates as a unidirectional clamping device in parallel with sensitive loads, activating when transient voltage exceeds its 17V standoff threshold. Its 27.6V clamping voltage at 21.7A (10×1000μs waveform) limits downstream overvoltage during load dump or inductive switching events.
Rated for -55°C to +175°C junction temperature and packaged in SMB with IATF 16949-certified manufacturing, it delivers robust surge handling (100A IFSM, 8.3ms half-sine) while maintaining <0.5μA leakage at VRWM - enabling low-power system compatibility without standby current penalty.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single high-energy transients per ISO7637-2 Pulse 1 (-150V) without failure |
| Reverse Standoff Voltage (VRWM) | 17.0V - blocks normal 12V/24V automotive battery operation while triggering above nominal rail |
| Clamping Voltage (VC) | 27.6V @ IPP = 21.7A - limits protected circuit voltage to safe level during 10×1000μs surge |
| Breakdown Voltage (VBR) | 18.9–20.9V @ IT = 1.0mA - ensures reliable turn-on margin above VRWM for stable protection threshold |
| Leakage Current (IR) | <0.5μA @ VRWM - negligible standby power draw in always-on vehicle modules |
| Operating Temperature | -55°C to +175°C - validated for under-hood placement near engines and transmission controllers |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability with PPAP documentation support |
Pinout & Package
Package: SMB (Surface-Mount Small Outline) - molded plastic body, UL 94V-0 rated, 0.1g weight, moisture sensitivity level 1. Cathode band on top surface indicates polarity for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path | Connected to ground or low-impedance reference; completes clamping loop during overvoltage event |
| Cathode | Protected line connection | Connected to supply rail or signal line being safeguarded; voltage referenced to anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Automotive-grade surge rating | 600W peak pulse power compliant with ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ±30kV ESD |
| High-temperature operation | Junction range -55°C to +175°C enables direct mounting on engine control modules without derating |
| Low-leakage clamping | <0.5μA IR at 17V VRWM preserves battery life in always-on telematics and gateway ECUs |
| Lead-free & green construction | Matte tin plating, RoHS 3 compliant, halogen- and antimony-free per Diodes' "Green" definition |
| IATF 16949 manufacturing | Produced in certified facilities with full PPAP capability for Tier 1 automotive supply chain traceability |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 12V power input of microcontroller-based ECU against load dump surges during alternator regulation failure. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp transients before regulation stage. Use Value: 27.6V clamping voltage ensures downstream 3.3V/5V regulators remain within absolute maximum ratings during -150V ISO7637-2 Pulse 1 events. |
Use Scenario: Safeguarding LIN bus transceiver I/O pins from ESD events during door module assembly and field service. IC Role / Device Role / Timing Role: Parallel-connected TVS on LIN data line to shunt contact discharge energy before reaching transceiver ESD structure. Use Value: 30kV contact discharge rating per ISO10605 meets OEM requirements for Class B interior components without adding series impedance. |
| Advanced Driver Assistance Systems (ADAS) Camera | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: Shielding 5V camera sensor power rail from ignition-induced transients in front-end ADAS domain controller. IC Role / Device Role / Timing Role: Low-leakage TVS on regulated 5V supply output to prevent latch-up in CMOS image sensors during cranking pulses. Use Value: Sub-0.5μA leakage avoids droop on precision LDO outputs, maintaining sensor bias stability across temperature extremes. |
Use Scenario: Clamping H-bridge gate driver supply lines against inductive kickback from EPS motor windings during PWM commutation. IC Role / Device Role / Timing Role: TVS mounted at driver IC VDD pin to absorb 112V ISO7637-2 Pulse 2a transients induced by relay switching. Use Value: 100A IFSM rating handles repetitive 8.3ms surges without thermal runaway, supporting continuous EPS operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ17A-Q | Same electrical specs but non-tape-and-reel packaging (bulk or ammo pack); no -13-F suffix | Not optimized for automated SMT placement; requires manual or vibratory feeding | Select when prototyping or low-volume builds avoid reel logistics |
| SMCJ17A-Q | Higher 1500W peak power rating in larger SMC package; identical VRWM and VC | Requires 30% more PCB area; better suited for high-energy chassis-level protection | Choose for primary protection at battery junction box where space permits and energy levels exceed 600W |
Compared with SMBJ17AQ-13-F, SMBJ17A-Q trades tape-and-reel convenience for flexible packaging, while SMCJ17A-Q increases surge capacity at the cost of footprint - making the SMBJ17AQ-13-F optimal for space-constrained, high-volume ECU and BCM designs requiring verified AEC-Q101 compliance.
Availability
SMBJ17AQ-13-F is available at Aetrix Electronics and suitable for automotive electronic control units, body control modules, ADAS camera power rails, and electric power steering systems requiring stable component supply across extended temperature ranges and rigorous qualification standards.
Supply support for SMBJ17AQ-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 centers across Asia, Europe, and the U.S., serving automotive, industrial, and consumer markets.
This part belongs to Diodes' AEC-Q101-qualified SMBJ automotive TVS family, engineered specifically for ISO7637-2 and ISO10605 compliance in harsh-temperature vehicle subsystems - not general-purpose surge suppression.
FAQ
What is the maximum clamping voltage of SMBJ17AQ-13-F under standard test conditions?
The maximum clamping voltage (VC) is 27.6V at a peak pulse current (IPP) of 21.7A, measured using the standardized 10×1000μs waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range of -55°C to +175°C and defines the upper voltage limit imposed on protected circuits during surge events.
Is SMBJ17AQ-13-F suitable for bi-directional signal line protection?
No - SMBJ17AQ-13-F is a unidirectional TVS diode, indicated by the absence of "C" in its part number. It conducts only during reverse-biased overvoltage events and must be oriented with cathode toward the protected line. For bi-directional protection (e.g., CAN or LIN bus), the "C" variant SMBJ17CAQ-13-F is required.
How does the SMBJ17AQ-13-F meet automotive qualification requirements?
It is fully AEC-Q101 qualified, manufactured in IATF 16949-certified facilities, and PPAP-capable. Test validation includes high-temperature operating life (HTOL), temperature cycling, and surge testing per ISO7637-2 Pulse 1/2a/3a/3b and ISO10605 ESD protocols - all documented in Diodes' certified test reports.
What is the thermal resistance junction-to-ambient (RθJA) for SMBJ17AQ-13-F in standard PCB layout?
Diodes does not specify RθJA for SMBJ17AQ-13-F in the DS40740 datasheet. Thermal performance depends on PCB copper area and thickness; typical SMB-mounted devices achieve ~120°C/W with 1-inch² 2oz copper pad. For thermal design, use the steady-state power dissipation (PM(AV) = 5.0W at TL = +75°C) and derating curve in Figure 6.
SMBJ17AQ-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):
- 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
SMBJ17AQ-13-F FAQ
1.How can I place an order for SMBJ17AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ17AQ-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 SMBJ17AQ-13-F reliable?
The price and inventory of SMBJ17AQ-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 SMBJ17AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ17AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ17AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ17AQ-13-F?
SMBJ17AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ17AQ-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 SMBJ17AQ-13-F?
For technical support, including SMBJ17AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ17AQ-13-F requirements.
6.How does Aetrix verify that SMBJ17AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ17AQ-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 SMBJ17AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ17AQ-13-F?
All SMBJ17AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ17AQ-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 SMBJ17AQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ17AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ17AQ-13-F Tags
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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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Diodes Incorporated
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