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Diodes Incorporated SMBJ11CAQ-13-F
- Part No.:
- SMBJ11CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ11CAQ-13-F.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:3,992
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Product details
Overview
SMBJ11CAQ-13-F from Diodes Incorporated is a bi-directional 600W automotive transient voltage suppressor (TVS) diode designed for ISO7637-2 and ISO10605 surge/ESD protection in vehicle power-line and signal-line circuits. It features 11V reverse standoff voltage (VRWM), 12.2V minimum breakdown voltage (VBR), 18.2V max clamping voltage (VC) at 33A peak pulse current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the SMBJ11CAQ-13-F datasheet, SMBJ11CAQ-13-F pinout, SMBJ11CAQ-13-F application, or SMBJ11CAQ-13-F equivalent, this device is selected for robust bidirectional clamping in 12V automotive systems requiring compliance with Pulse 1 (−150V), Pulse 2a (+112V), Pulse 3a (−220V), and Pulse 3b (+150V) transients per ISO7637-2.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, enabling protection of AC-coupled or floating signal lines without polarity constraints. Its 18.2V clamping voltage at 33A ensures downstream ICs see limited overvoltage during 10/1000μs transients, while its 600W peak pulse power rating sustains energy absorption per ISO7637-2 Pulse 3a.
The device is rated for −55°C to +175°C junction temperature and exhibits ≤0.5μA max reverse leakage at VRWM - critical for low-power always-on automotive modules. Its SMB package supports automated SMT assembly and meets IATF 16949 manufacturing controls with PPAP capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - withstands ISO7637-2 Pulse 3a (−220V, 50Ω, 10/1000μs) without failure |
| Reverse Standoff Voltage | 11V - blocks normal 12V system operation while triggering above transient thresholds |
| Clamping Voltage | 18.2V @ 33A - limits voltage seen by protected ICs during worst-case 10/1000μs surge |
| Breakdown Voltage | 12.2V min @ 1mA - ensures reliable turn-on before damage to downstream components |
| Leakage Current | ≤0.5μA @ 11V - preserves battery life in always-on automotive modules |
| Operating Temp Range | −55°C to +175°C - qualified for engine bay and transmission control unit environments |
| AEC-Q101 Qualified | Yes - validated for automotive use with change control, PPAP, and IATF 16949 traceability |
Pinout & Package
Package: SMB (Surface-Mount Small Outline), molded plastic, UL 94V-0 rated, 0.1g weight, moisture sensitivity level 1. Terminals feature matte tin plating, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional clamping terminals | No polarity marking; identical electrical behavior in both directions - simplifies PCB layout for floating or AC signals |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse power | Enables single-device protection against ISO7637-2 Pulse 1, 2a, 3a, and 3b without derating or parallel devices |
| Bi-directional architecture | Eliminates need for polarity-aware placement - reduces assembly errors and supports differential bus protection (e.g., LIN, CAN FD stubs) |
| AEC-Q101 qualification | Validated reliability for automotive safety-critical subsystems including body control modules and ADAS sensor interfaces |
| Halogen- and antimony-free "Green" construction | Meets automotive OEM environmental requirements (<900ppm Br, <900ppm Cl, <1000ppm Sb) without compromising surge performance |
Applications
| Body Control Module (BCM) Power Input | Infotainment Display Interface |
|---|---|
Use Scenario: Protecting 12V supply rail of BCM against load dump and alternator transients. IC Role / Device Role / Timing Role: Bi-directional TVS clamps negative pulses (Pulse 1, −150V) and positive surges (Pulse 2a, +112V) on main VBAT line. Use Value: Prevents latch-up or destruction of PMICs and microcontrollers during cold-crank and jump-start events. |
Use Scenario: ESD protection on LVDS or FPD-Link III video data lines between head unit and display. IC Role / Device Role / Timing Role: Low-capacitance bi-directional clamping absorbs ±30kV contact discharge (ISO10605) without signal distortion. Use Value: Maintains pixel integrity and eliminates display flicker or reset during service technician handling. |
| Engine Control Unit (ECU) Sensor Inputs | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Shielding analog sensor inputs (e.g., MAP, TPS) from coupled ignition noise and relay switching spikes. IC Role / Device Role / Timing Role: Fast-response TVS shunts sub-100ns transients before op-amp input stages saturate. Use Value: Preserves ADC accuracy and prevents false fault codes during high-dV/dt engine operation. |
Use Scenario: Suppressing inductive kickback from H-bridge motor windings during PWM commutation. IC Role / Device Role / Timing Role: Absorbs repetitive 600W pulses at motor driver output nodes during active braking. Use Value: Extends MOSFET lifetime and avoids gate oxide stress-induced failure in 48V EPS systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bi-directional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Same electrical specs but non-automotive grade; lacks AEC-Q101 qualification and PPAP support | Not suitable for production automotive ECUs; acceptable for prototyping or industrial test equipment | Select only if automotive qualification is not required and cost is primary constraint |
| SMCJ11CAQ-13-F | Same AEC-Q101 qualification but SMC package (higher 1500W PPK); larger footprint and thermal mass | Better for high-energy transients (e.g., 24V commercial vehicle load dump); over-specified for 12V passenger car use | Choose when system-level testing reveals insufficient margin with SMBJ-level clamping energy |
Compared with SMBJ11CA (non-automotive) and SMCJ11CAQ-13-F (higher-power SMC), SMBJ11CAQ-13-F delivers optimal balance of AEC-Q101 compliance, 600W surge capacity, and SMB footprint - making it the default choice for volume 12V automotive electronics where space and qualification are co-constrained.
Availability
SMBJ11CAQ-13-F is available at Aetrix Electronics and suitable for body control modules, infotainment displays, and engine control units requiring stable component supply with full automotive traceability and lifecycle management.
Supply support for SMBJ11CAQ-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 manufacturer specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and consumer markets, with design centers across Asia, Europe, and the US.
The SMBJ(AQ) series is part of Diodes' AEC-Q101-qualified automotive protection portfolio, engineered specifically for ISO7637-2 and ISO10605 compliance in harsh-temperature vehicle subsystems.
FAQ
What does the 'C' suffix in SMBJ11CAQ-13-F indicate?
The 'C' denotes bi-directional configuration - meaning the device provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This differs from uni-directional variants (e.g., SMBJ11AQ-13-F) that require correct anode/cathode orientation and only clamp one polarity.
Is SMBJ11CAQ-13-F suitable for protecting CAN bus lines?
Yes - its low clamping voltage (18.2V) and bi-directional response make it appropriate for CAN FD or classical CAN physical layer protection against ESD and fast transients. However, for high-speed signal integrity, verify total capacitance (typically <100pF at 0V bias) does not exceed bus timing budget.
How does SMBJ11CAQ-13-F differ from standard SMBJ11CA?
SMBJ11CAQ-13-F adds automotive-specific qualifications: AEC-Q101 stress testing, PPAP documentation readiness, and manufacturing in IATF 16949-certified facilities. The 'Q' suffix explicitly identifies the automotive-grade version - essential for Tier 1 supplier BOMs and OEM audits.
What is the maximum allowable ambient temperature for continuous operation?
At TA = +25°C, steady-state power dissipation is 5.0W. Derating begins above +25°C at 4.8W/°C, reaching zero dissipation at +135°C ambient. For reliable long-term operation, keep ambient below +105°C with adequate PCB copper area for heat spreading.
SMBJ11CAQ-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 33A
- 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
SMBJ11CAQ-13-F FAQ
1.How can I place an order for SMBJ11CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ11CAQ-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 SMBJ11CAQ-13-F reliable?
The price and inventory of SMBJ11CAQ-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 SMBJ11CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ11CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ11CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ11CAQ-13-F?
SMBJ11CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ11CAQ-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 SMBJ11CAQ-13-F?
For technical support, including SMBJ11CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ11CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ11CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ11CAQ-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 SMBJ11CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ11CAQ-13-F?
All SMBJ11CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ11CAQ-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 SMBJ11CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ11CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ11CAQ-13-F Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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