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Diodes Incorporated SMBJ36CAQ-13-F
- Part No.:
- SMBJ36CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ36CAQ-13-F.pdf
- Description:
- TVS DIODE 36VWM 58.1VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:5,369
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Product details
Overview
SMBJ36CAQ-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, 36V reverse standoff voltage (VRWM), and clamping voltage of 58.1V at 10.3A peak pulse current. It protects CAN, LIN, and sensor interfaces in 12V/24V vehicle subsystems against ISO7637-2 Pulse 1/2a/3a/3b surges and ISO10605 ESD events.
For engineers reviewing the SMBJ36CAQ-13-F datasheet, SMBJ36CAQ-13-F pinout, SMBJ36CAQ-13-F application, or SMBJ36CAQ-13-F equivalent, this part supports AEC-Q101-compliant design-in for infotainment power rails, ADAS camera supply lines, body control module I/O protection, and gateway ECU signal conditioning where bidirectional surge immunity and low clamping ratio are critical.
Technical Context
This bi-directional TVS operates symmetrically across both polarities with identical clamping behavior in forward and reverse directions, enabling robust protection of AC-coupled or floating signal paths. Its 36V VRWM ensures compatibility with 24V nominal automotive systems while maintaining margin above battery transients.
The device uses silicon avalanche junction technology with precise breakdown control, delivering stable 40.0–44.2V breakdown voltage (VBR) at 1mA test current and <0.5µA reverse leakage at VRWM - essential for low-power always-on circuits like wake-up receivers and CAN standby nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains 10×1000µs surge waveforms without degradation in automotive load-dump scenarios |
| Reverse Standoff Voltage | 36V - blocks normal 24V system operation while triggering only during overvoltage events ≥40V |
| Clamping Voltage | 58.1V @ 10.3A - limits downstream IC voltage to safe level during ISO7637-2 Pulse 3b (+150V) |
| Breakdown Voltage | 40.0–44.2V @ 1mA - tight VBR tolerance ensures predictable turn-on timing across temperature |
| Leakage Current | <0.5µA @ 36V - negligible standby power loss in battery-sensitive modules |
| Operating Temp | −55°C to +175°C - qualified for under-hood placement including engine control units |
| AEC-Q101 Qualified | Yes - validated for automotive use with PPAP capability and IATF 16949 manufacturing |
Pinout & Package
Package: SMB surface-mount plastic package (UL 94V-0), 3.3–3.94mm width × 5.0–5.59mm length × 2.0–2.5mm height, 0.1g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connects to protected line side; forms symmetrical conduction path with Cathode |
| Cathode | Current exit point in forward bias | Connects to ground or return path; enables bidirectional clamping when paired with Anode |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of differential buses (e.g., CAN H/L) without polarity concerns |
| ISO10605 ESD rating | 30kV air/contact discharge compliance eliminates need for external ESD arrays on exposed connectors |
| ISO7637-2 Pulse 3b immunity | Withstands +150V transient for 100ms - meets stringent requirements for powertrain and chassis ECUs |
| Lead-free & halogen-free | RoHS 3 and "Green" compliant (Br+Cl <1500ppm, Sb <1000ppm) for global automotive supply chain acceptance |
Applications
| Infotainment Head Unit Power Input | ADAS Camera Module Supply Line |
|---|---|
Use Scenario: 12V input rail feeding display controller, audio amplifier, and USB-C PD interface exposed to battery transients during jump-start or alternator load dump. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and LDOs to prevent latch-up or burnout. Use Value: 58.1V clamping ensures downstream regulators remain within absolute maximum ratings during 120V ISO7637-2 Pulse 1 events. | Use Scenario: 5V/3.3V supply to CMOS image sensor and serializer IC in rear-view or surround-view camera, subject to cable-borne surges and ESD from connector mating. IC Role / Device Role / Timing Role: Low-capacitance (<100pF) bidirectional shunt protector on power and data lines to preserve signal integrity. Use Value: Sub-0.5µA leakage avoids quiescent current violation in always-on camera wake-up circuitry. |
| Body Control Module LIN Bus | Gateway ECU CAN FD Transceiver Interface |
Use Scenario: LIN physical layer (12V biased) connecting door modules, seat controls, and lighting nodes in harsh cabin environment with repeated ESD exposure. IC Role / Device Role / Timing Role: Bidirectional TVS tied between LIN bus and chassis ground to suppress contact discharge and coupled noise. Use Value: Symmetrical 36V standoff allows direct integration without polarity matching, reducing BOM count vs. unidirectional solutions. | Use Scenario: High-speed CAN FD data lines (CAN_H/CAN_L) interfacing with microcontroller in vehicle gateway, requiring surge immunity without signal distortion. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to ground, leveraging bi-directional response for common-mode transients. Use Value: 600W rating handles repetitive 10×1000µs pulses per ISO7637-2 Pulse 3a/3b without derating or thermal runaway. |
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 |
|---|---|---|---|
| SMBJ36CA-13-F | Same electrical specs but not AEC-Q101 qualified; RoHS-compliant but lacks PPAP documentation | Restricted to non-automotive industrial or consumer designs where qualification traceability is not required | Select only if automotive change control, IATF 16949 sourcing, or PPAP submission is unnecessary |
| SMCJ36CA-Q | Higher 1500W peak power, larger SMC package (7.11×6.22mm), same 36V VRWM and 58.1V VC | Used where higher surge margin is needed (e.g., alternator output lines), but requires PCB area increase and thermal redesign | Choose when system-level testing reveals 600W insufficient, and board space permits SMC footprint |
Compared with SMBJ36CA-13-F, the -AQ variant adds full automotive qualification and supply-chain traceability; versus SMCJ36CA-Q, it trades surge headroom for compact SMB layout and lower thermal mass - optimal for space-constrained ECU signal layers.
Availability
SMBJ36CAQ-13-F is available at Aetrix Electronics and suitable for automotive infotainment power protection, ADAS camera supply conditioning, body control module LIN bus hardening, and gateway ECU CAN FD interface safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMBJ36CAQ-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 with over 50 years of power management expertise.
The SMBJ-AQ series belongs to Diodes' AEC-Q101-qualified transient suppression portfolio, engineered specifically for automotive subsystems demanding certified surge immunity, zero-defect reliability, and full change-control documentation.
FAQ
What does the 'C' suffix in SMBJ36CAQ-13-F indicate?
The 'C' denotes bi-directional configuration: the device clamps symmetrically for both positive and negative transients, making it suitable for protecting AC-coupled or floating signal lines like CAN, LIN, or sensor outputs without polarity constraints. This differs from uni-directional variants (e.g., SMBJ36AQ-13-F) that only protect against reverse-polarity surges.
How does SMBJ36CAQ-13-F meet ISO7637-2 Pulse 3b requirements?
It clamps to 58.1V at 10.3A under the 10×1000µs waveform, limiting voltage seen by downstream ICs to well below their 60–65V absolute maximum ratings during the +150V, 100ms Pulse 3b event. Its 600W rating and −55°C to +175°C operating range ensure consistent performance across full automotive temperature extremes.
Is SMBJ36CAQ-13-F compatible with lead-free reflow soldering processes?
Yes - it features matte tin-plated terminals compliant with MIL-STD-202, Method 208, and supports standard Pb-free reflow profiles up to 260°C peak temperature. The SMB package's moisture sensitivity level 1 eliminates bake requirements prior to assembly, streamlining high-volume automotive PCB manufacturing.
Can SMBJ36CAQ-13-F replace SMBJ36A-13-F in an existing design?
Electrically yes - identical VRWM, VBR, VC, and IPP specs - but the -AQ suffix adds AEC-Q101 qualification, PPAP documentation, and IATF 16949 traceability. Replacement requires validation of automotive change control processes and may necessitate updated qualification records for safety-critical applications.
SMBJ36CAQ-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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
SMBJ36CAQ-13-F FAQ
1.How can I place an order for SMBJ36CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ36CAQ-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 SMBJ36CAQ-13-F reliable?
The price and inventory of SMBJ36CAQ-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 SMBJ36CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ36CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ36CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ36CAQ-13-F?
SMBJ36CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ36CAQ-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 SMBJ36CAQ-13-F?
For technical support, including SMBJ36CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ36CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ36CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ36CAQ-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 SMBJ36CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ36CAQ-13-F?
All SMBJ36CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ36CAQ-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 SMBJ36CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ36CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ36CAQ-13-F Tags
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Diodes Incorporated
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Diodes Incorporated
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