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Diodes Incorporated SMBJ24CAQ-13-F
- Part No.:
- SMBJ24CAQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ24CAQ-13-F.pdf
- Description:
- TVS DIODE 24VWM 38.9VC SMB
- Quantity:
- Payment:
- Shipping:
Inventory:35,092
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Product details
Overview
SMBJ24CAQ-13-F from Diodes Incorporated is a bi-directional 600W automotive transient voltage suppressor (TVS) diode in SMB package, with 24V reverse standoff voltage (VRWM), 26.7V minimum breakdown voltage (VBR), and 38.9V maximum clamping voltage (VC) at 15.4A peak pulse current - designed to protect CAN, LIN, and power-line interfaces in vehicle ECUs against ISO7637-2 Pulse 1/2a/3a/3b surges and ISO10605 ESD events.
For engineers reviewing the SMBJ24CAQ-13-F datasheet, SMBJ24CAQ-13-F pinout, SMBJ24CAQ-13-F application, or SMBJ24CAQ-13-F equivalent, this device is selected for AEC-Q101-compliant surge protection where precise clamping performance, low leakage (<0.5µA @ VRWM), and IATF 16949-manufactured traceability are required in 12V/24V automotive subsystems.
Technical Context
This bi-directional TVS operates symmetrically across both polarities, enabling robust protection of differential or AC-coupled signal lines without polarity constraints. Its 10×1000µs waveform-rated clamping (VC = 38.9V @ IPP = 15.4A) ensures predictable voltage limiting during fast transients like load dump or inductive switching.
Thermally rated for -55°C to +175°C junction operation and derated linearly above +25°C (4.8W/°C), it sustains 5W steady-state dissipation at TL = +75°C - supporting placement near high-temperature engine bay components while maintaining compliance with ISO16750-4 thermal cycling requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - withstands ISO7637-2 Pulse 1 (-150V) and Pulse 3a (-220V) without failure |
| Reverse Standoff Voltage | 24V - blocks normal 24V system operating voltage while remaining fully inactive |
| Clamping Voltage | 38.9V @ 15.4A - limits transient overvoltage to safe levels for downstream 40V-rated ICs |
| Breakdown Voltage | 26.7–29.5V - ensures reliable turn-on before damage threshold of protected circuitry |
| Leakage Current | <0.5µA @ 24V - negligible standby power loss and no interference with low-current sensor signals |
| Operating Temperature | -55°C to +175°C - qualified for under-hood and transmission control module environments |
Pinout & Package
Package: SMB (Surface-Mount Small Outline), molded plastic body per UL 94V-0, 0.1g mass, moisture sensitivity level 1 (J-STD-020). Cathode band omitted - bi-directional symmetry confirmed by "C" suffix and absence of polarity marking per datasheet Figure 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bi-directional surge path | Both terminals function identically - connects across protected line pair (e.g., CAN_H/CAN_L) or supply rail-to-ground |
| Case / Body | Thermal conduction path | Exposed copper pad on PCB bottom enables direct heat transfer to internal ground plane for sustained 5W dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per stress test plan |
| ISO10605 ESD rating | 30kV air/contact discharge - exceeds automotive infotainment and ADAS interface immunity requirements |
| Lead-free & halogen-free | RoHS 3 compliant (2015/863/EU); <900ppm Br+Cl, <1000ppm Sb - meets OEM green material mandates |
| IATF 16949 manufacturing | Full PPAP documentation support available - traceable lot control for Tier 1 production programs |
Applications
| Automotive CAN Bus Protection | Body Control Module Power Input |
|---|---|
Use Scenario: Bidirectional transient suppression on CAN_H/CAN_L differential pair in gateway or domain controller. IC Role / Device Role / Timing Role: Passive clamping element placed directly at connector entry point to limit bus voltage excursions during load dump or ESD. Use Value: Maintains CAN physical layer integrity by clamping to ≤38.9V - below ISO11898-2 receiver damage threshold and ensuring bit error rate stability. | Use Scenario: 24V battery rail protection upstream of DC-DC converter in BCM housing. IC Role / Device Role / Timing Role: Primary surge shunt for ISO7637-2 Pulse 1 (-150V) and Pulse 3b (+150V) events on main power input. Use Value: Prevents latch-up or burnout of upstream PMICs by clamping transients within 1ns response time and sustaining 600W peak without degradation. |
| ADAS Camera Power Line | Electric Power Steering Sensor Interface |
Use Scenario: Protection of 12V camera module power input exposed to engine bay EMI and alternator ripple. IC Role / Device Role / Timing Role: Low-leakage (0.5µA) TVS placed between fuse output and camera DC-DC input capacitor. Use Value: Eliminates false resets caused by sub-100ns spikes while adding no measurable quiescent load - critical for always-on vision systems. | Use Scenario: Signal-level protection on analog torque sensor outputs routed through steering column harness. IC Role / Device Role / Timing Role: Bi-directional clamp across differential analog pair (e.g., ratiometric 0–5V) to suppress coupled transients. Use Value: Preserves sensor accuracy by limiting common-mode overvoltage to <38.9V - avoiding ADC saturation and torque calculation errors. |
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 |
|---|---|---|---|
| SMBJ24CA TR13 | Same electrical specs; non-AEC-Q101, manufactured in ISO9001-only facility | Lacks PPAP support and IATF 16949 traceability - unsuitable for Tier 1 production | Select only for prototyping or non-automotive industrial use |
| TPSMBS24C-Q | Identical VRWM/VC/IPP; tighter VBR tolerance (±5% vs ±10%), higher TJ max (+185°C) | Optimized for extended-temperature ADAS modules requiring >175°C margin | Preferred when operating ambient exceeds 150°C or tighter clamping consistency is mandated |
Compared with SMBJ24CAQ-13-F, SMBJ24CA TR13 lacks automotive change control and lifecycle assurance, while TPSMBS24C-Q adds thermal headroom and tighter parametric control - making the Q-suffix part the balanced choice for volume production with full OEM compliance.
Availability
SMBJ24CAQ-13-F is available at Aetrix Electronics and suitable for automotive electronic control units, ADAS camera modules, and body electronics requiring stable component supply with full AEC-Q101 documentation and IATF 16949 traceability.
Supply support for SMBJ24CAQ-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 for automotive, industrial, and computing markets - with design centers in Asia, Europe, and North America.
The SMBJ(AQ) series is engineered specifically for automotive-grade transient suppression, combining AEC-Q101 reliability, ISO7637/ISO10605 compliance, and high-power clamping in compact surface-mount packages.
FAQ
What does the "Q" suffix signify in SMBJ24CAQ-13-F?
The "Q" suffix denotes full AEC-Q101 qualification, IATF 16949-certified manufacturing, and PPAP capability - confirming compliance with automotive quality and change control requirements, including stress testing for temperature cycling, mechanical shock, and humidity bias.
Can SMBJ24CAQ-13-F be used in unidirectional configurations?
No - the "C" in SMBJ24CAQ indicates bi-directional construction, with symmetrical clamping behavior across both polarities. For unidirectional use, select the non-C variant (e.g., SMBJ24AQ-13-F), which includes a cathode band and asymmetric forward/reverse characteristics.
How does SMBJ24CAQ-13-F handle repetitive surges?
It is rated for non-repetitive pulses only (max 4 pulses/minute per datasheet Note 7). For repetitive transients, thermal derating must be applied using the 4.8W/°C curve, and average power must stay below 5W at lead temperature ≤+75°C - requiring careful PCB copper area design and airflow analysis.
Is the SMB package of SMBJ24CAQ-13-F compatible with standard reflow profiles?
Yes - its moisture sensitivity level 1 (J-STD-020) allows floor life unlimited at ≤30°C/60% RH, and it supports standard lead-free reflow profiles (peak 260°C, 20–40 sec above 217°C) without preconditioning, per Diodes' packaging specification AN-3001.
SMBJ24CAQ-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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 15.4A
- 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
SMBJ24CAQ-13-F FAQ
1.How can I place an order for SMBJ24CAQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ24CAQ-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 SMBJ24CAQ-13-F reliable?
The price and inventory of SMBJ24CAQ-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 SMBJ24CAQ-13-F is usually 5 days.
3.What payment methods are accepted for SMBJ24CAQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ24CAQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ24CAQ-13-F?
SMBJ24CAQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ24CAQ-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 SMBJ24CAQ-13-F?
For technical support, including SMBJ24CAQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ24CAQ-13-F requirements.
6.How does Aetrix verify that SMBJ24CAQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMBJ24CAQ-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 SMBJ24CAQ-13-F meets industry standards.
7.What is the process for return or replacement of SMBJ24CAQ-13-F?
All SMBJ24CAQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ24CAQ-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 SMBJ24CAQ-13-F part is unused and in its original packaging.
Return procedure for SMBJ24CAQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ24CAQ-13-F Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Diodes Incorporated
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