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Diodes Incorporated 3.0SMCJ24AQ-13
- Part No.:
- 3.0SMCJ24AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ24AQ-13.pdf
- Description:
- TVS DIODE 24VWM 38.9VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,929
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Product details
Overview
3.0SMCJ24AQ-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) designed for automotive power-line surge protection. It features a 24V reverse standoff voltage (VRWM), 38.9V max clamping voltage (VC) at 77.1A peak pulse current, and AEC-Q101 qualification for under-hood engine control unit (ECU) input rail protection against ISO7637-2 Pulse 1 (−150V) and Pulse 3a (−220V) transients.
For engineers reviewing the 3.0SMCJ24AQ-13 datasheet, 3.0SMCJ24AQ-13 pinout, 3.0SMCJ24AQ-13 application, or 3.0SMCJ24AQ-13 equivalent, this device delivers verified clamping performance in SMC package for automotive 12V/24V system front-end protection where low leakage (<2µA @ VRWM), high IFSM (300A), and IATF16949-manufactured traceability are required.
Technical Context
This TVS diode operates as a unidirectional clamping device with avalanche breakdown behavior, triggered when line voltage exceeds 24V VRWM. Its 3000W peak pulse power rating is validated per 10×1000μs waveform (IEC 61000-4-5), and it sustains 300A non-repetitive forward surge current under 8.3ms half-sine conditions.
Thermal operation spans −55°C to +175°C junction temperature, enabling placement near high-temperature ECU components. The device exhibits <2µA reverse leakage at 24V and achieves full clamping within nanoseconds-critical for protecting CAN transceivers and microcontroller I/O pins from fast-rising load-dump spikes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - Handles ISO7637-2 Pulse 1 (−150V) and Pulse 3a (−220V) without failure |
| Reverse Standoff Voltage | 24V - Blocks normal 12V/24V automotive supply ripple while triggering above transient thresholds |
| Max Clamping Voltage | 38.9V @ 77.1A - Limits downstream IC voltage to safe level during 10×1000μs surge |
| Peak Forward Surge Current | 300A @ 8.3ms - Survives repetitive load-dump events in alternator-regulated systems |
| Reverse Leakage | <2µA @ 24V - Minimizes quiescent power loss in always-on vehicle modules |
| Operating Temperature | −55°C to +175°C - Supports direct mounting on engine-control PCBs without derating |
| AEC-Q101 Qualified | Yes - Validated for automotive use with PPAP documentation and IATF16949 manufacturing |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating and matte tin lead finish. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band (Marked End) | Anode Connection (for unidirectional operation) | Connects to protected line; polarity must match schematic symbol to enable forward-biased clamping path |
| Opposite End | Cathode Connection | Connects to ground or low-impedance return path; forms low-inductance clamp loop with minimal PCB trace length |
Key Features
| Feature | Design Value |
|---|---|
| 3000W Peak Pulse Power | Enables single-device protection of 12V/24V power rails against ISO7637-2 Pulse 1, 2a, 3a, and 3b waveforms |
| AEC-Q101 Qualification | Confirms reliability for automotive under-hood applications including engine management and ADAS sensor hubs |
| Low Clamping Ratio (VC/VRWM = 1.62) | Minimizes overvoltage stress on downstream 3.3V/5V logic while maintaining margin above nominal supply |
| Lead-Free & Halogen-Free | Complies with RoHS 3 (2015/863/EU) and automotive "Green" standards (<900ppm Br+Cl, <1000ppm Sb) |
| SMC Package Thermal Performance | 0.21g mass and 8mm² pad layout support >100W thermal dissipation in compact ECU layouts |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) LIN Bus Line |
|---|---|
|
Use Scenario: Protecting 24V supply rail of diesel engine ECU against load-dump transients up to −150V (ISO7637-2 Pulse 1). IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed directly at connector entry point before DC-DC converter input. Use Value: Limits transient voltage to ≤38.9V, preventing damage to 40V-rated input MOSFETs and ensuring uninterrupted MCU operation during cranking. |
Use Scenario: Safeguarding LIN transceiver VCC pin from battery feed surges during vehicle jump-start or alternator regulation faults. IC Role / Device Role / Timing Role: Low-leakage (≤2µA) clamping diode mounted adjacent to LIN PHY IC with <5mm trace length to ground plane. Use Value: Maintains LIN signal integrity by clamping sub-100ns spikes without injecting noise into 19.2kbps bus timing. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
|
Use Scenario: Shielding 12V camera module power input from ignition-switching induced transients in rear-view camera systems. IC Role / Device Role / Timing Role: Primary front-end TVS on fused 12V line, upstream of LDO regulator feeding image sensor and ISP. Use Value: Prevents latch-up in CMOS image sensors by limiting voltage excursion to 38.9V during 220V Pulse 3a events. |
Use Scenario: Protecting H-bridge gate driver IC supply from inductive kickback during EPS motor commutation. IC Role / Device Role / Timing Role: Fast-response (nanosecond) clamping device placed across motor driver VDD/GND with Kelvin ground connection. Use Value: Absorbs 300A surge energy without thermal runaway, preserving gate drive timing accuracy critical for torque control stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-13-F | Lower peak power (400W), same VRWM (24V), higher VC (43.0V @ 10.5A) | Suitable only for low-energy CAN/LIN lines-not rated for ISO7637-2 Pulse 1 or load-dump | Select when space-constrained and surge energy is limited to IEC 61000-4-2/4-4 levels |
| 1.5SMC24A | Same SMC package but lower PPK (1500W), higher VC (39.4V @ 38.1A), no AEC-Q101 qualification | Lacks automotive change control, PPAP, and IATF16949 traceability; not approved for safety-critical ECUs | Acceptable for non-safety automotive infotainment or aftermarket modules without OEM compliance requirements |
Compared with SMAJ24A-13-F and 1.5SMC24A, the 3.0SMCJ24AQ-13 uniquely combines 3000W surge capacity, AEC-Q101 validation, and 38.9V clamping-making it the only option qualified for front-end protection of ISO7637-2-compliant 24V power domains in production ECUs.
Availability
3.0SMCJ24AQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and electric power steering designs requiring stable component supply with full AEC-Q101 documentation and IATF16949 traceability.
Supply support for 3.0SMCJ24AQ-13 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 3.0SMCJ series is engineered specifically for automotive-grade transient suppression-delivering robust ISO7637-2 and ISO10605 compliance in thermally optimized SMC packages for under-hood and chassis-mounted electronics.
FAQ
Is 3.0SMCJ24AQ-13 unidirectional or bidirectional?
It is unidirectional, as indicated by the absence of "C" suffix (e.g., 3.0SMCJ24AQ vs. 3.0SMCJ24CAQ). The cathode band marks the anode terminal; it conducts only when the anode is more positive than the cathode, making it suitable for DC power rail protection with defined polarity.
What is the maximum operating temperature for continuous use?
The junction temperature range is −55°C to +175°C, and the device is rated for continuous operation across this full range when mounted on 8.00mm² copper pads per Diodes' recommended layout. Derating is not required below +175°C for steady-state conditions.
Does this part meet ISO10605 ESD requirements?
Yes-it is certified for 30kV air and contact discharge per ISO10605 (C = 150pF, R = 330Ω), as confirmed in the product summary and electrical characteristics table. This qualifies it for ESD protection of exposed connectors and harness interfaces in automotive cabins and exterior modules.
Can 3.0SMCJ24AQ-13 replace 3.0SMCJ22AQ-13 in a design?
Only if the 22V VRWM margin is no longer required. The 24V standoff provides tighter clamping headroom above 12V nominal systems but reduces tolerance for supply overvoltage-verify that worst-case battery voltage (e.g., 16.5V) plus ripple remains below 24V before substitution.
3.0SMCJ24AQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 77.1A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 3000pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ24AQ-13 FAQ
1.How can I place an order for 3.0SMCJ24AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ24AQ-13 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 3.0SMCJ24AQ-13 reliable?
The price and inventory of 3.0SMCJ24AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ24AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ24AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ24AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ24AQ-13?
3.0SMCJ24AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ24AQ-13 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 3.0SMCJ24AQ-13?
For technical support, including 3.0SMCJ24AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ24AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ24AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ24AQ-13 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 3.0SMCJ24AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ24AQ-13?
All 3.0SMCJ24AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ24AQ-13, 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 3.0SMCJ24AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ24AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ24AQ-13 Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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