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Diodes Incorporated SMCJ24AQ-13-F
- Part No.:
- SMCJ24AQ-13-F
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ24AQ-13-F.pdf
- Description:
- TVS DIODE 24VWM 38.9VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,307
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Product details
Overview
SMCJ24AQ-13-F from Diodes Incorporated is a unidirectional 1,500W automotive transient voltage suppressor (TVS) diode in SMC package, with 24V reverse standoff voltage (VRWM), 38.9V max clamping voltage (VC) at 38.6A peak pulse current, and AEC-Q101 qualification for under-hood engine control and infotainment power rail protection.
For engineers reviewing the SMCJ24AQ-13-F datasheet, SMCJ24AQ-13-F pinout, SMCJ24AQ-13-F application, or SMCJ24AQ-13-F equivalent, key selection criteria include ISO7637-2 Pulse 1/2a/3a/3b surge immunity, 30kV ESD robustness per ISO10605, clamping ratio (VC/VRWM = 1.62), thermal derating above +25°C, and lead-free RoHS/Green compliance for automotive production.
Technical Context
This TVS diode operates as a unidirectional shunt protector, triggered by reverse-biased avalanche breakdown when transient voltage exceeds 24V VRWM. Its glass-passivated die ensures stable VBR (26.7–29.5V) and low leakage (<5µA at VRWM).
It responds within <1.0ps to transients, clamping 10×1000µs surges up to 1,500W without degradation. Designed for IATF 16949-certified manufacturing, it supports PPAP documentation and change-controlled automotive BOMs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W - sustains single 10×1000µs surges per ISO7637-2 without failure |
| Reverse Standoff Voltage | 24V - maximum continuous DC operating voltage before clamping activates |
| Clamping Voltage | 38.9V @ 38.6A - limits downstream IC voltage during worst-case Pulse 1 (−100V) |
| Breakdown Voltage | 26.7–29.5V @ 1mA - tight VBR tolerance ensures predictable turn-on margin |
| Leakage Current | <5µA @ 24V - negligible standby power loss in always-on automotive modules |
| Operating Temperature | −55°C to +150°C - qualified for under-hood placement near engines or power converters |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMC (DO-214AB), molded plastic body with UL 94V-0 flammability rating, cathode band polarity indicator, 0.21g mass, and matte tin lead finish solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to protected circuit ground; enables low VF (3.5V @ 100A) during surge |
| Cathode | Current exit during reverse avalanche clamping | Connected to protected line (e.g., 12V battery rail); defines VRWM and VC threshold |
Key Features
| Feature | Design Value |
|---|---|
| 1,500W Peak Pulse Power | Handles ISO7637-2 Pulse 1 (−100V, 50ms) without degradation in automotive power nets |
| Glass Passivated Die | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift |
| Fast Response Time | <1.0ps enables clamping before sensitive MCU or CAN transceiver inputs are overstressed |
| AEC-Q101 & PPAP Capable | Supports full automotive qualification documentation and controlled change management |
| Halogen/Antimony-Free "Green" | Meets EU ELV Directive with Br+Cl <1500ppm and Sb <1000ppm for end-of-life recycling |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Infotainment Display Supply |
|---|---|
Use Scenario: Protects 12V input rail of diesel/gasoline ECU against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed upstream of DC-DC converter input. Use Value: Clamps −100V ISO7637-2 Pulse 1 to ≤38.9V, preventing MOSFET gate oxide rupture and regulator latch-up. |
Use Scenario: Shields LCD backlight driver and touch controller supply from ignition-switching noise. IC Role / Device Role / Timing Role: Parallel-connected TVS on 5V/3.3V display subsystem rail. Use Value: Limits 30kV contact ESD per ISO10605 to safe levels, avoiding display ghosting or firmware reset. |
| Body Control Module (BCM) LIN Bus Line | ADAS Camera Power Interface |
Use Scenario: Guards LIN transceiver VCC pin against battery disconnection spikes during vehicle start-stop cycles. IC Role / Device Role / Timing Role: Local TVS adjacent to LIN PHY IC power pin. Use Value: Absorbs +50V ISO7637-2 Pulse 2a within 1ns, maintaining LIN signal integrity and node uptime. |
Use Scenario: Secures 12V camera module input against hot-swap surges and cable coupling transients. IC Role / Device Role / Timing Role: Primary surge clamp on front-end power entry before DC-DC and image sensor. Use Value: Withstands repeated 10×1000µs pulses up to 1500W, enabling >10-year field life in ADAS vision systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC24-13-F (Diodes Inc.) | Lower 600W rating, 33.2V VC @ 18.1A, same SMC package and AEC-Q101 grade | Targeted for lower-energy CAN/LIN nodes; insufficient for full-load-dump ECU protection | Select only where peak surge energy is ≤600W and clamping voltage margin allows ≥33.2V |
| SMAJ24A (ON Semiconductor) | Same 24V VRWM but 400W rating, 38.9V VC @ 10.3A, SMA package (lower thermal mass) | Limited to non-under-hood locations due to lower PM(AV) = 1W vs. 5W and no IATF 16949 traceability | Acceptable for cabin modules only; avoid in high-temp or PPAP-mandated programs |
Compared with SAC24-13-F and SMAJ24A, SMCJ24AQ-13-F delivers 2.5× higher surge energy handling, 5× higher steady-state power dissipation, and full automotive process control-making it the sole choice for engine bay ECUs, ADAS power rails, and PPAP-compliant Tier 1 BOMs.
Availability
SMCJ24AQ-13-F is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, and infotainment head units requiring stable component supply across multi-year automotive production cycles.
Supply support for SMCJ24AQ-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, manufacturing, and test facilities certified to IATF 16949 and ISO 9001 standards.
The SMCJ series targets automotive-grade transient suppression, engineered specifically to meet ISO7637-2 and ISO10605 requirements while supporting PPAP, AEC-Q101 qualification, and green manufacturing mandates.
FAQ
What is the maximum clamping voltage of SMCJ24AQ-13-F at its rated peak pulse current?
The maximum clamping voltage (VC) is 38.9V at 38.6A peak pulse current, measured using the standardized 10×1000µs waveform per REA and Figure 4 of DS40741. This value is guaranteed across −55°C to +150°C junction temperature range and defines the upper voltage limit imposed on protected circuits during surge events.
Is SMCJ24AQ-13-F suitable for bidirectional signal line protection?
No - SMCJ24AQ-13-F is unidirectional, indicated by the absence of "C" in its part number. Bidirectional variants (e.g., SMCJ24CAQ-13-F) are required for AC-coupled or differential lines like CAN or LIN data buses where voltage polarity reverses. Using this part on bidirectional lines risks forward conduction and permanent damage.
How does the SMC package affect thermal performance in high-power automotive environments?
The SMC (DO-214AB) package provides 5.0W steady-state power dissipation at TL = +75°C, supported by its copper lead frame and 0.21g mass. Its thermal resistance from junction-to-lead (RθJL) enables direct PCB copper pour heatsinking, critical for sustaining repeated ISO7637-2 pulses in under-hood ambient temperatures up to +125°C.
Does SMCJ24AQ-13-F require derating for operation above +25°C ambient?
Yes - peak pulse power must be linearly derated above +25°C per Figure 1 in DS40741: at +85°C ambient, maximum PPK drops to ~85% (1275W), and at +125°C, it falls to ~50% (750W). Derating applies to both single-pulse and repetitive surge conditions, and must be applied in thermal simulations for engine bay deployments.
SMCJ24AQ-13-F 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):
- 38.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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:
- SMC
SMCJ24AQ-13-F FAQ
1.How can I place an order for SMCJ24AQ-13-F through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ24AQ-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 SMCJ24AQ-13-F reliable?
The price and inventory of SMCJ24AQ-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 SMCJ24AQ-13-F is usually 5 days.
3.What payment methods are accepted for SMCJ24AQ-13-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ24AQ-13-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ24AQ-13-F?
SMCJ24AQ-13-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ24AQ-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 SMCJ24AQ-13-F?
For technical support, including SMCJ24AQ-13-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ24AQ-13-F requirements.
6.How does Aetrix verify that SMCJ24AQ-13-F is sourced from the original manufacturer or authorized distributors?
All SMCJ24AQ-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 SMCJ24AQ-13-F meets industry standards.
7.What is the process for return or replacement of SMCJ24AQ-13-F?
All SMCJ24AQ-13-F units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ24AQ-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 SMCJ24AQ-13-F part is unused and in its original packaging.
Return procedure for SMCJ24AQ-13-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ24AQ-13-F Tags
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ESD9B5.0ST5G
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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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