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Diodes Incorporated 3.0SMCJ15AQ-13
- Part No.:
- 3.0SMCJ15AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ15AQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,173
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Product details
Overview
3.0SMCJ15AQ-13 from Diodes Incorporated is a unidirectional 15V standoff transient voltage suppressor (TVS) diode rated for 3000W peak pulse power, 24.2V clamping voltage at 124A peak pulse current, and 5µA max reverse leakage at VRWM. It features glass-passivated die construction, AEC-Q101 qualification for automotive use, and RoHS-compliant matte tin-plated SMC package terminals.
For engineers reviewing the 3.0SMCJ15AQ-13 datasheet, 3.0SMCJ15AQ-13 pinout, 3.0SMCJ15AQ-13 application, or 3.0SMCJ15AQ-13 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, IEC-61000-4-2 ESD robustness (30kV air/30kV contact), thermal derating above +25°C ambient, and compatibility with 8.00mm² PCB copper land patterns for surge current handling.
Technical Context
This TVS operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds 15.0V standoff and breaks down between 16.7V–18.5V at 1.0mA test current. Its 24.2V clamping voltage is specified under standardized 10×1000µs waveform conditions, ensuring predictable overvoltage protection during fast transients like EFT or lightning-induced surges.
The device sustains 300A non-repetitive forward surge current (8.3ms half-sine) and exhibits thermal stability across –55°C to +150°C junction temperature range. Its SMC package enables surface-mount integration into high-density automotive power rails while maintaining IATF 16949-certified manufacturing traceability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains single-event surges up to 124A at 24.2V clamping without failure |
| Reverse Standoff Voltage | 15.0V - maximum continuous DC or RMS voltage before significant leakage begins |
| Clamping Voltage | 24.2V @ 124A - limits downstream circuit voltage during 10×1000µs transient events |
| Breakdown Voltage | 16.7–18.5V @ 1.0mA - precise avalanche initiation window ensures reliable turn-on margin |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - protects against human-handling and system-level ESD |
| Operating Temperature | –55°C to +150°C - qualified for under-hood automotive environments and industrial power supplies |
Pinout & Package
Package: SMC (DO-214AB), molded plastic body with UL 94V-0 flammability rating, 0.21g mass, and matte tin-plated leads solderable per MIL-STD-202 Method 208. Cathode band denotes polarity on unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-impedance return path; defines clamping reference point |
| Cathode | High-side surge input terminal | Connected to protected line (e.g., 12V battery rail); absorbs positive transients to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power domains |
| Glass-passivated die | Enhances long-term reliability and moisture resistance in harsh under-hood environments |
| 3000W peak pulse rating | Enables protection of 12V/24V systems against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 12V battery feed to engine control unit (ECU) exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive transients to ground, limiting voltage seen by LDOs and microcontrollers. Use Value: 24.2V clamping ensures protected ICs with 28V absolute maximum ratings remain within safe operating area during 120V load dump events. |
Use Scenario: 24V DC input to programmable logic controller digital input module. IC Role / Device Role / Timing Role: Front-end surge suppression for optocoupler input stages subjected to field-wiring induced transients. Use Value: 3000W rating handles repetitive 1kV/500A surge tests per IEC 61000-4-5 Level 4 without degradation. |
| Telecom Power Supply Input | Medical Equipment Battery Interface |
Use Scenario: Primary-side DC input (–48V nominal) of telecom rectifier modules. IC Role / Device Role / Timing Role: Bidirectional-capable variant used in differential mode; this unidirectional version applied to common-mode line-to-ground paths. Use Value: 15V standoff allows operation across full –36V to –72V input range while clamping negative surges to safe levels. |
Use Scenario: Rechargeable Li-ion battery pack connection to patient monitoring device mainboard. IC Role / Device Role / Timing Role: Polarity-corrected transient suppression on battery+ line to prevent overvoltage damage during hot-plug or charger fault events. Use Value: AEC-Q101 qualification supports functional safety requirements (IEC 62304 Class C) for life-critical power interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15AQ-13 | 2000W peak power, 24.4V clamping @ 82.5A, SMB package (smaller footprint, lower thermal mass) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select when board space is constrained and surge energy does not exceed 2000W capability |
| 1.5SMCJ15AQ-13 | 1500W peak power, 24.4V clamping @ 61.5A, same SMC package but lower surge rating | Requires parallel placement for equivalent 3000W protection; increases BOM count and layout complexity | Use only if legacy design uses 1.5kW-rated TVS and incremental upgrade is preferred over redesign |
Compared with SMBJ15AQ-13 and 1.5SMCJ15AQ-13, the 3.0SMCJ15AQ-13 delivers 50% higher single-pulse energy handling in identical SMC footprint, eliminating need for paralleling or derated operation in automotive 12V systems subject to load dump.
Availability
3.0SMCJ15AQ-13 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power supplies, and medical battery interfaces requiring stable component supply with full AEC-Q101 traceability and IATF 16949 manufacturing compliance.
Supply support for 3.0SMCJ15AQ-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
This device belongs to Diodes' 3.0SMCJ series of high-power TVS diodes engineered specifically for automotive-grade transient suppression in 12V/24V systems, emphasizing AEC-Q101 reliability, IEC/ISO surge compliance, and thermally robust SMC packaging.
FAQ
What is the difference between 3.0SMCJ15AQ-13 and standard 3.0SMCJ15A-13?
The "Q" suffix indicates AEC-Q101 qualification, meaning this variant undergoes additional stress testing (including temperature cycling, HTRB, and ESD) and is manufactured in IATF 16949-certified facilities. Standard 3.0SMCJ15A-13 lacks automotive qualification documentation and process controls required for automotive production.
Can 3.0SMCJ15AQ-13 be used in bidirectional configurations?
No - the "Q"-suffixed part is unidirectional only, indicated by its cathode band marking and electrical specifications (e.g., breakdown voltage defined only in reverse direction). For bidirectional protection, select the "C"-suffixed variant (e.g., 3.0SMCJ15CA-13), which has symmetrical breakdown in both polarities.
What PCB pad layout is recommended for optimal thermal performance?
Diodes specifies 8.00mm² copper land areas (minimum) per terminal to sustain 300A surge current. Recommended pad dimensions per SMC outline: 6.90mm × 4.40mm for each pad, with 2.50mm spacing between pads and 9.40mm overall length to accommodate thermal relief and solder fillet formation.
How does derating affect 3.0SMCJ15AQ-13's peak pulse power above +25°C ambient?
Per Figure 1 in DS30818 Rev. 18, peak pulse power linearly derates to 50% at +125°C ambient. At +100°C, it retains ~70% of 3000W rating (2100W), requiring system-level thermal analysis to ensure junction temperature stays ≤+150°C during surge events.
3.0SMCJ15AQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-214AB, SMC
- Series:
- 3.0SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.2V
- Current - Peak Pulse (10/1000µs):
- 124A
- Power - Peak Pulse:
- 3000W (3kW)
- 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
3.0SMCJ15AQ-13 FAQ
1.How can I place an order for 3.0SMCJ15AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ15AQ-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 3.0SMCJ15AQ-13 reliable?
The price and inventory of 3.0SMCJ15AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ15AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ15AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ15AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ15AQ-13?
3.0SMCJ15AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ15AQ-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 3.0SMCJ15AQ-13?
For technical support, including 3.0SMCJ15AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ15AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ15AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ15AQ-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 3.0SMCJ15AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ15AQ-13?
All 3.0SMCJ15AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ15AQ-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 3.0SMCJ15AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ15AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ15AQ-13 Tags
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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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Diodes Incorporated
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Diodes Incorporated
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