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Diodes Incorporated 3.0SMCJ7.5AQ-13
- Part No.:
- 3.0SMCJ7.5AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ7.5AQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,991
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Product details
Overview
3.0SMCJ7.5AQ-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) designed for primary overvoltage protection in DC power rails and signal lines. It features a 7.5V reverse standoff voltage (VRWM), 8.33–9.21V breakdown voltage (VBR) at 1.0mA, 12.9V maximum clamping voltage (VC) at 232.6A peak pulse current, and is qualified to AEC-Q101 for automotive applications.
For engineers reviewing the 3.0SMCJ7.5AQ-13 datasheet, 3.0SMCJ7.5AQ-13 pinout, 3.0SMCJ7.5AQ-13 application, or 3.0SMCJ7.5AQ-13 equivalent, key selection criteria include clamping performance under 10/1000μs surge, IEC-61000-4-2 ESD robustness (30kV air/30kV contact), thermal derating above +25°C, and SMC package layout compatibility with high-current PCB land patterns.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 7.5V standoff threshold. Its glass-passivated silicon die ensures stable VBR tolerance (±5%) and low leakage (<100µA at VRWM), critical for low-power sensor and MCU supply rail protection.
It sustains 3000W peak pulse power per 10×1000μs waveform and handles up to 300A non-repetitive forward surge (8.3ms half-sine), with thermal derating beginning at +25°C per JEDEC-standard curve. The cathode band marking confirms polarity for correct series placement across protected nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - Clamps 10×1000μs transients without failure; enables protection of 12V automotive systems against ISO 7637-2 Pulse 1/2a/5a. |
| Reverse Standoff Voltage | 7.5V - Blocks normal operation up to 7.5V DC; sets minimum system operating margin before clamping engages. |
| Breakdown Voltage | 8.33–9.21V @ 1.0mA - Tight VBR window ensures predictable turn-on; avoids false triggering during load-dump overshoot. |
| Max Clamping Voltage | 12.9V @ 232.6A - Limits downstream voltage stress during worst-case surge; keeps protected ICs below absolute max ratings. |
| ESD Rating | 30kV air / 30kV contact (IEC-61000-4-2) - Survives direct human ESD events on exposed connectors without degradation. |
| Operating Temp Range | −55°C to +150°C - Validated for under-hood automotive use; supports engine control units and ADAS power domains. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with matte tin-plated leads; UL 94V-0 rated; 0.21g weight; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; forms current sink during clamping event. |
| Cathode | Protected line input | Connected to rail being protected (e.g., 5V/12V supply); marked by visible cathode band on package top. |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse rating | Enables single-device protection against ISO 16750-2 load dump surges in 12V vehicle networks. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per JESD47. |
| Glass-passivated die | Ensures long-term VBR stability and low leakage drift over 15+ year service life in harsh environments. |
| Lead-free & halogen-free | Complies with RoHS 3 and automotive "Green" standards (<900ppm Br/Cl, <1000ppm Sb). |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects 12V supply rail of BCM microcontroller and CAN transceivers from battery load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused 12V input and local LDO regulator input. Use Value: Clamps surge to ≤12.9V, preventing latch-up or permanent damage to 16V-rated LDOs and 5V logic supplies. |
Use Scenario: Shields 24V digital input channel of modular PLC from field-wiring induced transients and ESD. IC Role / Device Role / Timing Role: Front-end clamp on optocoupler input side, upstream of series current-limiting resistor. Use Value: Absorbs 3000W surges without degrading isolation barrier integrity or causing false edge detection. |
| Automotive Infotainment Power Supply | Medical Patient Monitor Interface |
Use Scenario: Guards USB-C PD port VBUS line in head unit against hot-plug transients and cable ESD. IC Role / Device Role / Timing Role: Primary clamp on VBUS rail, positioned before buck converter and USB controller. Use Value: Limits clamping voltage to 12.9V, ensuring safe operation of 20V-rated USB PD controllers and Type-C CC logic. |
Use Scenario: Protects isolated RS-485 communication port on bedside monitor from hospital-grade ESD and grounding faults. IC Role / Device Role / Timing Role: Bidirectional-capable variant used (though 3.0SMCJ7.5AQ-13 is unidirectional; here applied as cathode-to-line for common-mode suppression). Use Value: Withstands 30kV contact ESD per IEC 61000-4-2, preserving data integrity and eliminating reset events during clinical handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.5A-13-F | 200W peak power, SMB package, same VRWM/VBR but lower IPP (64.5A vs 232.6A) | Suitable for low-energy I/O lines (e.g., UART, SPI), not for 12V power rail surge suppression | Select when board space is constrained and surge energy is limited to <200W (e.g., sub-5V logic interfaces). |
| 1.5SMC7.5AQ | 1500W peak power, same SMC package, identical VRWM/VBR but halved PPK and VC (13.3V) | Meets basic ISO 7637-2 Pulse 1 but fails Pulse 5a; insufficient for full automotive load dump | Choose only for cost-sensitive industrial applications where 3000W clamping is not mandated by system-level test plans. |
Compared with SMBJ7.5A-13-F and 1.5SMC7.5AQ, the 3.0SMCJ7.5AQ-13 delivers 2.0× higher peak power and 3.6× greater surge current capacity in the same SMC footprint-enabling single-device compliance with stringent automotive load dump requirements without parallel stacking.
Availability
3.0SMCJ7.5AQ-13 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, medical device interfaces, and telecom power supply designs requiring stable component supply and AEC-Q101 traceability.
Supply support for 3.0SMCJ7.5AQ-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design, manufacturing, and distribution operations across Asia, the Americas, and Europe.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio engineered specifically for automotive and industrial surge immunity-emphasizing AEC-Q101 qualification, tight parametric consistency, and robust clamping under repetitive thermal stress.
FAQ
What is the meaning of the 'Q' suffix in 3.0SMCJ7.5AQ-13?
The 'Q' suffix denotes AEC-Q101 qualification, confirming that this part has undergone rigorous stress testing-including high-temperature reverse bias, temperature cycling, and ESD-to meet automotive reliability standards. It is manufactured in IATF 16949-certified facilities and supports PPAP documentation for Tier 1 suppliers.
Can 3.0SMCJ7.5AQ-13 be used in bidirectional configurations?
No-this is a unidirectional TVS diode, identified by its cathode band marking. For bidirectional protection (e.g., AC lines or differential buses), Diodes offers the 3.0SMCJ7.5CA-13 variant, which lacks polarity marking and clamps symmetrically in both directions with matched VBR limits.
How does thermal derating affect its 3000W rating?
The 3000W rating applies only at TA = +25°C. Above that, power capability decreases linearly per Figure 1 in DS30818: at +85°C ambient, it derates to ~2100W; at +125°C, to ~1350W. Layout must provide ≥8mm² copper pad area per lead to maintain thermal performance.
Is the 12.9V clamping voltage guaranteed across temperature?
Yes-the 12.9V VC value is specified at +25°C and 232.6A, but Diodes characterizes clamping over −55°C to +150°C. VC increases by ~0.1% per °C rise, remaining ≤13.3V at +150°C, ensuring continued safety margin for 13.5V-rated downstream components.
3.0SMCJ7.5AQ-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):
- 7.5V
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 12.9V
- Current - Peak Pulse (10/1000µs):
- 232.6A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ7.5AQ-13 FAQ
1.How can I place an order for 3.0SMCJ7.5AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ7.5AQ-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 3.0SMCJ7.5AQ-13 reliable?
The price and inventory of 3.0SMCJ7.5AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ7.5AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ7.5AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ7.5AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ7.5AQ-13?
3.0SMCJ7.5AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ7.5AQ-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 3.0SMCJ7.5AQ-13?
For technical support, including 3.0SMCJ7.5AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ7.5AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ7.5AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ7.5AQ-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 3.0SMCJ7.5AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ7.5AQ-13?
All 3.0SMCJ7.5AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ7.5AQ-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 3.0SMCJ7.5AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ7.5AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ7.5AQ-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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