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Diodes Incorporated 3.0SMCJ7.0AQ-13
- Part No.:
- 3.0SMCJ7.0AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ7.0AQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,063
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Product details
Overview
3.0SMCJ7.0AQ-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) designed for primary overvoltage protection on DC power rails and signal lines. It features a 7.0V reverse standoff voltage (VRWM), 12.0V maximum clamping voltage (VC) at 250A peak pulse current, and IEC-61000-4-2 ESD immunity of 30kV (air/contact). It is used in automotive infotainment power inputs to absorb load dump and ISO 7637-2 transients.
For engineers reviewing the 3.0SMCJ7.0AQ-13 datasheet, 3.0SMCJ7.0AQ-13 pinout, 3.0SMCJ7.0AQ-13 application, or 3.0SMCJ7.0AQ-13 equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under 10/1000μs waveform, thermal derating above +25°C ambient, and SMC package solderability per MIL-STD-202.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device: when transient voltage exceeds its breakdown threshold (7.78–8.60V), it avalanches into low-impedance conduction to shunt surge energy away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<200µA at VRWM).
The device is rated for 3000W peak pulse power (10×1000μs waveform), supports 300A non-repetitive forward surge current (8.3ms half-sine), and maintains operation across –55°C to +150°C junction temperature - critical for under-hood automotive deployment where thermal cycling and high ambient stress are routine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10/1000μs transients without failure; defines maximum energy absorption capacity. |
| Reverse Standoff Voltage (VRWM) | 7.0V - maximum continuous DC or RMS voltage before significant leakage; sets minimum operating rail margin. |
| Breakdown Voltage (VBR) | 7.78–8.60V @ 10mA - guaranteed avalanche initiation range; determines earliest clamping onset. |
| Max Clamping Voltage (VC) | 12.0V @ 250A - worst-case voltage seen by protected circuit during full-rated surge; defines safe headroom for 5V/3.3V ICs. |
| Peak Pulse Current (IPP) | 250.0A - maximum transient current the device can safely divert while maintaining VC ≤ 12.0V. |
| ESD Rating | 30kV air / 30kV contact per IEC-61000-4-2 - qualifies for direct interface protection in exposed ports (e.g., USB, CAN, LIN). |
| Operating Temperature | –55°C to +150°C - enables placement near heat sources (ECUs, power modules) without derating concerns. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; terminals are matte tin-plated for solderability per MIL-STD-202, Method 208. Uni-directional configuration indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge return path | Connected to ground or low-impedance reference; completes clamping loop during transient events. |
| Cathode | Protected line connection | Connected to input rail (e.g., battery feed); voltage referenced to anode during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 3000W peak pulse power | Enables single-device protection against severe ISO 7637-2 Pulse 5a (load dump) up to 120V/300ms on 12V systems. |
| 12.0V clamping at 250A | Provides ≥2.0V margin below typical 14V automotive microcontroller absolute maximum ratings, preventing latch-up or damage. |
| Glass-passivated die | Ensures long-term parameter stability and low parametric drift under thermal cycling and humidity exposure. |
| AEC-Q101 qualified variant available | Q-suffix version meets stress test requirements for automotive discrete semiconductors (e.g., HTOL, TCT, ESD). |
| RoHS 3 & "Green" compliant | Contains <900ppm Br, <900ppm Cl, <1000ppm Sb - satisfies Tier 1 automotive supplier material declarations and end-of-life recycling mandates. |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
|
Use Scenario: 12V battery-fed ECU power entry subjected to ISO 7637-2 load dump (up to 120V, 400ms) and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converter input; responds within nanoseconds to limit voltage excursion. Use Value: Prevents destruction of buck controller ICs (e.g., MPQ4312) by holding rail voltage ≤12.0V during 250A transients. |
Use Scenario: 24V digital input channel on programmable logic controller exposed to field-wiring induced surges (IEC 61000-4-4, 4kV). IC Role / Device Role / Timing Role: Front-end transient suppressor on optocoupler input side; absorbs fast-rising common-mode spikes before signal conditioning. Use Value: Maintains input logic integrity by limiting transient overshoot to <12V, avoiding false triggering or phototransistor saturation. |
| USB Type-C Port ESD Protection | Telecom Line Interface Protection |
|
Use Scenario: VBUS line of automotive USB-C receptacle subject to hot-plug insertion and human-body ESD events. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after integrated USB-C controller's internal protection; handles residual energy beyond IC limits. Use Value: Passes IEC 61000-4-2 Level 4 (30kV air) without degradation, preserving port reliability over 10,000+ connect/disconnect cycles. |
Use Scenario: 48V phantom-powered analog telephone line interface in VoIP gateway exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-stage surge diverter on line-side transformer primary; works in coordination with gas discharge tube (GDT) for staged protection. Use Value: Clamps induced transients to <12V before reaching line driver IC (e.g., SI32260), reducing risk of transformer insulation breakdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A-13-F | Lower peak power (600W), same VRWM (7.0V), higher VC (12.4V @ 48.6A) | Suitable only for lower-energy transients (e.g., IEC 61000-4-5 Level 3); insufficient for ISO 7637-2 Pulse 5a. | Select when space-constrained SMB package is required and surge threat level is limited to ESD/inductive switching. |
| 1.5SMC7.0A | Same SMC package, but 1500W rating, 12.5V VC @ 120A, higher IR (500µA) | Marginally adequate for 24V industrial systems; fails under sustained 12V load dump conditions. | Choose only for cost-sensitive non-automotive applications where 3000W headroom is not mandated by standards. |
Compared with SMBJ7.0A-13-F and 1.5SMC7.0A, the 3.0SMCJ7.0AQ-13 delivers 5× and 2× higher peak power respectively, enabling compliance with automotive-grade surge immunity standards while maintaining identical PCB footprint and assembly process.
Availability
3.0SMCJ7.0AQ-13 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial PLC I/O modules, USB-C port protection, and telecom line interfaces requiring stable component supply across multi-year production programs.
Supply support for 3.0SMCJ7.0AQ-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 manufacturing certified to IATF 16949 and quality systems aligned to AEC-Q standards.
The 3.0SMCJ series belongs to Diodes' high-power TVS portfolio engineered specifically for automotive and industrial environments demanding robust, repeatable transient suppression under extreme thermal and electrical stress.
FAQ
What is the difference between 3.0SMCJ7.0AQ-13 and non-Q variants?
The "Q" suffix indicates qualification to AEC-Q101 for automotive use, including extended reliability testing (HTOL, TCT, ESD), PPAP documentation, and traceability to IATF 16949-certified production lines. Non-Q versions lack this formal qualification and are intended for commercial/industrial applications only.
Can 3.0SMCJ7.0AQ-13 be used in bidirectional configurations?
No - the "A" suffix denotes unidirectional construction with cathode band marking. Bidirectional variants (e.g., 3.0SMCJ7.0CA-13) have no polarity indicator and symmetric breakdown in both directions. Using a unidirectional device in AC or floating applications risks reverse-bias failure.
How does thermal derating affect performance at +100°C ambient?
At +100°C, peak pulse power drops to ~65% of rated 3000W (≈1950W) per Figure 1. This reduces maximum sustainable IPP to ~162A at 12.0V clamping - still sufficient for most ISO 7637-2 Pulse 1/2/3a events, but Pulse 5a requires verification using derated curves.
Is lead (Pb)-free plating compatible with standard reflow profiles?
Yes - matte tin plating meets J-STD-020 moisture sensitivity Level 1 and is qualified for standard SnPb and lead-free reflow profiles (peak 260°C). Recommended pad layout matches Diodes' SMC land pattern (C=6.90mm, G=4.40mm, X=2.50mm) to ensure void-free solder joints.
3.0SMCJ7.0AQ-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):
- 7V
- Voltage - Breakdown (Min):
- 7.78V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 250A
- 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
3.0SMCJ7.0AQ-13 FAQ
1.How can I place an order for 3.0SMCJ7.0AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ7.0AQ-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 3.0SMCJ7.0AQ-13 reliable?
The price and inventory of 3.0SMCJ7.0AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ7.0AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ7.0AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ7.0AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ7.0AQ-13?
3.0SMCJ7.0AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ7.0AQ-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 3.0SMCJ7.0AQ-13?
For technical support, including 3.0SMCJ7.0AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ7.0AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ7.0AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ7.0AQ-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 3.0SMCJ7.0AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ7.0AQ-13?
All 3.0SMCJ7.0AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ7.0AQ-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 3.0SMCJ7.0AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ7.0AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ7.0AQ-13 Tags
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