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Diodes Incorporated 3.0SMCJ8.0AQ-13
- Part No.:
- 3.0SMCJ8.0AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ8.0AQ-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,666
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Product details
Overview
3.0SMCJ8.0AQ-13 from Diodes Incorporated is a unidirectional 3000W surface-mount transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features an 8.0V reverse standoff voltage (VRWM), 8.89–9.83V breakdown voltage (VBR) at 1.0mA test current, 13.6V maximum clamping voltage (VC) at 220.6A peak pulse current, and is qualified to AEC-Q101 for automotive applications.
For engineers reviewing the 3.0SMCJ8.0AQ-13 datasheet, 3.0SMCJ8.0AQ-13 pinout, 3.0SMCJ8.0AQ-13 application, or 3.0SMCJ8.0AQ-13 equivalent, this device is selected for robust ESD/EMI surge immunity in automotive infotainment power supplies, ADAS sensor interfaces, engine control unit (ECU) I/O protection, and industrial PLC input stages where fast response (<1ns), low clamping ratio (VC/VRWM ≈ 1.7), and high reliability under -55°C to +150°C operation are required.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by transient overvoltage events exceeding its breakdown threshold. Its glass-passivated silicon junction enables sub-nanosecond response time and stable leakage performance - with only 50µA max reverse leakage at VRWM - ensuring minimal standby power loss in always-on automotive systems.
The device complies with IEC-61000-4-2 Level 4 (±30kV air/±30kV contact), HBM ±8kV, CDM ±1kV, and MM ±800V ESD standards. Its unidirectional configuration includes a visible cathode band for polarity identification and supports single-pulse surge handling up to 3000W per the 10×1000µs waveform, with thermal derating above +25°C ambient per JEDEC JESD22-A104.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3000W - sustains 10×1000µs transients without failure in automotive load-dump or ISO 7637-2 pulse 5a scenarios |
| Reverse Standoff Voltage | 8.0V - defines maximum continuous DC operating voltage before significant leakage begins |
| Breakdown Voltage | 8.89–9.83V @ 1.0mA - ensures reliable triggering margin above VRWM while avoiding false trips during normal ripple |
| Clamping Voltage | 13.6V @ 220.6A - limits downstream IC voltage stress to safe levels during worst-case surge events |
| ESD Rating | ±30kV air/±30kV contact per IEC-61000-4-2 - protects CAN/LIN bus nodes and USB-C ports against human-hand electrostatic discharge |
| Operating Temperature | -55°C to +150°C - validated for under-hood ECU placement and transmission control module environments |
| AEC-Q101 Qualified | Yes - manufactured in IATF 16949-certified facilities with PPAP support for automotive production programs |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, molded plastic body with UL 94V-0 flammability rating; moisture sensitivity level 1 per J-STD-020; matte tin-plated leads solderable per MIL-STD-202, Method 208; weight ≈ 0.21g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage rail; forms cathode-to-anode conduction path during positive transients |
| Cathode | High-side protected node | Connected to protected line (e.g., 12V battery rail); clamps voltage when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures long-term stability of breakdown voltage and leakage current across temperature and humidity cycling |
| Lead-free, RoHS 3 & "Green" compliant | Contains <900ppm Br, <900ppm Cl, <1000ppm Sb - meets automotive environmental compliance requirements |
| Excellent clamping capability | Clamping ratio VC/VRWM = 1.7 enables tighter system-level voltage margining than standard 1.8–2.2 ratios |
| Automotive-grade qualification | AEC-Q101 qualification confirms reliability for 15-year vehicle service life under thermal shock, vibration, and humidity exposure |
Applications
| Automotive Infotainment Power Rail | ADAS Camera Sensor Interface |
|---|---|
|
Use Scenario: Protects 5V/12V power inputs to head-unit MCUs and display drivers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of LDOs and PMICs to prevent latch-up or gate oxide damage. Use Value: Withstands 3000W pulses without degradation, enabling single-device protection instead of multi-stage solutions and reducing BOM count by one component. |
Use Scenario: Shields MIPI CSI-2 differential pairs and power pins of image sensors in surround-view cameras from ESD events during assembly and field use. IC Role / Device Role / Timing Role: Fast-response TVS placed at connector entry point to shunt ESD energy before it couples into high-speed analog front-end circuitry. Use Value: Sub-1ns response and 13.6V clamping limit transient overshoot below sensor IC absolute maximum ratings, eliminating need for additional series impedance. |
| Engine Control Unit (ECU) I/O Protection | Industrial PLC Digital Input Module |
|
Use Scenario: Guards LIN bus transceivers and analog sensor inputs (e.g., MAP, TPS) against ignition noise and alternator ripple-induced spikes. IC Role / Device Role / Timing Role: Unidirectional TVS tied between signal line and chassis ground, providing low-capacitance (<50pF typical) surge suppression without signal integrity impact. Use Value: 50µA max IR at 8.0V minimizes loading on precision voltage dividers used in analog sensor conditioning circuits. |
Use Scenario: Safeguards 24V digital input channels in programmable logic controllers exposed to inductive kickback from solenoid valves and relay coils. IC Role / Device Role / Timing Role: High-energy clamping device mounted directly at terminal block to absorb 3000W transients before reaching isolation amplifiers or microcontroller GPIOs. Use Value: Rated for 300A peak forward surge (8.3ms half-sine) - exceeds IEC 61000-4-4 Level 4 requirements for industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A-13-F | Lower peak power (600W), same VRWM and package (SMB), higher clamping voltage (12.0V) | Suitable for consumer-grade 12V systems but not automotive load-dump or ISO 7637-2 pulse 5a | Select when cost sensitivity outweighs surge energy requirement and thermal derating is acceptable |
| 1.5SMC8.0A-Q | Same VRWM and unidirectional configuration, but lower peak power (1500W) and different package (SMC with alternate leadform) | Valid for non-critical industrial controls but lacks AEC-Q101 qualification and full 3000W rating | Choose only if footprint compatibility is prioritized over automotive qualification and full surge margin |
Compared with SMBJ8.0A-13-F and 1.5SMC8.0A-Q, the 3.0SMCJ8.0AQ-13 delivers 2× higher surge energy handling and certified automotive reliability - making it the sole option for safety-critical 12V rail protection where failure could disable engine management or braking functions.
Availability
3.0SMCJ8.0AQ-13 is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and industrial PLC input protection requiring stable component supply across extended product lifecycles.
Supply support for 3.0SMCJ8.0AQ-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 manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.
The 3.0SMCJ series targets high-energy transient suppression in harsh-environment applications, with design focus on AEC-Q101 compliance, low clamping ratio, and robust thermal performance across -55°C to +150°C.
FAQ
What is the difference between 3.0SMCJ8.0AQ-13 and non-Q versions like 3.0SMCJ8.0A-13?
The "Q" suffix indicates AEC-Q101 qualification: full automotive-grade testing including temperature cycling, highly accelerated life testing (HALT), and PPAP documentation. Non-Q versions lack formal automotive qualification, traceability, and IATF 16949 manufacturing controls - making them unsuitable for production vehicles or Tier 1 supplier BOMs.
Can 3.0SMCJ8.0AQ-13 be used in bidirectional signal lines like RS-485?
No - this is a unidirectional TVS diode with a cathode band; it only clamps positive transients relative to ground. For bidirectional data lines, a symmetric device such as 3.0SMCJ8.0CA-13 (bi-directional variant) must be used to protect both positive and negative excursions without rectification effects.
What is the recommended PCB layout for optimal thermal and electrical performance?
Use minimum 8.00mm² copper land area per pad (per datasheet Fig. 1 derating curve), avoid thermal reliefs on pads, and place the device within 5mm of the protected connector or IC pin. Maintain ≥0.5mm clearance from adjacent components to prevent arcing during clamping events.
How does the 13.6V clamping voltage affect system-level design margins?
At 220.6A IPP, the 13.6V clamping voltage sets the absolute upper bound seen by downstream components. Designers must ensure all connected ICs have VCC absolute maximum ratings ≥14.0V (with 0.4V margin), and verify that LDO dropout or regulator headroom remains sufficient during clamping to avoid brownout resets.
3.0SMCJ8.0AQ-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):
- 8V
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 220.6A
- 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
3.0SMCJ8.0AQ-13 FAQ
1.How can I place an order for 3.0SMCJ8.0AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ8.0AQ-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 3.0SMCJ8.0AQ-13 reliable?
The price and inventory of 3.0SMCJ8.0AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ8.0AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ8.0AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ8.0AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ8.0AQ-13?
3.0SMCJ8.0AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ8.0AQ-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 3.0SMCJ8.0AQ-13?
For technical support, including 3.0SMCJ8.0AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ8.0AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ8.0AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ8.0AQ-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 3.0SMCJ8.0AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ8.0AQ-13?
All 3.0SMCJ8.0AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ8.0AQ-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 3.0SMCJ8.0AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ8.0AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ8.0AQ-13 Tags
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