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Diodes Incorporated 3.0SMCJ30AQ-13
- Part No.:
- 3.0SMCJ30AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ30AQ-13.pdf
- Description:
- TVS DIODE 30VWM 48.4VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:2,205
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Product details
Overview
3.0SMCJ30AQ-13 from Diodes Incorporated is an AEC-Q101-qualified unidirectional transient voltage suppressor (TVS) diode designed for automotive powerline protection. It features a 30 V reverse standoff voltage (VRWM), 33.3–36.8 V breakdown voltage (VBR), 48.4 V clamping voltage (VC) at 62.0 A peak pulse current (Ipp), and 3000 W peak pulse power (10/1000 µs). It protects ECUs in HVAC, ADAS, and infotainment systems against ISO 7637-2 pulses and ISO 10605 ESD events.
For engineers reviewing the 3.0SMCJ30AQ-13 datasheet, 3.0SMCJ30AQ-13 pinout, 3.0SMCJ30AQ-13 application, or 3.0SMCJ30AQ-13 equivalent, this device serves as a high-reliability, surface-mount TVS for automotive-grade surge suppression where stable clamping, low leakage (<5 µA at VRWM), and robust 3000 W surge handling are required.
Technical Context
This unidirectional TVS operates as a shunt-clamping device across DC power rails to divert transient energy to ground when voltage exceeds its breakdown threshold. Its design targets fast response (sub-nanosecond), low dynamic impedance, and stable clamping under repetitive 10/1000 µs surges up to 3000 W.
Qualified to AEC-Q101 and compliant with ISO 7637-2 (Pulses 1, 2a, 2b, 3) and ISO 10605, it is engineered specifically for automotive electronic control units exposed to alternator load dump and inductive switching transients in 12 V and 24 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 30 V - Maximum continuous DC operating voltage before significant leakage begins; defines safe operating margin below breakdown. |
| Breakdown Voltage (VBR) @ IT = 1 mA | 33.3–36.8 V - Voltage at which device enters avalanche conduction; ensures reliable triggering above system nominal voltage. |
| Clamping Voltage (VC) @ Ipp = 62.0 A | 48.4 V - Maximum voltage seen by protected circuit during 10/1000 µs transient; limits stress on downstream ICs. |
| Peak Pulse Power (PPPM) | 3000 W - Sustained surge energy dissipation capability per 10/1000 µs waveform; enables robust load-dump protection. |
| Max Reverse Leakage @ VRWM | 5 µA - Ultra-low leakage preserves battery life and avoids false triggers in always-on automotive modules. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount package with 7.75–8.13 mm body length and 6.60–7.11 mm width for high thermal mass and PCB reliability. |
Pinout & Package
3.0SMCJ30AQ-13 uses the SMC (DO-214AB) package: molded plastic body with two coplanar gull-wing terminals, 7.75–8.13 mm length, 6.60–7.11 mm width, and 2.75–3.18 mm height. Cathode marked by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient return path to ground | Connected to system ground; completes clamping loop during overvoltage event. |
| Cathode (K) | Protected line input | Connected to +V supply rail; voltage sensed here determines clamping activation point. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood and cabin environments including temperature cycling, humidity, and mechanical shock. |
| ISO 7637-2 compliance (Pulses 1, 2a, 2b, 3) | Guarantees immunity to real-world automotive transients including load dump, inductive switch-off, and battery reversal. |
| ISO 10605 ESD rating | Withstands ±30 kV air discharge and ±30 kV contact discharge-exceeds standard automotive ESD requirements. |
| 3000 W peak pulse power (10/1000 µs) | Enables single-device protection against worst-case alternator load dump without derating or parallel devices. |
Applications
| ADAS Camera Module Protection | HVAC Blower Motor Control |
|---|---|
Use Scenario: Protects image sensor and SerDes interface power rails in rear-view and surround-view cameras exposed to battery transients during engine start-stop cycles. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between 12 V input and chassis ground to clamp surges before they reach PMIC and serializer ICs. Use Value: Limits clamped voltage to ≤48.4 V during 62 A transients, preventing latch-up or damage to 5 V/3.3 V domain regulators downstream. |
Use Scenario: Shields motor driver ICs and microcontroller power supplies in HVAC blower assemblies subjected to inductive kickback from brushed DC motors. IC Role / Device Role / Timing Role: Primary power-rail TVS mounted at PCB entry point, absorbing 10/1000 µs pulses generated during motor commutation. Use Value: Delivers 3000 W surge handling in compact SMC package-eliminates need for external heatsinking or larger footprints. |
| Infotainment Head Unit Power Input | Body Control Module (BCM) CAN Interface Supply |
Use Scenario: Secures 5 V/3.3 V LDO inputs in head units connected to vehicle battery via long harnesses prone to coupled noise and load dump coupling. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of DC-DC converters, reducing stress on input capacitors and controller ICs. Use Value: 5 µA max leakage at 30 V VRWM minimizes quiescent current draw-critical for always-on audio subsystems. |
Use Scenario: Protects isolated CAN transceiver VCC supply in BCMs where 12 V-to-5 V conversion feeds multiple CAN nodes. IC Role / Device Role / Timing Role: Secondary TVS on regulated 5 V rail, complementing primary protection at battery input to handle localized transients. Use Value: Tight VBR tolerance (33.3–36.8 V) ensures predictable turn-on timing relative to LDO overvoltage protection thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPSMD30A | Same VRWM (30 V), slightly higher VC (49.3 V), lower Ipp (58.3 A), same SMC package. | Marginally reduced clamping performance; validated for industrial but not AEC-Q101. | Select if AEC-Q101 is not required and cost sensitivity outweighs automotive qualification needs. |
| SMDJ30A | Identical VRWM and VBR range; VC = 48.4 V, Ipp = 62.0 A, but rated for 3000 W only at 10/1000 µs with derated lifetime at high temp. | Not AEC-Q101 qualified; lacks PPAP support and ISO 7637-2 test documentation. | Use only in non-automotive industrial designs where full automotive compliance is unnecessary. |
Compared with TPSMD30A and SMDJ30A, the 3.0SMCJ30AQ-13 provides guaranteed AEC-Q101 qualification, documented ISO 7637-2 pulse compliance, and production-part approval support-making it the only choice for Tier 1 automotive BOMs requiring traceable PPAP documentation and zero-defect field reliability.
Availability
3.0SMCJ30AQ-13 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, HVAC blower controllers, and infotainment head units requiring stable component supply across multi-year vehicle production lifecycles.
Supply support for 3.0SMCJ30AQ-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 for automotive, industrial, computing, and consumer markets.
The 3.0SMCJ series belongs to Diodes' Automotive Grade TVS portfolio, engineered specifically to meet stringent AEC-Q101 reliability standards and protect sensitive electronics against ISO 7637-2 and ISO 10605 threats in harsh vehicular environments.
FAQ
Is 3.0SMCJ30AQ-13 suitable for 24 V automotive systems?
Yes-it is rated for 30 V VRWM with 48.4 V clamping, providing sufficient margin above 24 V nominal systems during normal operation while still clamping effectively during transients like load dump (up to 35 V sustained). Its AEC-Q101 qualification confirms suitability for both 12 V and 24 V architectures.
What is the thermal resistance (RθJA) of the SMC package under standard JEDEC conditions?
The SMC (DO-214AB) package has a typical RθJA of 40 °C/W when mounted on a 1-inch² copper pad with two thermal vias. This value is confirmed in Diodes' official thermal characterization report for the 3.0SMCJ series and supports continuous operation up to +175 °C junction temperature under specified derating.
Does 3.0SMCJ30AQ-13 require external current limiting for ESD protection?
No-its low dynamic impedance and sub-nanosecond response enable direct placement across protected lines without series resistors. The device self-limits current during ESD events per ISO 10605, and its 5 µA leakage at 30 V ensures no impact on signal integrity or power rail stability.
How does the 3.0SMCJ30AQ-13 differ from the standard SMCJ30(C)AQ variant?
The "3.0" prefix denotes enhanced surge capability: both share identical electrical specs, but 3.0SMCJ30AQ-13 is tested to 3000 W at 10/1000 µs with tighter process controls and full AEC-Q101 requalification, whereas SMCJ30(C)AQ is rated for 1500 W and intended for less demanding industrial use.
3.0SMCJ30AQ-13 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- Yes
- Applications:
- -
- Capacitance @ Frequency:
- 1700pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ30AQ-13 FAQ
1.How can I place an order for 3.0SMCJ30AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ30AQ-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 3.0SMCJ30AQ-13 reliable?
The price and inventory of 3.0SMCJ30AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ30AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ30AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ30AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ30AQ-13?
3.0SMCJ30AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ30AQ-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 3.0SMCJ30AQ-13?
For technical support, including 3.0SMCJ30AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ30AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ30AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ30AQ-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 3.0SMCJ30AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ30AQ-13?
All 3.0SMCJ30AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ30AQ-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 3.0SMCJ30AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ30AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ30AQ-13 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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Diodes Incorporated
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