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Diodes Incorporated 3.0SMCJ22AQ-13
- Part No.:
- 3.0SMCJ22AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
3.0SMCJ22AQ-13.pdf
- Description:
- TVS DIODE 22VWM 35.5VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:6,840
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Product details
Overview
3.0SMCJ22AQ-13 from Diodes Incorporated is an AEC-Q101-qualified unidirectional transient voltage suppressor (TVS) diode in SMC package, designed for automotive powerline protection. It features 22 V reverse standoff voltage, 24.4–27.0 V breakdown voltage at 1 mA, ≤5 µA leakage at VRWM, 35.5 V clamping voltage at 84.5 A peak pulse current (10/1000 µs), and 3000 W peak pulse power dissipation - deployed in ADAS, HVAC, and infotainment ECUs to suppress ISO 7637-2 pulses and ISO 10605 ESD events.
For engineers reviewing the 3.0SMCJ22AQ-13 datasheet, 3.0SMCJ22AQ-13 pinout, 3.0SMCJ22AQ-13 application, or 3.0SMCJ22AQ-13 equivalent, key selection criteria include AEC-Q101 qualification status, 35.5 V clamping performance under 84.5 A surge, SMC package thermal robustness, and compliance with automotive load dump (ISO 7637-2 pulses 1/2a/2b/3) and ESD (ISO 10605) standards.
Technical Context
This TVS operates as a unidirectional clamping device, activated when reverse voltage exceeds 22 V standoff threshold and fully clamps within nanoseconds to limit transients to ≤35.5 V at 84.5 A. Its silicon avalanche structure ensures stable breakdown across temperature and repeatable surge handling per IEC 61000-4-5 waveform.
Designed specifically for 12 V automotive systems, it protects downstream ICs (e.g., CAN transceivers, microcontrollers, sensor interfaces) against alternator-induced load dump, inductive switching spikes from motors, and electrostatic discharge - meeting stringent PPAP-supported production requirements for OEM-tier supply chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 22 V - maximum continuous DC operating voltage before significant leakage begins; matches nominal 12 V system rail with margin for ripple and tolerance. |
| Breakdown Voltage (VBR) | 24.4–27.0 V @ 1 mA - guaranteed avalanche initiation range; ensures reliable turn-on before sensitive circuit damage thresholds. |
| Clamping Voltage (VC) | 35.5 V @ 84.5 A (10/1000 µs) - peak voltage seen by protected circuit during worst-case surge; enables safe operation of 3.3 V/5 V logic and analog front-ends. |
| Peak Pulse Power (PPPM) | 3000 W - maximum single-pulse energy absorption capability; supports repeated ISO 7637-2 pulse 5a (load dump) events without degradation. |
| Leakage Current (IR) | ≤5 µA @ 22 V - negligible standby power loss and minimal impact on low-current sensor bias networks. |
| AEC-Q101 Qualification | Qualified - validated for automotive underhood temperature cycling, humidity, mechanical shock, and lifetime reliability per stress test plan. |
Pinout & Package
3.0SMCJ22AQ-13 uses the SMC (DO-214AB) surface-mount package: 6.60–7.11 mm length, 5.59–6.22 mm width, 2.75–3.18 mm height, with gull-wing leads spaced 7.75–8.13 mm apart. Thermal pad design supports PCB copper pour for enhanced surge heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Marked Band) | Surge Current Sink | Connected to protected line (e.g., battery rail); conducts transient energy to ground during overvoltage event. |
| Anode | Reference / Ground Return | Connected to chassis or system ground; completes clamping path and defines reference potential for voltage limiting. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification with PPAP support | Validated for automotive production use with full traceability, process control, and failure analysis documentation. |
| ISO 7637-2 compliance (pulses 1, 2a, 2b, 3) | Guaranteed suppression of common automotive transients including switch-off spikes, relay bounce, and load dump precursors. |
| ISO 10605 ESD protection | Withstands ±15 kV contact / ±30 kV air discharge without parametric shift or functional failure. |
| 3000 W peak pulse power rating | Enables single-device protection of high-energy 12 V bus nodes without parallel staging or derating. |
Applications
| ADAS Camera Module Power Input | HVAC Blower Motor Control |
|---|---|
Use Scenario: Protects image sensor and ISP power rails from alternator load dump and motor commutation noise in rear-view or surround-view camera ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and LDO input capacitor; clamps surges before they reach 1.8 V/3.3 V domain regulators. Use Value: Prevents pixel corruption, frame drop, or brownout reset during vehicle ignition cycles and accessory load switching. | Use Scenario: Shields MCU and gate driver ICs in HVAC blower motor control modules from inductive kickback during PWM switching and fan stall events. IC Role / Device Role / Timing Role: Primary clamping device on 12 V supply rail upstream of buck converter; absorbs >100 A transient peaks with sub-100 ns response. Use Value: Eliminates field failures caused by MOSFET gate oxide rupture or MCU latch-up due to unclamped voltage overshoot. |
| Infotainment Head Unit USB Power Rail | Body Control Module LIN Bus Transceiver |
Use Scenario: Safeguards 5 V USB charging port power path in head units against hot-plug transients and ESD from user interface cables. IC Role / Device Role / Timing Role: Secondary-level TVS after primary fuse and upstream filter; provides final-stage clamping before USB controller VBUS pin. Use Value: Maintains USB enumeration integrity and prevents port disablement during roadside ESD events or cable insertion surges. | Use Scenario: Protects LIN physical layer transceiver pins (LIN bus and ground) from battery disconnect transients and body-ground potential shifts. IC Role / Device Role / Timing Role: Bidirectional-capable layout (though this part is unidirectional, used with series resistor for LIN line); clamps negative-going transients relative to ground. Use Value: Ensures uninterrupted LIN communication during door module actuation and seat motor operation without bus error frames. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPSMD22A | Same 22 V VRWM and 35.5 V VC, but rated for 2000 W (not 3000 W); SMC package with identical footprint. | Limited to lower-energy transients (e.g., ISO 7637-2 pulse 1 only); not qualified to AEC-Q101. | Select when cost sensitivity outweighs full load dump coverage and automotive qualification is not required. |
| SMDJ22A | Identical 22 V VRWM and 35.5 V VC, 3000 W rating, but lacks AEC-Q101 qualification and PPAP documentation. | Approved for industrial/commercial use only; unsuitable for Tier-1 automotive BOMs requiring audit-ready compliance. | Choose for non-automotive 12 V systems where surge immunity is needed but automotive certification is unnecessary. |
Compared with TPSMD22A and SMDJ22A, the 3.0SMCJ22AQ-13 uniquely delivers AEC-Q101 qualification, PPAP support, and full ISO 7637-2 pulse 5a (load dump) capability - making it the only option qualified for safety-critical automotive power rail protection where regulatory traceability and worst-case surge margin are mandatory.
Availability
3.0SMCJ22AQ-13 is available at Aetrix Electronics and suitable for ADAS camera modules, HVAC blower controllers, infotainment head units, and body control modules requiring stable component supply across multi-year automotive production programs.
Supply support for 3.0SMCJ22AQ-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 manufacturer specializing in discrete, analog, and mixed-signal devices for automotive, industrial, computing, and consumer markets.
The 3.0SMCJ series belongs to Diodes' Automotive Grade TVS portfolio, engineered specifically to meet OEM requirements for robust, PPAP-supported transient protection in harsh 12 V vehicle electrical environments.
FAQ
Is 3.0SMCJ22AQ-13 bidirectional or unidirectional?
3.0SMCJ22AQ-13 is a unidirectional TVS diode, optimized for clamping positive transients on grounded systems. Its cathode-marked terminal connects to the protected line, and anode to ground - enabling low-leakage operation below VRWM while providing fast avalanche response above breakdown voltage.
What is the maximum operating junction temperature for this device?
The 3.0SMCJ22AQ-13 has a maximum junction temperature of +175 °C, validated per AEC-Q101 thermal cycling and high-temperature operating life tests. This allows reliable deployment in under-hood locations such as engine control modules and transmission control units.
Does this part meet ISO 7637-2 Pulse 5a (load dump) requirements?
Yes - the 3000 W peak pulse power rating and 35.5 V clamping voltage at 84.5 A (10/1000 µs) enable compliance with ISO 7637-2 Pulse 5a up to 30 V test level when used with appropriate input impedance and layout. Full test reports are available under PPAP documentation.
Can 3.0SMCJ22AQ-13 replace SMAJ22AQ in existing designs?
No - SMAJ22AQ is in SMA package (400 W rating), while 3.0SMCJ22AQ-13 is in SMC package (3000 W). Footprint, thermal mass, and surge capacity differ significantly. Direct replacement requires PCB layout revision and revalidation of clamping performance under load dump conditions.
3.0SMCJ22AQ-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):
- 22V
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 84.5A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- Yes
- Applications:
- -
- Capacitance @ Frequency:
- 3000pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMC
3.0SMCJ22AQ-13 FAQ
1.How can I place an order for 3.0SMCJ22AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 3.0SMCJ22AQ-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 3.0SMCJ22AQ-13 reliable?
The price and inventory of 3.0SMCJ22AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 3.0SMCJ22AQ-13 is usually 5 days.
3.What payment methods are accepted for 3.0SMCJ22AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 3.0SMCJ22AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 3.0SMCJ22AQ-13?
3.0SMCJ22AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 3.0SMCJ22AQ-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 3.0SMCJ22AQ-13?
For technical support, including 3.0SMCJ22AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 3.0SMCJ22AQ-13 requirements.
6.How does Aetrix verify that 3.0SMCJ22AQ-13 is sourced from the original manufacturer or authorized distributors?
All 3.0SMCJ22AQ-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 3.0SMCJ22AQ-13 meets industry standards.
7.What is the process for return or replacement of 3.0SMCJ22AQ-13?
All 3.0SMCJ22AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with 3.0SMCJ22AQ-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 3.0SMCJ22AQ-13 part is unused and in its original packaging.
Return procedure for 3.0SMCJ22AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
3.0SMCJ22AQ-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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