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Diodes Incorporated DM6W33AQ-13
- Part No.:
- DM6W33AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
DM6W33AQ-13.pdf
- Description:
- TVS DO-218
- Quantity:
- Payment:
- Shipping:
Inventory:6,205
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Product details
Overview
DM6W33AQ-13 from Diodes Incorporated is an automotive-grade surface-mount transient voltage suppressor (TVS) diode in DO-218 (Type E) package, designed for high-energy load dump and ISO7637-2 surge protection in 12V/24V vehicle power systems. It delivers 4600W peak pulse power at 10/1000µs, clamps at 53.3V under 86A peak current, and maintains ≤10µA reverse leakage at 33V standoff voltage.
For engineers reviewing the DM6W33AQ-13 datasheet, DM6W33AQ-13 pinout, DM6W33AQ-13 application, or DM6W33AQ-13 equivalent, key selection criteria include its 33V reverse standoff voltage, 53.3V clamping performance at 86A, AEC-Q qualified reliability, DO-218 thermal resistance of 1.0°C/W, and compliance with ISO16750-2 load dump and ISO7637-2 Pulse 1/2a/3a/3b waveforms.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device, activating above its 33V reverse standoff voltage to divert surge energy away from downstream circuitry. Its low thermal resistance (1.0°C/W) enables effective heat transfer to the heatsink-anode configuration, supporting sustained 6W average power dissipation at TC = +25°C.
The device is characterized by tight breakdown voltage tolerance (36.7–40.6V at 5mA), low clamping ratio (1.61× VRWM), and stable performance across –55°C to +175°C operating range - critical for under-hood automotive environments subject to thermal cycling and high ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 4600W @ 10/1000µs - withstands severe ISO16750-2 load dump surges without failure |
| Reverse Standoff Voltage | 33V - sets minimum system overvoltage threshold before clamping activation |
| Clamping Voltage | 53.3V @ 86A - limits maximum voltage seen by protected ICs during worst-case transients |
| Breakdown Voltage | 36.7–40.6V @ 5mA - ensures reliable turn-on margin above VRWM with production tolerance control |
| Thermal Resistance | 1.0°C/W (Junction-to-Case) - enables efficient heatsink coupling for continuous 6W power handling |
| Operating Temperature | –55°C to +175°C - supports placement near engines, alternators, and other high-temperature zones |
| Surge Current Rating | 600A @ 8.3ms half-sine - handles repetitive load dump events per ISO16750-2 test conditions |
Pinout & Package
Package: DO-218 (Type E), molded plastic body with UL 94V-0 flammability rating; heatsink tab serves as anode terminal; cathode indicated by bar marking on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive surge return path | Electrically and thermally coupled to PCB copper pour for low-inductance, high-current surge conduction and thermal dissipation |
| Cathode (Top Marked Pin) | Transient sensing and clamping node | Connected to protected line (e.g., battery rail); initiates avalanche conduction when reverse voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q200 qualified - validated for temperature cycling, humidity, vibration, and lifetime reliability in automotive applications |
| Low clamping ratio | 1.61× VRWM - minimizes voltage overshoot during surge, reducing stress on downstream regulators and microcontrollers |
| Lead-free & green construction | RoHS 3 compliant, halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb) - meets global environmental and OEM material declarations |
| High-temperature stability | ≤10µA IR at 33V and +175°C - ensures low standby leakage even in extreme under-hood conditions |
| Low thermal resistance | 1.0°C/W RθJC - allows direct mounting to thermal pad for effective heat removal during repeated surge events |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects 12V input stage of engine control units against alternator load dump surges up to 120V and ISO7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed directly at connector entry point to clamp transients before LDOs and MCU power rails. Use Value: Prevents latch-up or permanent damage to 5V/3.3V regulators and automotive-grade MCUs during cold-crank and load-dump events. |
Use Scenario: Safeguards BCM power supply against battery reversal, jump-start spikes, and ISO7637-2 Pulse 1/2a induced noise on shared vehicle harnesses. IC Role / Device Role / Timing Role: Primary overvoltage protector on fused 12V main rail, upstream of DC-DC converters and CAN transceivers. Use Value: Maintains functional safety integrity by limiting rail voltage to ≤53.3V during 86A transients, preserving communication and actuator control. |
| ADAS Camera Power Supply | Infotainment Head Unit Power Entry |
Use Scenario: Shields 12V-to-5V/1.8V power tree of forward-facing ADAS cameras from EMI-coupled surges and harness-induced transients. IC Role / Device Role / Timing Role: First-line transient suppressor on camera module PCB, co-located with input filter capacitor and fuse. Use Value: Enables uninterrupted image capture by preventing reset or brownout of image sensor and ISP during road-induced electrical disturbances. |
Use Scenario: Guards infotainment head unit main power input against load dump and jump-start surges in premium vehicle architectures with centralized power distribution. IC Role / Device Role / Timing Role: High-power TVS integrated into front-end protection circuit, rated for continuous 6W dissipation at elevated case temperatures. Use Value: Eliminates field failures due to thermal runaway during repeated surge exposure, extending product lifetime beyond 15-year vehicle service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-Q | Lower peak power (400W), SMA package, RθJC ≈ 45°C/W | Not suitable for load dump; limited to ISO7637-2 Pulse 1/2a only | Select only for cost-sensitive non-automotive or low-energy surge environments |
| SMCJ33A-Q | Same DO-214AB package, 1500W peak power, higher clamping (64.3V @ 23.3A) | Meets ISO7637-2 but not full ISO16750-2 load dump; lower surge current capability | Use where space constraints prevent DO-218 mounting but higher power than SMAJ is required |
Compared with SMAJ33A-Q and SMCJ33A-Q, DM6W33AQ-13 provides 3× higher peak power and 3.7× lower clamping voltage per ampere, enabling robust protection in high-energy automotive load dump scenarios where thermal management and voltage margin are critical.
Availability
DM6W33AQ-13 is available at Aetrix Electronics and suitable for automotive ECU power protection, body control modules, ADAS camera supplies, and infotainment head unit inputs requiring stable component supply with AEC-Q200 compliance and long-term lifecycle support.
Supply support for DM6W33AQ-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 components for automotive, industrial, and computing markets with ISO/TS 16949-certified operations.
DM6W33AQ-13 belongs to Diodes' automotive-qualified TVS portfolio, engineered specifically for ISO16750-2 load dump and ISO7637-2 surge immunity in 12V/24V vehicle electrical systems.
FAQ
What is the polarity configuration of DM6W33AQ-13?
The DM6W33AQ-13 is a unidirectional TVS diode with anode connected to the heatsink tab and cathode marked by a bar on the top surface. This configuration requires the anode to be tied to the protected circuit's ground or chassis reference, while the cathode connects to the line being protected - ensuring correct avalanche conduction during positive transients on the rail.
Does DM6W33AQ-13 meet AEC-Q200 requirements?
Yes, DM6W33AQ-13 is explicitly qualified to AEC-Q200 Rev H standards, including temperature cycling, humidity bias, mechanical shock, and accelerated life testing. The "Q" suffix denotes automotive qualification, and Diodes' official product definition page confirms qualification status under their AEC-Q200 program with full test reports available upon request.
How does the DO-218 package improve thermal performance over SMA or SMC packages?
The DO-218 (Type E) package features a large metal heatsink tab that provides direct thermal conduction to PCB copper, achieving 1.0°C/W junction-to-case resistance - over 40× better than SMAJ33A-Q (≈45°C/W). This enables sustained 6W power dissipation and rapid heat removal during repetitive 4600W surges, critical for under-hood automotive reliability.
Can DM6W33AQ-13 replace DM6W33A in existing designs?
DM6W33AQ-13 is the automotive-qualified version of DM6W33A, sharing identical electrical specs, DO-218 package, and pinout. The "Q" variant adds AEC-Q200 qualification, extended temperature validation, and enhanced process controls - making it a drop-in replacement where automotive reliability and traceability are required, with no layout or schematic changes needed.
DM6W33AQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- -
- Supplier Device Package:
- -
DM6W33AQ-13 FAQ
1.How can I place an order for DM6W33AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W33AQ-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 DM6W33AQ-13 reliable?
The price and inventory of DM6W33AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W33AQ-13 is usually 5 days.
3.What payment methods are accepted for DM6W33AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W33AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W33AQ-13?
DM6W33AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W33AQ-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 DM6W33AQ-13?
For technical support, including DM6W33AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W33AQ-13 requirements.
6.How does Aetrix verify that DM6W33AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM6W33AQ-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 DM6W33AQ-13 meets industry standards.
7.What is the process for return or replacement of DM6W33AQ-13?
All DM6W33AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W33AQ-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 DM6W33AQ-13 part is unused and in its original packaging.
Return procedure for DM6W33AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W33AQ-13 Tags
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