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Diodes Incorporated DM6W12AQ-13
- Part No.:
- DM6W12AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
DM6W12AQ-13.pdf
- Description:
- TVS DO-218
- Quantity:
- Payment:
- Shipping:
Inventory:3,562
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Product details
Overview
DM6W12AQ-13 from Diodes Incorporated is a 4600W surface-mount transient voltage suppressor (TVS) diode in DO-218 (Type E) package, designed for automotive load dump and ISO7637-2 surge protection. It features 12V reverse standoff voltage (VRWM), 13.3–14.7V breakdown voltage (VBR), 19.9V clamping voltage (VC) at 231A peak pulse current, and operates from –55°C to +175°C - deployed in engine control units and battery management systems.
For engineers reviewing the DM6W12AQ-13 datasheet, DM6W12AQ-13 pinout, DM6W12AQ-13 application, or DM6W12AQ-13 equivalent, key selection criteria include clamping voltage margin vs. system rail, thermal resistance (RθJC = 1.0°C/W), ISO16750-2 compliance, and anode-heatsink polarity configuration for PCB thermal layout.
Technical Context
This unidirectional TVS diode uses silicon avalanche technology to clamp high-energy transients with sub-nanosecond response. Its DO-218 package integrates a heatsink-anode structure enabling direct thermal coupling to PCB copper, supporting 600A non-repetitive forward surge (IFSM) and 4600W peak pulse power (10/1000µs waveform).
It meets automotive-grade reliability per AEC-Q200-equivalent qualification and complies with ISO 10605 (ESD), ISO 7637-2 (Pulse 1/2a/3a/3b), and ISO 16750-2 (load dump). Reverse leakage stays ≤10µA at VRWM and ≤150µA at TJ = +175°C, ensuring low standby power loss in 12V vehicle networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - Maximum continuous reverse operating voltage before clamping begins; matches nominal 12V automotive battery systems. |
| VBR @ IT=5mA | 13.3–14.7 V - Breakdown threshold range; ensures reliable turn-on before downstream IC damage at defined test current. |
| VC @ IPP=231A | 19.9 V - Clamped voltage during 10/1000µs surge; provides safe overvoltage margin for 16V-rated microcontrollers and sensors. |
| PPK (10/1000µs) | 4600 W - Peak pulse power handling; sustains ISO 16750-2 load dump surges up to 35V × 131A without failure. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; enables efficient heat transfer to heatsinked PCB copper, critical for sustained surge duty. |
| TJ Range | –55°C to +175°C - Operating junction temperature range; supports under-hood deployment in modern ICE and hybrid powertrain ECUs. |
Pinout & Package
DO-218 (Type E) surface-mount package with integrated heatsink-anode terminal. Anode connects directly to case/heatsink; cathode marked by bar on top surface. Requires thermally enhanced PCB pad layout per Diodes' recommended footprint (G = 3.30 mm, X = 3.50 mm, Y1 = 9.50 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink) | Current return path & thermal interface | Electrically and thermally connected to metal case; must be soldered to large copper pour for thermal dissipation and low-inductance grounding. |
| Cathode | Transient voltage clamping node | Connected to protected line (e.g., LIN bus, sensor supply); clamps to 19.9V when surge exceeds 13.3V breakdown threshold. |
Key Features
| Feature | Design Value |
|---|---|
| 4600W peak pulse power | Handles full ISO 16750-2 load dump events (up to 35V, 131A, 400ms) without degradation when properly heatsinked. |
| Low RθJC = 1.0°C/W | Enables >80% of rated power dissipation at TC = +25°C; reduces need for external heatsinks in space-constrained ECU modules. |
| Automotive-qualified reliability | Qualified to AEC-Q200-equivalent stress levels; validated for 1000h HTOL at +175°C and 1000 cycles temperature cycling (–55°C/+175°C). |
| RoHS 3 & Halogen-free | Meets EU Directive 2015/863/EU; Br+Cl <1500ppm, Sb <1000ppm - compliant for Tier-1 automotive supply chain traceability. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) LIN Bus Protection |
|---|---|
Use Scenario: Protects 12V main power rail against alternator load dump surges during battery disconnect events. IC Role / Device Role: Primary clamping device placed upstream of DC-DC converters and MCU power supplies. Use Value: Limits transient voltage to 19.9V, preventing latch-up or gate oxide rupture in 3.3V/5V logic powered from buck regulators. |
Use Scenario: Shields LIN transceiver I/O lines from coupled transients induced by nearby high-current switching (e.g., window lift motors). IC Role / Device Role: Unidirectional TVS placed between LIN bus and transceiver cathode pin. Use Value: Clamps induced spikes below 20V while maintaining <10µA leakage at 12V, preserving LIN signal integrity and sleep-mode current budget. |
| Advanced Driver Assistance Systems (ADAS) Camera Power | Electric Power Steering (EPS) Motor Driver Supply |
Use Scenario: Guards image sensor and ISP power rails in front-facing cameras exposed to ignition noise and load dump coupling via shared harnesses. IC Role / Device Role: Secondary surge suppression stage after primary fuse and LC filter. Use Value: Withstands 231A peak pulse without parametric shift, ensuring camera uptime during cold-cranking and jump-start conditions. |
Use Scenario: Protects H-bridge gate driver ICs and current sense amplifiers from inductive kickback during EPS motor commutation. IC Role / Device Role: High-power TVS mounted directly on motor driver PCB near power input terminals. Use Value: 600A IFSM rating absorbs repetitive 8.3ms half-sine surges from motor back-EMF, extending gate driver lifetime in stop-start cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-Q | Lower PPK = 400W; SMA package; RθJC ≈ 35°C/W; no heatsink-anode structure. | Limited to lower-energy ISO7637-2 Pulse 1/2a; unsuitable for load dump (ISO16750-2). | Select only for cost-sensitive non-load-dump applications where board space is constrained and thermal mass is limited. |
| SMCJ12A-Q | PPK = 1500W; SMC package; RθJC ≈ 10°C/W; anode-heatsink but smaller thermal interface than DO-218. | Meets ISO7637-2 fully but fails ISO16750-2 load dump due to insufficient energy absorption. | Use where moderate surge immunity is required and DO-218 footprint is unavailable; verify thermal derating at +125°C ambient. |
Compared with SMAJ12A-Q and SMCJ12A-Q, DM6W12AQ-13 delivers 3× higher peak power and 10× lower thermal resistance - enabling single-device load dump protection without parallel devices or forced-air cooling in compact ECU designs.
Availability
DM6W12AQ-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera power systems, and electric power steering modules requiring stable component supply across automotive production lifecycles.
Supply support for DM6W12AQ-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, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the U.S.
DM6W12AQ-13 belongs to Diodes' automotive-qualified TVS portfolio targeting ISO16750-2 and ISO7637-2 compliance; engineered specifically for under-hood power rail protection in 12V/48V hybrid and conventional vehicles.
FAQ
What is the polarity configuration of DM6W12AQ-13?
DM6W12AQ-13 is a unidirectional TVS diode with anode connected to the heatsink (case) and cathode marked by a bar on the top surface. This configuration requires the anode to be tied to ground or chassis potential, and the cathode connected to the protected line - enabling clamping only during positive transients relative to ground.
How does DM6W12AQ-13 differ from the non-Q version DM6W12A-13?
DM6W12AQ-13 is the automotive-qualified variant, tested per AEC-Q200-equivalent stress conditions including extended HTOL (1000h at +175°C), temperature cycling, and humidity testing. The standard DM6W12A-13 lacks this qualification and is intended for commercial/industrial use only.
Can DM6W12AQ-13 be used in 48V mild-hybrid systems?
No - DM6W12AQ-13 is specified for 12V nominal systems (VRWM = 12V). For 48V architectures, Diodes offers the DM6W43AQ-13 (VRWM = 43V), which provides matching 4600W PPK, DO-218 packaging, and identical automotive qualification.
What is the recommended PCB layout for optimal thermal performance?
Mount DM6W12AQ-13 using Diodes' recommended DO-218 (Type E) pad layout: 3.50 mm × 9.50 mm anode pad with ≥2 oz copper and multiple thermal vias to inner-layer ground planes. Avoid solder mask over the anode pad to maximize thermal conduction and minimize RθJA.
DM6W12AQ-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:
- -
DM6W12AQ-13 FAQ
1.How can I place an order for DM6W12AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W12AQ-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 DM6W12AQ-13 reliable?
The price and inventory of DM6W12AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W12AQ-13 is usually 5 days.
3.What payment methods are accepted for DM6W12AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W12AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W12AQ-13?
DM6W12AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W12AQ-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 DM6W12AQ-13?
For technical support, including DM6W12AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W12AQ-13 requirements.
6.How does Aetrix verify that DM6W12AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM6W12AQ-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 DM6W12AQ-13 meets industry standards.
7.What is the process for return or replacement of DM6W12AQ-13?
All DM6W12AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W12AQ-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 DM6W12AQ-13 part is unused and in its original packaging.
Return procedure for DM6W12AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W12AQ-13 Tags
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