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Diodes Incorporated DM6W11A-13
- Part No.:
- DM6W11A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W11A-13.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:5,098
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Product details
Overview
DM6W11A-13 from Diodes Incorporated is a 4600W surface-mount transient voltage suppressor (TVS) diode in DO-218 package, designed for automotive load dump and ISO7637-2 surge protection. It features 11V reverse standoff voltage, 18.2V max clamping voltage at 253A peak pulse current, and operates from −55°C to +175°C with 1.0°C/W junction-to-case thermal resistance.
For engineers reviewing the DM6W11A-13 datasheet, DM6W11A-13 pinout, DM6W11A-13 application, or DM6W11A-13 equivalent, this part is selected for high-energy transient suppression in 12V automotive power rails where low clamping voltage, high IFSM (600A), and AEC-Q–aligned reliability are critical design requirements.
Technical Context
This unidirectional TVS diode uses an avalanche breakdown mechanism to clamp transients above its 12.2V minimum breakdown voltage. Its DO-218 package enables direct heatsink mounting via the anode terminal, supporting high-power dissipation with low thermal resistance (1.0°C/W).
It meets ISO16750-2 load dump (10ms exponential waveform) and ISO7637-2 Pulse 1/2a/3a/3b surge immunity requirements. The device sustains 6W average power at TC = +25°C and derates linearly above that temperature per the published power derating curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 4600W (10/1000µs waveform) - handles severe automotive load dump surges without failure |
| Reverse Standoff Voltage | 11V - blocks normal 12V system operation while remaining fully inactive below surge threshold |
| Max Clamping Voltage | 18.2V @ 253A - limits downstream IC voltage stress during worst-case transient events |
| Peak Forward Surge Current | 600A (8.3ms half-sine) - withstands repetitive battery disconnection surges in engine control units |
| Junction-to-Case Thermal Resistance | 1.0°C/W - enables efficient heat transfer to PCB copper or external heatsink for sustained power handling |
| Operating Temperature Range | −55°C to +175°C - qualified for under-hood automotive environments including powertrain and body control modules |
| RoHS & Halogen-Free | Lead-free, RoHS 3 compliant, <900ppm Br/Cl, <1000ppm Sb - meets global automotive environmental mandates |
Pinout & Package
Package: DO-218 (Type E), surface-mount, anode-connected heatsink configuration. Polarity marked with bar (cathode) and circle (anode) on top view; heatsink tab is electrically connected to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive surge return path | Direct thermal and electrical connection to PCB ground plane or metal heatsink; must be routed for low-inductance, high-current return |
| Cathode (Top Lead) | Transient clamping node | Connected to protected line (e.g., battery rail); conducts surge current to anode when voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| 4600W Peak Pulse Power | Enables single-device protection against ISO16750-2 load dump (up to 120V, 10ms) without cascaded TVS stacking |
| Low 18.2V Clamping at 253A | Keeps protected MCU, CAN transceiver, or power management IC within safe operating voltage during surge |
| DO-218 Anode-Heatsink Construction | Reduces thermal impedance by >50% vs. SMB/SMA packages, allowing higher duty-cycle surge tolerance |
| AEC-Q–Aligned Qualification | Meets JEDEC reliability standards for automotive use - supports qualification of end-systems to AEC-Q200 |
| 150µA Max Leakage @ 175°C | Minimizes standby current drain in always-on vehicle modules (e.g., telematics, gateway ECUs) |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 12V supply input of microcontroller and analog sensor interface from alternator load dump surges during ignition cycling. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed directly at power entry point before DC-DC converter input. Use Value: Limits transient voltage to ≤18.2V, preventing latch-up or gate oxide damage in 3.3V/5V logic and ADC front-ends. |
Use Scenario: Shields LIN bus transceivers and door module power rails from ISO7637-2 Pulse 2a (inductive switch-off) and Pulse 3b (capacitive discharge). IC Role / Device Role / Timing Role: Primary overvoltage protection on 12V VBAT rail feeding local LDOs and communication ICs. Use Value: Withstands 600A surge current without degradation, ensuring long-term reliability across 15-year vehicle lifecycle. |
| Advanced Driver Assistance System (ADAS) Camera ECU | Electric Power Steering (EPS) Control Unit |
Use Scenario: Guards image sensor power supply and MIPI CSI-2 interface lines against conducted transients from adjacent high-current actuators. IC Role / Device Role / Timing Role: Secondary clamping stage after primary fuse and common-mode choke; placed near connector entry. Use Value: Low 1.0°C/W RθJC allows mounting on thermally enhanced pad, maintaining clamping performance at +125°C ambient. |
Use Scenario: Protects motor driver H-bridge gate drivers and current sense amplifiers from back-EMF spikes during steering motor commutation. IC Role / Device Role / Timing Role: High-energy TVS on main 12V rail upstream of buck converters supplying gate drivers and MCU core. Use Value: 4600W rating ensures single-device coverage of worst-case EPS motor stall + load dump combination events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A (Bourns) | Lower 600W peak power; SMA package; 1.5°C/W RθJC; 19.9V clamping @ 31.8A | Limited to lower-energy ISO7637-2 Pulse 1/3 only; not rated for full ISO16750-2 load dump | Select when space-constrained layout prohibits DO-218 and surge energy remains below 1000W |
| SMCJ11A (Littelfuse) | 3000W peak power; DO-214AB package; 22.0V clamping @ 136A; 1.5°C/W RθJC | Higher clamping voltage increases risk to 5V-tolerant interfaces; insufficient for 120V/10ms load dump | Use only if cost sensitivity outweighs clamping performance and thermal margin requirements |
Compared with SMBJ11A and SMCJ11A, DM6W11A-13 delivers 53% higher peak power and 33% lower thermal resistance - enabling robust protection in high-temperature, high-energy automotive domains where clamping voltage headroom and thermal survival are non-negotiable.
Availability
DM6W11A-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera ECUs, and electric power steering systems requiring stable component supply across extended automotive production lifecycles.
Supply support for DM6W11A-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.
DM6W11A-13 belongs to Diodes' automotive-grade TVS portfolio engineered specifically for ISO16750-2 and ISO7637-2 compliance in 12V vehicle electrical systems, with emphasis on thermal survivability and surge repeatability.
FAQ
What is the maximum clamping voltage of DM6W11A-13 at rated peak current?
The DM6W11A-13 has a maximum clamping voltage of 18.2V at 253A peak pulse current (10/1000µs waveform), measured per the test conditions specified in DS40427 Rev. 6-2. This value is guaranteed across the full operating temperature range and reflects worst-case device variation under standardized surge testing.
Can DM6W11A-13 be used in bidirectional surge protection configurations?
No - DM6W11A-13 is a unidirectional TVS diode optimized for positive-going transients on grounded systems. Its anode-heatsink construction and electrical characteristics are defined only for cathode-to-anode surge conduction. For bidirectional protection, two devices must be used in series-opposed configuration or a dedicated bidirectional part such as DM6W11CA should be selected.
How does the DO-218 package improve thermal performance over standard SMB/SMC packages?
The DO-218 (Type E) package integrates the anode directly into a large metal heatsink tab, achieving 1.0°C/W junction-to-case thermal resistance - approximately 2× better than typical SMB (2.0°C/W) or SMC (1.5°C/W) packages. This allows sustained power dissipation and faster thermal recovery between surge events in high-duty-cycle automotive applications.
Is DM6W11A-13 qualified to AEC-Q200?
DM6W11A-13 is qualified to JEDEC reliability standards referenced in AEC-Q200, including high-temperature operating life, temperature cycling, and humidity testing. While it is not explicitly listed as "AEC-Q200 certified" in the datasheet, Diodes states it meets AEC-Q–aligned qualification for high-reliability automotive use, and the automotive-grade variant DM6W11AQ-13 carries formal AEC-Q200 certification.
DM6W11A-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-218AB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 253A
- Power - Peak Pulse:
- 4600W (4.6kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218
DM6W11A-13 FAQ
1.How can I place an order for DM6W11A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W11A-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 DM6W11A-13 reliable?
The price and inventory of DM6W11A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W11A-13 is usually 5 days.
3.What payment methods are accepted for DM6W11A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W11A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W11A-13?
DM6W11A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W11A-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 DM6W11A-13?
For technical support, including DM6W11A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W11A-13 requirements.
6.How does Aetrix verify that DM6W11A-13 is sourced from the original manufacturer or authorized distributors?
All DM6W11A-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 DM6W11A-13 meets industry standards.
7.What is the process for return or replacement of DM6W11A-13?
All DM6W11A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W11A-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 DM6W11A-13 part is unused and in its original packaging.
Return procedure for DM6W11A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W11A-13 Tags
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