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Diodes Incorporated DM6W26AQ-13
- Part No.:
- DM6W26AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W26AQ-13.pdf
- Description:
- TVS DIODE 26VWM 42.1VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:7,840
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Product details
Overview
DM6W26AQ-13 from Diodes Incorporated is a DO-218 (Type E) surface-mount transient voltage suppressor (TVS) diode designed for automotive load-dump and surge protection. It delivers 4600W peak pulse power at 10/1000µs, has a 26V reverse standoff voltage (VRWM), clamps to 42.1V at 119A peak pulse current, and features an anode-heatsink polarity configuration. It is AEC-Q101 qualified and compliant with ISO 16750-2 (Pulse A/B) and ISO 7637-2 (Pulse 1, 2a, 3a, 3b) for 12V/24V automotive power systems.
For engineers reviewing the DM6W26AQ-13 datasheet, DM6W26AQ-13 pinout, DM6W26AQ-13 application, or DM6W26AQ-13 equivalent, this page provides verified electrical parameters, thermal derating behavior, ISO-compliant surge capability, heatsink-integrated anode layout, and AEC-Q101 qualification status - all critical for under-hood power rail protection design.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp high-energy transients, with a low 1.0°C/W junction-to-case thermal resistance enabling efficient heat transfer to the PCB heatsink pad. Its 26V VRWM and 28.9–31.9V VBR range ensure reliable standoff during normal 12V system operation while triggering fast under load-dump conditions.
The device sustains 600A non-repetitive forward surge current (8.3ms half-sine) and maintains <10µA reverse leakage at VRWM up to +175°C, supporting robust operation in engine compartment environments. Its DO-218 package integrates the anode directly into the heatsink tab, eliminating separate thermal vias and simplifying high-current PCB layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000µs) | 4600W - Clamps 12V automotive load-dump surges without failure |
| Reverse Standoff Voltage (VRWM) | 26V - Stable blocking during nominal 12V battery operation |
| Breakdown Voltage (VBR) | 28.9–31.9V @ 5mA - Defined avalanche onset for predictable clamping |
| Clamping Voltage (VC) | 42.1V @ 119A - Limits downstream IC voltage stress during ISO 16750-2 Pulse 5a |
| Junction-to-Case Thermal Resistance | 1.0°C/W - Enables direct heatsink coupling for sustained 6W average power dissipation |
| Operating Temperature Range | −55°C to +175°C - Validated for under-hood placement near engines and alternators |
| AEC-Q101 Qualified | Yes - Certified for automotive electronics per stress test requirements |
Pinout & Package
Package: DO-218 (Type E), molded plastic with UL 94V-0 rating; anode connected to heatsink tab, cathode on leaded terminal; polarity marked by bar symbol on cathode side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive terminal / thermal path | Directly mounts to PCB copper pour for low-impedance heat conduction and current return |
| Cathode (Lead) | Negative terminal / surge current entry | Connects to protected line (e.g., alternator output); clamps to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 4600W Peak Pulse Power | Handles full ISO 16750-2 Load Dump (Pulse 5a) without degradation |
| Low Thermal Resistance (1.0°C/W) | Enables >6W steady-state dissipation with minimal case temperature rise |
| AEC-Q101 Qualification | Validated for automotive use including temperature cycling, HTRB, and surge lifetime |
| RoHS & Halogen-Free Compliance | Meets EU RoHS 3 and Diodes' "Green" definition (<900ppm Br/Cl, <1000ppm Sb) |
| ISO 7637-2 & ISO 16750-2 Compliance | Tested to Pulse 1, 2a, 3a, 3b (7637-2) and Pulse A/B (16750-2) waveforms |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
|
Use Scenario: Protects microcontroller power supply against alternator load-dump transients during battery disconnection. IC Role / Device Role / Timing Role: Primary clamping device on 12V main input, placed upstream of DC-DC converter. Use Value: Limits voltage to ≤42.1V during 120V/350ms ISO 16750-2 Pulse 5a, preventing damage to 40V-rated input capacitors and regulators. |
Use Scenario: Shields LIN bus transceivers and power management ICs from battery line surges during jump-start or relay switching. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on fused 12V distribution rail feeding multiple submodules. Use Value: Maintains <10µA leakage at 26V VRWM across −40°C to +125°C ambient, ensuring low quiescent current in always-on BCM states. |
| Advanced Driver Assistance Systems (ADAS) Camera Power | Electric Power Steering (EPS) Motor Driver Supply |
|
Use Scenario: Guards image sensor and ISP power rails against ignition-induced spikes and ESD events in front-end camera modules. IC Role / Device Role / Timing Role: Secondary TVS stage after primary fuse and LC filter, optimized for fast response to <100ns transients. Use Value: Achieves 42.1V clamping at 119A with <1ns response time, preserving signal integrity in 1.8V/3.3V digital video interfaces. |
Use Scenario: Safeguards gate drivers and current sense amplifiers in 24V EPS H-bridge power stages during motor commutation surges. IC Role / Device Role / Timing Role: High-energy TVS mounted directly on motor driver PCB heatsink, co-located with power MOSFETs. Use Value: Withstands 600A 8.3ms forward surge (per IFSM spec), surviving repeated motor stall events without parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ26A-Q | DO-214AC package; 400W PPK; 26V VRWM; 42.2V VC @ 92A | Limited to lower-energy ISO 7637-2 pulses; not rated for ISO 16750-2 load dump | Select when space-constrained layouts require smaller footprint and surge energy is below 1000W |
| SMCJ26A-Q | DO-214AB package; 1500W PPK; 26V VRWM; 42.5V VC @ 353A | Lower peak power than DM6W26AQ-13; insufficient for full 12V load-dump compliance | Use where cost sensitivity outweighs full AEC-Q101 load-dump coverage and board area permits larger DO-214AB |
Compared with SMAJ26A-Q and SMCJ26A-Q, DM6W26AQ-13 uniquely delivers 4600W peak power in DO-218 with AEC-Q101 qualification and ISO 16750-2 Pulse 5a compliance - making it the only option among the three validated for under-hood alternator load-dump protection in production automotive ECUs.
Availability
DM6W26AQ-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera power supplies, and electric power steering systems requiring stable component supply and full automotive qualification.
Supply support for DM6W26AQ-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.
The DM6WxxAQ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically for ISO 16750-2 and ISO 7637-2 compliance in 12V/24V vehicle power networks.
FAQ
What is the maximum clamping voltage of DM6W26AQ-13 under standard test conditions?
The maximum clamping voltage (VC) is 42.1V at 119A peak pulse current using a 10/1000µs waveform, per the DS41001 Rev. 7 datasheet. This value is measured with the device mounted on a standard FR-4 PCB with 1-inch² copper heatsink area, and remains stable across −55°C to +175°C junction temperature.
Is DM6W26AQ-13 compatible with lead-free reflow soldering processes?
Yes - DM6W26AQ-13 features matte tin-plated terminals and is rated for lead-free reflow per JEDEC J-STD-020, with a peak temperature tolerance of 260°C for up to 30 seconds. Its DO-218 package meets IPC/JEDEC J-STD-020 moisture sensitivity level 1, eliminating bake requirements prior to assembly.
How does the anode-heatsink configuration affect PCB layout?
The anode is electrically and thermally connected to the large metal heatsink tab, requiring direct connection to a dedicated PCB copper pour (≥1 inch² recommended). This eliminates need for thermal vias but mandates isolation of the cathode pad and routing of the protected line to the cathode terminal only.
Does DM6W26AQ-13 meet both ISO 7637-2 and ISO 16750-2 standards?
Yes - Diodes' datasheet explicitly confirms compliance with ISO 7637-2 (Pulse 1, 2a, 3a, 3b) and ISO 16750-2 (Pulse A and Pulse B), including full validation for 12V load-dump (Pulse 5a) per ISO 16750-2 Annex D. Test reports are available upon request for PPAP submission.
DM6W26AQ-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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 109A
- 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
DM6W26AQ-13 FAQ
1.How can I place an order for DM6W26AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W26AQ-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 DM6W26AQ-13 reliable?
The price and inventory of DM6W26AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W26AQ-13 is usually 5 days.
3.What payment methods are accepted for DM6W26AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W26AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W26AQ-13?
DM6W26AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W26AQ-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 DM6W26AQ-13?
For technical support, including DM6W26AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W26AQ-13 requirements.
6.How does Aetrix verify that DM6W26AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM6W26AQ-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 DM6W26AQ-13 meets industry standards.
7.What is the process for return or replacement of DM6W26AQ-13?
All DM6W26AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W26AQ-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 DM6W26AQ-13 part is unused and in its original packaging.
Return procedure for DM6W26AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W26AQ-13 Tags
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