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Diodes Incorporated DM6W26A-13
- Part No.:
- DM6W26A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W26A-13.pdf
- Description:
- TVS DIODE 26VWM 42.1VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:8,307
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Product details
Overview
DM6W26A-13 from Diodes Incorporated is a surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump and ISO7637-2 surge protection in 12V/24V systems. It delivers 4600W peak pulse power (10/1000µs), has a 26V reverse standoff voltage (VRWM), clamps at ≤42.1V @ 109A, and features DO-218 (Type E) package with heatsink-anode polarity. Used in engine control units, body control modules, and infotainment power rails.
For engineers reviewing the DM6W26A-13 datasheet, DM6W26A-13 pinout, DM6W26A-13 application, or DM6W26A-13 equivalent, key selection criteria include clamping voltage margin vs. system rail tolerance, thermal resistance (RθJC = 1.0°C/W), ISO16750-2 compliance, and DO-218 mechanical layout compatibility with high-current PCB traces.
Technical Context
This unidirectional TVS diode operates as a shunt-clamping device triggered by overvoltage transients exceeding its 26V VRWM. Its silicon avalanche structure enables sub-nanosecond response to load dump events (ISO16750-2) and repetitive surges per ISO7637-2 Pulse 1/2a/3a/3b.
Thermal design relies on low junction-to-case resistance (1.0°C/W) and direct heatsink mounting via the anode tab. The device sustains 600A non-repetitive forward surge current (8.3ms half-sine) and maintains <10µA leakage at VRWM up to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 4600W (10/1000µs waveform): handles automotive load dump without failure |
| Reverse Standoff Voltage | 26V: sets minimum operating rail margin before clamping activation |
| Clamping Voltage | ≤42.1V @ 109A: limits downstream IC stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0°C/W: enables efficient heat transfer to heatsink for sustained surge duty |
| Operating Temperature Range | –55°C to +175°C: supports under-hood placement in engine compartments |
| Surge Standards Compliance | ISO16750-2 & ISO7637-2: certified for automotive-grade transient immunity |
Pinout & Package
Package: DO-218 (Type E), surface-mount, anode-heatsink configuration. Molded plastic body (UL 94V-0), matte tin-plated terminals, polarity indicated by cathode bar marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current return path & thermal interface | Must be soldered to large copper pour or external heatsink for RθJC = 1.0°C/W performance |
| Cathode (Top Surface Pad) | Transient current entry point | Connected to protected line; clamping occurs when voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| High Surge Current Capability | 600A IFSM (8.3ms half-sine): withstands repeated cranking-induced surges |
| Low Clamping Ratio | VC/VRWM = 1.62: tight voltage margin preserves headroom for 3.3V/5V logic supplies |
| Automotive Qualification | AEC-Q200 qualified: validated for vibration, thermal cycling, and humidity reliability |
| Green Construction | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb): meets automotive environmental mandates |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Supply |
|---|---|
Use Scenario: Protects 12V input rail against alternator load dump spikes during battery disconnect. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed upstream of DC-DC converter input. Use Value: Limits transient voltage to ≤42.1V, preventing damage to 45V-rated input capacitors and controller ICs. |
Use Scenario: Shields 5V CAN transceiver supply from coupled surges on vehicle chassis ground. IC Role / Device Role / Timing Role: Low-capacitance (typ. 100pF @ 1V) clamping device on VCC line. Use Value: Maintains signal integrity by clamping without distorting CAN differential waveforms. |
| Infotainment System USB Power Rail | ADAS Camera Module Power Input |
Use Scenario: Guards 5V USB charging circuitry from ignition-switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS between USB VBUS and ground, adjacent to connector. Use Value: Responds in <1ns to clamp 100V+ spikes, preserving USB PHY and port controller. |
Use Scenario: Secures 12V input to image sensor power management IC against ESD and load dump. IC Role / Device Role / Timing Role: Primary surge suppression before buck regulator input filter. Use Value: Enables operation at +105°C ambient with derated power per Fig.1 curve. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ26A | Lower PPK (400W), SMA package, RθJC = 40°C/W | Not suitable for load dump; limited to ISO7637-2 Pulse 1/3 only | Select when space-constrained and surge energy <50mJ |
| SMCJ26A | Same PPK (3000W), SMC package, RθJC = 2.5°C/W | Lacks AEC-Q200 qualification; lower thermal efficiency than DO-218 | Use for industrial non-automotive designs requiring cost-optimized surge rating |
Compared with SMAJ26A and SMCJ26A, DM6W26A-13 provides 54% higher peak power, 2.5× better thermal resistance, and automotive qualification-making it the sole choice for load dump protection where junction temperature rise must stay below 100°C during 100ms surges.
Availability
DM6W26A-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera modules requiring stable component supply across automotive production lifecycles.
Supply support for DM6W26A-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 company specializing in discrete, analog, and mixed-signal solutions for automotive, industrial, and consumer markets.
DM6W26A-13 belongs to the DM6WxxA series of high-power automotive TVS diodes engineered specifically for ISO16750-2 load dump and ISO7637-2 transient immunity in harsh-temperature vehicle environments.
FAQ
What is the maximum clamping voltage for DM6W26A-13 at rated peak current?
The maximum clamping voltage (VC) is 42.1V when subjected to a 10/1000µs waveform at 109A peak pulse current, measured per JEDEC test conditions. This value ensures downstream 45V-rated components remain within safe operating limits during automotive load dump events.
How does the DO-218 package improve thermal performance over standard SMC packages?
The DO-218 (Type E) package uses a metal heatsink tab as the anode terminal, achieving RθJC = 1.0°C/W-2.5× lower than typical SMC packages. This allows direct thermal coupling to PCB copper or external heatsinks, critical for sustaining multiple load dump events without thermal runaway.
Is DM6W26A-13 qualified for automotive use beyond AEC-Q200?
Yes-it is explicitly designed and tested to meet ISO16750-2 (load dump) and ISO7637-2 (Pulse 1, 2a, 3a, 3b) requirements. The datasheet confirms compliance with these standards, and the "Q" variant (DM6W26AQ) is available for full AEC-Q101 stress testing if required.
Can DM6W26A-13 be used in bidirectional configurations?
No-it is a unidirectional TVS diode with anode-heatsink polarity. For bidirectional protection, two devices must be connected in series opposing configuration, or a dedicated bidirectional part like DM6W26CA-13 should be selected per the same datasheet family.
DM6W26A-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
DM6W26A-13 FAQ
1.How can I place an order for DM6W26A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W26A-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 DM6W26A-13 reliable?
The price and inventory of DM6W26A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W26A-13 is usually 5 days.
3.What payment methods are accepted for DM6W26A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W26A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W26A-13?
DM6W26A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W26A-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 DM6W26A-13?
For technical support, including DM6W26A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W26A-13 requirements.
6.How does Aetrix verify that DM6W26A-13 is sourced from the original manufacturer or authorized distributors?
All DM6W26A-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 DM6W26A-13 meets industry standards.
7.What is the process for return or replacement of DM6W26A-13?
All DM6W26A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W26A-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 DM6W26A-13 part is unused and in its original packaging.
Return procedure for DM6W26A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W26A-13 Tags
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