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Diodes Incorporated DM6W15A-13
- Part No.:
- DM6W15A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W15A-13.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:7,279
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Product details
Overview
DM6W15A-13 from Diodes Incorporated is a surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump and ISO 7637-2 surge protection in high-power 12V/24V systems. It delivers 4600W peak pulse power (10/1000µs), clamps at 24.4V max under 189A peak current, and features a 15V reverse standoff voltage with low thermal resistance (1.0°C/W) for robust thermal management in engine control units and body electronics.
For engineers reviewing the DM6W15A-13 datasheet, DM6W15A-13 pinout, DM6W15A-13 application, or DM6W15A-13 equivalent, this TVS diode supports critical design verification for ISO16750-2 compliance, high-temperature stability up to +175°C, and lead-free, halogen-free "Green" construction per RoHS 3 and AEC-Q reliability standards.
Technical Context
This unidirectional TVS diode operates in avalanche breakdown mode to clamp transient overvoltages before they damage downstream circuitry. Its DO-218 (Type E) package enables high-current handling via direct heatsink mounting (anode-side thermal path), with junction-to-case thermal resistance of 1.0°C/W ensuring effective power dissipation during 10ms exponential load dump events.
The device meets stringent automotive surge immunity requirements: it withstands ISO 7637-2 Pulse 1, 2a, 3a, and 3b waveforms and complies with ISO 16750-2 load dump specifications up to 35V test voltage. Reverse leakage remains ≤10µA at VRWM (15V) and ≤150µA at TJ = +175°C, supporting stable operation across extended temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 4600W (10/1000µs waveform) - sustains high-energy transients without failure in automotive load dump scenarios |
| Reverse Standoff Voltage | 15V - sets minimum system operating voltage threshold before clamping activation |
| Max Clamping Voltage | 24.4V @ 189A - limits voltage seen by protected ICs to safe levels during worst-case surges |
| Junction-to-Case Thermal Resistance | 1.0°C/W - enables efficient heat transfer to PCB/heatsink, critical for sustained 6W average power dissipation |
| Operating Temperature Range | −55°C to +175°C - supports under-hood deployment in engine control modules and battery management systems |
| Surge Standards Compliance | ISO 7637-2 (Pulse 1/2a/3a/3b) & ISO 16750-2 - validated for automotive-grade surge immunity testing |
| RoHS & Green Status | Lead-free, halogen-free (<900ppm Br/Cl, <1000ppm Sb), RoHS 3 compliant - meets global environmental and supply chain requirements |
Pinout & Package
Package: DO-218 (Type E), surface-mount, anode-heatsink configuration. Polarity indicated by cathode bar marking; anode connects to heatsink tab for optimal thermal conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current return path & thermal interface | Directly mounted to PCB copper pour or external heatsink; primary thermal conduction path (RθJC = 1.0°C/W) |
| Cathode (Top Lead) | Transient voltage sensing & clamping node | Connected to protected line (e.g., 12V rail); initiates avalanche conduction when VRWM exceeded |
Key Features
| Feature | Design Value |
|---|---|
| High peak pulse power rating | 4600W capability ensures survival against severe load dump events without degradation |
| Low clamping voltage ratio | VC/VRWM = 1.63 enables tighter voltage margin for 15V-rated downstream components |
| Automotive-qualified reliability | AEC-Q qualified per JEDEC standards - validated for long-term operation in harsh automotive environments |
| Thermally optimized package | DO-218 (Type E) with anode-heatsink design delivers 6W steady-state power dissipation at TC = +25°C |
| Low high-temp leakage | ≤150µA at TJ = +175°C maintains system integrity during prolonged under-hood thermal stress |
Applications
| Engine Control Unit (ECU) Power Input Protection | Body Control Module (BCM) CAN Bus Power Rail |
|---|---|
Use Scenario: Protects 12V input stage of engine control units against alternator load dump surges up to 35V per ISO16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed upstream of DC/DC converters and microcontrollers. Use Value: Limits transient voltage to 24.4V during 189A pulses, preventing latch-up or gate oxide damage in 3.3V/5V logic supplies. |
Use Scenario: Shields 12V power rail feeding CAN transceivers and LIN nodes from ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive coupling). IC Role / Device Role / Timing Role: Fast-response surge suppressor with <1ns response time, placed adjacent to connector entry point. Use Value: Maintains CAN signal integrity by preventing rail collapse or transceiver reset during repetitive 100V/50ns transients. |
| Electric Power Steering (EPS) Motor Driver Supply | Battery Management System (BMS) Front-End Protection |
Use Scenario: Guards high-current 12V/24V supply to EPS motor drivers against cranking-induced surges and alternator regulation faults. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power bus, thermally coupled to aluminum heatsink. Use Value: Handles 600A IFSM (8.3ms half-sine) without bond wire fusing, ensuring fail-safe operation during steering assist demand spikes. |
Use Scenario: Protects BMS front-end analog monitoring circuits (e.g., current sense amplifiers, voltage dividers) from battery terminal transients during jump-start or disconnect events. IC Role / Device Role / Timing Role: Low-capacitance (typ. 3600pF @ 0V) TVS minimizing signal distortion on precision voltage sensing lines. Use Value: Enables accurate cell voltage measurement during surge events due to stable leakage (<10µA @ 15V) and minimal parasitic loading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Lower peak power (400W), SMA package, RθJC ≈ 50°C/W | Suitable only for low-energy transients (e.g., ESD), not load dump | Select when cost sensitivity outweighs surge severity; avoid for ISO16750-2 compliance |
| SMCJ15A | Same 15V VRWM, but 1500W PPK, SMC package, RθJC ≈ 10°C/W | Meets ISO 7637-2 Pulse 3 only; insufficient for load dump (Pulse 5a) | Acceptable for non-load-dump automotive subsystems where space constraints preclude DO-218 |
Compared with SMAJ15A and SMCJ15A, DM6W15A-13 provides 3× higher peak power and 10× lower thermal resistance, enabling reliable protection in full-scope automotive power systems where sustained energy dissipation and thermal stability are mandatory.
Availability
DM6W15A-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, electric power steering systems, and battery management systems requiring stable component supply across automotive production lifecycles.
Supply support for DM6W15A-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 protection, power management, and signal integrity solutions for automotive, industrial, and computing markets.
This device belongs to Diodes' DM6WxxA automotive TVS family, engineered specifically for ISO 7637-2 and ISO 16750-2 compliance in 12V/24V vehicle electrical systems, with emphasis on thermal robustness and AEC-Q qualification.
FAQ
What is the maximum clamping voltage of DM6W15A-13 at its rated peak pulse current?
The maximum clamping voltage (VC) is 24.4V at 189A peak pulse current (10/1000µs waveform), measured per DS40427 Rev. 6–2. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range (−55°C to +175°C).
How does the DO-218 (Type E) package improve thermal performance compared to standard SMC packages?
The DO-218 (Type E) package uses the anode as the primary heatsink interface, achieving a junction-to-case thermal resistance of 1.0°C/W-10× lower than typical SMC packages (~10°C/W). This allows continuous 6W power dissipation at TC = +25°C and supports reliable operation during repeated load dump events without thermal runaway.
Is DM6W15A-13 qualified for automotive applications, and what standards does it meet?
Yes-DM6W15A-13 is AEC-Q qualified per JEDEC standards and explicitly designed for automotive use. It meets ISO 7637-2 (Pulse 1, 2a, 3a, 3b) and ISO 16750-2 (load dump) requirements. The "Q" variant (DM6W15AQ-13) is separately documented for full automotive qualification, but this part shares identical electrical and thermal specs and is widely deployed in production ECUs.
Can DM6W15A-13 be used in 24V commercial vehicle systems, and what derating applies?
Yes-its 15V VRWM and 24.4V VC make it suitable for 24V nominal systems where load dump peaks reach 35V. Derating is applied per Figure 1: at TC = +100°C, PM(AV) reduces to ~3.6W. For 24V applications, ensure heatsinking maintains TC ≤ +85°C to sustain ≥4.5W average dissipation during repetitive surges.
DM6W15A-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 189A
- 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
DM6W15A-13 FAQ
1.How can I place an order for DM6W15A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W15A-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 DM6W15A-13 reliable?
The price and inventory of DM6W15A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W15A-13 is usually 5 days.
3.What payment methods are accepted for DM6W15A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W15A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W15A-13?
DM6W15A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W15A-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 DM6W15A-13?
For technical support, including DM6W15A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W15A-13 requirements.
6.How does Aetrix verify that DM6W15A-13 is sourced from the original manufacturer or authorized distributors?
All DM6W15A-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 DM6W15A-13 meets industry standards.
7.What is the process for return or replacement of DM6W15A-13?
All DM6W15A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W15A-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 DM6W15A-13 part is unused and in its original packaging.
Return procedure for DM6W15A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W15A-13 Tags
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