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Diodes Incorporated DM6W28AQ-13
- Part No.:
- DM6W28AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W28AQ-13.pdf
- Description:
- TVS DIODE 28VWM 45.4VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:7,702
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Product details
Overview
DM6W28AQ-13 from Diodes Incorporated is a 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 4600W peak pulse power (10/1000µs), 28V reverse standoff voltage (VRWM), 45.4V max clamping voltage at 101A IPP, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the DM6W28AQ-13 datasheet, DM6W28AQ-13 pinout, DM6W28AQ-13 application, or DM6W28AQ-13 equivalent, this device serves as a high-reliability, low-leakage (≤10µA @ VRWM), thermally robust (RθJC = 1.0°C/W) TVS for 12V/24V automotive power rail protection against ISO16750-2 Pulse 5a/b surges.
Technical Context
This unidirectional TVS diode operates with anode-connected heatsink polarity and delivers precise clamping performance across -55°C to +175°C junction temperature range. Its 1.0°C/W thermal resistance enables effective heat transfer to PCB copper or external heatsinks during 4600W transient events.
The device meets ISO16750-2 Pulse 5a (load dump) and ISO7637-2 Pulse 1, 2a, 3a/3b requirements. With 31.1–34.4V breakdown voltage (VBR @ 5mA) and ≤10µA reverse leakage at 28V, it ensures minimal standby power loss while maintaining fast response to sub-microsecond transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 4600W (10/1000µs waveform); sustains automotive load-dump energy without failure |
| Reverse Standoff Voltage | 28V; blocks normal 12V/24V system voltage while remaining fully inactive |
| Clamping Voltage | 45.4V @ 101A IPP; limits downstream IC voltage to safe level during surge |
| Breakdown Voltage | 31.1–34.4V @ 5mA; guarantees reliable turn-on before critical overvoltage threshold |
| Thermal Resistance | 1.0°C/W (Junction-to-Case); enables direct thermal coupling to heatsink or copper pour |
| Operating Temperature | -55°C to +175°C; qualified for engine bay and transmission control unit environments |
| AEC-Q101 Qualified | Yes; validated for automotive electronics per stress test requirements |
Pinout & Package
Package: DO-218 (Type E), surface-mount, molded plastic (UL 94V-0), heatsink tab is anode. Weight: 2.74g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive terminal / thermal path | Must be soldered to large copper area or external heatsink for thermal management |
| Cathode (Bar-marked lead) | Negative terminal / surge current sink | Connected to protected line; carries full transient current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 4600W Peak Pulse Power | Handles ISO16750-2 load-dump surges up to 120V/350ms without degradation |
| Low Thermal Resistance (1.0°C/W) | Enables >90% of surge energy to dissipate via case, reducing junction temperature rise |
| ≤10µA Reverse Leakage @ 28V | Minimizes quiescent current draw in always-on automotive modules (e.g., body controllers) |
| AEC-Q101 Qualification | Validated for automotive use with PPAP capability and IATF 16949 manufacturing |
| Halogen & Antimony Free | Meets automotive "Green" standards (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Supply |
|---|---|
Use Scenario: Protects 12V input rail of gasoline/diesel engine ECUs from alternator load-dump transients during battery disconnection. IC Role / Device Role / Timing Role: Unidirectional TVS clamps voltage spikes within 1ns to prevent damage to MCU, LDOs, and gate drivers. Use Value: Maintains system uptime by surviving repeated 4600W pulses without parameter shift or leakage increase. |
Use Scenario: Shields 5V/3.3V supply rails feeding CAN transceivers and microcontrollers in BCMs exposed to ISO7637-2 Pulse 1 (inductive switch-off). IC Role / Device Role / Timing Role: Fast-acting surge suppressor placed upstream of DC-DC converters to limit input overvoltage. Use Value: Prevents latch-up or burnout in CAN PHY ICs by clamping to 45.4V before downstream regulator overvoltage threshold. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Camera Power |
Use Scenario: Guards TCU 24V input against combined load-dump and battery reversal events in heavy-duty vehicle platforms. IC Role / Device Role / Timing Role: Primary front-end protection element rated for continuous operation at +175°C junction temperature. Use Value: Eliminates need for secondary TVS stages due to high single-pulse energy rating and thermal stability. |
Use Scenario: Secures 12V power feed to ADAS forward-facing cameras mounted near radiator, subject to thermal cycling and load-dump surges. IC Role / Device Role / Timing Role: High-reliability TVS integrated into camera module PCB with direct heatsink attachment. Use Value: Ensures uninterrupted video stream by preventing transient-induced reset or sensor damage during engine start-stop cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower peak power (400W), SMA package, RθJC ≈ 45°C/W | Not suitable for load-dump; limited to ISO7637-2 Pulse 1/2/3 only | Select when cost sensitivity outweighs surge severity; requires larger PCB area for thermal relief |
| SMCJ28A | Same DO-214AB package, 3000W rating, RθJC ≈ 2.5°C/W | Marginally supports Pulse 5a but lacks AEC-Q101 qualification and 175°C rating | Use for industrial non-automotive designs where automotive qualification is not mandated |
Compared with SMAJ28A and SMCJ28A, DM6W28AQ-13 provides 54% higher peak power than SMCJ28A and 14× higher than SMAJ28A, with superior thermal performance and full automotive qualification-making it the only choice for under-hood load-dump protection.
Availability
DM6W28AQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, transmission control units, and ADAS camera systems requiring stable component supply across extended temperature and surge conditions.
Supply support for DM6W28AQ-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.
DM6W28AQ-13 belongs to the DM6WxxAQ series of AEC-Q101-qualified TVS diodes engineered specifically for automotive load-dump and ISO7637-2 surge immunity in harsh under-hood environments.
FAQ
What is the maximum clamping voltage of DM6W28AQ-13 at its rated peak pulse current?
The DM6W28AQ-13 has a maximum clamping voltage (VC) of 45.4V at 101A peak pulse current (IPP), measured using the standard 10/1000µs waveform. This value is guaranteed across the full operating temperature range (-55°C to +175°C) and ensures downstream components remain below their absolute maximum voltage ratings during surge events.
Can DM6W28AQ-13 be used in 24V commercial vehicle systems?
Yes-DM6W28AQ-13 is explicitly rated for 24V nominal systems. Its 28V VRWM allows safe operation with 28V battery float voltages, and its 4600W peak power rating exceeds ISO16750-2 Pulse 5a requirements for 24V architectures. The device's +175°C junction rating supports under-hood deployment in trucks and buses.
How does the DO-218 (Type E) package improve thermal performance over SMA/SMC packages?
The DO-218 (Type E) package features an exposed anode heatsink tab that provides direct thermal conduction to PCB copper or external heatsinks. With RθJC = 1.0°C/W-over 40× lower than SMAJ28A's ~45°C/W-it reduces junction temperature rise by >95% during sustained surge events, enabling reliable operation without derating at high ambient temperatures.
Is DM6W28AQ-13 compliant with RoHS 3 and automotive green standards?
Yes-DM6W28AQ-13 is RoHS 3 compliant (2015/863/EU), lead-free, halogen-free (<900ppm Br+Cl), and antimony-free (<1000ppm Sb), meeting Diodes Incorporated's "Green" definition. It carries IATF 16949 certification and PPAP documentation support for automotive production release.
DM6W28AQ-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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 101A
- 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
DM6W28AQ-13 FAQ
1.How can I place an order for DM6W28AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W28AQ-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 DM6W28AQ-13 reliable?
The price and inventory of DM6W28AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W28AQ-13 is usually 5 days.
3.What payment methods are accepted for DM6W28AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W28AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W28AQ-13?
DM6W28AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W28AQ-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 DM6W28AQ-13?
For technical support, including DM6W28AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W28AQ-13 requirements.
6.How does Aetrix verify that DM6W28AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM6W28AQ-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 DM6W28AQ-13 meets industry standards.
7.What is the process for return or replacement of DM6W28AQ-13?
All DM6W28AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W28AQ-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 DM6W28AQ-13 part is unused and in its original packaging.
Return procedure for DM6W28AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W28AQ-13 Tags
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