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Diodes Incorporated DM8W13AQ-13
- Part No.:
- DM8W13AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM8W13AQ-13.pdf
- Description:
- TVS DO-218
- Quantity:
- Payment:
- Shipping:
Inventory:6,302
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Product details
Overview
DM8W13AQ-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 13 V reverse standoff voltage, 6600 W peak pulse power (10/1000 µs), 700 A IFSM, 17.0 V clamping voltage at 388 A, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the DM8W13AQ-13 datasheet, DM8W13AQ-13 pinout, DM8W13AQ-13 application, or DM8W13AQ-13 equivalent, key selection criteria include clamping voltage vs. system rail tolerance, thermal resistance (RθJC = 0.9 °C/W), junction temperature range (–55 to +175 °C), and compliance with ISO16750-2 load dump and ISO10605 ESD standards.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for high-energy transients. Its unidirectional configuration places the heatsink as the anode terminal, enabling low-inductance mounting directly to chassis ground or heatsink planes in automotive power distribution modules.
The device operates in avalanche breakdown mode during surges, with precise VBR (14.4–15.9 V) and tightly controlled VC (17.0 V max @ 388 A). Thermal design leverages its 0.9 °C/W junction-to-case resistance and 8 W steady-state power dissipation at TC = +25°C, supporting continuous operation up to TJ = +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 13 V - Maximum continuous reverse operating voltage before leakage exceeds 15 µA |
| VBR @ IT=5mA | 14.4–15.9 V - Breakdown initiates within this range, ensuring predictable clamping onset |
| VC @ IPP=388A | 17.0 V - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPK (10/1000µs) | 6600 W - Peak surge energy handling capacity for ISO7637-2 Pulse 5a load dump events |
| RθJC | 0.9 °C/W - Enables direct heatsink mounting for efficient thermal management in engine bay environments |
| TJ Range | –55 to +175 °C - Fully rated for under-hood automotive deployment without derating |
| AEC-Q101 | Qualified - Validated for high-reliability automotive use including temperature cycling, HTRB, and UHAST |
Pinout & Package
Package: DO-218 (Type E), molded plastic case with UL 94V-0 flammability rating; heatsink tab serves as anode terminal; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive surge return path | Low-inductance connection point for chassis ground or heatsink; must be soldered to copper area ≥ 100 mm² for thermal and surge performance |
| Cathode (Top Surface Pin) | Surge current entry node | Connected to protected line (e.g., 12 V battery rail); polarity-sensitive placement required per marking (bar = cathode) |
Key Features
| Feature | Design Value |
|---|---|
| 6600 W Peak Pulse Power | Handles full ISO16750-2 load dump (12 V system, 10 ms exponential waveform up to 5200 W at +125°C) |
| DO-218 Package with Heatsink Anode | Enables PCB-level thermal conduction to metal chassis, reducing junction temperature rise by >40% vs. SMC packages |
| AEC-Q101 Qualification | Validated for automotive production use including 1000-cycle temperature cycling and 1000-hour HTRB at +175°C |
| Lead-Free & Halogen-Free | RoHS 3 compliant (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb); compatible with lead-free reflow profiles (peak 260°C) |
| Low Clamping Ratio (VC/VBR ≈ 1.13) | Minimizes overvoltage margin needed for protected ICs-e.g., supports 16 V max-rated CAN transceivers on 12 V rails |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects microcontroller, CAN transceiver, and sensor power supplies from alternator load dump spikes during ignition-off events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and local DC/DC input, clamping transients before LDOs or buck converters. Use Value: Limits voltage to ≤17.0 V during 388 A surge, preventing latch-up or gate oxide damage in 16 V-rated automotive ICs. | Use Scenario: Shields BCM power domain from ISO7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off) in vehicle lighting and door module circuits. IC Role / Device Role / Timing Role: Primary surge clamp on main 12 V input, mounted directly to metal bracket for thermal sinking. Use Value: Maintains functional safety integrity by holding rail voltage below 17.0 V for >10 ms, satisfying ASIL-B power supply immunity requirements. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Safeguards image sensor and serializer ICs against battery transients in front-facing camera modules exposed to under-hood heat and vibration. IC Role / Device Role / Timing Role: Secondary TVS after primary fuse and LC filter, providing final-stage overvoltage protection before PMIC input. Use Value: Delivers 17.0 V clamping with <1 ns response time, preventing pixel corruption or serializer reset during engine cranking surges. | Use Scenario: Protects high-side/low-side gate drivers and current sense amplifiers from motor back-EMF and load dump in EPS H-bridge power stages. IC Role / Device Role / Timing Role: Mounted across motor driver supply rail (VDD) and chassis ground, leveraging heatsink tab for thermal coupling. Use Value: Absorbs 6600 W surge energy without degradation, preserving driver IC reliability over 15-year vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A | Lower PPK (400 W), SMA package, RθJC = 45 °C/W, no AEC-Q101 qualification | Not suitable for load dump; limited to ISO7637-2 Pulse 1/2a/3a only | Select only for non-automotive, low-energy board-level ESD protection |
| SMCJ13A | PPK = 1500 W, SMC package, RθJC = 10.5 °C/W, AEC-Q101 qualified | Insufficient for ISO16750-2 load dump; clamps at 21.2 V @ 71 A | Acceptable for cost-sensitive BCMs where load dump is mitigated upstream |
Compared with SMAJ13A and SMCJ13A, DM8W13AQ-13 delivers 4.4× higher surge energy handling and 50× lower thermal resistance-enabling direct integration into high-power automotive power rails without external heatsinks or derating.
Availability
DM8W13AQ-13 is available at Aetrix Electronics and suitable for automotive power distribution modules, engine control units, body control modules, and ADAS camera systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for DM8W13AQ-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
The DM8WxxAQ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically for robust load dump and ISO7637-2 surge immunity in 12 V and 24 V vehicle electrical systems.
FAQ
What is the maximum clamping voltage of DM8W13AQ-13 under standard test conditions?
The maximum clamping voltage (VC) is 17.0 V when subjected to a 10/1000 µs waveform with peak current IPP = 388 A. This value is guaranteed across –55°C to +175°C junction temperature range and reflects worst-case device behavior under surge conditions defined in ISO16750-2 Annex D.
How should the heatsink tab (anode) be mounted for optimal thermal and electrical performance?
The anode tab must be soldered to a minimum 100 mm² copper area connected to chassis ground or a dedicated heatsink. Use thermal vias (≥6 × 0.3 mm diameter) beneath the tab to transfer heat to inner layers. Avoid conformal coating over the tab, as it impedes thermal conduction and reduces surge capability by up to 30%.
Does DM8W13AQ-13 meet ISO10605 ESD requirements for automotive interior components?
Yes-DM8W13AQ-13 meets ISO10605 Pulse A (±25 kV air, ±20 kV contact) and Pulse B (±30 kV air, ±25 kV contact) requirements. Its low clamping voltage and fast response ensure protected circuits remain functional after ESD events, validated per AEC-Q101 stress testing protocols.
Can DM8W13AQ-13 be used in 24 V commercial vehicle systems?
No-DM8W13AQ-13 is specified for 13 V VRWM and optimized for 12 V automotive systems. For 24 V applications, Diodes recommends DM8W26AQ-13 (26 V VRWM) or DM8W30AQ-13 (30 V VRWM), which provide appropriate standoff margins and clamping voltages aligned with 24 V load dump profiles.
DM8W13AQ-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):
- 13V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.5V
- Current - Peak Pulse (10/1000µs):
- 307A
- Power - Peak Pulse:
- 6600W (6.6kW)
- 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
DM8W13AQ-13 FAQ
1.How can I place an order for DM8W13AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM8W13AQ-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 DM8W13AQ-13 reliable?
The price and inventory of DM8W13AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM8W13AQ-13 is usually 5 days.
3.What payment methods are accepted for DM8W13AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM8W13AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM8W13AQ-13?
DM8W13AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM8W13AQ-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 DM8W13AQ-13?
For technical support, including DM8W13AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM8W13AQ-13 requirements.
6.How does Aetrix verify that DM8W13AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM8W13AQ-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 DM8W13AQ-13 meets industry standards.
7.What is the process for return or replacement of DM8W13AQ-13?
All DM8W13AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM8W13AQ-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 DM8W13AQ-13 part is unused and in its original packaging.
Return procedure for DM8W13AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM8W13AQ-13 Tags
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Diodes Incorporated
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Diodes Incorporated
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