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Diodes Incorporated DM5W14AQ-13
- Part No.:
- DM5W14AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
DM5W14AQ-13.pdf
- Description:
- TVS DO-218
- Quantity:
- Payment:
- Shipping:
Inventory:7,012
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Product details
Overview
DM5W14AQ-13 from Diodes Incorporated is a 3600W 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 14V reverse standoff voltage (VRWM), 15.6–17.2V breakdown voltage (VBR), 23.2V clamping voltage (VC) at 155A peak pulse current, and AEC-Q101 qualification for under-hood power rail protection.
For engineers reviewing the DM5W14AQ-13 datasheet, DM5W14AQ-13 pinout, DM5W14AQ-13 application, or DM5W14AQ-13 equivalent, this device serves as a high-reliability, lead-free, halogen-free TVS for 12V automotive systems requiring robust immunity to ISO16750-2 Pulse A/B and ISO7637-2 Pulse 1/2a/3a/3b transients.
Technical Context
This unidirectional TVS diode operates with anode-connected heatsink polarity and delivers 3600W peak pulse power (10/1000µs) while maintaining low thermal resistance (RθJC = 1.1°C/W). Its clamping performance ensures system-level protection during load dump events up to 10ms exponential waveform, with derated power capability above +25°C case temperature.
The device exhibits stable electrical characteristics across -55°C to +175°C operating range, with <10µA reverse leakage at VRWM and <250µA at +175°C. Its DO-218 package enables high-current PCB mounting via heatsink-integrated anode termination, supporting direct thermal coupling to chassis or copper pour.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 14 V - Maximum continuous reverse operating voltage before clamping begins; matches nominal 12V automotive battery systems with margin. |
| VBR @ IT=5mA | 15.6–17.2 V - Breakdown threshold range ensuring reliable turn-on during surges without premature conduction. |
| VC @ IPP=155A | 23.2 V - Clamped voltage during 10/1000µs surge; limits downstream IC stress below 28V automotive absolute max ratings. |
| PPK | 3600 W - Peak pulse power handling capacity for single-event load dump transients per ISO16750-2. |
| RθJC | 1.1 °C/W - Low junction-to-case thermal resistance enabling efficient heat transfer to heatsink or PCB copper. |
| TJ Range | -55 to +175 °C - Full automotive-grade operating temperature range compatible with engine compartment environments. |
| AEC-Q101 | Qualified - Validated for automotive use with PPAP capability and IATF 16949 manufacturing control. |
Pinout & Package
Package: DO-218 (Type E), molded plastic UL 94V-0 housing with matte tin-plated terminals; heatsink tab functions as anode terminal; cathode marked by bar on top surface; weight ≈2.74 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive surge current path | Primary thermal and electrical connection point; must be soldered to large copper area or metal chassis for effective heat dissipation and low-inductance surge return path. |
| Cathode (Top Surface Lead) | Negative surge current path | Standard PCB trace connection; polarity indicator bar denotes cathode; requires controlled impedance routing to minimize clamping delay during fast transients. |
Key Features
| Feature | Design Value |
|---|---|
| 3600W Peak Pulse Power | Enables single-device protection against severe ISO16750-2 load dump events without parallel stacking or derating. |
| Low RθJC (1.1°C/W) | Reduces junction temperature rise by >40% vs. comparable SMC-packaged TVS, extending lifetime under repeated surge conditions. |
| AEC-Q101 Qualified | Validates reliability for automotive power electronics including body control modules, ADAS ECUs, and infotainment power supplies. |
| Halogen & Antimony Free | Meets automotive OEM green material requirements (<900ppm Br/Cl, <1000ppm Sb) without compromising surge robustness. |
| ISO7637-2 / ISO16750-2 Compliance | Guarantees pass/fail validation for Pulse 1, 2a, 3a, 3b, and Load Dump (Pulse A/B) without additional external filtering. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects 12V input stage of gasoline/diesel engine ECU against alternator load dump and cranking transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive-going surges on main power rail before they reach LDOs, microcontrollers, and CAN transceivers. Use Value: Maintains VC ≤23.2V during 3600W pulses, preventing overvoltage damage to 28V-rated power management ICs and ensuring ASIL-B functional safety compliance. |
Use Scenario: Shields BCM power domain from battery line disturbances caused by door lock motors, HVAC blower activation, and lighting loads. IC Role / Device Role / Timing Role: Fast-response surge suppressor placed at board-level entry point, coordinated with upstream fuse and downstream LC filters. Use Value: Withstands 155A peak current at 10/1000µs, eliminating need for redundant TVS devices and reducing BOM count in space-constrained modules. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Electric Power Steering (EPS) Control Unit |
Use Scenario: Secures 12V supply to image sensor and ISP in front/rear-view cameras exposed to under-hood thermal and electrical stress. IC Role / Device Role / Timing Role: Primary overvoltage protection element located adjacent to connector interface, minimizing trace inductance before sensitive analog front-end circuitry. Use Value: Delivers <10µA leakage at VRWM and stable clamping across -40°C to +125°C ambient, preserving low-noise imaging performance. |
Use Scenario: Guards EPS motor driver power stage against regenerative energy spikes and battery reversal during fault conditions. IC Role / Device Role / Timing Role: High-current TVS integrated into H-bridge DC bus protection network, working in concert with reverse-polarity MOSFETs and current sense amplifiers. Use Value: Achieves 500A IFSM rating and 1.1°C/W RθJC, allowing direct heatsink mounting to aluminum housing for sustained surge endurance during steering assist maneuvers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A | Lower PPK (400W), SMA package, RθJC ≈ 45°C/W, no AEC-Q101 qualification | Limited to non-safety-critical consumer or industrial 12V rails; insufficient for ISO16750-2 load dump | Select only for cost-sensitive, non-automotive designs where surge energy is <500W and thermal budget allows higher junction temperature. |
| SMCJ14A | PPK = 1500W, SMC package, RθJC ≈ 3.5°C/W, AEC-Q101 qualified but lower surge rating | Acceptable for ISO7637-2 Pulse 1/2a/3 only; fails ISO16750-2 Pulse A/B due to power limitation | Use when space constraints prohibit DO-218 footprint and system-level testing confirms 1500W surge margin is sufficient. |
Compared with SMAJ14A and SMCJ14A, DM5W14AQ-13 provides 2.4× higher peak power and 3.2× better thermal resistance, enabling single-device compliance with full automotive load dump standards while supporting extended temperature operation and PPAP documentation.
Availability
DM5W14AQ-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera ECUs, and electric power steering systems requiring stable component supply under AEC-Q101 and IATF 16949 governance.
Supply support for DM5W14AQ-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 with ISO/TS 16949 and ISO 9001 certification.
This device belongs to Diodes' DM5WxxAQ automotive TVS family, engineered specifically for under-hood power rail protection against ISO16750-2 load dump and ISO7637-2 conducted transients in 12V vehicle architectures.
FAQ
What is the maximum clamping voltage of DM5W14AQ-13 at rated peak pulse current?
The maximum clamping voltage (VC) is 23.2 V at 155 A peak pulse current under 10/1000 µs waveform conditions, measured per JEDEC standards. This value is guaranteed across the full operating temperature range and ensures downstream 28V-rated components remain within safe operating limits during surge events.
Is DM5W14AQ-13 suitable for bidirectional surge protection?
No - DM5W14AQ-13 is a unidirectional TVS diode with anode-connected heatsink polarity. It protects only against positive-going transients on the cathode side. For bidirectional protection, a separate device or a dedicated bidirectional TVS such as DM5W14CAQ-13 would be required.
How does the DO-218 package improve thermal performance over standard SMC packages?
The DO-218 (Type E) package integrates the anode directly into a large metal heatsink tab, achieving RθJC = 1.1°C/W - over three times better than typical SMC-packaged TVS diodes (~3.5°C/W). This allows direct mounting to chassis or thick copper planes, reducing steady-state junction temperature by up to 45°C at 5W average dissipation.
Does DM5W14AQ-13 require derating at elevated ambient temperatures?
Yes - power dissipation must be derated linearly above +25°C case temperature per Figure 1 in DS41000 Rev. 7-2. At TC = +125°C, PM(AV) drops to approximately 2.5W. Designers must ensure heatsinking maintains TC ≤ +105°C for full 5W continuous operation and validate thermal performance using the published transient thermal impedance curve (Figure 5).
DM5W14AQ-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- -
- Supplier Device Package:
- -
DM5W14AQ-13 FAQ
1.How can I place an order for DM5W14AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W14AQ-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 DM5W14AQ-13 reliable?
The price and inventory of DM5W14AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W14AQ-13 is usually 5 days.
3.What payment methods are accepted for DM5W14AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W14AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W14AQ-13?
DM5W14AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W14AQ-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 DM5W14AQ-13?
For technical support, including DM5W14AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W14AQ-13 requirements.
6.How does Aetrix verify that DM5W14AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM5W14AQ-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 DM5W14AQ-13 meets industry standards.
7.What is the process for return or replacement of DM5W14AQ-13?
All DM5W14AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W14AQ-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 DM5W14AQ-13 part is unused and in its original packaging.
Return procedure for DM5W14AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W14AQ-13 Tags
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