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Diodes Incorporated DM5W11A-13
- Part No.:
- DM5W11A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W11A-13.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:4,755
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Product details
Overview
DM5W11A-13 from Diodes Incorporated is a surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump and ISO 7637-2 surge protection. It features a 11 V reverse standoff voltage (VRWM), 18.2 V maximum clamping voltage (VC) at 198 A peak pulse current, 3600 W peak pulse power (10/1000 µs), and DO-218 (Type E) package with anode-heatsink polarity. It is used in 12 V automotive power rail protection against load dump per ISO 16750-2.
For engineers reviewing the DM5W11A-13 datasheet, DM5W11A-13 pinout, DM5W11A-13 application, or DM5W11A-13 equivalent, this page provides verified electrical parameters, thermal resistance (RθJC = 1.1 °C/W), ISO-compliant surge capability, and automotive-grade qualification per AEC-Q standards - all critical for robust power rail design in engine control units and body electronics.
Technical Context
This TVS diode operates as a unidirectional, anode-grounded clamp in high-energy automotive transients. Its low clamping ratio (VC/VRWM ≈ 1.65) and 1.1 °C/W junction-to-case thermal resistance enable rapid energy dissipation during 10 ms exponential load dump events up to 3600 W without thermal runaway.
The device meets ISO 10605 (Pulse A/B), ISO 7637-2 (Pulse 1, 2a, 3a, 3b), and ISO 16750-2 requirements. Its 500 A IFSM rating supports high-current surge handling, while <10 µA reverse leakage at VRWM ensures minimal standby power loss in always-on vehicle systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 11 V - Maximum continuous reverse operating voltage before clamping begins; matches nominal 12 V automotive battery systems. |
| VBR (min/max) | 12.2 V / 13.5 V - Breakdown occurs within this range at 5 mA test current; ensures predictable turn-on margin above VRWM. |
| VC @ IPP | 18.2 V @ 198 A - Clamped voltage during 10/1000 µs surge; limits downstream IC stress below 20 V threshold. |
| PPK | 3600 W - Peak pulse power handling capacity; sustains ISO 16750-2 load dump surges without failure. |
| RθJC | 1.1 °C/W - Low thermal resistance enables efficient heat transfer to heatsink; critical for sustained surge duty cycles. |
| TJ Range | –55 °C to +175 °C - Full automotive temperature operation; supports under-hood placement near engines. |
| IFSM | 500 A - Peak forward surge current rating; withstands 8.3 ms half-sine wave overloads without bond wire failure. |
Pinout & Package
Package: DO-218 (Type E), surface-mount, anode-heatsink configuration. Cathode marked by bar; anode connected to heatsink tab for low-inductance, high-current path to chassis ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current return path and thermal interface | Directly soldered to PCB copper pour or metal chassis; serves dual role of low-impedance surge current sink and primary heat conduction path. |
| Cathode (Lead) | Transient voltage sensing and clamping node | Connected to protected line (e.g., battery feed); initiates avalanche conduction when voltage exceeds VBR, shunting surge to anode/heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| 3600 W peak pulse power | Enables single-device protection against worst-case ISO 16750-2 load dump (up to 40 V, 10 ms), eliminating need for parallel TVS arrays. |
| Low RθJC (1.1 °C/W) | Reduces junction temperature rise by >40% vs. comparable DO-214AB devices, extending reliability under repeated surge events. |
| Automotive qualification (AEC-Q) | Validated for high-reliability automotive use including engine control modules, ADAS power supplies, and infotainment head units. |
| RoHS-compliant & halogen-free | Meets EU RoHS 3 (2015/863/EU) and automotive green material requirements (<900 ppm Br/Cl, <1000 ppm Sb). |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects microcontroller, CAN transceivers, and sensor interfaces from alternator load dump surges during ignition-off transitions. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery feed and local DC/DC input, activated within nanoseconds of overvoltage onset. Use Value: Limits clamped voltage to 18.2 V, preventing damage to 20 V-rated LDOs and ensuring uninterrupted MCU operation during 40 V/10 ms transients. |
Use Scenario: Shields door module logic, LIN transceivers, and LED drivers from ISO 7637-2 Pulse 1 (inductive kick) and Pulse 3b (capacitive discharge) events. IC Role / Device Role / Timing Role: Anode-grounded surge suppressor on 12 V main rail, leveraging heatsink tab for low-inductance grounding to vehicle chassis. Use Value: Delivers 198 A peak current handling with <10 µA leakage at 11 V, minimizing quiescent current drain in sleep-mode vehicle states. |
| Advanced Driver Assistance Systems (ADAS) Camera Power | Infotainment Head Unit Power Supply |
Use Scenario: Safeguards image sensor and SerDes interface power rails against coupled transients from nearby motor actuators and EMI sources. IC Role / Device Role / Timing Role: Fast-response TVS placed immediately upstream of buck converter input, clamping sub-20 ns spikes before they propagate. Use Value: Achieves 12.2–13.5 V breakdown tolerance with 1.1 °C/W thermal resistance, maintaining stable operation across –40 °C to +105 °C ambient ranges. |
Use Scenario: Guards USB-C PD controllers, audio codecs, and display drivers from battery line disturbances during jump-start or cold-cranking conditions. IC Role / Device Role / Timing Role: Primary overvoltage clamp on fused 12 V supply rail, coordinated with upstream fuse timing to avoid nuisance blowing. Use Value: Supports 500 A IFSM rating and 175 °C max junction temperature, enabling reliable operation during extended high-temperature cabin environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Lower PPK (400 W), SMA package, RθJC ≈ 50 °C/W, no AEC-Q qualification | Rated only for general industrial use; insufficient for ISO 16750-2 load dump compliance | Select only for non-automotive, low-energy surge environments where cost outweighs reliability. |
| SMCJ11A | Higher PPK (1500 W), SMC package, RθJC ≈ 10 °C/W, AEC-Q qualified but not ISO 16750-2 validated | Lacks full load dump certification; limited to ISO 7637-2 Pulse 1/2a only | Acceptable for BCM-level protection where full load dump immunity is not required; verify system-level testing. |
Compared with SMAJ11A and SMCJ11A, DM5W11A-13 uniquely delivers certified 3600 W load dump immunity, 1.1 °C/W thermal resistance, and AEC-Q + ISO 16750-2 alignment - making it the only choice for front-end power rail protection in modern automotive ECUs and ADAS domains.
Availability
DM5W11A-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, ADAS camera systems, and infotainment head units requiring stable component supply across long production lifecycles.
Supply support for DM5W11A-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, computing, and consumer markets.
DM5W11A-13 belongs to Diodes' automotive-grade TVS portfolio engineered specifically for ISO 16750-2 and ISO 7637-2 compliance in harsh-temperature, high-reliability vehicle power systems.
FAQ
What is the maximum clamping voltage of DM5W11A-13 under standard test conditions?
The maximum clamping voltage (VC) is 18.2 V at 198 A peak pulse current using a 10/1000 µs waveform. This value is measured per JEDEC-standard test conditions and guarantees voltage limiting below 20 V during automotive load dump events, protecting downstream 20 V-rated regulators and microcontrollers.
Is DM5W11A-13 qualified for automotive applications per AEC-Q200?
Yes - DM5W11A-13 is qualified to AEC-Q200 Grade 1 (–40 °C to +125 °C ambient) and fully compliant with AEC-Q200 stress test requirements. It is also validated to ISO 16750-2 (load dump) and ISO 7637-2 (transient pulses), meeting OEM-level automotive reliability standards.
How does the DO-218 (Type E) package improve thermal performance over standard SMC packages?
The DO-218 (Type E) package features an integrated anode heatsink tab that provides direct thermal conduction to PCB copper or chassis ground, achieving RθJC = 1.1 °C/W - over 9× better than typical SMC packages (~10 °C/W). This enables higher surge repetition rates and longer operational life in thermally constrained under-hood locations.
Can DM5W11A-13 be used in bidirectional configurations?
No - DM5W11A-13 is a unidirectional TVS diode with anode-heatsink polarity. It conducts only during positive overvoltage events on the cathode side. For bidirectional protection (e.g., data lines), separate symmetric TVS arrays or dedicated bidirectional devices like DMP1001SNSQ must be used.
DM5W11A-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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 198A
- Power - Peak Pulse:
- 3600W (3.6kW)
- 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
DM5W11A-13 FAQ
1.How can I place an order for DM5W11A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W11A-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 DM5W11A-13 reliable?
The price and inventory of DM5W11A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W11A-13 is usually 5 days.
3.What payment methods are accepted for DM5W11A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W11A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W11A-13?
DM5W11A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W11A-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 DM5W11A-13?
For technical support, including DM5W11A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W11A-13 requirements.
6.How does Aetrix verify that DM5W11A-13 is sourced from the original manufacturer or authorized distributors?
All DM5W11A-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 DM5W11A-13 meets industry standards.
7.What is the process for return or replacement of DM5W11A-13?
All DM5W11A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W11A-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 DM5W11A-13 part is unused and in its original packaging.
Return procedure for DM5W11A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W11A-13 Tags
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