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Diodes Incorporated DM8W16A-13
- Part No.:
- DM8W16A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM8W16A-13.pdf
- Description:
- TVS DIODE 16VWM 26VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:4,188
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Product details
Overview
DM8W16A-13 from Diodes Incorporated is a unidirectional surface-mount transient voltage suppressor (TVS) designed for automotive load dump and ISO 7637-2 surge protection in high-reliability power rail applications. It delivers 6600W peak pulse power at 10/1000µs, clamps at 26.0V max under 254A peak pulse current, and operates across –55°C to +175°C with 0.9°C/W junction-to-case thermal resistance.
For engineers reviewing the DM8W16A-13 datasheet, DM8W16A-13 pinout, DM8W16A-13 application, or DM8W16A-13 equivalent, this device is selected for its validated ISO 16750-2 Pulse A/B and ISO 7637-2 Pulse 1/2a/3a/3b compliance, DO-218 package thermal robustness, and automotive-grade qualification per AEC-Q standards - critical for 12V/24V vehicle electrical systems.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transients above its 16V reverse standoff voltage (VRWM), with a guaranteed breakdown range of 17.8–19.7V at 5mA test current. Its unidirectional polarity and heatsink-anode configuration enable direct mounting to metal chassis for enhanced thermal dissipation during sustained load dump events.
It exhibits 2.74g mass and 13.5mm body length in DO-218 (Type E) packaging, supporting 8W steady-state power dissipation at TC = +25°C and derating linearly above that temperature. Its 150µA max reverse leakage at VRWM and 250µA at TJ = +175°C ensure low standby power loss in always-on automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 6600W (10/1000µs waveform) - handles severe automotive load dump surges without failure |
| Reverse Standoff Voltage | 16V - sets minimum operating voltage threshold before clamping activates |
| Clamping Voltage | 26.0V max @ 254A - limits downstream circuit voltage during worst-case transient |
| Peak Pulse Current | 254A (10/1000µs) - quantifies maximum surge current it can safely divert |
| Junction Temperature Range | –55°C to +175°C - supports under-hood deployment in engine control units and body controllers |
| Thermal Resistance | 0.9°C/W (Junction-to-Case) - enables efficient heat transfer to heatsink or PCB copper pour |
| Package | DO-218 (Type E) - surface-mount, high-power capable outline with anode-heatsink polarity marking |
Pinout & Package
Package: DO-218 (Type E), molded plastic UL 94V-0 housing; heatsink tab is electrically connected to the anode terminal. Polarity marked by cathode bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current entry point during forward conduction; primary thermal path | Must be soldered to large copper area or metal chassis for thermal management |
| Cathode (Top Surface Marked Bar) | Current exit point during clamping; connects to protected line | Connected to 12V/24V supply rail upstream of sensitive electronics |
Key Features
| Feature | Design Value |
|---|---|
| 6600W Peak Pulse Power | Enables single-device protection against ISO 16750-2 Load Dump (Pulse 5a/b) up to 100V/100ms |
| TJ = +175°C Operation | Supports placement near high-temperature components (e.g., power converters, ECUs) without derating |
| DO-218 Mechanical Robustness | Withstands mechanical stress and thermal cycling in automotive vibration environments |
| Lead-Free & Halogen-Free | Meets RoHS 3 (2015/863/EU) and automotive green material requirements |
| AEC-Q Qualified | Validated per JEDEC reliability standards for automotive-grade production use |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Protects microcontroller power rails from alternator load dump spikes during battery disconnect events. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery input and DC-DC converter input. Use Value: Limits transient voltage to ≤26.0V, preventing overvoltage damage to 3.3V/5V LDOs and MCU I/Os. |
Use Scenario: Shields LIN bus transceivers and door module drivers from ISO 7637-2 Pulse 1 (inductive switch-off) surges. IC Role / Device Role / Timing Role: Primary surge suppression element on 12V supply line feeding multiple sub-modules. Use Value: Absorbs 254A peak current while maintaining <150µA leakage at 16V, minimizing quiescent drain. |
| Advanced Driver Assistance Systems (ADAS) Camera ECU | Electric Power Steering (EPS) Control Unit |
Use Scenario: Safeguards image sensor and SerDes power supplies against coupled transients from nearby motor actuation. IC Role / Device Role / Timing Role: Secondary clamping stage after primary fuse and LC filter, directly at SoC power input. Use Value: Provides <10ns response time and 26.0V clamping to preserve signal integrity in high-speed video interfaces. |
Use Scenario: Guards gate drivers and current-sense amplifiers from back-EMF surges generated by steering motor commutation. IC Role / Device Role / Timing Role: High-energy TVS mounted on heatsinked ground plane adjacent to H-bridge power stage. Use Value: Dissipates 6600W peak energy without thermal runaway, ensuring functional safety continuity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Lower peak power (400W), SMA package, 0.25W steady-state rating | Not suitable for load dump; limited to low-energy ISO 7637-2 Pulse 1/2a only | Select when space-constrained and surge energy is below 100W·s |
| SMCJ16A | Higher peak power (1500W), SMC package, 5W steady-state rating | Lacks AEC-Q qualification and 175°C operation; not approved for under-hood use | Use for industrial non-automotive 12V systems where cost is prioritized over qualification |
Compared with SMAJ16A and SMCJ16A, DM8W16A-13 uniquely combines 6600W surge capacity, AEC-Q qualification, and +175°C operation - making it the only option qualified for front-end load dump protection in modern automotive ECUs.
Availability
DM8W16A-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 across extended temperature and high-reliability operational life.
Supply support for DM8W16A-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, manufacturing, and sales operations across Asia, Europe, and North America.
DM8W16A-13 belongs to Diodes' high-power automotive TVS portfolio, engineered specifically to meet ISO 16750-2 and ISO 7637-2 surge immunity requirements for 12V/24V vehicle electrical architectures.
FAQ
What is the maximum clamping voltage of DM8W16A-13 at rated peak pulse current?
The maximum clamping voltage VC is 26.0V when subjected to a 10/1000µs waveform with IPP = 254A, measured per Figure 3 in DS40428 Rev. 7-2. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuits during surge events.
Is DM8W16A-13 qualified for automotive use?
Yes - DM8W16A-13 is qualified to JEDEC standards referenced in AEC-Q for high-reliability automotive applications. It meets ISO 16750-2 (Pulse A/B) and ISO 7637-2 (Pulse 1/2a/3a/3b), and is rated for continuous operation from –55°C to +175°C, fulfilling under-hood environmental requirements.
How is polarity identified on the DO-218 package?
Polarity is marked on the top surface: a bar denotes the cathode terminal, while the metal heatsink tab is the anode. This configuration requires the anode to be connected to system ground or chassis for proper clamping behavior in unidirectional TVS operation.
What is the thermal resistance and how does it impact layout?
RθJC is 0.9°C/W, meaning each watt dissipated raises junction temperature 0.9°C above case temperature. To maintain safe operation, the heatsink tab must be soldered to ≥250 mm² of 2-oz copper or attached to a metal chassis - insufficient copper area will cause thermal saturation and premature failure during repeated surges.
DM8W16A-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 254A
- 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
DM8W16A-13 FAQ
1.How can I place an order for DM8W16A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM8W16A-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 DM8W16A-13 reliable?
The price and inventory of DM8W16A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM8W16A-13 is usually 5 days.
3.What payment methods are accepted for DM8W16A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM8W16A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM8W16A-13?
DM8W16A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM8W16A-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 DM8W16A-13?
For technical support, including DM8W16A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM8W16A-13 requirements.
6.How does Aetrix verify that DM8W16A-13 is sourced from the original manufacturer or authorized distributors?
All DM8W16A-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 DM8W16A-13 meets industry standards.
7.What is the process for return or replacement of DM8W16A-13?
All DM8W16A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM8W16A-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 DM8W16A-13 part is unused and in its original packaging.
Return procedure for DM8W16A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM8W16A-13 Tags
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