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Diodes Incorporated DM8W16AQ-13
- Part No.:
- DM8W16AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM8W16AQ-13.pdf
- Description:
- TVS DO-218
- Quantity:
- Payment:
- Shipping:
Inventory:7,379
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Product details
Overview
DM8W16AQ-13 from Diodes Incorporated is a surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump and ISO7637-2 surge protection. It features 6600W peak pulse power (10/1000µs), 16V reverse standoff voltage (VRWM), 17.8–19.7V breakdown voltage (VBR), 28.5V clamping voltage (VC) at 345A IPP, and operates from –55°C to +175°C in DO-218 (Type E) package.
For engineers reviewing the DM8W16AQ-13 datasheet, DM8W16AQ-13 pinout, DM8W16AQ-13 application, or DM8W16AQ-13 equivalent, this device is selected for high-energy transient suppression in 12V/24V automotive power rails where AEC-Q101 qualification, ISO16750-2 compliance, and thermal robustness up to TJ = +175°C are mandatory.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for unidirectional surge clamping in automotive battery line protection. Its DO-218 package provides low thermal resistance (RθJC = 0.9°C/W) and anode-heatsink polarity configuration enabling direct mounting to metal chassis for enhanced thermal dissipation during load dump events.
The device meets ISO 10605 (Pulse A/B), ISO 7637-2 (Pulse 1, 2a, 3a, 3b), and ISO 16750-2 load dump requirements with verified 10ms exponential waveform capability up to 5000W at TC = +125°C. Clamping performance is specified at IT = 5mA and Ipp = 345A (10/1000µs), with leakage <15µA at VRWM and TJ = +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000µs) | 6600W - sustains single high-energy transients per ISO 16750-2 load dump without failure |
| Reverse Standoff Voltage (VRWM) | 16V - blocks normal 12V/24V automotive system voltages while remaining inactive |
| Clamping Voltage (VC) @ 345A | 28.5V - limits downstream IC voltage to safe level during 345A surge event |
| Breakdown Voltage (VBR) | 17.8–19.7V @ 5mA - ensures reliable turn-on before damaging overvoltage occurs |
| Junction Temperature Range | –55°C to +175°C - supports under-hood placement with full AEC-Q101 reliability |
| Thermal Resistance (Junction-to-Case) | 0.9°C/W - enables efficient heat transfer to heatsink or PCB copper pour |
| Leakage Current @ VRWM, +175°C | ≤250µA - maintains low quiescent power loss in hot-start conditions |
Pinout & Package
Package: DO-218 (Type E), molded plastic case (UL 94V-0), 2.74g weight, polarity marked with cathode bar and anode circle; heatsink tab is electrically connected to anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive DC rail connection / thermal path | Must be soldered to large copper area or metal chassis for thermal management and electrical return |
| Cathode (Lead) | Surge current sink / clamping node | Connected to protected circuit input; carries full transient current to ground/anode during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 6600W Peak Pulse Power | Enables single-event survival of worst-case ISO 16750-2 load dump surges without degradation |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-Passivated Die | Prevents moisture ingress and intermetallic migration under high-humidity under-hood conditions |
| Lead-Free & Halogen-Free | Complies with RoHS 3 and automotive "Green" standards (<900ppm Br/Cl, <1000ppm Sb) |
| DO-218 Thermal Performance | 0.9°C/W RθJC allows >50% higher sustained power vs. SMA/SMB packages at same footprint |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Line |
|---|---|
Use Scenario: Protects microcontroller, CAN transceivers, and analog sensors from alternator load dump spikes during ignition-off events. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and input filter capacitor. Use Value: Limits voltage to ≤28.5V during 345A surge, preventing latch-up or gate oxide damage in 3.3V/5V logic supplies. | Use Scenario: Shields door module power inputs from ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive coupling). IC Role / Device Role / Timing Role: Primary surge clamp on fused 12V supply before DC-DC converter and LIN transceivers. Use Value: Withstands 10/1000µs pulses up to 6600W while maintaining <15µA leakage at 16V, minimizing standby current drain. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Safeguards image sensor and ISP power rails against battery line transients during cold-cranking and jump-starts. IC Role / Device Role / Timing Role: Front-end TVS on 12V input stage, upstream of LDOs and PMICs. Use Value: TJ = +175°C rating ensures stable clamping performance in sealed camera housings exposed to ambient >105°C. | Use Scenario: Protects gate drivers and current-sense amplifiers from motor back-EMF and load dump in 24V EPS systems. IC Role / Device Role / Timing Role: High-power TVS mounted directly to aluminum heatsink adjacent to half-bridge MOSFETs. Use Value: 0.9°C/W thermal resistance enables continuous operation at TC = +125°C during repeated steering assist cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | Lower PPK (400W), SMA package, RθJC ≈ 50°C/W, no AEC-Q101 qualification | Not suitable for load dump; limited to ISO 7637-2 Pulse 3 only | Select only for non-automotive, low-energy board-level protection |
| SMCJ16A-Q | PPK = 1500W, SMC package, AEC-Q101 qualified, RθJC ≈ 3.5°C/W | Meets ISO 7637-2 but not ISO 16750-2 load dump; derates above +85°C | Use where space allows larger SMC footprint and 1500W suffices |
Compared with SMAJ16A and SMCJ16A-Q, DM8W16AQ-13 delivers 4.4× higher peak power and 3.9× better thermal resistance, making it the only option rated for full ISO 16750-2 load dump in compact DO-218 form factor.
Availability
DM8W16AQ-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering designs requiring stable component supply across automotive production lifecycles.
Supply support for DM8W16AQ-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.
This device belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically for high-reliability transient suppression in 12V/24V vehicle electrical systems subject to ISO 7637-2 and ISO 16750-2 stress profiles.
FAQ
What is the maximum clamping voltage of DM8W16AQ-13 at its rated peak pulse current?
The maximum clamping voltage (VC) is 28.5V when subjected to a 10/1000µs waveform at IPP = 345A. This value is guaranteed across the full operating temperature range (–55°C to +175°C) and ensures downstream components remain within safe voltage limits during worst-case load dump events.
Is DM8W16AQ-13 suitable for bidirectional surge protection?
No - DM8W16AQ-13 is a unidirectional TVS diode with anode-connected heatsink and cathode lead. It conducts only during positive transients on the cathode relative to anode. For bidirectional protection, two devices must be used in series opposition or a dedicated bidirectional part like DM8W16CAQ-13 is required.
How does the DO-218 package improve thermal performance over standard SMC packages?
The DO-218 (Type E) package achieves RθJC = 0.9°C/W by integrating a large metal heatsink tab directly bonded to the silicon die. In contrast, standard SMC packages exhibit RθJC ≈ 3.5°C/W due to epoxy-molded leads and smaller thermal paths, limiting sustained power handling in high-temperature environments.
Does DM8W16AQ-13 require external current-limiting components in series?
No - it is designed for direct connection between battery rail and protected circuit. However, a series fuse or polyfuse is recommended upstream to clear catastrophic short-circuit failures. The device's low dynamic impedance ensures fast clamping without additional passive components in the surge path.
DM8W16AQ-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
DM8W16AQ-13 FAQ
1.How can I place an order for DM8W16AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM8W16AQ-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 DM8W16AQ-13 reliable?
The price and inventory of DM8W16AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM8W16AQ-13 is usually 5 days.
3.What payment methods are accepted for DM8W16AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM8W16AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM8W16AQ-13?
DM8W16AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM8W16AQ-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 DM8W16AQ-13?
For technical support, including DM8W16AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM8W16AQ-13 requirements.
6.How does Aetrix verify that DM8W16AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM8W16AQ-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 DM8W16AQ-13 meets industry standards.
7.What is the process for return or replacement of DM8W16AQ-13?
All DM8W16AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM8W16AQ-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 DM8W16AQ-13 part is unused and in its original packaging.
Return procedure for DM8W16AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM8W16AQ-13 Tags
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Diodes Incorporated
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