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Diodes Incorporated DM6W30AQ-13
- Part No.:
- DM6W30AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W30AQ-13.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:9,175
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Product details
Overview
DM6W30AQ-13 from Diodes Incorporated is a DO-218 (Type E) surface-mount transient voltage suppressor (TVS) diode designed for automotive load-dump and ISO7637-2 surge protection. It features a 30 V reverse standoff voltage (VRWM), 48.4 V maximum clamping voltage (VC) at 95 A peak pulse current, and 4600 W peak pulse power dissipation (10/1000 µs). Its heatsink-anode polarity and AEC-Q101 qualification make it suitable for under-hood engine control units and battery management systems.
For engineers reviewing the DM6W30AQ-13 datasheet, DM6W30AQ-13 pinout, DM6W30AQ-13 application, or DM6W30AQ-13 equivalent, key selection criteria include clamping performance at 95 A IPP, thermal resistance of 1.0 °C/W (junction-to-case), compliance with ISO16750-2 Pulse A/B and ISO7637-2 Pulse 1/2a/3a/3b, and DO-218 package mounting requirements for high-power automotive PCB layouts.
Technical Context
This unidirectional TVS diode operates as a clamping device in parallel with sensitive automotive electronics, conducting only when reverse voltage exceeds its 33.3–36.8 V breakdown range (VBR @ 5 mA). Its low 1.0 °C/W RθJC enables effective heat transfer to the heatsink-anode during 4600 W transient events.
The device sustains 600 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and maintains <150 µA reverse leakage at VRWM up to +175 °C junction temperature, supporting operation in harsh under-hood environments where thermal stability is critical for long-term reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; sets system-level overvoltage trip threshold. |
| VBR min/max | 33.3 V / 36.8 V - Breakdown occurs within this band at 5 mA test current; defines turn-on consistency across production lots. |
| VC @ IPP | 48.4 V @ 95 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected ICs. |
| PPK | 4600 W - Peak pulse power handling capability; supports full ISO16750-2 load-dump energy without failure. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; enables direct heatsink coupling for sustained 6 W average power dissipation. |
| TJ range | −55 °C to +175 °C - Operating junction temperature range; validated for under-hood automotive deployment. |
Pinout & Package
Package: DO-218 (Type E), surface-mount molded plastic case with heatsink-anode polarity. Anode terminal is electrically connected to the metal tab/heatsink; cathode is the leaded terminal. Polarity marked by bar symbol on cathode side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive surge return path | Primary thermal interface and current return node; must be soldered to large copper pour or heatsink for RθJC = 1.0 °C/W performance. |
| Cathode (Lead) | Surge sensing and clamping node | Connected to protected line (e.g., 12 V rail); reverse-biased until VRWM exceeded, then conducts to clamp transients. |
Key Features
| Feature | Design Value |
|---|---|
| 4600 W peak pulse power | Handles full ISO16750-2 load-dump surges (up to 35 V, 100 ms) without degradation when properly heatsinked. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity testing, and mechanical shock per AEC specification. |
| Low RθJC = 1.0 °C/W | Enables >90% of surge energy to dissipate via heatsink rather than PCB traces, reducing board-level thermal stress. |
| RoHS & Halogen-Free | Complies with EU RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb). |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Battery Management System (BMS) |
|---|---|
|
Use Scenario: Protects microcontroller power rails from alternator load-dump transients during battery disconnection. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 12 V input and ground, with anode tied to chassis ground via heatsink. Use Value: Limits voltage to ≤48.4 V during 4600 W surges, preventing latch-up or gate oxide damage in downstream PMICs and MCUs. |
Use Scenario: Shields BMS analog front-end and cell monitor ICs from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive coupling) noise. IC Role / Device Role / Timing Role: Fast-response transient suppressor on HV battery sense lines and CAN bus power rails. Use Value: Maintains <150 µA leakage at 30 V VRWM across −40 °C to +125 °C ambient, ensuring signal integrity in precision voltage monitoring. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Electric Power Steering (EPS) Motor Controller |
|
Use Scenario: Guards image sensor supply and MIPI interface power against ignition-induced transients in front-end camera housings. IC Role / Device Role / Timing Role: Primary overvoltage protection element on 5 V or 3.3 V camera rail, mounted directly to metal housing for thermal conduction. Use Value: Achieves 48.4 V clamping at 95 A with <1 ns response time, preserving pixel data integrity during ESD-like edge transients. |
Use Scenario: Safeguards gate drivers and current-sense amplifiers in EPS H-bridge controllers exposed to motor back-EMF spikes. IC Role / Device Role / Timing Role: High-energy TVS on 12 V logic supply and isolated gate drive rails, leveraging DO-218 thermal mass. Use Value: Withstands 600 A IFSM (8.3 ms) without parametric shift, ensuring uninterrupted torque control during aggressive steering maneuvers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | DO-214AC package; 400 W PPK; 48.4 V VC @ 38.9 A IPP; RθJC ≈ 50 °C/W | Limited to lower-energy ISO7637-2 Pulse 3 only; unsuitable for load-dump (ISO16750-2) | Select when space-constrained layouts prohibit DO-218 and surge energy is <500 W. |
| SMCJ30A | DO-214AB package; 1500 W PPK; 48.4 V VC @ 65.5 A IPP; RθJC ≈ 10 °C/W | Meets ISO7637-2 but not full ISO16750-2 load-dump; requires larger heatsink for same thermal performance | Choose for cost-sensitive industrial applications where 4600 W headroom is unnecessary. |
Compared with SMAJ30A and SMCJ30A, DM6W30AQ-13 delivers 3× higher peak power and 50× lower thermal resistance-enabling single-device load-dump protection without external heatsink augmentation in space-constrained automotive modules.
Availability
DM6W30AQ-13 is available at Aetrix Electronics and suitable for engine control units, battery management systems, ADAS camera modules, and electric power steering controllers requiring stable component supply across extended automotive product lifecycles.
Supply support for DM6W30AQ-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 since 1960.
The DM6WxxAQ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically to meet ISO16750-2 load-dump and ISO7637-2 surge immunity requirements in under-hood and chassis-mounted electronic control units.
FAQ
What is the correct PCB layout for optimal thermal performance of DM6W30AQ-13?
Optimal thermal performance requires soldering the anode (heatsink tab) to a minimum 25 mm² copper pour connected to internal ground plane layers via ≥4 thermal vias (0.3 mm diameter, filled). The suggested pad layout (X = 3.50 mm, Y = 3.00 mm, Y2 = 15.80 mm) must be followed per Diodes' package outline DOC-218E. Avoid silkscreen over the tab and ensure no solder mask coverage on the anode surface.
Does DM6W30AQ-13 support bidirectional transient suppression?
No. DM6W30AQ-13 is a unidirectional TVS diode with anode-heatsink polarity. It clamps only reverse-voltage transients on the cathode-connected line. For bidirectional protection (e.g., data lines), a separate symmetric TVS array or dual-diode configuration is required. Its electrical characteristics table confirms single-polarity parameters (VRWM, VBR, VC) with no symmetrical ratings.
How does DM6W30AQ-13 perform at elevated junction temperatures?
At TJ = +175 °C, DM6W30AQ-13 maintains ≤150 µA reverse leakage at VRWM and retains full 4600 W PPK capability when derated per Figure 1 (power derating curve). Its silicon process ensures VBR drift <5% across −55 °C to +175 °C, critical for consistent clamping in under-hood environments where case temperatures exceed 125 °C.
Is DM6W30AQ-13 compatible with lead-free reflow profiles?
Yes. DM6W30AQ-13 uses matte tin-plated terminals compliant with J-STD-020 moisture sensitivity level 1 and rated for peak reflow temperatures up to 260 °C. Its molded plastic body meets UL 94V-0 flammability rating, and the device passes Diodes' standard lead-free assembly validation including thermal cycling and intermetallic growth testing per IPC-J-STD-020.
DM6W30AQ-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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 95A
- Power - Peak Pulse:
- 4600W (4.6kW)
- 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
DM6W30AQ-13 FAQ
1.How can I place an order for DM6W30AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W30AQ-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 DM6W30AQ-13 reliable?
The price and inventory of DM6W30AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W30AQ-13 is usually 5 days.
3.What payment methods are accepted for DM6W30AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W30AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W30AQ-13?
DM6W30AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W30AQ-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 DM6W30AQ-13?
For technical support, including DM6W30AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W30AQ-13 requirements.
6.How does Aetrix verify that DM6W30AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM6W30AQ-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 DM6W30AQ-13 meets industry standards.
7.What is the process for return or replacement of DM6W30AQ-13?
All DM6W30AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W30AQ-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 DM6W30AQ-13 part is unused and in its original packaging.
Return procedure for DM6W30AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W30AQ-13 Tags
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