Diodes Incorporated DM6W13AQ-13
- Part No.:
- DM6W13AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
DM6W13AQ-13.pdf
- Description:
- TVS DO-218
- Quantity:
- Payment:

- Shipping:

Inventory:3,202
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Product details
Overview
DM6W13AQ-13 from Diodes Incorporated is a surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump and ISO 7637-2 surge protection in high-reliability power rail applications. It delivers 4600W peak pulse power at 10/1000µs, features a 13V reverse standoff voltage (VRWM), clamps to ≤21.5V at 214A peak pulse current, and operates from –55°C to +175°C - enabling robust protection in engine control units and battery management systems.
For engineers reviewing the DM6W13AQ-13 datasheet, DM6W13AQ-13 pinout, DM6W13AQ-13 application, or DM6W13AQ-13 equivalent, key selection criteria include its DO-218 package thermal resistance (RθJC = 1.0°C/W), low leakage (<10µA @ VRWM), ISO16750-2 compliance, and AEC-Q qualified reliability for under-hood automotive electronics.
Technical Context
This unidirectional TVS diode uses an avalanche breakdown structure optimized for fast response (<1.0ns) to high-energy transients. Its DO-218 (Type E) package integrates a heatsink-anode configuration, enabling direct mounting to PCB copper for efficient thermal dissipation during 8.3ms load dump events.
The device meets ISO 7637-2 Pulse 1, 2a, 3a, and 3b waveforms and complies with ISO16750-2 Category III/IV load dump requirements. Electrical behavior is characterized by tight VBR tolerance (14.4–15.9V at 5mA), low clamping ratio (VC/VRWM ≈ 1.65), and stable performance up to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 4600W (10/1000µs waveform) - sustains automotive load dump surges without failure |
| Reverse Standoff Voltage | 13V - sets minimum operating voltage threshold before clamping activates |
| Breakdown Voltage | 14.4–15.9V @ 5mA - ensures reliable turn-on margin above VRWM for noise immunity |
| Clamping Voltage | ≤21.5V @ 214A - limits downstream IC voltage stress during worst-case surge |
| Junction-to-Case Thermal Resistance | 1.0°C/W - enables effective heat transfer to heatsink or large copper pour |
| Operating Temperature Range | –55°C to +175°C - supports placement near engines or in high-ambient under-hood locations |
| Leakage Current | ≤10µA @ VRWM, ≤150µA @ +175°C - minimizes standby power loss in always-on systems |
Pinout & Package
Package: DO-218 (Type E), surface-mount, heatsink-anode configuration. Anode terminal connects to case/heatsink; cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink) | Current return path and thermal interface | Must be soldered to ≥250mm² copper pour or external heatsink for RθJC = 1.0°C/W performance |
| Cathode | Transient current sink | Connected to protected line (e.g., 12V rail); clamps to safe voltage when surge exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q200 qualified - validated for vibration, thermal cycling, and humidity exposure in vehicle environments |
| Low thermal resistance | RθJC = 1.0°C/W - reduces junction temperature rise by >50% vs. standard SMA packages under same surge conditions |
| High surge current capability | 600A IFSM (8.3ms half-sine) - withstands repeated load dump events without degradation |
| Green construction | Halogen- and antimony-free, RoHS 3 compliant - meets global environmental compliance mandates |
| Stable high-temp leakage | ≤150µA @ +175°C - avoids false triggering or excessive quiescent loss in hot under-hood zones |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Supply |
|---|---|
Use Scenario: Protects 12V input rail against alternator load dump surges during battery disconnection. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed upstream of DC/DC converters and microcontrollers. Use Value: Limits voltage to ≤21.5V during 100V/400ms load dump, preventing damage to 36V-rated input stages. |
Use Scenario: Shields 5V/3.3V CAN transceiver supply rails from coupled transients on shared vehicle battery lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on BCM power domain feeding isolated CAN PHYs. Use Value: Clamps within 1ns to protect 5V regulators with <100ns response requirement per ISO 7637-2 Pulse 3b. |
| Electric Power Steering (EPS) Motor Driver | Battery Management System (BMS) Front-End |
Use Scenario: Safeguards high-current H-bridge gate drivers and current sense amplifiers from inductive kickback and load dump. IC Role / Device Role / Timing Role: High-power TVS mounted directly on motor driver PCB heatsink plane. Use Value: Dissipates 4600W peak energy without thermal runaway, maintaining driver IC operation during 120V/100ms surges. |
Use Scenario: Guards BMS analog front-end (AFE) and cell monitoring ICs against battery line transients during jump-start or fault clearing. IC Role / Device Role / Timing Role: First-line protection on main pack voltage input before isolation and regulation stages. Use Value: Maintains ≤13V standby leakage to avoid self-discharge in parked vehicles while surviving ISO16750-2 Category IV pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13A-Q | Lower peak power (400W), SMA package, RθJC = 45°C/W | Not suitable for load dump; limited to ISO 7637-2 Pulse 1/2a only | Select only for cost-sensitive non-load-dump applications with <100A surge exposure |
| SMCJ13A-Q | Same 13V VRWM but lower PPK (1500W), SMC package, RθJC = 2.5°C/W | Meets ISO 7637-2 but fails ISO16750-2 Category IV load dump testing | Acceptable for mid-tier ECUs where full 4600W rating is not mandated by OEM spec |
Compared with SMAJ13A-Q and SMCJ13A-Q, DM6W13AQ-13 uniquely supports full ISO16750-2 Category IV load dump (120V/400ms) due to its DO-218 thermal design and 4600W rating - making it mandatory for premium automotive power modules requiring AEC-Q200 and functional safety alignment.
Availability
DM6W13AQ-13 is available at Aetrix Electronics and suitable for engine control units, battery management systems, electric power steering modules, and body control modules requiring stable component supply across multi-year automotive production cycles.
Supply support for DM6W13AQ-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 integrated circuits, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.
DM6W13AQ-13 belongs to Diodes' automotive-grade TVS diode product line, engineered specifically for high-energy transient suppression in 12V/24V vehicle electrical systems - emphasizing thermal robustness, AEC-Q200 compliance, and ISO standard conformance.
FAQ
What is the maximum clamping voltage for DM6W13AQ-13 at rated peak pulse current?
The maximum clamping voltage (VC) is 21.5V at 214A peak pulse current under 10/1000µs waveform conditions. This value is guaranteed across the full operating temperature range (–55°C to +175°C) and ensures downstream components see no more than 21.5V during surge events, preserving reliability of 24V-tolerant ICs.
How does the DO-218 package improve thermal performance over standard SMC or SMA packages?
The DO-218 (Type E) package features an integrated metal heatsink-anode that provides direct thermal conduction to PCB copper. With RθJC = 1.0°C/W - over 2× better than SMC (2.5°C/W) and 45× better than SMA (45°C/W) - it maintains junction temperatures below 150°C during repeated 4600W surges, preventing parametric shift or failure.
Is DM6W13AQ-13 qualified for use in ASIL-B or ASIL-C automotive safety systems?
While DM6W13AQ-13 is AEC-Q200 qualified and widely used in ASIL-B/C domains (e.g., EPS, BMS), it is not individually certified to ISO 26262. Its role is as a hardware safety element (HSE); system-level FMEDA and fault injection testing must be performed by the integrator to claim ASIL compliance per ISO 26262-5.
Can DM6W13AQ-13 replace DM6W13A in existing designs?
Yes - DM6W13AQ-13 is the automotive-qualified version of DM6W13A, sharing identical electrical specs, DO-218 package, and pinout. The "Q" suffix denotes AEC-Q200 qualification, extended temperature screening, and enhanced traceability; no layout or schematic changes are required for drop-in replacement in new or legacy automotive designs.
DM6W13AQ-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:
- -
DM6W13AQ-13 FAQ
1.How can I place an order for DM6W13AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W13AQ-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 DM6W13AQ-13 reliable?
The price and inventory of DM6W13AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W13AQ-13 is usually 5 days.
3.What payment methods are accepted for DM6W13AQ-13?
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Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W13AQ-13?
DM6W13AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W13AQ-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 DM6W13AQ-13?
For technical support, including DM6W13AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W13AQ-13 requirements.
6.How does Aetrix verify that DM6W13AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM6W13AQ-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 DM6W13AQ-13 meets industry standards.
7.What is the process for return or replacement of DM6W13AQ-13?
All DM6W13AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W13AQ-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 DM6W13AQ-13 part is unused and in its original packaging.
Return procedure for DM6W13AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W13AQ-13 Tags

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