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Diodes Incorporated DM5W26AQ-13
- Part No.:
- DM5W26AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W26AQ-13.pdf
- Description:
- TVS DIODE 26VWM 42.1VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:9,303
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Product details
Overview
DM5W26AQ-13 from Diodes Incorporated is a 3600W surface-mount transient voltage suppressor (TVS) diode in DO-218 (Type E) package, designed for automotive load dump and ISO7637-2 surge protection. It features 26V reverse standoff voltage (VRWM), 42.1V max clamping voltage at 86A peak pulse current (10/1000µs), and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the DM5W26AQ-13 datasheet, DM5W26AQ-13 pinout, DM5W26AQ-13 application, or DM5W26AQ-13 equivalent, key selection criteria include clamping performance at 86A, thermal resistance (RθJC = 1.1°C/W), ISO16750-2 Pulse A/B compliance, and heatsink-anode polarity configuration in high-power automotive power rail protection.
Technical Context
This unidirectional TVS diode operates with anode-connected heatsink polarity and delivers 3600W non-repetitive peak pulse power at TA = +25°C, derating linearly above that temperature per Figure 1. Its 26V VRWM and 28.9–31.9V VBR range ensure precise overvoltage thresholding for 24V nominal automotive systems.
The device sustains 500A IFSM (8.3ms half-sine) and exhibits low 10µA max reverse leakage at VRWM up to +175°C junction temperature. Its 1.1°C/W junction-to-case thermal resistance enables direct mounting to PCB copper pour or metal heatsinks for effective transient energy dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 26V - Stable reverse blocking voltage before breakdown; sets minimum system operating margin for 24V automotive rails. |
| VBR @ IT=5mA | 28.9–31.9V - Confirmed avalanche onset range; ensures predictable turn-on during transients without premature conduction. |
| VC @ IPP=86A | 42.1V - Maximum clamped voltage during 10/1000µs surge; limits downstream IC stress to safe levels. |
| PPK | 3600W - Peak pulse power handling capability; meets ISO16750-2 Load Dump requirement for 24V systems. |
| 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 coverage; supports engine bay placement without derating. |
| IFSM | 500A - Surge current rating for 8.3ms half-sine waveform; validates robustness against alternator load dump events. |
Pinout & Package
Package: DO-218 (Type E), surface-mount molded plastic case (UL 94V-0), heatsink tab serves as anode terminal. Polarity marked by cathode bar on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive surge current path | Electrically connected to large metal tab; must be soldered to thermal pad or heatsink for RθJC performance. |
| Cathode (Lead) | Negative surge current path | Standard lead termination; connects to protected line (e.g., battery feed); clamping occurs between this and anode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use with full PPAP support and IATF 16949 manufacturing control. |
| ISO16750-2 & ISO7637-2 compliant | Passes Pulse A, Pulse B, Pulse 1, Pulse 2a, Pulse 3a, and Pulse 3b test profiles without degradation. |
| Low thermal resistance (1.1°C/W) | Enables >90% of rated PPK to be dissipated without exceeding TJ(max) when mounted to ≥250mm² 2oz Cu. |
| Lead-free, halogen-free "Green" construction | Meets RoHS 3 (2015/863/EU) and Diodes' <900ppm Br/Cl, <1000ppm Sb definition for environmental compliance. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects microcontroller, CAN transceivers, and analog sensors from alternator load dump surges during ignition cycling. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and local DC/DC input; clamps transients within 10ns to limit voltage excursion to ≤42.1V. Use Value: Prevents latch-up or gate oxide damage in 3.3V/5V LDOs and MCU I/Os by holding rail voltage below 45V during 3600W surge events. | Use Scenario: Shields LIN bus transceivers, door lock actuators, and lighting drivers from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive discharge). IC Role / Device Role / Timing Role: Mounted directly at BCM main power entry point; absorbs negative-going transients with 10µA leakage at 26V to minimize standby current loss. Use Value: Maintains functional safety integrity by limiting transient-induced reset events and ensuring continuous communication during vehicle power cycling. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Safeguards image sensor and SerDes interface from battery line transients during start-stop operation and jump-start conditions. IC Role / Device Role / Timing Role: Placed upstream of buck converter; clamps 10/1000µs surges to 42.1V while sustaining 86A peak current without thermal runaway. Use Value: Eliminates video corruption or frame loss caused by supply rail collapse during ISO16750-2 Pulse A (load dump) events. | Use Scenario: Protects H-bridge gate drivers and current sense amplifiers from inductive kickback during EPS motor commutation and emergency shutdown. IC Role / Device Role / Timing Role: Connected across motor driver high-side supply rail; conducts surge current through heatsink tab to ground plane with 1.1°C/W thermal path. Use Value: Avoids false overcurrent faults and MOSFET short-circuit failures by limiting voltage overshoot to <45V during 500A IFSM-rated switching events. |
Availability
DM5W26AQ-13 is available at Aetrix Electronics and suitable for automotive ECU power protection, body control module (BCM) battery rail conditioning, and ADAS camera power supply designs requiring stable component supply and AEC-Q101-compliant surge immunity.
Supply support for DM5W26AQ-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 with IATF 16949-certified facilities.
The DM5WxxAQ series belongs to Diodes' automotive-grade TVS portfolio, engineered specifically for ISO16750-2 and ISO7637-2 compliance in 24V vehicle architectures, emphasizing thermal robustness and surge repeatability.
FAQ
What is the correct PCB layout for optimal thermal performance of DM5W26AQ-13?
The anode (heatsink tab) must be soldered to a minimum 250 mm² copper area (2 oz thickness) with ≥4 thermal vias (0.3mm diameter) connecting to inner ground planes. Pad dimensions follow Diodes' DO-218 Type E outline: 13.5mm × 8.5mm tab with 3.5mm × 11.0mm recommended stencil aperture. Avoid solder mask over the tab to maximize thermal conduction.
Does DM5W26AQ-13 support bidirectional surge suppression?
No - DM5W26AQ-13 is a unidirectional TVS diode with anode-connected heatsink polarity. It protects only against positive transients on the cathode line relative to the anode/heatsink. For bidirectional protection, a separate device or a dedicated bidirectional TVS (e.g., DM5W26BQ-13) is required.
How does DM5W26AQ-13 perform under repeated surge stress?
Per DS41000 Rev. 7–2, it withstands up to 4 pulses per minute at rated PPK (3600W) without parameter shift, provided TC ≤ +25°C and thermal design maintains TJ ≤ +175°C. Derating curves (Figure 1 & 2) show 2800W capability at TC = +100°C, confirming suitability for cyclic under-hood environments.
Is DM5W26AQ-13 compatible with lead-free reflow profiles?
Yes - it is qualified for JEDEC J-STD-020 Level 1 moisture sensitivity and supports standard lead-free reflow profiles (peak 260°C, 20–40 sec above 217°C). Matte tin plating ensures solderability per MIL-STD-202 Method 208, and UL 94V-0 molding compound resists thermal cracking during thermal cycling.
DM5W26AQ-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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 86A
- Power - Peak Pulse:
- 3600W (3.6kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218
DM5W26AQ-13 FAQ
1.How can I place an order for DM5W26AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W26AQ-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 DM5W26AQ-13 reliable?
The price and inventory of DM5W26AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W26AQ-13 is usually 5 days.
3.What payment methods are accepted for DM5W26AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W26AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W26AQ-13?
DM5W26AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W26AQ-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 DM5W26AQ-13?
For technical support, including DM5W26AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W26AQ-13 requirements.
6.How does Aetrix verify that DM5W26AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM5W26AQ-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 DM5W26AQ-13 meets industry standards.
7.What is the process for return or replacement of DM5W26AQ-13?
All DM5W26AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W26AQ-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 DM5W26AQ-13 part is unused and in its original packaging.
Return procedure for DM5W26AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W26AQ-13 Tags
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