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Diodes Incorporated DM5W24AQ-13
- Part No.:
- DM5W24AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W24AQ-13.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:429
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Product details
Overview
DM5W24AQ-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 24V reverse standoff voltage (VRWM), 26.7–29.5V breakdown voltage (VBR), 38.9V clamping voltage (VC) at 93A peak pulse current, and AEC-Q101 qualification for under-hood power rail protection.
For engineers reviewing the DM5W24AQ-13 datasheet, DM5W24AQ-13 pinout, DM5W24AQ-13 application, or DM5W24AQ-13 equivalent, key selection criteria include clamping performance at 93A (10/1000µs), thermal resistance (RθJC = 1.1°C/W), ISO16750-2 Pulse A/B compliance, and heatsink-anode polarity configuration in high-power automotive transients.
Technical Context
This unidirectional TVS diode operates as a clamping device across DC power rails, activating above 24V VRWM to shunt surge energy to ground. Its low RθJC (1.1°C/W) enables sustained 5W average power dissipation at TC = +25°C while maintaining operation up to TJ = +175°C.
The device meets ISO16750-2 Load Dump (Pulse A, B) and ISO7637-2 (Pulse 1, 2a, 3a, 3b) requirements via 3600W non-repetitive peak pulse power handling at 10/1000µs waveform and 500A IFSM capability under 8.3ms half-sine surge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - Maximum continuous operating voltage before clamping begins; sets minimum system overvoltage threshold. |
| VBR @ IT=5mA | 26.7–29.5 V - Breakdown onset range; ensures reliable turn-on margin above VRWM for robust surge response. |
| VC @ IPP=93A | 38.9 V - Clamped voltage during 10/1000µs surge; defines maximum stress on downstream circuitry. |
| PPK | 3600 W - Peak pulse power rating; supports single-event load dump surges per ISO16750-2 without failure. |
| RθJC | 1.1 °C/W - Junction-to-case thermal resistance; enables efficient heat transfer to heatsink for sustained 5W PM(AV) operation. |
| TJ Range | −55 to +175 °C - Full automotive temperature range; validated for under-hood environments with thermal cycling. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability including HTOL, TCT, and surge life testing per AEC standard. |
Pinout & Package
Package: DO-218 (Type E), surface-mount, molded plastic (UL 94V-0), heatsink-is-anode construction, 2.74g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink) | Positive input / Power rail connection | Electrically connected to metal heatsink tab; must be mounted to thermally conductive plane for RθJC performance. |
| Cathode | Surge return path / Ground reference | Connected to chassis or system ground; carries full 93A transient current during clamping event. |
Key Features
| Feature | Design Value |
|---|---|
| 3600W peak pulse power | Handles ISO16750-2 load dump surges (up to 35V × 100A equivalent) without degradation in single-event conditions. |
| Low clamping ratio (VC/VRWM = 1.62) | Minimizes overvoltage stress on protected ICs (e.g., MCU power supplies, CAN transceivers) during transients. |
| Heatsink-as-anode topology | Enables direct thermal coupling to PCB copper pour or external heatsink while simplifying layout polarity awareness. |
| AEC-Q101 qualification & PPAP capability | Validated for automotive production use with documented change control, IATF 16949 manufacturing, and traceable lot data. |
| RoHS 3 & Halogen-free | Meets EU Directive 2015/863/EU (<900ppm Br/Cl, <1000ppm Sb); supports green manufacturing and end-of-life compliance. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects 12V supply inputs of engine management ECUs against alternator load dump spikes (ISO16750-2 Pulse A, up to 35V/100ms). IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery feed and LDO/regulator input. Use Value: Limits transient voltage to ≤38.9V, preventing damage to 40V-rated power management ICs and ensuring uninterrupted MCU operation. |
Use Scenario: Shields BCM microcontroller and CAN transceiver power rails from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive discharge) events. IC Role / Device Role / Timing Role: Fast-response surge suppressor installed at main 12V entry point before local DC/DC conversion. Use Value: Clamps 93A pulses within 10/1000µs window, reducing voltage overshoot by >50% compared to standard Zener-based protection. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Safeguards 5V/3.3V camera module power derived from vehicle battery via buck converter against coupled transients. IC Role / Device Role / Timing Role: Secondary-level TVS on intermediate rail, coordinated with primary DM5W24AQ-13 at battery input. Use Value: Maintains <1µs response time and <10µA IR at 24V, avoiding leakage-induced dropout in always-on imaging systems. |
Use Scenario: Protects H-bridge gate drivers and current sense amplifiers in EPS motor control units exposed to high-energy back-EMF. IC Role / Device Role / Timing Role: High-current TVS mounted directly on motor driver PCB heatsink, anode tied to chassis ground plane. Use Value: Dissipates 3600W surges with 1.1°C/W thermal path, enabling >100k-cycle surge endurance without parameter drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional automotive TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPK (400W), SMA package (RθJC ≈ 45°C/W), 38.9V VC @ 10.3A IPP | Not suitable for ISO16750-2 load dump; limited to ISO7637-2 Pulse 1/2a only | Select when space-constrained and surge energy is <500W; requires additional parallel devices for load dump duty. |
| SMCJ24A | Higher PPK (1500W), SMC package (RθJC ≈ 12°C/W), 38.9V VC @ 38.5A IPP | Meets ISO7637-2 fully but fails ISO16750-2 Pulse A due to insufficient 3600W headroom | Use where cost is critical and load dump events are mitigated externally (e.g., with alternator regulators). |
Compared with SMAJ24A and SMCJ24A, DM5W24AQ-13 uniquely delivers full ISO16750-2 compliance in a surface-mount DO-218 package with 3.3× higher peak power and 10× lower thermal resistance-enabling single-device load dump protection without derating or heatsink augmentation.
Availability
DM5W24AQ-13 is available at Aetrix Electronics and suitable for automotive ECU power protection, body electronics surge suppression, ADAS camera power conditioning, and electric power steering systems requiring stable component supply across extended temperature and high-reliability production cycles.
Supply support for DM5W24AQ-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers across Asia, Europe, and the US and manufacturing certified to IATF 16949.
The DM5WxxAQ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically for high-energy load dump and ISO7637-2 transient immunity in 12V/24V vehicle electrical architectures.
FAQ
What is the maximum clamping voltage of DM5W24AQ-13 at rated peak current?
The maximum clamping voltage (VC) is 38.9 V at 93 A peak pulse current (IPP) under 10/1000 µs waveform conditions, measured per JEDEC standards. This value is guaranteed across the full operating temperature range (−55°C to +175°C) and defines the upper voltage limit imposed on protected circuitry during surge events.
How does the DO-218 (Type E) package improve thermal performance over SMA or SMC packages?
The DO-218 (Type E) package integrates the anode directly into a large metal heatsink tab, achieving RθJC = 1.1°C/W-over 40× better than SMAJ24A (45°C/W) and ~11× better than SMCJ24A (12°C/W). This allows full 3600W surge dissipation without external heatsink augmentation and supports continuous 5W average power at TC = +25°C.
Is DM5W24AQ-13 suitable for bidirectional surge protection?
No. DM5W24AQ-13 is a unidirectional TVS diode with anode-heatsink polarity and specified only for positive-going transients on 12V/24V DC rails. For bidirectional protection (e.g., data lines), Diodes offers separate series like D24Z1 or AP7XXX family; this part must be used with correct orientation relative to system ground.
What evidence confirms AEC-Q101 qualification for DM5W24AQ-13?
AEC-Q101 qualification is documented in Diodes' official product definition (https://www.diodes.com/quality/product-definitions/) and referenced in DS41000 Rev. 7–2, which states "these parts are AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities." Test reports cover HTOL, TCT, ESD, and surge life per AEC-Q101 Rev. G requirements.
DM5W24AQ-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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 93A
- 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
DM5W24AQ-13 FAQ
1.How can I place an order for DM5W24AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W24AQ-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 DM5W24AQ-13 reliable?
The price and inventory of DM5W24AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W24AQ-13 is usually 5 days.
3.What payment methods are accepted for DM5W24AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W24AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W24AQ-13?
DM5W24AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W24AQ-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 DM5W24AQ-13?
For technical support, including DM5W24AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W24AQ-13 requirements.
6.How does Aetrix verify that DM5W24AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM5W24AQ-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 DM5W24AQ-13 meets industry standards.
7.What is the process for return or replacement of DM5W24AQ-13?
All DM5W24AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W24AQ-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 DM5W24AQ-13 part is unused and in its original packaging.
Return procedure for DM5W24AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W24AQ-13 Tags
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