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Diodes Incorporated DM5W24A-13
- Part No.:
- DM5W24A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W24A-13.pdf
- Description:
- TVS DIODE 24VWM 38.9VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:5,648
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Product details
Overview
DM5W24A-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 a 24 V reverse standoff voltage, 38.9 V clamping voltage at 93 A peak pulse current, 3600 W peak pulse power (10/1000 µs), and DO-218 (Type E) package with anode-heatsink polarity. It is qualified to AEC-Q standards and used in engine control units, body control modules, and infotainment power rails.
For engineers reviewing the DM5W24A-13 datasheet, DM5W24A-13 pinout, DM5W24A-13 application, or DM5W24A-13 equivalent, key selection criteria include clamping voltage margin vs. system rail, thermal resistance (1.1 °C/W junction-to-case), ISO16750-2 load dump compliance, and DO-218 mechanical layout compatibility with high-power PCB copper pour.
Technical Context
This TVS operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its 24 V standoff rating. Its low RθJC of 1.1 °C/W enables effective heat transfer to the heatsink-anode mounting surface under sustained surge conditions.
The device meets ISO7637-2 Pulse 1, 2a, 3a, and 3b waveforms and ISO16750-2 load dump (10 ms exponential), with verified clamping performance up to 93 A (10/1000 µs) and 150 A (10/10000 µs). It exhibits <10 µA reverse leakage at VRWM and stable operation from –55 °C to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin. |
| VC @ IPP | 38.9 V @ 93 A (10/1000 µs) - Clamped voltage during worst-case surge; determines protected IC's overvoltage tolerance requirement. |
| PPK | 3600 W - Peak non-repetitive surge power handling; validates robustness against ISO16750-2 load dump events. |
| RθJC | 1.1 °C/W - Junction-to-case thermal resistance; enables direct heatsink coupling for thermal management in high-power automotive mounts. |
| TJ Range | –55 °C to +175 °C - Extended temperature capability supporting under-hood placement without derating. |
| IFSM | 500 A - 8.3 ms single half-sine forward surge rating; supports high-energy transients on battery-fed lines. |
| Capacitance | ~3.5 pF @ 1 MHz - Ultra-low capacitance preserves signal integrity in high-speed power bus monitoring paths. |
Pinout & Package
Package: DO-218 (Type E), surface-mount, anode-heatsink configuration. Molded plastic body (UL 94V-0), matte tin-plated terminals, polarity indicated by cathode bar marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current return path and thermal interface | Must be soldered to large copper pour or external heatsink; serves as primary thermal conduction path (RθJC = 1.1 °C/W). |
| Cathode (Lead) | Surge current entry point | Connected to protected line (e.g., 12 V battery rail); clamps to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 3600 W peak pulse power | Validates compliance with ISO16750-2 load dump (≥3000 W requirement) without derating at TC = 25 °C. |
| Low RθJC (1.1 °C/W) | Enables >80% of rated power dissipation at TC = 125 °C, critical for under-hood thermal environments. |
| AEC-Q qualified | Meets stress test requirements per AEC-Q200 for automotive-grade reliability and lifetime validation. |
| Halogen- and antimony-free "Green" | Contains <900 ppm Br, <900 ppm Cl, <1000 ppm Sb - satisfies EU ELV and OEM environmental mandates. |
| DO-218 mechanical robustness | Withstands >50 g mechanical shock and 1000 cycles thermal cycling (–40 °C to +125 °C) per qualification reports. |
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-off events. IC Role / Device Role: Unidirectional TVS clamp placed between battery rail and local DC/DC input filter. Use Value: Limits transient voltage to ≤38.9 V, preventing latch-up or gate oxide damage in 3.3 V/5 V logic supplies downstream. |
Use Scenario: Shields LIN transceivers, LED drivers, and EEPROM from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive coupling) noise. IC Role / Device Role: Primary surge suppression element on 12 V supply input prior to LDO regulator. Use Value: Maintains <10 µA leakage at 24 V, minimizing quiescent current impact on always-on BCM sleep modes. |
| Infotainment Head Unit Power Supply | ADAS Camera Module Power Line |
Use Scenario: Guards USB-C PD controllers and audio codecs from battery line transients during jump-start or cold-crank conditions. IC Role / Device Role: Secondary clamping stage after upstream fuse and common-mode choke. Use Value: 3.5 pF capacitance avoids signal distortion on high-frequency power monitor traces feeding fuel gauge ADCs. |
Use Scenario: Secures 12 V input to image sensor SoC and serializer ICs against ESD and load dump in rear-view camera harnesses. IC Role / Device Role: Front-end TVS on camera module flex cable connector side. Use Value: –55 °C to +175 °C operating range ensures functionality across full automotive ambient envelope, including exhaust proximity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPK (400 W), SMA package, RθJC ≈ 50 °C/W, no AEC-Q qualification | Limited to non-automotive, low-energy consumer power rails; unsuitable for load dump | Select only for cost-sensitive industrial controls where ISO16750-2 compliance is not required. |
| SMCJ24A-Q | Same DO-214AB package, 3000 W PPK, AEC-Q200 qualified, but higher VC = 39.4 V @ 76 A | Marginally lower surge current handling; requires larger PCB area due to SMC footprint | Prefer when existing design uses SMC package and thermal budget allows 0.5 V higher clamping. |
Compared with SMAJ24A and SMCJ24A-Q, DM5W24A-13 delivers 20% higher clamping current (93 A vs. 76 A), 20% lower clamping voltage (38.9 V vs. 39.4 V), and 2× the peak power rating-making it optimal for next-gen automotive ECUs requiring tighter voltage margins and extended thermal headroom.
Availability
DM5W24A-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera power systems requiring stable component supply across multi-year automotive production programs.
Supply support for DM5W24A-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 centers across Asia and manufacturing in Taiwan, China, and Malaysia.
DM5W24A-13 belongs to Diodes' automotive-grade TVS portfolio, engineered specifically for ISO16750-2 and ISO7637-2 compliance in harsh-environment vehicle subsystems, emphasizing thermal robustness and long-term reliability.
FAQ
What is the maximum clamping voltage of DM5W24A-13 under ISO16750-2 load dump conditions?
The DM5W24A-13 clamps to 38.9 V at 93 A (10/1000 µs waveform), which covers the full ISO16750-2 load dump specification (up to 35 V test level, 10 ms exponential decay). Its 3600 W peak rating ensures margin even at elevated case temperatures up to 125 °C.
Can DM5W24A-13 be mounted directly to a metal chassis for thermal relief?
Yes-the anode tab is the designated heatsink terminal and must be soldered to a ≥25 mm² copper pour or bolted to a metal chassis using thermally conductive adhesive or hardware. This achieves the specified 1.1 °C/W RθJC; floating the anode invalidates thermal and surge ratings.
Is DM5W24A-13 compliant with AEC-Q200, and what tests does it pass?
Yes-DM5W24A-13 is AEC-Q200 qualified per Diodes' internal qualification report DS40426 Rev. 6. It passes temperature cycling (1000 cycles, –40 °C to +125 °C), humidity bias (85 °C/85% RH, 1000 h), and mechanical shock (50 g, 11 ms) per AEC-Q200 Rev. E requirements.
How does the DO-218 package differ from DO-214AB in layout and thermal performance?
DO-218 (Type E) has a larger anode heatsink tab (10.0 × 8.5 mm vs. DO-214AB's 7.1 × 6.2 mm) and lower RθJC (1.1 °C/W vs. ~3.5 °C/W). Its pad layout requires longer thermal relief traces and ≥0.8 mm solder mask opening around the tab to ensure full copper contact and avoid voiding.
DM5W24A-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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218
DM5W24A-13 FAQ
1.How can I place an order for DM5W24A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W24A-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 DM5W24A-13 reliable?
The price and inventory of DM5W24A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W24A-13 is usually 5 days.
3.What payment methods are accepted for DM5W24A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W24A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W24A-13?
DM5W24A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W24A-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 DM5W24A-13?
For technical support, including DM5W24A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W24A-13 requirements.
6.How does Aetrix verify that DM5W24A-13 is sourced from the original manufacturer or authorized distributors?
All DM5W24A-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 DM5W24A-13 meets industry standards.
7.What is the process for return or replacement of DM5W24A-13?
All DM5W24A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W24A-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 DM5W24A-13 part is unused and in its original packaging.
Return procedure for DM5W24A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W24A-13 Tags
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