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Diodes Incorporated DM5W30A-13
- Part No.:
- DM5W30A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W30A-13.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:2,330
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Product details
Overview
DM5W30A-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 30 V reverse standoff voltage, 48.4 V maximum clamping voltage at 74 A peak pulse current, 3600 W peak pulse power (10/1000 µs), and DO-218 package with anode-heatsink polarity. It is qualified to AEC-Q standards and used in 12 V automotive power rail protection.
For engineers reviewing the DM5W30A-13 datasheet, DM5W30A-13 pinout, DM5W30A-13 application, or DM5W30A-13 equivalent, this part delivers verified ISO16750-2 load dump compliance, low thermal resistance (1.1 °C/W), and high-temperature operation up to +175 °C - critical for under-hood ECU, body control module, and ADAS sensor power conditioning designs.
Technical Context
This unidirectional TVS diode operates as a clamping device across DC power rails, activating above its 33.3–36.8 V breakdown voltage to shunt transient energy to ground. Its DO-218 package integrates a heatsink-anode configuration enabling direct PCB thermal coupling for sustained 5 W average power dissipation at TC = +25°C.
The device meets stringent automotive surge immunity requirements: it withstands 8.3 ms half-sine surges up to 500 A IFSM and clamps 10/1000 µs transients at ≤48.4 V while maintaining <10 µA leakage at VRWM. Its junction-to-case thermal resistance of 1.1 °C/W supports reliable operation under repeated load dump events at elevated ambient temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 30 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system overvoltage threshold. |
| VBR (min/max) | 33.3 V / 36.8 V - Breakdown occurs within this range at 5 mA test current; defines turn-on consistency for surge response. |
| VC @ IPP | 48.4 V @ 74 A - Clamping voltage during 10/1000 µs transient; determines protected circuit's maximum stress voltage. |
| PPK | 3600 W - Peak non-repetitive surge power handling; enables robust protection against ISO16750-2 load dump pulses. |
| RθJC | 1.1 °C/W - Junction-to-case thermal resistance; allows accurate thermal design when mounted on copper heatsink pads. |
| TJ Range | −55 °C to +175 °C - Operating junction temperature range; supports under-hood deployment without derating. |
| IFSM | 500 A - Peak forward surge current capability; withstands repetitive 8.3 ms half-sine surges per ISO7637-2. |
Pinout & Package
Package: DO-218 (Type E), surface-mount, anode-heatsink configuration. Molded plastic body with UL 94V-0 rating, matte tin-plated terminals, and 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 area for thermal management; electrically connected to anode and serves as primary heat sink. |
| Cathode (Lead) | Transient current entry point | Connected to protected line (e.g., battery rail); conducts surge current toward anode/heatsink during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 3600 W peak pulse power | Enables single-device protection against severe ISO16750-2 load dump events without external series impedance. |
| Low RθJC (1.1 °C/W) | Reduces junction temperature rise by >40% vs. standard SMB packages, extending reliability in high-ambient environments. |
| AEC-Q qualified | Validated for automotive use per JEDEC standards; eliminates need for additional qualification testing in Tier 1 BOMs. |
| RoHS & Halogen-Free | Complies with EU RoHS 3 and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb); supports global vehicle emissions compliance. |
| ISO7637-2 Pulse 1/2a/3a/3b compliant | Guarantees immunity to coupled transients from inductive switching in vehicle wiring harnesses. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Supply Rail |
|---|---|
Use Scenario: Protects 12 V input stage of engine ECU against alternator load dump surges during battery disconnection. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and input filter capacitor. Use Value: Limits transient voltage to ≤48.4 V, preventing damage to downstream LDOs and microcontroller power pins. |
Use Scenario: Shields BCM power supply from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive discharge) events. IC Role / Device Role / Timing Role: Primary rail-level surge suppressor located at main power entry point before DC-DC conversion. Use Value: Absorbs 3600 W peak energy without degradation, ensuring uninterrupted operation during door lock/unlock cycles. |
| ADAS Camera Power Conditioning | Infotainment Head Unit Power Input |
Use Scenario: Safeguards 12 V input of rear-view camera module exposed to load dump during vehicle start-stop cycling. IC Role / Device Role / Timing Role: Fast-response clamping device placed adjacent to input connector to minimize trace inductance. Use Value: Clamps within nanoseconds to protect image sensor and serializer ICs rated for max 45 V absolute maximum. |
Use Scenario: Guards head unit main power input against combined load dump and battery reversal transients in shared vehicle harnesses. IC Role / Device Role / Timing Role: First-line TVS in multi-stage protection scheme, preceding polyfuse and secondary TVS array. Use Value: Handles 500 A IFSM surges without fuse blow, preserving system availability during cold-cranking events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Lower PPK (400 W), SMA package, RθJC ≈ 50 °C/W, no AEC-Q qualification | Limited to non-automotive industrial or consumer applications with milder surge profiles | Select only if cost sensitivity outweighs automotive reliability and thermal performance requirements. |
| SMCJ30A | Higher PPK (1500 W), SMC package, RθJC ≈ 10 °C/W, AEC-Q not specified | Suitable for commercial automotive accessories but lacks full ISO16750-2 load dump validation | Use where space allows larger SMC footprint and full load dump immunity is not mandated by OEM spec. |
Compared with SMAJ30A and SMCJ30A, DM5W30A-13 delivers 2.4× higher peak power and 9× lower thermal resistance than SMCJ30A, enabling compact, thermally robust placement directly at battery connectors in safety-critical ECUs - a distinction validated by AEC-Q and ISO16750-2 certification.
Availability
DM5W30A-13 is available at Aetrix Electronics and suitable for automotive ECU power protection, body control modules, ADAS camera systems, and infotainment head units requiring stable component supply across extended production lifecycles.
Supply support for DM5W30A-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.
DM5W30A-13 belongs to Diodes' automotive-grade TVS portfolio engineered specifically for ISO16750-2 load dump and ISO7637-2 surge immunity in 12 V vehicle electrical systems.
FAQ
What is the maximum clamping voltage of DM5W30A-13 at its rated peak pulse current?
The DM5W30A-13 clamps to a maximum of 48.4 V at 74 A peak pulse current under the 10/1000 µs waveform condition. This value is guaranteed across temperature and lifetime per DS40426 Rev. 6-2, and defines the upper voltage limit imposed on protected circuitry during surge events.
How does the DO-218 package improve thermal performance compared to standard SMB or SMC packages?
The DO-218 (Type E) package uses an integrated anode heatsink tab that provides direct thermal conduction to the PCB, achieving a junction-to-case resistance of just 1.1 °C/W - approximately 9× lower than typical SMC packages. This enables sustained 5 W average power dissipation without external heatsinks.
Is DM5W30A-13 qualified for automotive applications per AEC-Q200?
Yes - DM5W30A-13 is qualified to JEDEC standards referenced in AEC-Q200 for high-reliability automotive use. It is explicitly listed as automotive-compliant in Diodes' product definitions and meets all required temperature cycling, humidity, and surge endurance tests for under-hood deployment.
Can DM5W30A-13 replace DM5W30AQ-13 in automotive designs?
No - DM5W30AQ-13 is the AEC-Q200-qualified automotive variant with additional screening and traceability; DM5W30A-13 is the industrial-grade version. While electrically identical, only the 'Q' suffix part carries full automotive qualification documentation and lot-level PPAP support required by Tier 1 suppliers.
DM5W30A-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):
- 74A
- 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
DM5W30A-13 FAQ
1.How can I place an order for DM5W30A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W30A-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 DM5W30A-13 reliable?
The price and inventory of DM5W30A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W30A-13 is usually 5 days.
3.What payment methods are accepted for DM5W30A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W30A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W30A-13?
DM5W30A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W30A-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 DM5W30A-13?
For technical support, including DM5W30A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W30A-13 requirements.
6.How does Aetrix verify that DM5W30A-13 is sourced from the original manufacturer or authorized distributors?
All DM5W30A-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 DM5W30A-13 meets industry standards.
7.What is the process for return or replacement of DM5W30A-13?
All DM5W30A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W30A-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 DM5W30A-13 part is unused and in its original packaging.
Return procedure for DM5W30A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W30A-13 Tags
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