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Diodes Incorporated DM5W30AQ-13
- Part No.:
- DM5W30AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W30AQ-13.pdf
- Description:
- TVS DIODE 30VWM 48.4VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:6,528
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Product details
Overview
DM5W30AQ-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 30V reverse standoff voltage, 48.4V max clamping voltage at 74A peak pulse current, and AEC-Q101 qualification for under-hood powertrain and body control modules.
For engineers reviewing the DM5W30AQ-13 datasheet, DM5W30AQ-13 pinout, DM5W30AQ-13 application, or DM5W30AQ-13 equivalent, this device serves as a high-reliability, lead-free, halogen-free TVS for ISO16750-2 Pulse A/B and ISO7637-2 Pulse 1/2a/3a/3b compliance in 12V/24V automotive systems with junction temperature range from –55°C to +175°C.
Technical Context
This unidirectional TVS diode operates with anode-connected heatsink polarity and delivers 3600W non-repetitive peak pulse power (10/1000µs waveform) at +25°C, derating linearly above ambient case temperature. Its low 1.1°C/W junction-to-case thermal resistance enables robust thermal management during load dump events.
It exhibits 10µA max reverse leakage at 30V VRWM and 250µA at 175°C, with breakdown voltage tightly specified between 33.3V and 36.8V at 5mA test current - ensuring precise overvoltage clamping without false triggering in noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3600W (10/1000µs); sustains single high-energy load dump surges per ISO16750-2 without failure |
| Reverse Standoff Voltage | 30V; blocks normal system operation up to battery overvoltage threshold before clamping |
| Clamping Voltage | 48.4V @ 74A; limits downstream IC voltage to safe level during 3600W transient event |
| Breakdown Voltage | 33.3–36.8V @ 5mA; ensures reliable turn-on margin above VRWM with minimal dispersion |
| Junction Temp Range | –55°C to +175°C; supports placement near engines, alternators, or power electronics |
| Thermal Resistance | 1.1°C/W (Junction-to-Case); enables efficient heat transfer to PCB copper or heatsink |
| AEC-Q101 Qualified | Yes; validated for automotive use with PPAP capability and IATF 16949 manufacturing |
Pinout & Package
Package: DO-218 (Type E), molded plastic UL 94V-0 housing, 2.74g weight, heatsink tab serves as anode terminal. Polarity marked by cathode bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive Surge Return Path | Primary thermal and electrical connection point; must be soldered to large copper area for thermal dissipation and low-inductance surge return |
| Cathode (Top Lead) | Protected Circuit Connection | Connected to sensitive node (e.g., MCU power rail); conducts surge current to anode when clamping threshold exceeded |
Key Features
| Feature | Design Value |
|---|---|
| 3600W Peak Pulse Power | Handles full ISO16750-2 Load Dump energy (up to 120V, 10ms exponential) without degradation |
| Low Thermal Resistance (1.1°C/W) | Enables >90% of rated power dissipation at TC = +125°C, critical for under-hood mounting |
| AEC-Q101 Qualification | Validated for automotive life-cycle stress including temperature cycling, HTRB, and surge endurance |
| Lead-Free & Halogen-Free | RoHS 3 compliant (<900ppm Br/Cl, <1000ppm Sb); meets global automotive environmental mandates |
| ISO7637-2 / ISO16750-2 Compliance | Tested and certified for Pulse 1, 2a, 3a, 3b, A, and B waveforms - no additional external filtering required |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Protection |
|---|---|
Use Scenario: Protects 12V supply rail of engine ECU against alternator load dump transients up to 120V. IC Role / Device Role / Timing Role: Unidirectional TVS clamps overvoltage within 1ns, diverting surge current to chassis ground via heatsink tab. Use Value: Prevents latch-up or permanent damage to 3.3V/5V LDOs and microcontrollers without adding series impedance or signal delay. |
Use Scenario: Shields isolated CAN transceiver VCC and common-mode nodes from coupled surges on vehicle harnesses. IC Role / Device Role / Timing Role: Placed at BCM power entry point upstream of DC-DC converter; clamps fast-rising ISO7637-2 Pulse 1 (–150V/50Ω) transients. Use Value: Maintains CAN bus communication integrity during ignition switching and relay bounce events without disrupting data timing. |
| ADAS Camera Power Supply | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Secures 5V/3.3V imaging sensor rails in front-facing ADAS cameras exposed to battery voltage fluctuations. IC Role / Device Role / Timing Role: TVS placed after input filter capacitor; absorbs repetitive low-energy spikes from nearby solenoids and actuators. Use Value: Eliminates image noise, frame drop, or reset events caused by sub-100ns transients that bypass bulk capacitance. |
Use Scenario: Protects gate driver ICs and high-side MOSFETs in EPS motor inverters from inductive kickback during PWM commutation. IC Role / Device Role / Timing Role: Mounted directly at H-bridge DC bus input; clamps voltage overshoot exceeding 48V rating during regenerative braking. Use Value: Avoids destructive avalanche failure in 60V-rated power FETs while preserving switching efficiency and torque response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Lower 400W peak power (10/1000µs), SMA package, 1.5x higher RθJA (~50°C/W) | Not suitable for ISO16750-2 load dump; limited to lower-energy ISO7637-2 Pulse 3b only | Select only for cost-sensitive non-load-dump applications where board space is constrained and thermal mass is high |
| SMCJ30A | 1500W peak power, SMC package, 2.5x larger footprint, RθJC ~2.5°C/W | Meets ISO7637-2 but fails ISO16750-2 Pulse A/B due to insufficient energy handling | Use where legacy SMC layout exists and full 3600W capability is not required; verify thermal relief design |
Compared with SMAJ30A and SMCJ30A, DM5W30AQ-13 uniquely combines AEC-Q101 qualification, DO-218 thermal performance, and full 3600W load dump capability - enabling single-device compliance across both ISO standards without derating or parallel devices.
Availability
DM5W30AQ-13 is available at Aetrix Electronics and suitable for automotive powertrain control units, ADAS camera modules, electric power steering systems, and body electronics requiring stable component supply with full automotive qualification traceability.
Supply support for DM5W30AQ-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 IATF 16949-certified facilities.
The DM5WxxAQ series belongs to Diodes' automotive-grade TVS portfolio, engineered specifically to meet stringent ISO16750-2 and ISO7637-2 surge immunity requirements in harsh-temperature vehicle environments.
FAQ
What is the maximum clamping voltage of DM5W30AQ-13 at its rated peak pulse current?
The maximum clamping voltage is 48.4V at 74A peak pulse current (10/1000µs waveform), measured per JEDEC standards. This value ensures protected circuits remain below 50V during worst-case load dump events, safeguarding 48V-tolerant automotive ICs without overdesigning downstream voltage rails.
Can DM5W30AQ-13 be used in 24V commercial vehicle systems?
Yes - its 30V VRWM and 48.4V clamping voltage provide appropriate margin above nominal 24V system voltage (28V max charging), and its –55°C to +175°C operating range supports under-hood deployment in trucks and buses. Derating curves in Figure 2 confirm sustained load dump capability at elevated case temperatures.
Is the heatsink tab electrically isolated from the cathode lead?
No - the heatsink tab is the anode terminal, and the top lead is the cathode. The device is unidirectional, with polarity clearly marked by a cathode bar on the package top surface. Mounting requires isolation of the heatsink pad from any other circuit node except the designated anode return path.
Does DM5W30AQ-13 require external series impedance for optimal surge protection?
No - it is designed for direct placement at the protected node with minimal trace inductance. Adding series resistance or ferrite beads degrades clamping speed and increases let-through voltage. Optimal implementation uses short, wide copper pours connecting cathode to protected rail and anode to low-inductance ground plane or chassis.
DM5W30AQ-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:
- 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
DM5W30AQ-13 FAQ
1.How can I place an order for DM5W30AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W30AQ-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 DM5W30AQ-13 reliable?
The price and inventory of DM5W30AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W30AQ-13 is usually 5 days.
3.What payment methods are accepted for DM5W30AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W30AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W30AQ-13?
DM5W30AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W30AQ-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 DM5W30AQ-13?
For technical support, including DM5W30AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W30AQ-13 requirements.
6.How does Aetrix verify that DM5W30AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM5W30AQ-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 DM5W30AQ-13 meets industry standards.
7.What is the process for return or replacement of DM5W30AQ-13?
All DM5W30AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W30AQ-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 DM5W30AQ-13 part is unused and in its original packaging.
Return procedure for DM5W30AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W30AQ-13 Tags
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