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Diodes Incorporated DM5W36AQ-13
- Part No.:
- DM5W36AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W36AQ-13.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:234
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Product details
Overview
DM5W36AQ-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 36V reverse standoff voltage (VRWM), 40.0–44.2V breakdown voltage (VBR), 58.1V clamping voltage (VC) at 62A peak pulse current, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the DM5W36AQ-13 datasheet, DM5W36AQ-13 pinout, DM5W36AQ-13 application, or DM5W36AQ-13 equivalent, this device serves as a high-power, low-leakage, thermally robust TVS for 12V/24V automotive power rail protection where ISO16750-2 Pulse 5a (load dump) and ISO7637-2 Pulse 1/2a/3a/3b compliance are mandatory.
Technical Context
This unidirectional TVS diode operates with anode-connected heatsink polarity and delivers 3600W peak pulse power (10/1000µs waveform) at +25°C, derating linearly above TC = +25°C per Figure 1. Its 1.1°C/W junction-to-case thermal resistance enables effective heat dissipation during transient events.
The device exhibits low reverse leakage (<10µA at VRWM = 36V, TA = +25°C; <150µA at TJ = +175°C) and stable clamping performance across its operating temperature range of –55°C to +175°C - critical for engine control units, body control modules, and ADAS power supplies exposed to harsh thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000µs) | 3600W - sustains single high-energy load dump surges without failure |
| Reverse Standoff Voltage (VRWM) | 36V - blocks normal 24V system operation while remaining fully inactive |
| Breakdown Voltage (VBR) | 40.0–44.2V @ 5mA - precise turn-on threshold ensures early clamping before downstream IC damage |
| Clamping Voltage (VC) | 58.1V @ 62A - limits transient voltage seen by protected circuitry to safe levels |
| Thermal Resistance (RθJC) | 1.1°C/W - enables efficient heat transfer to PCB copper or heatsink for repeated surge handling |
| Operating Temperature Range | –55°C to +175°C - qualified for under-hood placement near engines or transmission controllers |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and surge life testing |
Pinout & Package
Package: DO-218 (Type E), molded plastic housing with UL 94V-0 flammability rating; heatsink tab is electrically connected to the anode terminal. Polarity marked with cathode bar on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive input / GND return path for surge current | Must be soldered to ≥200 mm² copper pour for thermal and current-handling integrity |
| Cathode (Lead) | Surge current sink / clamping node | Connected to protected line (e.g., battery rail); carries full 62A transient current during clamp event |
Key Features
| Feature | Design Value |
|---|---|
| 3600W Peak Pulse Power | Handles ISO16750-2 Load Dump (Pulse 5a) up to 35V × 100A equivalent energy without degradation |
| Low Thermal Resistance (1.1°C/W) | Enables >5× higher surge repetition rate vs. standard SMA packages under identical PCB layout |
| AEC-Q101 Qualification | Validated for automotive production use with PPAP documentation and IATF 16949 manufacturing traceability |
| RoHS & Halogen-Free Compliance | Meets EU RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900ppm Br/Cl, <1000ppm Sb) |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects microcontroller, CAN transceivers, and sensor interfaces from alternator load dump surges during battery disconnect events. IC Role / Device Role: Unidirectional TVS placed between battery feed and input filter capacitor, with anode tied to chassis ground. Use Value: Clamps 35V–40V load dump transients to ≤58.1V, preventing overvoltage damage to 36V-rated LDOs and 5V/3.3V regulators downstream. | Use Scenario: Shields LIN bus transceivers, door lock actuators, and lighting drivers from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive coupling). IC Role / Device Role: Primary rail-level TVS on 12V supply input, mounted directly to thermal pad on multilayer PCB. Use Value: Achieves <10µA leakage at 36V, minimizing standby current drain in always-on BCM sleep modes. |
| Advanced Driver Assistance Systems (ADAS) Camera Power | Electric Power Steering (EPS) Motor Driver Supply |
Use Scenario: Safeguards image sensor SoCs and MIPI interface circuitry against coupled transients from nearby high-current solenoids or DC-DC converters. IC Role / Device Role: Secondary TVS stage after primary LC filter, positioned adjacent to camera module connector. Use Value: 58.1V clamping ensures protected 28V-rated buck converter remains within absolute maximum ratings during 10/1000µs surges. | Use Scenario: Guards gate drivers and current sense amplifiers in EPS H-bridge against back-EMF spikes and battery reversal transients. IC Role / Device Role: High-current TVS on 24V auxiliary supply rail feeding motor control ASICs. Use Value: 500A IFSM rating supports fault-clearing capability during short-circuit events without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-Q | Lower peak power (400W), SMA package, RθJC ≈ 50°C/W | Limited to low-energy ISO7637-2 Pulse 3 only; unsuitable for load dump | Select when cost-sensitive, non-load-dump applications require smaller footprint |
| SMCJ36A-Q | 1500W peak power, SMC package, RθJC ≈ 3.5°C/W | Meets ISO16750-2 Pulse 5a only at reduced pulse width or lower ambient; not rated for full 3600W | Choose where moderate surge energy and tighter board space constrain DO-218 adoption |
Compared with SMAJ36A-Q and SMCJ36A-Q, DM5W36AQ-13 delivers 2.4× higher surge energy capacity and 3.2× better thermal conductivity - enabling reliable protection in high-temperature, high-repetition automotive environments where sustained clamping performance is non-negotiable.
Availability
DM5W36AQ-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering systems requiring stable component supply with full automotive qualification and long-term lifecycle support.
Supply support for DM5W36AQ-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.
The DM5WxxAQ series belongs to Diodes' AEC-Q101-qualified TVS portfolio, engineered specifically for automotive power rail surge immunity - emphasizing high peak power, low thermal impedance, and robust high-temperature stability in under-hood deployments.
FAQ
What is the maximum clamping voltage of DM5W36AQ-13 at its rated peak pulse current?
The maximum clamping voltage (VC) is 58.1V at 62A peak pulse current (IPP) under 10/1000µs waveform conditions. This value is measured at TA = +25°C and guarantees that protected downstream circuitry will not experience voltages exceeding 58.1V during standardized surge events defined in ISO16750-2 and ISO7637-2.
Is DM5W36AQ-13 suitable for bidirectional surge protection?
No - DM5W36AQ-13 is a unidirectional TVS diode with anode-connected heatsink polarity. It conducts only during positive transients on the cathode side. For bidirectional protection (e.g., data lines), a separate symmetric TVS array or dual-diode configuration is required; this part must be used with correct polarity orientation in DC power applications.
How does the thermal design of DM5W36AQ-13 differ from standard SMA/SMC TVS diodes?
Its DO-218 (Type E) package achieves 1.1°C/W junction-to-case thermal resistance - over 3× lower than typical SMC (3.5°C/W) and 45× lower than SMA (50°C/W). This requires direct mounting of the heatsink tab to ≥200 mm² of 2-oz copper, enabling sustained surge handling without thermal runaway in high-ambient under-hood locations.
Does DM5W36AQ-13 meet both ISO16750-2 and ISO7637-2 standards simultaneously?
Yes - it is explicitly characterized and qualified for both standards: ISO16750-2 Pulse 5a (load dump, 10ms exponential) and ISO7637-2 Pulse 1, 2a, 3a, and 3b. The 3600W rating corresponds to the most demanding load dump condition, while low leakage and fast response ensure compliance across all specified transient waveforms.
DM5W36AQ-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 61A
- 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
DM5W36AQ-13 FAQ
1.How can I place an order for DM5W36AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W36AQ-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 DM5W36AQ-13 reliable?
The price and inventory of DM5W36AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W36AQ-13 is usually 5 days.
3.What payment methods are accepted for DM5W36AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W36AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W36AQ-13?
DM5W36AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W36AQ-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 DM5W36AQ-13?
For technical support, including DM5W36AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W36AQ-13 requirements.
6.How does Aetrix verify that DM5W36AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM5W36AQ-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 DM5W36AQ-13 meets industry standards.
7.What is the process for return or replacement of DM5W36AQ-13?
All DM5W36AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W36AQ-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 DM5W36AQ-13 part is unused and in its original packaging.
Return procedure for DM5W36AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W36AQ-13 Tags
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