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Diodes Incorporated DM8W36AQ-13
- Part No.:
- DM8W36AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM8W36AQ-13.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:7,009
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Product details
Overview
DM8W36AQ-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 36 V reverse standoff voltage (VRWM), 58.1 V clamping voltage (VC) at 114 A peak pulse current (Ipp), 6600 W peak pulse power (10/1000 µs), and operates from –55 °C to +175 °C - deployed across engine control units, body control modules, and infotainment power rails.
For engineers reviewing the DM8W36AQ-13 datasheet, DM8W36AQ-13 pinout, DM8W36AQ-13 application, or DM8W36AQ-13 equivalent, key selection criteria include verified ISO16750-2 Pulse A/B and ISO7637-2 Pulse 1/2a/3a/3b compliance, DO-218 (Type E) package thermal resistance (RθJC = 0.9 °C/W), and 150 µA max reverse leakage at VRWM and TJ = +175 °C.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for high-energy transients in 12 V/24 V automotive systems. Its unidirectional configuration with anode-connected heatsink enables low-inductance mounting directly to chassis ground planes, supporting fast response (<1 ns) to load-dump events up to 10 ms exponential waveform.
The device's thermal design centers on junction-to-case conduction via the metal heatsink tab (anode terminal), enabling sustained 8 W average power dissipation at TC = +25 °C and derating to ~3.5 W at TC = +125 °C per Figure 1. It meets AEC-Q101 stress testing requirements including temperature cycling, HTRB, and surge robustness.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; matches nominal 24 V system rail with margin for battery float. |
| VC @ IPP | 58.1 V - Clamped voltage at 114 A (10/1000 µs); ensures downstream ICs see <60 V during worst-case load dump. |
| PPK | 6600 W - Peak pulse power handling capability; sustains ISO16750-2 Load Dump (10 ms exponential) up to ~5200 W at elevated TC. |
| IFSM | 700 A - Non-repetitive forward surge rating (8.3 ms half-sine); supports high-current alternator fault conditions. |
| RθJC | 0.9 °C/W - Low thermal resistance from junction to case; enables efficient heat transfer to PCB copper pour or heatsink. |
| TJ Range | –55 °C to +175 °C - Full automotive temperature range qualification; validated for under-hood ECU placement. |
Pinout & Package
Package: DO-218 (Type E), molded plastic case with UL 94V-0 flammability rating, 2.74 g mass, and lead-free matte tin plating. Heatsink tab is electrically connected to the anode (pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive DC input / Surge return path | Primary thermal and electrical connection point; must be soldered to ≥100 mm² copper area for rated power handling. |
| Cathode (Top Surface Pin) | Protected circuit node | Connected to sensitive load (e.g., MCU power rail); clamps to cathode when transient exceeds VRWM. |
Key Features
| Feature | Design Value |
|---|---|
| 6600 W peak pulse power | Handles full ISO16750-2 Load Dump surges without degradation, eliminating need for external series impedance or staged protection. |
| AEC-Q101 qualified | Validated for automotive use with PPAP capability and manufacturing in IATF 16949 certified facilities - required for Tier 1 BOM inclusion. |
| Glass-passivated die | Ensures stable breakdown characteristics over lifetime and immunity to humidity-induced leakage drift in under-hood environments. |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and automotive green standards (<900 ppm Br/Cl, <1000 ppm Sb); compatible with Pb-free reflow profiles. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Protects 5 V/3.3 V microcontroller supply rails from alternator load-dump transients during battery disconnect events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input fuse and DC-DC converter input, clamping surges before LDOs or buck regulators. Use Value: Limits voltage excursion to ≤58.1 V, preventing latch-up or gate oxide damage in automotive-grade MCUs rated to 60 V absolute max. |
Use Scenario: Shields LIN bus transceivers and door module motor drivers from ISO7637-2 Pulse 1 (inductive kickback) and Pulse 3b (capacitive coupling). IC Role / Device Role / Timing Role: Mounted at harness entry point, shunting transients to chassis ground via heatsink tab before signal conditioning stages. Use Value: Achieves <100 ns response time and maintains <150 µA leakage at 36 V, preserving low-power sleep mode integrity. |
| Infotainment Power Supply | ADAS Camera Module |
Use Scenario: Guards 12 V input to display backlight LED drivers and USB-C PD controllers against cranking surges and jump-start spikes. IC Role / Device Role / Timing Role: Placed upstream of input filter capacitors and e-fuse ICs; absorbs energy before filtering reduces dv/dt. Use Value: Withstands 700 A single half-sine surge (8.3 ms), preventing catastrophic failure during roadside battery boost events. |
Use Scenario: Secures 5 V imaging sensor supply in rear-view or surround-view cameras exposed to under-bumper EMI and vibration-induced contact bounce. IC Role / Device Role / Timing Role: Integrated into compact 2-layer flex-rigid PCB stackup with direct heatsink tab soldering to internal ground plane. Use Value: Operates reliably at +125 °C ambient (derated PM(AV) ≈ 4.2 W), meeting ASIL-B thermal safety margins without derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-Q | Lower PPK (400 W), SMA package (RθJC ≈ 45 °C/W), no AEC-Q101 qualification | Not suitable for load-dump; limited to ISO7637-2 Pulse 1/2a only; requires larger board area for thermal management | Select only for cost-sensitive non-automotive industrial controls where 6600 W rating is unnecessary. |
| SM8S36A-Q | Same DO-218 package, 6600 W rating, but 64.5 V VC at 102 A IPP; higher clamping voltage than DM8W36AQ-13 | Acceptable for 24 V systems with >65 V tolerant downstream ICs; less margin for 60 V-rated components | Prefer DM8W36AQ-13 when protecting 60 V max devices; choose SM8S36A-Q only if tighter VC tolerance is not required. |
Compared with SMAJ36A-Q and SM8S36A-Q, DM8W36AQ-13 delivers superior thermal performance (0.9 °C/W vs. >10 °C/W), lower clamping voltage (58.1 V vs. 64.5 V), and full AEC-Q101 compliance - making it the only option qualified for critical load-dump protection in modern E/E architectures.
Availability
DM8W36AQ-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, and infotainment power supplies requiring stable component supply across multi-year automotive production cycles.
Supply support for DM8W36AQ-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, manufacturing, and sales operations across Asia, Europe, and North America.
The DM8WxxAQ series belongs to Diodes' automotive-grade TVS portfolio, engineered specifically for ISO16750-2 and ISO7637-2 compliance in harsh under-hood and chassis-mounted applications - emphasizing thermal robustness, surge repeatability, and PPAP-ready traceability.
FAQ
What is the maximum clamping voltage of DM8W36AQ-13 at its rated peak pulse current?
The DM8W36AQ-13 exhibits a maximum clamping voltage (VC) of 58.1 V when subjected to a 114 A peak pulse current using the standard 10/1000 µs waveform. This value is measured at TA = +25 °C and guarantees that protected circuits remain below 60 V during worst-case load-dump events, aligning with typical automotive IC absolute maximum ratings.
Is DM8W36AQ-13 qualified for automotive use per AEC-Q101?
Yes, DM8W36AQ-13 is fully AEC-Q101 qualified and manufactured in IATF 16949 certified facilities. It has passed all required stress tests including high-temperature reverse bias, temperature cycling, and surge robustness per AEC-Q101 Rev D. PPAP documentation is available upon request for Tier 1 procurement.
How should the heatsink tab be mounted for optimal thermal performance?
The anode heatsink tab must be soldered to a minimum 100 mm² copper area on the PCB, preferably with multiple thermal vias to inner ground planes. Per Diodes' layout guidance, use the recommended pad dimensions (D1 = 9.0 mm, D2 = 10.0 mm, E = 8.5 mm) and ensure solder coverage ≥90% to achieve the specified RθJC = 0.9 °C/W and sustain 8 W average power at TC = +25 °C.
Does DM8W36AQ-13 meet RoHS 3 and halogen-free requirements?
Yes, DM8W36AQ-13 complies with EU Directive 2015/863/EU (RoHS 3), containing <900 ppm bromine, <900 ppm chlorine (total Br+Cl <1500 ppm), and <1000 ppm antimony. It carries Diodes' "Green" designation and uses matte tin lead-free plating, qualified per MIL-STD-202, Method 208.
DM8W36AQ-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):
- 114A
- Power - Peak Pulse:
- 6600W (6.6kW)
- 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
DM8W36AQ-13 FAQ
1.How can I place an order for DM8W36AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM8W36AQ-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 DM8W36AQ-13 reliable?
The price and inventory of DM8W36AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM8W36AQ-13 is usually 5 days.
3.What payment methods are accepted for DM8W36AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM8W36AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM8W36AQ-13?
DM8W36AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM8W36AQ-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 DM8W36AQ-13?
For technical support, including DM8W36AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM8W36AQ-13 requirements.
6.How does Aetrix verify that DM8W36AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM8W36AQ-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 DM8W36AQ-13 meets industry standards.
7.What is the process for return or replacement of DM8W36AQ-13?
All DM8W36AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM8W36AQ-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 DM8W36AQ-13 part is unused and in its original packaging.
Return procedure for DM8W36AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM8W36AQ-13 Tags
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