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Diodes Incorporated DM8W36A-13
- Part No.:
- DM8W36A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM8W36A-13.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:8,266
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Product details
Overview
DM8W36A-13 from Diodes Incorporated is a unidirectional 6600W surface-mount transient voltage suppressor (TVS) designed for automotive load dump and ISO7637-2 surge protection in high-reliability 12V/24V systems. It features a 36V reverse standoff voltage (VRWM), 40.0–44.2V breakdown range (VBR), 58.1V clamping voltage (VC) at 114A peak pulse current, and operates from –55°C to +175°C.
For engineers reviewing the DM8W36A-13 datasheet, DM8W36A-13 pinout, DM8W36A-13 application, or DM8W36A-13 equivalent, this part delivers validated ISO16750-2 Pulse A/B and ISO7637-2 Pulse 1/2a/3a/3b compliance, DO-218 package thermal robustness (RθJC = 0.9°C/W), and automotive-grade reliability without requiring external biasing or control logic.
Technical Context
This TVS diode uses an avalanche junction structure optimized for fast response (<1 ns) to high-energy transients. Its unidirectional polarity and heatsink-anode configuration enable direct mounting to metal chassis or PCB copper planes for efficient heat dissipation during 10/1000µs load dump events up to 6600W.
It sustains 700A non-repetitive forward surge current (IFSM) and maintains stable clamping performance across –55°C to +175°C, with <150µA leakage at VRWM and TJ = +175°C - critical for battery-connected circuits where standby power loss must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 6600W (10/1000µs waveform): handles full automotive load dump surges without failure |
| Reverse Standoff Voltage | 36V: blocks normal 24V system operation while triggering only above safe threshold |
| Clamping Voltage | 58.1V @ 114A: limits downstream IC voltage to survivable level during ISO16750-2 Pulse 5a |
| Breakdown Voltage Range | 40.0–44.2V @ 5mA: ensures consistent avalanche initiation across production lot and temperature |
| Thermal Resistance | 0.9°C/W (Junction-to-Case): enables direct heatsink coupling for sustained 8W average power dissipation |
| Operating Temperature | –55°C to +175°C: supports under-hood placement in modern engine control units and ADAS modules |
| Leakage Current | ≤150µA @ 36V, +175°C: prevents excessive battery drain in always-on vehicle networks |
Pinout & Package
Package: DO-218 (Type E), molded plastic UL 94V-0 housing with matte tin-plated terminals; heatsink tab serves as anode terminal; cathode marked by bar symbol on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current entry point during clamping | Must be soldered to ≥250 mm² copper pour or metal chassis for thermal and electrical integrity |
| Cathode (Top Surface Bar) | Current exit point during clamping | Connected to protected line (e.g., alternator output or ECU power rail) |
Key Features
| Feature | Design Value |
|---|---|
| 6600W Peak Pulse Power | Meets ISO16750-2 Load Dump (Pulse 5a) without derating at TC = +125°C |
| Junction Temperature Rating | +175°C operation enables placement near high-power components without thermal shutdown |
| Automotive Qualification | AEC-Q200 stress-tested; qualified per JEDEC standards for high-reliability automotive use |
| Lead-Free & Green Compliance | RoHS 3 compliant with <900ppm Br/Cl and <1000ppm Sb; halogen-free for exhaust safety |
| Moisture Sensitivity | Level 1 per J-STD-020: no baking required before reflow assembly |
Applications
| Engine Control Unit (ECU) Power Input | Advanced Driver Assistance Systems (ADAS) Camera Module |
|---|---|
Use Scenario: Protects 5V/3.3V LDO regulators and microcontrollers from alternator load dump spikes during battery disconnect. IC Role / Device Role: Primary overvoltage clamp placed between battery feed and DC-DC input stage. Use Value: Limits transient voltage to ≤58.1V, preventing damage to 60V-rated input MOSFETs and enabling single-stage protection architecture. |
Use Scenario: Shields image sensor interface and serializer ICs from ISO7637-2 Pulse 3b noise coupled through FAKRA coaxial cable shield. IC Role / Device Role: Common-mode surge suppressor on camera power line adjacent to connector. Use Value: Maintains <150µA leakage at +175°C, avoiding false wake-up in always-on vision systems during hot soak conditions. |
| Electric Power Steering (EPS) Motor Driver | Body Control Module (BCM) LIN Bus Interface |
Use Scenario: Absorbs regenerative energy surges during EPS motor deceleration and battery voltage reversal events. IC Role / Device Role: Bidirectional-capable unidirectional TVS used with freewheeling diode to manage back-EMF. Use Value: Withstands 700A IFSM for 8.3ms half-sine, supporting high-current motor drive without fuse coordination issues. |
Use Scenario: Suppresses ESD and switching noise on 12V supply rail feeding LIN transceivers and microcontrollers. IC Role / Device Role: Low-leakage front-end protector upstream of linear regulator. Use Value: Delivers 58.1V clamping at 114A while adding only 2.74g mass and zero active components to BOM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Lower PPK (400W), DO-214AC package, RθJC ≈ 45°C/W | Limited to low-energy pulses (ISO7637-2 Pulse 1/2a); unsuitable for load dump | Select only for cost-sensitive non-automotive 12V systems with <500W surge exposure |
| SMCJ36A | PPK = 1500W, DO-214AB package, RθJC ≈ 12°C/W, same VRWM/VC | Valid for ISO7637-2 Pulse 3 but fails ISO16750-2 Pulse 5a due to insufficient energy rating | Use where space constraints prevent DO-218 mounting but load dump risk is mitigated by system-level filtering |
Compared with SMAJ36A and SMCJ36A, DM8W36A-13 uniquely supports full automotive load dump (6600W) with integrated thermal path via heatsink tab - enabling compact, single-device protection without external heatsinks or parallel devices.
Availability
DM8W36A-13 is available at Aetrix Electronics and suitable for engine control units, ADAS camera modules, electric power steering systems, and body control modules requiring stable component supply across extended automotive product lifecycles.
Supply support for DM8W36A-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 protection, power management, and signal integrity solutions for automotive and industrial markets.
DM8W36A-13 belongs to the DM8WxxA series - engineered specifically for automotive-grade transient suppression in harsh under-hood environments, with emphasis on ISO16750-2 and ISO7637-2 compliance and extended temperature operation.
FAQ
What is the maximum clamping voltage of DM8W36A-13 at rated peak pulse current?
The clamping voltage (VC) is 58.1V measured at 114A peak pulse current using a 10/1000µs waveform. This value is guaranteed across –55°C to +175°C operating temperature and reflects worst-case device behavior under standardized surge testing per IEC 61000-4-5 methodology.
Can DM8W36A-13 be used in bidirectional configurations?
No - DM8W36A-13 is unidirectional only, with anode assigned to the heatsink tab and cathode marked on the top surface. For bidirectional protection, two devices must be connected in series opposing configuration, or a dedicated bidirectional TVS such as DM8W36CA must be selected.
Is DM8W36A-13 qualified to AEC-Q200?
While not explicitly labeled "AEC-Q200 qualified" in its part number, DM8W36A-13 is built to and tested against AEC-Q200 stress requirements per Diodes Incorporated's internal qualification process and is documented as meeting JEDEC standards for high-reliability automotive use in DS40428 Rev. 7-2.
What is the recommended PCB layout for optimal thermal performance?
Mount the heatsink tab directly to ≥250 mm² of 2 oz copper on inner or outer layer, connected via ≥8 thermal vias (0.3mm diameter) to internal ground plane. Pad dimensions must follow Diodes' DO-218 Type E layout: G = 3.30 mm, X = 3.50 mm, Y = 3.00 mm, with solder mask defined for full tab coverage.
DM8W36A-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
DM8W36A-13 FAQ
1.How can I place an order for DM8W36A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM8W36A-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 DM8W36A-13 reliable?
The price and inventory of DM8W36A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM8W36A-13 is usually 5 days.
3.What payment methods are accepted for DM8W36A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM8W36A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM8W36A-13?
DM8W36A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM8W36A-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 DM8W36A-13?
For technical support, including DM8W36A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM8W36A-13 requirements.
6.How does Aetrix verify that DM8W36A-13 is sourced from the original manufacturer or authorized distributors?
All DM8W36A-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 DM8W36A-13 meets industry standards.
7.What is the process for return or replacement of DM8W36A-13?
All DM8W36A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM8W36A-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 DM8W36A-13 part is unused and in its original packaging.
Return procedure for DM8W36A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM8W36A-13 Tags
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