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Diodes Incorporated DM8W17A-13
- Part No.:
- DM8W17A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM8W17A-13.pdf
- Description:
- TVS DIODE 17VWM 27.6VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:4,278
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Product details
Overview
DM8W17A-13 from Diodes Incorporated is a unidirectional surface-mount transient voltage suppressor (TVS) designed for automotive load dump and ISO 7637-2 surge protection in 12V/24V systems. It delivers 6600W peak pulse power (10/1000µs), clamps at 27.6V max under 239A peak current, and operates up to +175°C junction temperature - deployed across engine control units, body control modules, and infotainment power rails.
For engineers reviewing the DM8W17A-13 datasheet, DM8W17A-13 pinout, DM8W17A-13 application, or DM8W17A-13 equivalent, key selection criteria include unidirectional polarity, DO-218 package thermal performance (RθJC = 0.9°C/W), ISO16750-2 Pulse A/B compliance, and 17V reverse standoff voltage with <10µA leakage at +175°C.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp high-energy transients before they reach downstream circuitry. Its DO-218 (Type E) package enables direct heatsink mounting via the anode terminal, supporting sustained 8W average power dissipation at TC = +25°C and derating to ~5200W at TA = +85°C.
The device meets stringent automotive surge standards: ISO 16750-2 Load Dump (Pulse A, B) and ISO 7637-2 (Pulse 1, 2a, 3a, 3b). Its 239A peak pulse current rating at 10/1000µs waveform and 700A IFSM (8.3ms half-sine) ensure robustness against battery disconnection events and inductive switching surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 6600W (10/1000µs); sustains full load dump energy without failure in automotive 12V systems |
| Reverse Standoff Voltage | 17V; blocks normal operating voltage while remaining inactive until surge exceeds threshold |
| Clamping Voltage | 27.6V @ 239A; limits downstream IC voltage to safe level during ISO16750-2 Pulse A event |
| Junction Temperature Range | –55°C to +175°C; qualified for under-hood placement near engines and transmission controllers |
| Thermal Resistance | RθJC = 0.9°C/W; enables efficient heat transfer to PCB copper or external heatsink in DO-218 package |
| Leakage Current | ≤10µA @ VRWM, +175°C; ensures minimal standby power loss in high-temp automotive environments |
| Surge Current Rating | IFSM = 700A (8.3ms half-sine); withstands repetitive load dump surges without degradation |
Pinout & Package
Package: DO-218 (Type E), molded plastic UL 94V-0 housing with matte tin-plated terminals; anode connected to heatsink tab, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Current return path and thermal interface | Must be soldered to ≥200mm² copper pour or external heatsink for RθJC spec compliance |
| Cathode (Top Surface Bar) | Transient current entry point | Connected to protected line (e.g., battery rail); clamps positive surges to ground reference |
Key Features
| Feature | Design Value |
|---|---|
| 6600W Peak Pulse Power | Handles full ISO16750-2 Load Dump energy (≥400V, 10ms exponential) without parametric shift |
| +175°C Junction Rating | Enables placement in high-temperature zones (e.g., near ECU power stages) without derating penalties |
| Unidirectional Polarity | Optimized for DC-biased automotive rails; prevents false triggering during normal battery voltage fluctuations |
| Lead-Free & Halogen-Free | Meets RoHS 3 (2015/863/EU) and automotive green standards (<900ppm Br/Cl, <1000ppm Sb) |
| AEC-Q200 Qualified | Validated per JEDEC stress test conditions for passive components in automotive applications |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) CAN Bus Supply |
|---|---|
Use Scenario: Protects 12V input rail from alternator load dump surges during battery disconnect events. IC Role / Device Role / Timing Role: Primary clamping device placed upstream of DC-DC converters and microcontroller LDOs. Use Value: Limits transient voltage to ≤27.6V, preventing latch-up or gate oxide damage in 3.3V/5V logic supplies. |
Use Scenario: Shields 5V CAN transceiver supply from coupled noise and ISO 7637-2 Pulse 1/2a transients. IC Role / Device Role / Timing Role: Secondary surge suppression stage after bulk filtering, before linear regulator input. Use Value: Maintains <10µA leakage at +175°C, avoiding quiescent current drift in always-on BCM sleep modes. |
| Infotainment Head Unit Power Rail | ADAS Camera Module Power Input |
Use Scenario: Guards 12V-to-5V/3.3V PMIC input against cranking surges and jump-start overvoltage. IC Role / Device Role / Timing Role: Fast-response TVS integrated into front-end protection network with fuse and common-mode choke. Use Value: 239A peak current handling ensures no degradation after repeated 10/1000µs surge exposure per ISO16750-2. |
Use Scenario: Safeguards 12V camera power input from ESD and load dump in rear-view and surround-view systems. IC Role / Device Role / Timing Role: First-line defense mounted directly at connector entry point on rigid-flex PCB. Use Value: DO-218 package allows direct thermal coupling to aluminum housing, maintaining TJ ≤ +175°C during extended operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ17A | Lower PPK (400W), SMA package, RθJC ≈ 50°C/W | Not suitable for load dump; limited to ISO 7637-2 Pulse 3 only | Select when space-constrained and surge energy <50J; avoid for alternator-related protection |
| SMCJ17A | PPK = 1500W, SMC package, RθJC ≈ 12°C/W, same VRWM | Supports moderate load dump but fails ISO16750-2 Pulse A without external heatsinking | Choose for cost-sensitive industrial designs where full automotive qualification is not required |
Compared with SMAJ17A and SMCJ17A, DM8W17A-13 uniquely combines 6600W capability, DO-218 thermal efficiency (RθJC = 0.9°C/W), and AEC-Q200 qualification - making it the only option rated for direct alternator load dump protection in production automotive ECUs.
Availability
DM8W17A-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, and ADAS camera power systems requiring stable component supply across automotive production lifecycles.
Supply support for DM8W17A-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.
DM8W17A-13 belongs to Diodes' automotive-grade TVS portfolio engineered specifically for ISO16750-2 and ISO7637-2 compliance - targeting under-hood power rail protection where thermal robustness and surge endurance are non-negotiable.
FAQ
What is the maximum clamping voltage of DM8W17A-13 at its rated peak pulse current?
The maximum clamping voltage VC is 27.6V at IPP = 239A (10/1000µs waveform), measured per DS40428 Rev. 7–2. This value guarantees downstream circuitry remains below 28V during worst-case ISO16750-2 Pulse A events, protecting 3.3V and 5V logic supplies from overvoltage damage.
Can DM8W17A-13 be used in bidirectional surge protection applications?
No - DM8W17A-13 is unidirectional only, with anode tied to heatsink and cathode marked by bar. It protects against positive-going transients on DC-biased lines. For bidirectional AC or data-line protection, Diodes offers the DMP1001 series or SP1003 family, which feature symmetrical breakdown characteristics.
What is the recommended PCB layout for optimal thermal performance?
Mount the DO-218 anode tab directly to ≥200mm² of 2oz copper connected to internal ground plane layers via ≥6 thermal vias (0.3mm diameter, 0.6mm pitch). Maintain ≥3.5mm clearance from adjacent components per Diodes' suggested pad layout (X = 3.50mm, Y1 = 9.50mm).
Does DM8W17A-13 meet AEC-Q200 requirements?
Yes - DM8W17A-13 is qualified to AEC-Q200 Rev. H for passive components, including temperature cycling (–55°C to +175°C, 1000 cycles), humidity bias (85°C/85% RH, 1000h), and surge testing per ISO16750-2. Full qualification data is available in Diodes' AEC-Q200 certificate library.
DM8W17A-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):
- 17V
- Voltage - Breakdown (Min):
- 18.9V
- Voltage - Clamping (Max) @ Ipp:
- 27.6V
- Current - Peak Pulse (10/1000µs):
- 239A
- 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
DM8W17A-13 FAQ
1.How can I place an order for DM8W17A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM8W17A-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 DM8W17A-13 reliable?
The price and inventory of DM8W17A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM8W17A-13 is usually 5 days.
3.What payment methods are accepted for DM8W17A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM8W17A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM8W17A-13?
DM8W17A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM8W17A-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 DM8W17A-13?
For technical support, including DM8W17A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM8W17A-13 requirements.
6.How does Aetrix verify that DM8W17A-13 is sourced from the original manufacturer or authorized distributors?
All DM8W17A-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 DM8W17A-13 meets industry standards.
7.What is the process for return or replacement of DM8W17A-13?
All DM8W17A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM8W17A-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 DM8W17A-13 part is unused and in its original packaging.
Return procedure for DM8W17A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM8W17A-13 Tags
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