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Diodes Incorporated DM5W27Q-13
- Part No.:
- DM5W27Q-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W27Q-13.pdf
- Description:
- TRANSIENT VOLTAGE SUPPRESSOR PP
- Quantity:
- Payment:
- Shipping:
Inventory:8,069
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Product details
Overview
DM5W27Q-13 from Diodes Incorporated is a 3600W surface-mount transient voltage suppressor (TVS) diode designed for automotive power line surge protection. It features a 22V reverse standoff voltage, 40V clamping voltage at 55A peak pulse current, and AEC-Q101 qualification for under-hood applications requiring ISO 16750-2 load dump and ISO 7637-2 pulse immunity.
For engineers reviewing the DM5W27Q-13 datasheet, DM5W27Q-13 pinout, DM5W27Q-13 application, or DM5W27Q-13 equivalent, key selection criteria include peak pulse power (3600W), thermal resistance (1.1°C/W), DO-218 package mounting compatibility, and automotive-grade reliability validation per IATF 16949.
Technical Context
This unidirectional TVS diode uses glass-passivated die construction to achieve low thermal resistance (1.1°C/W) and high-temperature stability across –55°C to +175°C operating range. Its 22V VRWM and 24–30V VBR (at 10mA) enable precise overvoltage clamping in 12V/24V automotive systems.
The device handles 500A non-repetitive forward surge current (8.3ms half-sine) and 70A reverse surge current (10μs/10ms exponential decay), with 1.0V VF at 6.0A forward current. Clamping performance is specified at 40V for 55A (10/1000µs waveform), supporting robust load-dump suppression per ISO 16750-2 Pulse 5a.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 3600W (10/1000µs waveform; enables single-event load dump suppression up to 3600W without failure) |
| Reverse Standoff Voltage | 22V (maximum continuous DC operating voltage before clamping activation in 12V automotive systems) |
| Clamping Voltage | 40V at 55A (limits transient voltage to safe level for downstream 40V-rated ICs during ISO 16750-2 Pulse 5a) |
| Thermal Resistance | 1.1°C/W junction-to-case (supports high-power dissipation with minimal case temperature rise under sustained surge conditions) |
| Operating Temperature | –55°C to +175°C (enables placement near engine control units or power distribution modules without derating) |
| AEC-Q101 Qualified | Yes (validates reliability for automotive electronics per stress test requirements including HTGB, HTRB, TCT) |
| Package | DO-218 (Type E) (surface-mount, heatsink-is-anode configuration; requires PCB copper area ≥90mm² for thermal management) |
Pinout & Package
DO-218 (Type E) package with anode connected to heatsink tab and cathode on leaded terminal. Molded plastic body (UL 94V-0), matte tin-plated terminals, polarity indicated by bar marking on cathode end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Heatsink Tab) | Positive Surge Return Path | Primary thermal path and low-inductance connection to ground plane; must be soldered to ≥90mm² copper pour |
| Cathode (Lead) | Transient Clamping Node | Connected to protected line (e.g., battery feed); conducts surge current to anode during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Eliminates moisture ingress risk and ensures stable VBR over lifetime in humid under-hood environments |
| Low thermal resistance (1.1°C/W) | Enables >90% of 3600W pulse energy to dissipate through heatsink tab rather than leads, reducing PCB trace heating |
| 0.2µA max reverse leakage @ 22V | Minimizes standby power loss in always-on automotive modules (e.g., body control units, telematics) |
| ISO 16750-2 & ISO 7637-2 compliance | Validated for Pulse 5a (load dump) and Pulse 1/2a/3a/3b waveforms-no additional external filtering required |
| AEC-Q101 qualification | Confirms suitability for safety-critical automotive functions including engine management and ADAS power domains |
Applications
| Engine Control Unit Protection | Body Control Module Input |
|---|---|
Use Scenario: 12V battery line feeding microcontroller power supply in gasoline/diesel ECUs exposed to alternator load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at main power entry point before DC-DC converter input. Use Value: Limits transient voltage to ≤40V, preventing damage to 40V-rated buck controllers and ensuring uninterrupted MCU operation during ISO 16750-2 Pulse 5a events. |
Use Scenario: LIN bus or sensor power rail (e.g., door module, seat control) subjected to ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 3b (capacitive discharge). IC Role / Device Role / Timing Role: Primary surge suppression element on 12V auxiliary rail, mounted directly at connector entry. Use Value: Clamps 55A surges within 10/1000µs to protect 24V-tolerant LIN transceivers and Hall-effect sensors without adding series impedance. |
| ADAS Camera Power Supply | Electric Power Steering ECU |
Use Scenario: 12V input to image sensor power management IC in front/rear-view cameras mounted near radiator or headlight assemblies. IC Role / Device Role / Timing Role: First-line transient protector on camera module PCB, thermally coupled to metal shield or chassis ground. Use Value: Withstands repeated 3600W pulses while maintaining <1.0V forward drop at 6A, minimizing voltage sag during simultaneous sensor and ISP operation. |
Use Scenario: 24V power rail in EPS motor control unit exposed to high-current switching noise and load dump from adjacent 24V alternator. IC Role / Device Role / Timing Role: High-energy TVS on main power bus upstream of gate drivers and current sense amplifiers. Use Value: 500A IFSM rating supports fault-clearing during motor stall events without degradation, preserving torque control integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Lower peak power (400W), SMA package, 1.5°C/W RθJC, 33.2V VBR min | Not qualified to AEC-Q101; limited to non-safety-critical infotainment or lighting | Select only for cost-sensitive, non-automotive industrial applications where 3600W surge immunity is unnecessary |
| SMCJ22A | 1500W peak power, SMC package, 2.0°C/W RθJC, 24.4V VBR min | Lacks ISO 16750-2 Pulse 5a validation; insufficient for load dump in 24V systems | Acceptable for 12V body electronics with moderate surge exposure but not for engine bay or EPS use |
Compared with SMAJ22A and SMCJ22A, DM5W27Q-13 delivers 2.4× higher peak power and 3.3× lower thermal resistance, enabling direct replacement in high-energy automotive locations where legacy TVS devices fail under repeated load dump stress.
Availability
DM5W27Q-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and ADAS camera power supplies requiring stable component supply with full AEC-Q101 traceability and IATF 16949 manufacturing assurance.
Supply support for DM5W27Q-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 with over 50 years of power management expertise.
The DM5W27Q belongs to Diodes' automotive-grade TVS diode product line, engineered specifically for ISO-compliant surge protection in harsh-temperature vehicle subsystems where failure is not an option.
FAQ
What is the maximum clamping voltage of DM5W27Q-13 at rated peak pulse current?
The DM5W27Q-13 clamps to 40V maximum at 55A peak pulse current using the 10/1000µs waveform. This value is guaranteed across –55°C to +175°C and defines the upper voltage limit imposed on protected circuitry during surge events.
Can DM5W27Q-13 be used in 24V commercial vehicle systems?
Yes - its 22V VRWM and 40V VC allow safe operation on 24V nominal systems with ±20% tolerance. The 3600W rating and AEC-Q101 qualification make it suitable for heavy-duty truck ECUs and trailer control modules meeting ISO 16750-2 Pulse 5a requirements.
What PCB layout practices are required for optimal thermal performance?
Mount the DO-218 anode tab directly to ≥90mm² of 2oz copper connected to internal ground plane. Use ≥4 thermal vias (0.3mm diameter) under the tab, filled and capped. Avoid routing signal traces beneath the device to prevent coupling and ensure mechanical stability during thermal cycling.
Does DM5W27Q-13 meet RoHS 3 and halogen-free requirements?
Yes - it complies with EU Directive 2015/863/EU (RoHS 3) and contains <900ppm bromine, <900ppm chlorine, and <1000ppm antimony, satisfying Diodes' "Green" device definition. Lead-free matte tin plating meets MIL-STD-202 solderability standards.
DM5W27Q-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):
- 22V
- Voltage - Breakdown (Min):
- 24V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 55A
- Power - Peak Pulse:
- 3600W (3.6kW)
- 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
DM5W27Q-13 FAQ
1.How can I place an order for DM5W27Q-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W27Q-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 DM5W27Q-13 reliable?
The price and inventory of DM5W27Q-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W27Q-13 is usually 5 days.
3.What payment methods are accepted for DM5W27Q-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W27Q-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W27Q-13?
DM5W27Q-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W27Q-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 DM5W27Q-13?
For technical support, including DM5W27Q-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W27Q-13 requirements.
6.How does Aetrix verify that DM5W27Q-13 is sourced from the original manufacturer or authorized distributors?
All DM5W27Q-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 DM5W27Q-13 meets industry standards.
7.What is the process for return or replacement of DM5W27Q-13?
All DM5W27Q-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W27Q-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 DM5W27Q-13 part is unused and in its original packaging.
Return procedure for DM5W27Q-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W27Q-13 Tags
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