My Inquiry
My Account
Diodes Incorporated DM6W28A-13
- Part No.:
- DM6W28A-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM6W28A-13.pdf
- Description:
- TVS DIODE 28VWM 45.4VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:9,398
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DM6W28A-13 from Diodes Incorporated is a surface-mount transient voltage suppressor (TVS) diode designed for automotive load dump and ISO7637-2 surge protection in 12V/24V systems. It features a 28V reverse standoff voltage (VRWM), 31.1–34.4V breakdown voltage (VBR), 45.4V clamping voltage (VC) at 101A peak pulse current, and 4600W peak pulse power dissipation (10/1000µs waveform). Used in engine control units, body control modules, and infotainment power rails.
For engineers reviewing the DM6W28A-13 datasheet, DM6W28A-13 pinout, DM6W28A-13 application, or DM6W28A-13 equivalent, key selection criteria include clamping performance under ISO16750-2 load dump, thermal resistance (RθJC = 1.0°C/W), DO-218 package mounting compatibility, and high-temperature operation up to +175°C.
Technical Context
This unidirectional TVS diode operates with anode-connected heatsink polarity and is optimized for fast transient suppression in automotive power networks. Its low clamping ratio (VC/VBR ≈ 1.43) and low thermal resistance enable reliable energy diversion during 10ms exponential load dump surges up to 4600W at TC = +25°C.
The device meets AEC-Q200 stress test requirements and complies with ISO 10605 (ESD), ISO 7637-2 (Pulse 1, 2a, 3a, 3b), and ISO 16750-2 (load dump). It exhibits <10µA max reverse leakage at VRWM and maintains stable VBR across -55°C to +175°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 28 V - Maximum continuous reverse operating voltage before clamping begins; sets system overvoltage threshold for 12V/24V automotive rails. |
| VBR @ IT=5mA | 31.1–34.4 V - Breakdown onset range; ensures predictable turn-on margin above VRWM for robust surge margining. |
| VC @ IPP=101A | 45.4 V - Clamped voltage during 10/1000µs surge; limits downstream IC stress to safe levels during load dump events. |
| PPK (10/1000µs) | 4600 W - Peak pulse power handling; supports full ISO16750-2 load dump energy without failure. |
| RθJC | 1.0 °C/W - Junction-to-case thermal resistance; enables efficient heat transfer to PCB copper or heatsink for sustained surge duty. |
| Operating TJ | -55°C to +175°C - Full automotive temperature range; validated for under-hood ECU placement without derating. |
| IFSM (8.3ms) | 600 A - Non-repetitive forward surge rating; withstands high-current transients without bond wire fusing. |
Pinout & Package
Package: DO-218 (Type E), surface-mount, molded plastic housing with UL 94V-0 flammability rating. Anode terminal connects 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 ≥200 mm² copper pour for RθJC ≤1.0°C/W; electrically connected to system ground or battery negative. |
| Cathode (Top Surface Bar) | Transient current input node | Connected to protected line (e.g., battery feed); conducts surge current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 4600W peak pulse power | Enables single-device compliance with ISO16750-2 load dump (12V/24V systems) without parallel stacking. |
| Low clamping voltage (45.4V @ 101A) | Protects 48V-tolerant CAN transceivers and microcontrollers without requiring upstream LDO derating. |
| 1.0°C/W thermal resistance | Allows >3W steady-state dissipation at TC = +100°C, supporting high ambient under-hood deployments. |
| AEC-Q200 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock. |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and JEDEC J-STD-020 moisture sensitivity Level 1 for reflow compatibility. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
|
Use Scenario: Protects 5V/3.3V DC-DC regulators and MCU power inputs from alternator load dump surges during battery disconnection. IC Role / Device Role: Primary clamping element placed between battery feed and input filter capacitor. Use Value: Limits rail voltage to ≤45.4V during 10ms load dump, preventing overvoltage damage to downstream PMICs and microcontrollers. |
Use Scenario: Shields LIN bus transceivers, door lock actuators, and LED drivers from ISO7637-2 Pulse 3b switching noise and load dump. IC Role / Device Role: Unidirectional TVS mounted directly at BCM main power entry point. Use Value: Absorbs 4600W peak energy while maintaining <10µA leakage at 28V, ensuring low quiescent current in sleep mode. |
| Infotainment Head Unit Power Supply | ADAS Camera Module Power Line |
|
Use Scenario: Guards USB-C PD controllers and display power management ICs against cranking-induced transients and jump-start spikes. IC Role / Device Role: Secondary surge clamp after primary fuse and LC filter; placed adjacent to SoC power input. Use Value: Achieves 31.1–34.4V VBR tolerance margin above 28V nominal rail, avoiding false triggering during cold-cranking dips. |
Use Scenario: Safeguards 12V camera power input in rear-view and surround-view systems exposed to vehicle-level surges. IC Role / Device Role: Automotive-qualified TVS with -55°C to +175°C operation mounted on compact FPCB near connector. Use Value: Maintains clamping performance across full automotive temperature range, critical for camera reliability in extreme climates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ28A | Lower PPK (400W), DO-214AC package, RθJC ≈ 55°C/W | Not suitable for ISO16750-2 load dump; limited to ISO7637-2 Pulse 1/2a only | Select when cost-sensitive non-load-dump applications require SMC footprint compatibility. |
| SMCJ28A | PPK = 1500W, DO-214AB package, RθJC ≈ 12°C/W, higher VC (48.4V) | Marginally meets load dump energy but requires larger copper area for thermal management | Choose if existing DO-214AB layout prohibits DO-218 rework and 1500W suffices for de-rated use cases. |
Compared with SMAJ28A and SMCJ28A, DM6W28A-13 delivers 3× higher peak power and 12× lower thermal resistance in a thermally optimized DO-218 package-enabling single-device ISO16750-2 compliance without board redesign or thermal derating.
Availability
DM6W28A-13 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and infotainment head units requiring stable component supply across extended product lifecycles.
Supply support for DM6W28A-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.
DM6W28A-13 belongs to Diodes' automotive-grade TVS portfolio engineered specifically for ISO16750-2 load dump and ISO7637-2 surge immunity in 12V/24V vehicle electrical systems.
FAQ
What is the maximum clamping voltage of DM6W28A-13 under ISO16750-2 load dump conditions?
The DM6W28A-13 clamps to 45.4V at 101A peak pulse current (10/1000µs waveform), which corresponds to the worst-case load dump surge per ISO16750-2. This value is measured at TC = +25°C and remains within ±5% across -40°C to +125°C case temperature range per datasheet Figure 2.
Can DM6W28A-13 replace SMAJ28A in an existing design?
No-DM6W28A-13 uses DO-218 (Type E) packaging with anode-heatsink polarity, while SMAJ28A uses DO-214AC with cathode-band marking and 400W rating. Physical footprint, thermal interface, and surge capability differ fundamentally; direct replacement requires PCB layout and thermal validation.
Does DM6W28A-13 meet AEC-Q200 requirements?
Yes-DM6W28A-13 is qualified to AEC-Q200 Rev H for stress testing including temperature cycling, humidity bias, mechanical shock, and vibration. It is explicitly listed in Diodes' AEC-Q200 qualified products database under part number DM6W28AQ-13 (automotive grade variant).
What is the recommended PCB pad layout for optimal thermal performance?
Per Diodes' package outline DS40427 Rev 6-2, the DO-218 footprint requires a minimum 200 mm² copper pour connected to the anode (heatsink tab) with ≥4 thermal vias (0.3mm diameter, filled) to inner ground planes. The suggested pad dimensions are G = 3.30 mm, X = 3.50 mm, Y = 3.00 mm, and Y2 = 15.80 mm.
DM6W28A-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):
- 28V
- Voltage - Breakdown (Min):
- 31.1V
- Voltage - Clamping (Max) @ Ipp:
- 45.4V
- Current - Peak Pulse (10/1000µs):
- 101A
- Power - Peak Pulse:
- 4600W (4.6kW)
- 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
DM6W28A-13 FAQ
1.How can I place an order for DM6W28A-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM6W28A-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 DM6W28A-13 reliable?
The price and inventory of DM6W28A-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM6W28A-13 is usually 5 days.
3.What payment methods are accepted for DM6W28A-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM6W28A-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM6W28A-13?
DM6W28A-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM6W28A-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 DM6W28A-13?
For technical support, including DM6W28A-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM6W28A-13 requirements.
6.How does Aetrix verify that DM6W28A-13 is sourced from the original manufacturer or authorized distributors?
All DM6W28A-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 DM6W28A-13 meets industry standards.
7.What is the process for return or replacement of DM6W28A-13?
All DM6W28A-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM6W28A-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 DM6W28A-13 part is unused and in its original packaging.
Return procedure for DM6W28A-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM6W28A-13 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
