My Inquiry
My Account
Diodes Incorporated DM5W22AQ-13
- Part No.:
- DM5W22AQ-13
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-218AB
- Datasheet:
-
DM5W22AQ-13.pdf
- Description:
- TVS DIODE 22VWM 35.5VC DO218
- Quantity:
- Payment:
- Shipping:
Inventory:463
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DM5W22AQ-13 from Diodes Incorporated is a 3600W surface-mount transient voltage suppressor (TVS) diode in DO-218 (Type E) package, designed for automotive load dump and ISO7637-2 surge protection. It features 22V reverse standoff voltage (VRWM), 24.4–26.9V breakdown voltage (VBR), 35.5V clamping voltage (VC) at 101A peak pulse current, and AEC-Q101 qualification for under-hood power rail protection.
For engineers reviewing the DM5W22AQ-13 datasheet, DM5W22AQ-13 pinout, DM5W22AQ-13 application, or DM5W22AQ-13 equivalent, key selection criteria include clamping performance under 10/1000µs surge, thermal resistance (RθJC = 1.1°C/W), ISO16750-2 Pulse A/B compliance, and heatsink-anode polarity configuration in high-power automotive transients.
Technical Context
This TVS diode operates as a unidirectional, anode-heatsink-connected surge clamp for 12V/24V automotive systems. Its 3600W peak pulse power rating applies to non-repetitive 10/1000µs waveforms, with derating above +25°C case temperature per Figure 1. The device sustains 500A IFSM (8.3ms half-sine) and maintains <10µA IR at VRWM up to +175°C junction temperature.
Designed for direct mounting to metal chassis or heatsinks, its low RθJC (1.1°C/W) enables efficient thermal dissipation during load dump events. Polarity is fixed: heatsink serves as anode, cathode is the isolated terminal - critical for PCB layout and thermal interface design in engine control units and body electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 22 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 24.4 / 26.9 V @ 5 mA - Confirmed breakdown range ensures reliable turn-on margin above VRWM |
| VC @ IPP | 35.5 V @ 101 A (10/1000µs) - Clamping voltage defines maximum stress on downstream ICs during surge |
| PPK | 3600 W - Peak pulse power handling capability for single-event load dump transients |
| RθJC | 1.1 °C/W - Enables effective heat transfer from junction to heatsink in constrained under-hood space |
| TJ Range | −55 to +175 °C - Supports operation in extreme automotive ambient and self-heating conditions |
| IFSM | 500 A @ 8.3 ms - Withstands high-current surges without bond wire failure or metallization lift |
Pinout & Package
Package: DO-218 (Type E), surface-mount, molded plastic (UL 94V-0), heatsink-anode construction. Weight: 2.74 g. Moisture sensitivity level: J-STD-020 Level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Heatsink base | Anode (+) | Primary current path and thermal conduction surface - must be soldered to copper pour or heatsink |
| Isolated lead | Cathode (−) | Signal-side connection point - routed away from heatsink plane to avoid shorting |
Key Features
| Feature | Design Value |
|---|---|
| 3600W peak pulse power | Enables single-device protection against ISO16750-2 Load Dump (Pulse 5a) without parallel stacking |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Low RθJC (1.1°C/W) | Reduces junction-to-case temperature rise by >40% vs. comparable DO-214AB packages under same power |
| Heatsink-as-anode topology | Eliminates need for insulated mounting hardware while maximizing thermal contact area |
| RoHS 3 & Halogen-free | Complies with EU Directive 2015/863/EU and automotive green material requirements |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) Battery Rail |
|---|---|
Use Scenario: Protects microcontroller power supply against alternator load dump spikes during battery disconnection. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed upstream of DC/DC converter input. Use Value: Limits transient voltage to ≤35.5V, preventing overvoltage damage to 36V-rated buck controllers and LDOs. | Use Scenario: Shields LIN bus transceivers and CAN PHY power rails from ISO7637-2 Pulse 1 (inductive switch-off) and Pulse 2a (battery jump-start). IC Role / Device Role / Timing Role: Primary surge suppression element on 12V main distribution node. Use Value: Absorbs 3600W peak energy within 1ms, maintaining system uptime without latch-up or degradation. |
| Advanced Driver Assistance Systems (ADAS) Camera Module | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Guards image sensor and SerDes power inputs against cranking transients and ESD-coupled surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on 5V/3.3V camera power domain. Use Value: Delivers <10µA leakage at 22V, minimizing standby current impact on always-on vision systems. | Use Scenario: Safeguards gate drivers and current sense amplifiers from motor back-EMF and battery reversal events. IC Role / Device Role / Timing Role: High-energy clamp on H-bridge high-side supply rail. Use Value: Sustains 500A surge current without parametric shift, preserving motor control integrity during fault recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Lower PPK (600W), DO-214AA package, RθJC ≈ 3.5°C/W | Not suitable for ISO16750-2 Load Dump; limited to ISO7637-2 Pulse 1/2 only | Select when cost sensitivity outweighs surge severity requirements and thermal constraints allow higher junction rise |
| SMCJ22A | PPK = 1500W, DO-214AB package, RθJC ≈ 2.0°C/W, no AEC-Q101 certification | Lacks PPAP capability and IATF 16949 manufacturing traceability required for Tier 1 automotive programs | Acceptable for industrial or commercial automotive-adjacent designs where full AEC qualification is not mandated |
Compared with SMBJ22A and SMCJ22A, DM5W22AQ-13 delivers 2.4× and 2.4× higher peak power handling respectively, with certified automotive qualification, lower thermal resistance, and heatsink-integrated anode - making it the only option capable of standalone load dump compliance in space-constrained ECUs.
Availability
DM5W22AQ-13 is available at Aetrix Electronics and suitable for engine control units, body control modules, ADAS camera systems, and electric power steering systems requiring stable component supply across multi-year automotive production cycles.
Supply support for DM5W22AQ-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, serving automotive, industrial, computing, and consumer markets with a focus on high-reliability, high-efficiency components.
The DM5WxxAQ series belongs to Diodes' AEC-Q101-qualified automotive TVS portfolio, engineered specifically for robustness against ISO16750-2 load dump and ISO7637-2 transient events in harsh under-hood environments.
FAQ
What is the correct PCB layout for DM5W22AQ-13 to ensure optimal thermal performance?
The heatsink base (anode) must be soldered to a minimum 200 mm² copper pour with ≥4 thermal vias (0.3mm diameter, filled) connecting to inner ground planes. Cathode pad should be isolated from heatsink plane. Recommended pad dimensions match Diodes' DO-218 Type E layout: G=3.30mm, X=3.50mm, Y=3.00mm, Y2=15.80mm.
Does DM5W22AQ-13 meet ISO16750-2 Pulse 5a (Load Dump) without external series impedance?
Yes - DM5W22AQ-13 is rated for 3600W peak pulse power at 10/1000µs and has been validated per ISO16750-2 Pulse 5a test conditions (including 35V/100ms exponential waveform). No series resistor is required for compliance when mounted per recommended thermal layout.
How does the heatsink-as-anode configuration affect circuit grounding strategy?
The heatsink serves as the anode terminal, so it must be connected to the protected circuit's positive rail - not chassis ground. This requires insulating the mounting surface from vehicle chassis unless the system uses positive-ground architecture. Cathode connects to the protected node or ground return path.
What is the maximum allowable case temperature for continuous 5W operation?
Per Figure 1, PM(AV) = 5.0W is rated at TC = +25°C. Derating begins linearly above +25°C: at TC = +125°C, maximum steady-state power drops to ~2.2W. For sustained 5W operation, active cooling or forced convection is required to maintain TC ≤ +25°C.
DM5W22AQ-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):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 101A
- Power - Peak Pulse:
- 3600W (3.6kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-218
DM5W22AQ-13 FAQ
1.How can I place an order for DM5W22AQ-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for DM5W22AQ-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 DM5W22AQ-13 reliable?
The price and inventory of DM5W22AQ-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DM5W22AQ-13 is usually 5 days.
3.What payment methods are accepted for DM5W22AQ-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DM5W22AQ-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DM5W22AQ-13?
DM5W22AQ-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DM5W22AQ-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 DM5W22AQ-13?
For technical support, including DM5W22AQ-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DM5W22AQ-13 requirements.
6.How does Aetrix verify that DM5W22AQ-13 is sourced from the original manufacturer or authorized distributors?
All DM5W22AQ-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 DM5W22AQ-13 meets industry standards.
7.What is the process for return or replacement of DM5W22AQ-13?
All DM5W22AQ-13 units undergo pre-shipment inspection (PSI). If there is an issue with DM5W22AQ-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 DM5W22AQ-13 part is unused and in its original packaging.
Return procedure for DM5W22AQ-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DM5W22AQ-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…
