Microchip Technology MXDA3KP15AE3
- Part No.:
- MXDA3KP15AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP15AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:

- Shipping:

Inventory:4,705
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Product details
Overview
MXDA3KP15AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 15 V standoff voltage (VWM), 16.7–18.5 V breakdown voltage (V(BR)), and 24.4 V clamping voltage (VC) at 123 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in industrial power interfaces.
For engineers reviewing the MXDA3KP15AE3 datasheet, MXDA3KP15AE3 pinout, MXDA3KP15AE3 application, or MXDA3KP15AE3 equivalent, key selection criteria include its 15 V working voltage, 24.4 V clamping performance at 123 A, RoHS-compliant e3 marking, MIL-PRF-19500 upscreening capability, and 100 ps response time - critical for protecting DC power rails and signal lines in harsh electromagnetic environments.
Technical Context
The MXDA3KP15AE3 operates as a unidirectional avalanche diode-based TVS array, designed to clamp transient overvoltages before they damage downstream circuitry. Its 15 V VWM ensures compatibility with 12 V nominal systems, while its 16.7–18.5 V V(BR) range guarantees reliable triggering above normal operating peaks without false conduction.
It delivers 3000 W peak pulse power at 10/1000 μs waveform, with 24.4 V maximum clamping voltage at 123 A IPP and <100 ps response time. The device is rated for -55 °C to +150 °C junction temperature and features void-free UL94V-0 epoxy packaging with tin-lead or matte-tin terminations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage; matches 12 V DC rail with safety margin |
| V(BR) min/max | 16.7–18.5 V @ 1 mA - Ensures consistent avalanche initiation above system transients |
| VC @ IPP | 24.4 V @ 123 A - Limits voltage seen by protected ICs during 10/1000 μs surge |
| PPP | 3000 W @ 10/1000 μs - Handles high-energy surges from lightning or inductive kickback |
| TJ range | -55 to +150 °C - Supports operation in automotive under-hood and industrial control environments |
| Response time | <100 ps - Faster than most microcontrollers' interrupt latency, enabling pre-damage clamping |
| RoHS | e3 marking - Confirms lead-free, compliant termination per JEDEC J-STD-020B Level 1 moisture sensitivity |
Pinout & Package
MXDA3KP15AE3 uses a 3-pin TO-277A (SMB) surface-mount package with cathode-anode-cathode terminal arrangement. Pin 1 (cathode) and Pin 3 (cathode) are connected internally to the anode (Pin 2), forming a single unidirectional TVS path across Pins 1–2 and 2–3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts when voltage exceeds V(BR) relative to Pin 2 |
| Pin 2 | Anode | Common reference node; tied to system ground or low-side return path |
| Pin 3 | Cathode | Redundant cathode terminal; enables dual-line protection or layout symmetry |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Enables robust protection against IEC61000-4-5 Class 4 surges (4 kV, 42 Ω source) without derating |
| 15 V standoff voltage | Aligns with 12 V nominal bus systems while maintaining ≥20% margin over worst-case ripple |
| 24.4 V clamping at 123 A | Keeps downstream 3.3 V/5 V logic ICs within absolute maximum ratings during surge events |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace and defense applications requiring lot traceability and 3σ ID screening |
| UL94V-0 epoxy case | Provides flame-retardant mechanical integrity in enclosed industrial enclosures and power supplies |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24 V DC input stages in variable-frequency drives exposed to inductive switching noise and load dump. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between DC bus and ground to shunt surge energy before it reaches gate drivers or MCU power pins. Use Value: Limits transient voltage to ≤24.4 V during 123 A surges, preventing latch-up or oxide breakdown in 3.3 V control ICs. | Use Scenario: Surge protection on -48 V telecom power distribution boards subject to lightning-induced coupling and hot-swap transients. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb 3000 W pulses without degradation over 10⁵ events. Use Value: Maintains 15 V VWM compatibility with -48 V nominal systems using polarity-reversed mounting, ensuring no false triggering during normal operation. |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: Input protection for 12 V battery-fed BCMs subjected to ISO 7637-2 Pulse 1/2a/5a and ESD events per ISO 10605. IC Role / Device Role / Timing Role: Primary transient suppressor on power entry point, coordinated with upstream fuses and downstream LC filters. Use Value: Achieves <100 ps response to clamp fast-rising ESD (IEC61000-4-2) before CAN transceivers or microcontroller I/O pins experience overstress. | Use Scenario: DC-link protection in solar string inverters where PV arrays induce high-voltage transients during cloud-edge effects or arc faults. IC Role / Device Role / Timing Role: High-energy TVS mounted directly across DC bus capacitors to prevent overvoltage failure of IGBT gate drivers. Use Value: Withstands repeated 3000 W surges at 150 °C junction temperature, supporting long-term reliability in outdoor-rated inverters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | 600 W PPP rating, same VWM and VC but lower IPP (38.9 A); SMB package, non-upscreenable | Limited to Class 2 IEC61000-4-5; unsuitable for Class 4 lightning or motor drive inductive spikes | Select SMAJ15A only for cost-sensitive, low-energy consumer electronics with verified <1 kV surge exposure. |
| SMCJ15A | 1500 W PPP, same VWM/VC, IPP = 68.7 A; identical SMB footprint but lower surge capacity | Meets IEC61000-4-5 Class 3 (42 Ω), not Class 4; insufficient for 4 kV/2 Ω secondary lightning | Choose SMCJ15A where space constraints prohibit larger packages but full 3000 W capability is not required. |
Compared with SMAJ15A and SMCJ15A, MXDA3KP15AE3 delivers double the surge energy handling of SMCJ15A and five times that of SMAJ15A - enabling single-device protection for Class 4 lightning and high-current inductive loads without parallel stacking or thermal derating.
Availability
MXDA3KP15AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply across extended production lifecycles.
Supply support for MXDA3KP15AE3 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
Microsemi Corporation (now part of Microchip Technology) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, communications, and industrial markets.
The MDA3KP series was engineered specifically for high-energy transient suppression in mission-critical power interfaces, emphasizing surge robustness, temperature stability, and MIL-qualified screening readiness.
FAQ
What is the clamping voltage of MXDA3KP15AE3 at its rated peak pulse current?
The MXDA3KP15AE3 has a maximum clamping voltage (VC) of 24.4 V at 123 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is guaranteed across the full operating temperature range and ensures protected downstream components remain within safe voltage limits during surge events. The MXDA3KP15AE3 achieves this clamping performance while maintaining a 15 V standoff voltage, making it suitable for 12 V nominal systems.
Is MXDA3KP15AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXDA3KP15AE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number. Per Microsemi's nomenclature, 'e3' denotes matte-tin plating and full compliance with EU RoHS Directive 2011/65/EU and JEDEC J-STD-020B Level 1 moisture sensitivity. The MXDA3KP15AE3 requires no dry pack and supports standard reflow profiles up to 260 °C for 10 seconds.
Can MXDA3KP15AE3 be used for bidirectional transient protection?
No, MXDA3KP15AE3 is a unidirectional TVS device, indicated by the absence of 'C' in its part number. Bidirectional variants (e.g., MXDA3KP15CE3) are available with symmetrical clamping for AC or dual-polarity DC lines. Using MXDA3KP15AE3 in reverse-biased configuration risks permanent breakdown, as it is not rated for reverse conduction beyond VWM.
What is the maximum operating temperature range for MXDA3KP15AE3?
The MXDA3KP15AE3 is rated for junction and storage temperatures from -55 °C to +150 °C. This wide range supports deployment in under-hood automotive, industrial motor controls, and outdoor renewable energy systems. Derating of peak pulse power begins above 25 °C per Figure 3 in the datasheet, with 50% power capability retained at +125 °C ambient.
Does MXDA3KP15AE3 meet IEC61000-4-5 Class 4 immunity requirements?
Yes, MXDA3KP15AE3 meets IEC61000-4-5 Class 4 (4 kV test level) for secondary lightning surge immunity when tested with 42 Ω source impedance. Its 3000 W peak pulse power rating and 24.4 V clamping voltage ensure protected circuits remain functional after exposure. The MXDA3KP15AE3 is validated for this class per the manufacturer's application data and test reports referenced in RF01243 Rev B.
MXDA3KP15AE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 16-SMD, Gull Wing
- Series:
- MDA
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 8
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 123A
- Power - Peak Pulse:
- 3000W (3kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- -
MXDA3KP15AE3 FAQ
1.How can I place an order for MXDA3KP15AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP15AE3 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 MXDA3KP15AE3 reliable?
The price and inventory of MXDA3KP15AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP15AE3 is usually 5 days.
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Once your MXDA3KP15AE3 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 MXDA3KP15AE3?
For technical support, including MXDA3KP15AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP15AE3 requirements.
6.How does Aetrix verify that MXDA3KP15AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP15AE3 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 MXDA3KP15AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP15AE3?
All MXDA3KP15AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP15AE3, 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 MXDA3KP15AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP15AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP15AE3 Tags

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