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Microchip Technology MXDA3KP24AE3
- Part No.:
- MXDA3KP24AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP24AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,398
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Product details
Overview
MXDA3KP24AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 24 V standoff voltage (VWM), 26.7–29.5 V breakdown range (V(BR)), and 38.9 V maximum clamping voltage (VC) at 77.2 A peak pulse current (IPP). It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4) and ESD/EFT suppression per IEC61000-4-2/4-4 in industrial power supply input stages.
For engineers reviewing the MXDA3KP24AE3 datasheet, MXDA3KP24AE3 pinout, MXDA3KP24AE3 application, or MXDA3KP24AE3 equivalent, key selection criteria include its 24 V working standoff, sub-100 ps response time, RoHS-compliant e3 marking, MIL-PRF-19500 upscreening capability, and 5 g thermoset epoxy package suitable for high-reliability board-level surge protection.
Technical Context
The MXDA3KP24AE3 operates as a unidirectional avalanche diode-based TVS, triggered when reverse voltage exceeds its 26.7–29.5 V breakdown threshold. Its clamping action limits transients to ≤38.9 V at 77.2 A under 10/1000 µs waveform, delivering 3000 W peak pulse power dissipation without degradation.
Designed for surface-mount assembly on PCBs with defined pad layout (Page 7), it features tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026, moisture sensitivity Level 1 (J-STD-020B), and full lot traceability. Polarity is defined by dot-marked Pin 1 (cathode).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous DC or peak AC operating voltage before clamping begins |
| V(BR) min–max | 26.7–29.5 V - Breakdown occurs within this range at 1 mA, ensuring predictable turn-on margin above VWM |
| VC @ IPP | 38.9 V - Clamped voltage seen by protected circuit during 77.2 A transient, defining worst-case overvoltage stress |
| IPP | 77.2 A - Peak current survivable under 10/1000 µs waveform, directly tied to 3000 W rating |
| ID @ VWM | 2 µA - Leakage current at 24 V, low enough to avoid loading sensitive upstream circuits |
| TJ / TSTG | −55 to +150 °C - Operating and storage temperature range compatible with harsh industrial environments |
| Response time | <100 ps - Enables effective suppression of ESD events (IEC61000-4-2) before system damage occurs |
Pinout & Package
MXDA3KP24AE3 uses a 2-pin surface-mount plastic package (void-free UL94V-0 epoxy body) with cathode identified by dot marking on top. Terminals are tin-lead or matte-tin plated for reliable solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., DC input rail); clamps to ground when transient exceeds V(BR) |
| Pin 2 | Anode | Typically connected to system ground; completes conduction path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against high-energy surges including secondary lightning (IEC61000-4-5) without thermal runaway |
| RoHS-compliant e3 marking | Confirms lead-free termination and compliance with EU Directive 2011/65/EU for environmentally regulated designs |
| MIL-PRF-19500 screening option | Supports high-reliability aerospace/defense applications via wafer lot traceability and 3σ standby current screening |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing overhead and handling risk |
| Unidirectional polarity | Optimized for DC-biased lines where reverse conduction must be blocked except during clamping events |
Applications
| Industrial Power Supply Input Protection | Telecom Line Card Surge Suppression |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping overvoltage spikes before they reach downstream DC/DC converters and microcontrollers. Use Value: Limits transient voltage to ≤38.9 V, preserving 24 V rail integrity and preventing latch-up or burnout in 3.3 V/5 V logic supplies. | Use Scenario: Primary protection on -48 V telecom battery feed line subject to lightning-induced surges per IEC61000-4-5 (42 Ω source). IC Role / Device Role / Timing Role: First-line transient suppressor placed before inline filters and DC-DC isolation stages. Use Value: Absorbs up to 3000 W energy while maintaining clamping below −55 V, protecting sensitive line interface ICs rated for −60 V absolute maximum. |
| Automotive Body Control Module (BCM) Input | Medical Equipment AC/DC Front-End |
Use Scenario: 24 V supply input of BCM subjected to ISO 7637-2 Pulse 1/2a/5a transients during vehicle operation. IC Role / Device Role / Timing Role: Fast-response TVS providing sub-100 ps clamping to complement slower MOV-based primary protection. Use Value: Prevents cumulative degradation from repetitive switching transients due to its low leakage (2 µA) and guaranteed 150 °C junction rating. | Use Scenario: Secondary-side 24 V DC output of medical-grade AC/DC adapter requiring IEC 60601-1 creepage/clearance-compliant surge protection. IC Role / Device Role / Timing Role: Final-stage TVS safeguarding isolated patient-connected subsystems from internally generated transients. Use Value: Delivers certified ESD/EFT immunity (IEC61000-4-2/4-4) without compromising safety isolation, thanks to UL94V-0 epoxy encapsulation and traceable lot control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | 600 W rating (vs. 3000 W); 38.9 V VC same; 32.2 A IPP (vs. 77.2 A) | Limited to lower-energy transients; unsuitable for IEC61000-4-5 Class 4 with 42 Ω source | Select MXDA3KP24AE3 when 3000 W surge handling is required; SMBJ24A fits space-constrained, lower-risk applications. |
| SMCJ24A | 1500 W rating; same VWM/VC; 43.4 A IPP; larger SMC package vs. MDA's custom outline | Mid-tier energy handling; requires different PCB footprint and thermal relief design | Choose MXDA3KP24AE3 for highest power density and MIL-PRF-19500 upscreening; SMCJ24A offers broader distributor availability. |
Compared with SMBJ24A and SMCJ24A, MXDA3KP24AE3 delivers 2× and 2× higher peak pulse power respectively, enables Class 4 lightning protection with 42 Ω source impedance, and supports high-reliability screening-making it optimal for mission-critical industrial and defense systems where single-event robustness is non-negotiable.
Availability
MXDA3KP24AE3 is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom line card surge suppression, and automotive body control module (BCM) inputs requiring stable component supply across extended product lifecycles.
Supply support for MXDA3KP24AE3 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) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The MDA3KP series was engineered specifically for high-energy transient suppression in safety-critical infrastructure, combining military-grade screening readiness with commercial surface-mount manufacturability.
FAQ
What is the clamping voltage of MXDA3KP24AE3 and how does it protect downstream circuits?
The MXDA3KP24AE3 has a maximum clamping voltage (VC) of 38.9 V at 77.2 A peak pulse current. This means that during a 10/1000 µs transient, the device limits voltage across protected lines to no more than 38.9 V-well below typical 40–60 V absolute maximum ratings of DC/DC controllers and microcontrollers. By holding the rail within safe bounds, MXDA3KP24AE3 prevents overvoltage stress, latch-up, or permanent damage to sensitive downstream silicon.
Is MXDA3KP24AE3 RoHS-compliant and what does the 'e3' suffix indicate?
Yes, MXDA3KP24AE3 is RoHS-compliant. The 'e3' suffix explicitly denotes matte-tin plating per JEDEC J-STD-609A, confirming lead-free terminations and compliance with EU Directive 2011/65/EU. This makes MXDA3KP24AE3 suitable for environmentally regulated designs without requiring exemption waivers or special handling documentation.
Can MXDA3KP24AE3 be used for bidirectional protection?
No, MXDA3KP24AE3 is unidirectional only. Its part number lacks the 'C' suffix (e.g., MDA3KP24CE3 would be bidirectional). The device conducts only in reverse bias above V(BR) and blocks forward current-making it appropriate for DC lines with fixed polarity. For AC or dual-polarity signal lines, a bidirectional variant must be selected.
What is the standoff voltage (VWM) of MXDA3KP24AE3 and why is it critical for selection?
The MXDA3KP24AE3 has a rated working standoff voltage (VWM) of 24 V, meaning it remains non-conductive up to this DC or peak AC voltage. Selecting VWM ≥ maximum normal operating voltage ensures the TVS does not leak or clamp during steady-state operation. Choosing a lower VWM risks false triggering; selecting too high a VWM compromises clamping margin-so 24 V VWM matches standard 24 V industrial rails precisely.
Does MXDA3KP24AE3 require special PCB layout considerations?
Yes. Per Microsemi's datasheet (Page 7), MXDA3KP24AE3 requires adherence to the specified pad layout to ensure thermal performance and surge current handling. Short, wide traces to ground minimize inductance, and copper pour under the device improves heat dissipation. The package's dot-marked Pin 1 (cathode) must align with schematic polarity to avoid reverse-bias failure during transients.
MXDA3KP24AE3 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):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 77.2A
- 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:
- -
MXDA3KP24AE3 FAQ
1.How can I place an order for MXDA3KP24AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP24AE3 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 MXDA3KP24AE3 reliable?
The price and inventory of MXDA3KP24AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP24AE3 is usually 5 days.
3.What payment methods are accepted for MXDA3KP24AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP24AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP24AE3?
MXDA3KP24AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP24AE3 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 MXDA3KP24AE3?
For technical support, including MXDA3KP24AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP24AE3 requirements.
6.How does Aetrix verify that MXDA3KP24AE3 is sourced from the original manufacturer or authorized distributors?
All MXDA3KP24AE3 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 MXDA3KP24AE3 meets industry standards.
7.What is the process for return or replacement of MXDA3KP24AE3?
All MXDA3KP24AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP24AE3, 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 MXDA3KP24AE3 part is unused and in its original packaging.
Return procedure for MXDA3KP24AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXDA3KP24AE3 Tags
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