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Microchip Technology MDA3KP24AE3
- Part No.:
- MDA3KP24AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MDA3KP24AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:5,849
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Product details
Overview
MDA3KP24AE3 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 voltage (V(BR)), and 38.9 V 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), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in power supply input stages.
For engineers reviewing the MDA3KP24AE3 datasheet, MDA3KP24AE3 pinout, MDA3KP24AE3 application, or MDA3KP24AE3 equivalent, key selection criteria include standoff voltage matching system DC rail, clamping margin relative to protected IC absolute maximum ratings, surge current capability under 10/1000 µs waveform, RoHS-compliant e3 termination, and MIL-PRF-19500 upscreening eligibility.
Technical Context
The MDA3KP24AE3 operates as a silicon avalanche diode-based unidirectional TVS, designed for fast-clamping (<100 ps response) of high-energy transients on DC power lines. Its 24 V VWM ensures compatibility with 24 V industrial control rails, while its 38.9 V VC at 77.2 A IPP defines the maximum voltage imposed on downstream circuitry during worst-case surge events.
It complies with IEC61000-4-5 (secondary lightning, 42 Ω source), IEC61000-4-2 (±15 kV air, ±8 kV contact ESD), and IEC61000-4-4 (4 kV EFT), and supports temperature derating per Figure 3 - maintaining ≥80% of 3000 W rating up to +100 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous DC operating voltage before conduction begins; matches standard 24 V industrial power rails. |
| V(BR) min/max | 26.7–29.5 V - Breakdown occurs within this range at 1 mA; ensures reliable turn-on above nominal rail. |
| VC @ IPP | 38.9 V at 77.2 A - Clamped voltage seen by protected load during full 3000 W 10/1000 µs surge. |
| PPP | 3000 W - Peak pulse power handling per 10/1000 µs waveform; defines transient energy absorption capacity. |
| ID @ VWM | 2 µA - Standby leakage current at 24 V; negligible loading on upstream supply or sensing circuits. |
| TJ/TSTG | −55 to +150 °C - Operating and storage temperature range suitable for harsh industrial and transportation environments. |
| RoHS | e3 - Matte-tin termination, lead-free, compliant with EU RoHS Directive 2011/65/EU. |
Pinout & Package
MDA3KP24AE3 uses a 3-pin TO-277A (SMB) surface-mount package with cathode-anode-cathode terminal configuration. Pin 1 (cathode) and Pin 3 (cathode) are electrically common; Pin 2 is the anode. Polarity is marked by a dot adjacent to Pin 1 on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., 24 V rail); forms cathode side of unidirectional avalanche junction. |
| Pin 2 | Anode | Connected to ground reference; completes current path during transient clamping event. |
| Pin 3 | Cathode | Electrically tied to Pin 1; enables dual-cathode layout for symmetric PCB routing and thermal distribution. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against high-energy surges including IEC61000-4-5 Class 4 lightning (42 Ω source) without degradation. |
| Unidirectional construction | Provides DC-biased clamping only - ideal for positive-rail protection where reverse polarity is not expected. |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring lot traceability, 3σ ID screening, and extended environmental testing. |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints - simplifies SMT assembly logistics. |
| RoHS-compliant e3 termination | Matte-tin plating ensures solderability per MIL-STD-750 Method 2026 and eliminates lead-based process concerns. |
Applications
| Industrial PLC Power Inputs | Telecom DC Feeds |
|---|---|
Use Scenario: 24 V DC power entry point in programmable logic controllers exposed to inductive kickback from solenoids and relay coils. IC Role / Device Role / Timing Role: Primary overvoltage clamp limiting transient excursions to ≤38.9 V during 77.2 A surges. Use Value: Prevents damage to upstream DC-DC converters and downstream microcontrollers by absorbing up to 3000 W of surge energy. | Use Scenario: -48 V telecom power feed interface subject to lightning-induced surges per IEC61000-4-5 with 42 Ω source impedance. IC Role / Device Role / Timing Role: Unidirectional TVS placed between -48 V rail and chassis ground to clamp positive-going transients. Use Value: Maintains compliance with Class 4 secondary lightning immunity while supporting >100,000 surge cycles without parameter shift. |
| Automotive Body Control Modules | Renewable Energy Inverter DC Links |
Use Scenario: 24 V battery-supplied body control module inputs subjected to load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Fast-response (sub-100 ps) clamping device suppressing transients before they reach CAN transceivers or MCU I/O. Use Value: Limits clamped voltage to 38.9 V - well below 40 V absolute max rating of most automotive-grade MCUs. | Use Scenario: DC link protection in solar inverters where PV string voltages can exceed 1000 V, but auxiliary 24 V control rails require transient hardening. IC Role / Device Role / Timing Role: Standoff-rated TVS guarding isolated DC-DC bias supplies against coupling from high-dV/dt switching nodes. Use Value: Withstands repeated 10/1000 µs surges up to 3000 W without parametric drift or catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | 600 W PPP rating, same VWM (24 V), higher VC (43.5 V at 13.7 A), SMB package. | Lower surge capacity limits use to Class 2/3 IEC61000-4-5 or lower-energy EFT scenarios. | Select when cost sensitivity outweighs need for Class 4 lightning immunity and 3000 W surge headroom. |
| SMCJ24A | 1500 W PPP rating, same VWM (24 V), VC = 38.9 V at 38.9 A, larger SMC package. | Half the peak pulse current capability of MDA3KP24AE3; insufficient for full Class 4 42 Ω lightning test. | Choose when board space allows SMC footprint and application requires >600 W but <3000 W surge handling. |
Compared with SMAJ24A and SMCJ24A, the MDA3KP24AE3 delivers double the surge current (77.2 A vs. 38.9 A/13.7 A) and full 3000 W rating - enabling single-device compliance with IEC61000-4-5 Class 4 at 42 Ω, whereas alternatives require parallel staging or derated test margins.
Availability
MDA3KP24AE3 is available at Aetrix Electronics and suitable for industrial PLC power inputs, telecom DC feeds, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for MDA3KP24AE3 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, industrial, and communications markets.
The MDA3KP series targets high-energy transient suppression in mission-critical power interfaces, emphasizing MIL-PRF-19500 upscreening readiness, 3000 W surge capability, and robust thermal performance in SMB packages.
FAQ
What is the clamping voltage of MDA3KP24AE3 at its rated peak pulse current?
The MDA3KP24AE3 has a maximum clamping voltage (VC) of 38.9 V at 77.2 A peak pulse current (IPP), measured under 10/1000 µs waveform conditions. This value defines the upper voltage limit imposed on protected circuitry during worst-case surge events and is critical for ensuring downstream components remain within their absolute maximum voltage ratings. The MDA3KP24AE3 maintains this clamping performance across its full operating temperature range.
Is MDA3KP24AE3 suitable for IEC61000-4-5 Class 4 secondary lightning protection?
Yes, the MDA3KP24AE3 is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with a 42 Ω source impedance, as confirmed in the manufacturer's application guidance. Its 3000 W peak pulse power rating and 77.2 A IPP capability meet the 4 kV open-circuit voltage requirement for Class 4 testing. The MDA3KP24AE3 achieves this without derating or parallel staging, making it a single-device solution for high-immunity system designs.
Does MDA3KP24AE3 have RoHS compliance and what does the 'e3' suffix indicate?
The 'e3' suffix in MDA3KP24AE3 denotes RoHS-compliant matte-tin termination per EU Directive 2011/65/EU. This means the device uses lead-free plating that meets solderability requirements per MIL-STD-750 Method 2026 and eliminates hazardous substances. The MDA3KP24AE3 is not a legacy non-RoHS part - the e3 marking is integral to its orderable identity and reflects full compliance verified through material declarations and process controls.
How does the unidirectional configuration of MDA3KP24AE3 affect its circuit placement?
The unidirectional configuration of MDA3KP24AE3 requires correct polarity orientation: cathodes (Pins 1 and 3) connect to the protected line (e.g., +24 V), and the anode (Pin 2) connects to ground. This arrangement clamps only positive-going transients, making it unsuitable for AC or bidirectional signal lines. The MDA3KP24AE3 must not be used in reverse-biased configurations, as it lacks symmetrical breakdown characteristics - doing so risks permanent damage during negative surges.
Can MDA3KP24AE3 be used in high-reliability applications requiring MIL-PRF-19500 screening?
Yes, the MDA3KP24AE3 supports optional MIL-PRF-19500 upscreening, including wafer and assembly lot traceability, 3σ screening on standby current (ID), and conformance inspections per Micronote 129. While the base MDA3KP24AE3 is not automatically screened, its design and process flow are qualified for upscreening - enabling qualification for aerospace, defense, and critical infrastructure programs where long-term reliability and failure mode predictability are mandatory. The MDA3KP24AE3 is built to support this path without redesign.
MDA3KP24AE3 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:
- -
MDA3KP24AE3 FAQ
1.How can I place an order for MDA3KP24AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MDA3KP24AE3 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 MDA3KP24AE3 reliable?
The price and inventory of MDA3KP24AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MDA3KP24AE3 is usually 5 days.
3.What payment methods are accepted for MDA3KP24AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MDA3KP24AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MDA3KP24AE3?
MDA3KP24AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MDA3KP24AE3 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 MDA3KP24AE3?
For technical support, including MDA3KP24AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MDA3KP24AE3 requirements.
6.How does Aetrix verify that MDA3KP24AE3 is sourced from the original manufacturer or authorized distributors?
All MDA3KP24AE3 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 MDA3KP24AE3 meets industry standards.
7.What is the process for return or replacement of MDA3KP24AE3?
All MDA3KP24AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MDA3KP24AE3, 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 MDA3KP24AE3 part is unused and in its original packaging.
Return procedure for MDA3KP24AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MDA3KP24AE3 Tags
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