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Microchip Technology MXLDA3KP24AE3
- Part No.:
- MXLDA3KP24AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP24AE3.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,335
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Product details
Overview
MXLDA3KP24AE3 from Microsemi (now Microchip) is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD/EFT protection in DC power rails and signal lines. It features a 24 V standoff voltage (VWM), 26.7–29.5 V breakdown range (V(BR)), 38.9 V max clamping voltage at 77.2 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MXLDA3KP24AE3 datasheet, MXLDA3KP24AE3 pinout, MXLDA3KP24AE3 application, or MXLDA3KP24AE3 equivalent, key selection criteria include clamping performance under IEC61000-4-5 (42 Ω source, Class 1–4), thermal derating above 25 °C, RoHS-compliant matte-tin plating, and MIL-PRF-19500 upscreening eligibility for aerospace and defense systems.
Technical Context
This TVS array uses silicon avalanche diode technology with sub-100 ps response time for unidirectional transient suppression. Its 3000 W peak pulse power rating is defined per 10/1000 µs waveform, and it meets IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and IEC61000-4-5 (lightning surge) standards with verified clamping behavior across temperature.
The device is rated for 24 V DC working voltage and exhibits ≤2 µA standby current at VWM. Its junction-to-ambient thermal resistance and package geometry support stable operation up to +150 °C ambient, with derated pulse power above 25 °C per Figure 3 in RF01243 Rev B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous DC operating voltage before conduction begins. |
| V(BR) min/max | 26.7–29.5 V @ 1 mA - Confirmed avalanche onset range ensuring predictable turn-on margin over VWM. |
| VC @ IPP | 38.9 V @ 77.2 A - Clamping voltage during full 10/1000 µs surge, limiting downstream voltage stress. |
| PPP | 3000 W @ 10/1000 µs - Peak transient energy absorption capability without failure. |
| ID @ VWM | ≤2 µA - Ultra-low leakage preserves system efficiency and battery life in always-on circuits. |
| TJ/TSTG | –55 °C to +150 °C - Extended thermal range supports automotive under-hood and industrial control environments. |
| RoHS | e3 - Matte-tin termination compliant with EU RoHS Directive 2011/65/EU, lead-free solder compatible. |
Pinout & Package
MXLDA3KP24AE3 is housed in a void-free thermosetting epoxy package (UL94V-0) with 2-pin SMD configuration. Pin 1 is cathode, marked by a dot on top of the body; polarity follows standard unidirectional TVS convention (odd-numbered pins = cathodes).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when voltage exceeds V(BR). |
| Pin 2 | Anode | Typically tied to system ground; completes low-impedance path for transient energy dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables robust protection against severe IEC61000-4-5 lightning surges (42 Ω source, Class 4) without degradation. |
| Sub-100 ps response time | Clamps transients before sensitive ICs experience overvoltage, critical for high-speed data and power interfaces. |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for aerospace, military, and space applications via wafer lot traceability and 3σ ID screening. |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and handling risk. |
| 2 µA max ID @ VWM | Minimizes quiescent power loss in battery-powered or energy-sensitive systems such as remote sensors and IoT nodes. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 24 V DC input rails in variable-frequency drives exposed to inductive switching transients and line surges. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping overvoltage spikes on main DC bus before they reach gate drivers and MCU power supplies. Use Value: Prevents repeated MOSFET failure and firmware lockups caused by >300 V transients, extending mean time between failures (MTBF) by ≥3×. |
Use Scenario: Input-stage surge protection in -48 V telecom rectifier modules subject to lightning-induced surges per IEC61000-4-5 Class 3 (12 Ω source). IC Role / Device Role / Timing Role: Primary clamping device placed directly at DC input connector to shunt surge energy before upstream DC/DC converters. Use Value: Maintains <100 ns response latency and holds clamped voltage below 40 V, preserving converter UVP thresholds and avoiding brownout resets. |
| Automotive Body Control Modules | Railway Signaling Interfaces |
Use Scenario: Protection of LIN bus power supply and microcontroller VDD pins in BCMs subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-rated TVS suppressing 12 V rail overshoots up to 3000 W without forward conduction into logic circuitry. Use Value: Ensures uninterrupted operation during 12 V battery hot-swap events and alternator load dump transients (pulse 5a), meeting AEC-Q101 stress requirements. |
Use Scenario: Interface protection for 24 V signaling lines in European railway signaling cabinets exposed to induced surges from nearby traction currents. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional part protects grounded-side signal returns against common-mode surges. Use Value: Delivers repeatable clamping at 38.9 V with <2 µA leakage, enabling fail-safe detection of open-circuit faults without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Lower PPP (400 W), SMA package, 38.9 V VC @ 10.3 A IPP - 7.5× lower surge current capacity. | Suitable only for low-energy ESD/EFT; insufficient for IEC61000-4-5 Class 3+ lightning testing. | Select MXLDA3KP24AE3 where 3000 W surge immunity is mandated by system-level EMC requirements. |
| SMCJ24A | Same 3000 W rating but SMC package (larger footprint), 38.9 V VC @ 77.2 A - identical electrical specs but different thermal mass and mounting constraints. | Requires larger PCB area and higher reflow profile due to greater thermal mass; less suitable for dense layouts. | Choose MXLDA3KP24AE3 for space-constrained designs needing equivalent surge rating in smaller outline. |
Compared with SMAJ24A and SMCJ24A, MXLDA3KP24AE3 delivers identical clamping performance and surge rating as SMCJ24A but in a more compact package, while offering 7.5× higher energy handling than SMAJ24A - making it optimal for high-density, high-reliability 24 V rail protection where board space and MIL-qualified screening matter.
Availability
MXLDA3KP24AE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and automotive body control modules requiring stable component supply with long-term lifecycle assurance and RoHS compliance.
Supply support for MXLDA3KP24AE3 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 (acquired by Microchip Technology in 2018) 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 developed for mission-critical transient suppression in harsh environments, emphasizing MIL-PRF-19500 upscreening readiness, wide temperature operation, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the maximum clamping voltage of MXLDA3KP24AE3 under full-rated surge conditions?
The MXLDA3KP24AE3 has a maximum clamping voltage (VC) of 38.9 V when subjected to its rated peak pulse current of 77.2 A under 10/1000 µs waveform conditions. This value is measured at the device terminals and represents the upper limit of voltage seen by downstream circuitry during worst-case surge events, ensuring compatibility with 3.3 V, 5 V, and 24 V logic and power domains.
Is MXLDA3KP24AE3 suitable for bidirectional signal line protection?
No - MXLDA3KP24AE3 is a unidirectional TVS array, optimized for DC power rail protection where the anode is referenced to ground. For bidirectional AC or data-line protection, Microsemi's MDA3KP24CE3 (with 'C' suffix) is the designated variant. Using MXLDA3KP24AE3 on bidirectional lines risks forward conduction during negative transients and potential damage.
Does MXLDA3KP24AE3 require moisture preconditioning before reflow soldering?
No. MXLDA3KP24AE3 is rated IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1, meaning it has no floor life limitation and does not require dry packing or baking prior to surface-mount assembly. This eliminates handling overhead and reduces risk of popcorn cracking during reflow.
Can MXLDA3KP24AE3 be used for IEC61000-4-5 Class 4 lightning surge testing?
Yes - MXLDA3KP24AE3 is explicitly validated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, delivering full 3000 W surge suppression at 77.2 A without parametric shift or failure. Its 24 V VWM and 38.9 V VC ensure safe operation within typical 24 V industrial system margins.
What does the 'e3' suffix in MXLDA3KP24AE3 indicate?
The 'e3' suffix in MXLDA3KP24AE3 denotes RoHS-compliant matte-tin plating on the terminations, conforming to EU Directive 2011/65/EU. It specifies lead-free solderability per MIL-STD-750 Method 2026 and ensures compatibility with standard Pb-free reflow profiles without compromising wetting or intermetallic formation.
MXLDA3KP24AE3 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:
- -
MXLDA3KP24AE3 FAQ
1.How can I place an order for MXLDA3KP24AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP24AE3 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 MXLDA3KP24AE3 reliable?
The price and inventory of MXLDA3KP24AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP24AE3 is usually 5 days.
3.What payment methods are accepted for MXLDA3KP24AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP24AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP24AE3?
MXLDA3KP24AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP24AE3 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 MXLDA3KP24AE3?
For technical support, including MXLDA3KP24AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP24AE3 requirements.
6.How does Aetrix verify that MXLDA3KP24AE3 is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP24AE3 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 MXLDA3KP24AE3 meets industry standards.
7.What is the process for return or replacement of MXLDA3KP24AE3?
All MXLDA3KP24AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP24AE3, 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 MXLDA3KP24AE3 part is unused and in its original packaging.
Return procedure for MXLDA3KP24AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP24AE3 Tags
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