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Microchip Technology MXLDA3KP24A
- Part No.:
- MXLDA3KP24A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP24A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,050
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Product details
Overview
MXLDA3KP24A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in power supply 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 MXLDA3KP24A datasheet, MXLDA3KP24A pinout, MXLDA3KP24A application, or MXLDA3KP24A equivalent, this device is selected for IEC61000-4-5 Class 1–4 secondary lightning protection (42 Ω source), IEC61000-4-2 ESD suppression, and inductive switching transient mitigation in industrial power interfaces.
Technical Context
The MXLDA3KP24A is a single-channel, unidirectional TVS diode optimized for fast clamping of high-energy transients with <100 ps response time. Its 3000 W peak pulse power rating (10/1000 µs waveform) and 2 µA standby current at 24 V enable robust overvoltage protection without loading nominal circuits.
It complies with MIL-PRF-19500 screening options for high-reliability applications and uses void-free UL94V-0 epoxy packaging with tin-lead or matte-tin terminations. Polarity is defined by dot marking; odd-numbered pins are cathodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 26.7–29.5 V @ 1 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events |
| VC @ IPP | 38.9 V @ 77.2 A - Clamping voltage limits downstream component stress during 10/1000 µs surge |
| IPP | 77.2 A - Peak impulse current capacity derived from 3000 W rating and clamping voltage |
| ID @ VWM | 2 µA - Ultra-low leakage preserves system efficiency and battery life in always-on circuits |
| TJ/TSTG | –55 to +150 °C - Extended thermal range supports operation in harsh industrial and aerospace environments |
| Package | Surface-mount vertical TO-277A (3-pin) - Enables high-power dissipation with minimal PCB footprint |
Pinout & Package
MXLDA3KP24A is housed in a vertical surface-mount TO-277A package (3-pin, single-channel unidirectional configuration). Pin 1 is cathode, marked by a dot on top of the body; Pin 2 is anode; Pin 3 is cathode common (shared cathode configuration per MDA series layout).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line's return path; defines polarity for unidirectional clamping |
| Pin 2 | Anode | Connected to protected line input; current flows anode-to-cathode during clamping |
| Pin 3 | Cathode Common | Shared cathode terminal enabling compact dual-rail or multi-line configurations |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Enables protection against severe IEC61000-4-5 surges (Class 1–4, 42 Ω source) without derating at 25 °C |
| Clamping response <100 ps | Prevents damage from ESD (IEC61000-4-2) and EFT (IEC61000-4-4) before sensitive ICs react |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification for defense, avionics, and critical infrastructure deployments |
| Moisture sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and risk |
| UL94V-0 void-free epoxy case | Ensures flame resistance and mechanical integrity under thermal cycling and vibration stress |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24 V DC control inputs against inductive kickback from contactors and solenoids. IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive-going transients to ≤38.9 V while blocking normal 24 V operation. Use Value: Prevents microcontroller reset or latch-up caused by >100 V spikes with sub-100 ps reaction. | Use Scenario: Surge suppression on -48 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Cathode-grounded configuration shunts positive transients to ground while isolating negative rail. Use Value: Maintains compliance with GR-1089-CORE Class 3 (12 Ω source) secondary lightning requirements. |
| Railway Signaling Interfaces | Medical Imaging Power Supplies |
Use Scenario: Input protection for 24 V sensor interface modules in EN50121-4-compliant rolling stock. IC Role / Device Role / Timing Role: Standoff voltage matches nominal 24 V rail; clamping engages only during EN61000-4-5 test pulses. Use Value: Achieves 2 kV surge immunity (42 Ω source) without degrading signal integrity or adding capacitance. | Use Scenario: Overvoltage clamp on auxiliary 24 V logic rails in MRI power systems subject to magnetic field coupling. IC Role / Device Role / Timing Role: Low-leakage (2 µA) operation avoids drift in precision analog monitoring circuits. Use Value: Ensures uninterrupted operation during 10/1000 µs surges up to 3000 W without thermal runaway. |
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, DO-214AA package, 38.9 V clamping at 17.3 A | Limited to lower-energy transients; not qualified for MIL-PRF-19500 screening | Select when cost-sensitive designs tolerate reduced surge margin and lack high-reliability requirements |
| SMCJ24A | 1500 W rating, DO-214AB package, 38.9 V clamping at 38.9 A | Half the peak power handling of MXLDA3KP24A; unsuitable for Class 4 IEC61000-4-5 | Choose where board space allows larger SMC package but full 3000 W capability is unnecessary |
Compared with SMBJ24A and SMCJ24A, the MXLDA3KP24A delivers double the surge energy capacity of SMCJ24A and five times that of SMBJ24A-critical for mission-critical 24 V systems requiring validated Class 4 lightning immunity and extended temperature operation.
Availability
MXLDA3KP24A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, railway signaling interfaces, and medical imaging power supplies requiring stable component supply across extended product lifecycles.
Supply support for MXLDA3KP24A 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 and mixed-signal ICs, RF solutions, and radiation-hardened components.
The MDA3KP series was developed for high-energy transient suppression in safety-critical infrastructure, emphasizing MIL-PRF-19500 compliance, wide temperature operation, and repeatable clamping performance under repetitive surge stress.
FAQ
What is the clamping voltage of MXLDA3KP24A at its rated peak pulse current?
The MXLDA3KP24A has a maximum clamping voltage (VC) of 38.9 V at its rated peak pulse current (IPP) of 77.2 A under 10/1000 µs waveform conditions. This value is measured per standard TVS test methodology and ensures downstream circuitry remains below safe operating thresholds during surge events. The MXLDA3KP24A maintains this clamping performance across its full operating temperature range.
Is MXLDA3KP24A RoHS compliant?
Yes, MXLDA3KP24A is RoHS compliant, indicated by the "e3" suffix in its full part marking per Microsemi's nomenclature. The device uses annealed matte-tin plating on terminals and meets lead-free soldering requirements including JEDEC J-STD-020B Level 1 moisture sensitivity. No dry pack is required prior to reflow assembly.
Does MXLDA3KP24A support MIL-PRF-19500 screening?
Yes, MXLDA3KP24A supports optional MIL-PRF-19500 upscreening with wafer and assembly lot traceability, 3σ lot norm screening on standby current (ID), and conformance inspections per Micronote 129. This makes MXLDA3KP24A suitable for defense, aerospace, and other high-reliability applications requiring documented process controls and extended reliability data.
What is the polarity configuration of MXLDA3KP24A?
MXLDA3KP24A is a unidirectional TVS diode with cathode-anode-cathode (K-A-K) pinout in its 3-pin TO-277A package. Pin 1 and Pin 3 are cathodes; Pin 2 is the anode. A dot on the top surface identifies Pin 1. This configuration enables flexible grounding schemes and shared-cathode layouts for multi-rail protection.
Can MXLDA3KP24A be used for bidirectional protection?
No, MXLDA3KP24A is unidirectional only. For bidirectional protection at 24 V standoff, Microsemi offers the MXLDA3KP24CA variant (with 'C' suffix). The MXLDA3KP24A does not conduct symmetrically and must be oriented correctly in-circuit to protect against positive transients only; reverse bias beyond VWM will cause leakage but no clamping.
MXLDA3KP24A 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:
- -
MXLDA3KP24A FAQ
1.How can I place an order for MXLDA3KP24A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP24A 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 MXLDA3KP24A reliable?
The price and inventory of MXLDA3KP24A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP24A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP24A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP24A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP24A?
MXLDA3KP24A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP24A 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 MXLDA3KP24A?
For technical support, including MXLDA3KP24A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP24A requirements.
6.How does Aetrix verify that MXLDA3KP24A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP24A 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 MXLDA3KP24A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP24A?
All MXLDA3KP24A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP24A, 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 MXLDA3KP24A part is unused and in its original packaging.
Return procedure for MXLDA3KP24A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP24A Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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