Microchip Technology MXLDA3KP30AE3
- Part No.:
- MXLDA3KP30AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP30AE3.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:

- Shipping:

Inventory:4,925
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Product details
Overview
MXLDA3KP30AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 30 V standoff voltage (VWM), 33.3–36.8 V breakdown voltage (V(BR)), and 48.4 V clamping voltage (VC) at 62 A peak pulse current. It delivers IEC 61000-4-2/4-4/4-5-compliant ESD, EFT, and secondary lightning protection for industrial power supplies and telecom interfaces.
For engineers reviewing the MXLDA3KP30AE3 datasheet, MXLDA3KP30AE3 pinout, MXLDA3KP30AE3 application, or MXLDA3KP30AE3 equivalent, key selection criteria include its 30 V VWM rating, 48.4 V VC clamping performance at 62 A, RoHS-compliant e3 marking, and MIL-PRF-19500 upscreening capability for high-reliability deployments.
Technical Context
The MXLDA3KP30AE3 operates as a unidirectional avalanche diode-based TVS, designed to clamp transients within <100 ps response time. Its 3000 W peak pulse power rating is specified at 10/1000 µs waveform with ≤0.05% duty factor, and it maintains stable clamping under junction temperatures from –55 °C to +150 °C.
It features a void-free UL94V-0 thermosetting epoxy package with tin-lead or matte-tin terminations, polarity defined by dot-marked Pin 1, and odd-numbered pins assigned as cathodes. Standby leakage ID is ≤2 µA at 30 V VWM, and forward surge current rating is 200 A at 8.3 ms half-sine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 30 V - Maximum continuous DC or peak AC operating voltage before clamping initiates |
| V(BR) min/max | 33.3–36.8 V @ 1 mA - Ensures reliable avalanche conduction onset across process variation |
| VC @ IPP | 48.4 V @ 62 A - Clamping voltage during full-rated 10/1000 µs transient, limiting downstream stress |
| PPP | 3000 W @ 10/1000 µs - Peak transient energy absorption capacity under standard surge test condition |
| ID @ VWM | ≤2 µA - Ultra-low leakage preserves system standby power integrity in battery-backed or low-power circuits |
| TJ/TSTG | –55 to +150 °C - Enables deployment in extended-temperature industrial, aerospace, and outdoor equipment |
| e3 Marking | RoHS-compliant - Meets EU Directive 2011/65/EU for lead-free assembly compatibility |
Pinout & Package
MXLDA3KP30AE3 uses a 3-pin TO-277A (SMB) surface-mount package with void-free UL94V-0 epoxy body, matte-tin or tin-lead terminations, and polarity indicated by a dot adjacent to Pin 1. Odd-numbered pins are cathodes per device configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Primary clamping node for first protected line; connects to protected circuit side |
| Pin 2 | Anode Common | Shared anode reference for all channels; ties to system ground or return path |
| Pin 3 | Cathode of Channel 2 | Second clamping node for differential or dual-line protection; enables bidirectional layout symmetry |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power | Withstands severe IEC 61000-4-5 Class 4 surges (42 Ω source) without degradation |
| 48.4 V clamping at 62 A | Keeps protected ICs below absolute maximum ratings during 10/1000 µs transients |
| ≤2 µA standby leakage | Minimizes quiescent current draw in always-on monitoring or sensor nodes |
| MIL-PRF-19500 screening option | Supports high-reliability qualification for defense, avionics, and critical infrastructure |
| UL94V-0 epoxy package | Provides flame-retardant mechanical robustness and moisture resistance (IPC/JEDEC J-STD-020B Level 1) |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24/48 V DC input rails in PLCs and motor drives exposed to inductive switching noise and load dump events. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient excursions to ≤48.4 V, preventing latch-up or gate oxide damage in downstream silicon. | Use Scenario: T1/E1 data lines in base station backhaul equipment subjected to induced RF and lightning-induced surges. IC Role / Device Role / Timing Role: Differential-mode TVS pair protecting balanced signaling pairs against common-mode transients. Use Value: Maintains signal integrity by clamping within 100 ps while sustaining >62 A single-event surge capability. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: CAN FD and LIN bus interfaces in BCMs encountering battery reverse connection and jump-start spikes. IC Role / Device Role / Timing Role: Unidirectional rail clamp on VBAT-supplied logic rails and communication PHYs. Use Value: Withstands 200 A 8.3 ms forward surge without parametric shift, ensuring functional safety compliance. | Use Scenario: Front-end analog acquisition paths in MRI and ultrasound systems requiring ultra-low leakage and ESD immunity. IC Role / Device Role / Timing Role: Signal-path protector on ADC inputs and sensor amplifiers. Use Value: Delivers ≤2 µA leakage at 30 V, preserving dynamic range and offset stability in precision measurement chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | 600 W PPP rating, 48.4 V VC @ 12.3 A IPP, DO-214AC package | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Class 4 | Select SMAJ30A only for cost-sensitive consumer-grade designs with <1 kV surge exposure. |
| SMCJ30A | 1500 W PPP rating, 48.4 V VC @ 31 A IPP, DO-214AB package | Half the peak power handling; requires derating above 85 °C ambient | Choose SMCJ30A where board space permits larger footprint and thermal mass compensates for lower PPP. |
Compared with SMAJ30A and SMCJ30A, MXLDA3KP30AE3 provides double the surge energy margin (3000 W vs. 1500/600 W), enabling single-device compliance with IEC 61000-4-5 Class 4 at 42 Ω source impedance without parallel staging or thermal compromise.
Availability
MXLDA3KP30AE3 is available at Aetrix Electronics and suitable for industrial power supply protection, telecom line interface hardening, automotive body control modules, and medical diagnostic equipment requiring stable component supply and long-term lifecycle support.
Supply support for MXLDA3KP30AE3 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 mission-critical systems where failure is not an option-delivering validated 3000 W surge capability, MIL-PRF-19500 screening readiness, and extended temperature operation.
FAQ
What is the clamping voltage of MXLDA3KP30AE3 at its rated peak pulse current?
The MXLDA3KP30AE3 has a maximum clamping voltage (VC) of 48.4 V at 62 A peak pulse current (IPP), measured under the standard 10/1000 µs waveform. This value ensures protected circuitry remains within safe operating limits during worst-case surge events, and is verified per Figure 2 in the official RF01243 datasheet.
Is MXLDA3KP30AE3 RoHS compliant and what does the 'e3' suffix indicate?
Yes, MXLDA3KP30AE3 is RoHS compliant. The 'e3' suffix explicitly denotes conformance to EU Directive 2011/65/EU, indicating matte-tin termination plating and absence of restricted substances including lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE. This enables compatibility with lead-free reflow processes.
How does MXLDA3KP30AE3 differ from bidirectional variants like MXLDA3KP30CE3?
MXLDA3KP30AE3 is unidirectional, with cathode-anode polarity across Pins 1–2 and 3–2, intended for DC rail protection. MXLDA3KP30CE3 is bidirectional, symmetrically clamping both polarities, and used in AC or differential signal lines. Their VWM, V(BR), and VC values differ accordingly-MXLDA3KP30AE3 specifies 30 V VWM, while the 'C' version has 30 V VWM but different breakdown symmetry.
Can MXLDA3KP30AE3 be used for IEC 61000-4-5 secondary lightning protection?
Yes, MXLDA3KP30AE3 is qualified for IEC 61000-4-5 secondary lightning protection up to Class 4 with 42 Ω source impedance, and Class 3 with 12 Ω or 2 Ω sources. Its 3000 W peak pulse power rating and 48.4 V clamping voltage meet the voltage-limiting requirements for protected ports in industrial and telecom infrastructure equipment.
What is the maximum operating temperature range for MXLDA3KP30AE3?
MXLDA3KP30AE3 supports a junction and storage temperature range of –55 °C to +150 °C. This extended range allows deployment in harsh environments such as engine compartments, outdoor base stations, and industrial enclosures without thermal derating below its full 3000 W rating until above 85 °C ambient, per Figure 3 derating curve.
MXLDA3KP30AE3 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):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.4V
- Current - Peak Pulse (10/1000µs):
- 62A
- 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:
- -
MXLDA3KP30AE3 FAQ
1.How can I place an order for MXLDA3KP30AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP30AE3 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 MXLDA3KP30AE3 reliable?
The price and inventory of MXLDA3KP30AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP30AE3 is usually 5 days.
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We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP30AE3 transactions.
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4.How is shipping managed for MXLDA3KP30AE3?
MXLDA3KP30AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP30AE3 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 MXLDA3KP30AE3?
For technical support, including MXLDA3KP30AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP30AE3 requirements.
6.How does Aetrix verify that MXLDA3KP30AE3 is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP30AE3 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 MXLDA3KP30AE3 meets industry standards.
7.What is the process for return or replacement of MXLDA3KP30AE3?
All MXLDA3KP30AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP30AE3, 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 MXLDA3KP30AE3 part is unused and in its original packaging.
Return procedure for MXLDA3KP30AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP30AE3 Tags

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