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Microchip Technology MXDA3KP40A
- Part No.:
- MXDA3KP40A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXDA3KP40A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,504
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Product details
Overview
MXDA3KP40A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 40 V standoff voltage (VWM), 44.4–49.1 V breakdown voltage (V(BR)), and 64.5 V clamping voltage (VC) at 46.4 A peak pulse current. It delivers lightning surge protection per IEC61000-4-5 (Class 1–4, 42 Ω source) and ESD/EFT suppression per IEC61000-4-2/4-4 in telecom power interfaces.
For engineers reviewing the MXDA3KP40A datasheet, MXDA3KP40A pinout, MXDA3KP40A application, or MXDA3KP40A equivalent, key selection criteria include its 40 V VWM rating, 64.5 V VC at 46.4 A IPP, -55 to +150 °C operating range, RoHS-compliant void-free epoxy package, and verified secondary lightning compliance with 42 Ω source impedance.
Technical Context
The MXDA3KP40A operates as a unidirectional avalanche diode-based TVS, triggered when reverse voltage exceeds 44.4 V (min V(BR)) and clamping transients to ≤64.5 V within <100 ps. Its 3000 W peak pulse power rating is specified at 10/1000 µs waveform with ≤0.05% duty cycle.
It features 2 µA maximum standby current at 40 V VWM, 100% surge-tested units, and moisture sensitivity level 1 (no dry pack required). Polarity follows standard convention: odd-numbered pins are cathodes, consistent with its 3-pin SMD package layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - Maximum continuous reverse operating voltage before clamping begins |
| V(BR) min/max | 44.4–49.1 V - Breakdown initiates within this range at 1 mA test current |
| VC @ IPP | 64.5 V at 46.4 A - Clamped voltage during worst-case 10/1000 µs surge |
| PPP | 3000 W - Peak transient energy handling capability under standardized impulse |
| ID @ VWM | ≤2 µA - Leakage current at rated standoff ensures minimal power loss in standby |
| TJ/TSTG | -55 to +150 °C - Full industrial/military temperature support without derating up to 125 °C |
| Response time | <100 ps - Near-instantaneous turn-on enables ESD and fast-edge transient suppression |
Pinout & Package
MXDA3KP40A uses a 3-pin surface-mount package with void-free UL94V-0 epoxy body, tin-lead or matte-tin plating, and polarity defined by dot marking for Pin 1. Odd-numbered pins (1 and 3) are cathodes; Pin 2 is the common anode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Channel 1 | Connected to protected line 1; conducts surge current to common anode (Pin 2) when VREV > V(BR) |
| Pin 2 | Common Anode | Reference node tied to system ground or low-impedance return path for both channels |
| Pin 3 | Cathode of Channel 2 | Connected to protected line 2; symmetric clamping behavior to Pin 1 under overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional architecture | Enables DC-biased line protection without forward conduction during normal operation |
| 3000 W peak pulse rating | Supports IEC61000-4-5 Class 4 surges (4 kV, 42 Ω source) without failure |
| RoHS-compliant e3 marking | Meets global environmental compliance with annealed matte-tin termination finish |
| Full lot surge testing | 100% production screening ensures reliability in high-surge industrial deployments |
| Level 1 moisture sensitivity | Eliminates baking requirement prior to reflow, reducing assembly cost and risk |
Applications
| Telecom Power Feeds | Industrial PLC I/O Ports |
|---|---|
Use Scenario: Protection of -48 V DC power inputs in central office equipment against lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping reverse transients on dual feed lines while maintaining DC integrity. Use Value: Withstands 4 kV IEC61000-4-5 (42 Ω) surges and limits clamped voltage to 64.5 V, preserving downstream DC-DC converters. | Use Scenario: Guarding 24 V digital input modules in programmable logic controllers against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Dual-channel transient suppressor shunting energy from two isolated field inputs to common ground reference. Use Value: 46.4 A peak pulse current capacity handles repetitive 10/1000 µs transients without degradation across extended service life. |
| Medical Imaging Power Rails | Renewable Energy Inverter Control Boards |
Use Scenario: Safeguarding low-noise analog supply rails in MRI and CT scanner subsystems from EFT bursts during equipment switching. IC Role / Device Role / Timing Role: Low-leakage (≤2 µA) TVS preventing signal corruption during quiescent operation while responding in <100 ps to fast transients. Use Value: Sub-µA standby current avoids loading precision references; clamping action preserves ADC accuracy during EFT events per IEC61000-4-4. | Use Scenario: Protecting gate driver ICs and microcontrollers on solar inverter control boards from grid-side surge coupling. IC Role / Device Role / Timing Role: Bidirectional-capable layout (though unidirectional here) allows flexible routing; common-anode configuration simplifies PCB grounding. Use Value: -55 to +150 °C junction range supports operation inside sealed, thermally constrained enclosures near power stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40A | 600 W PPP rating, SMA package, 64.5 V VC @ 9.3 A IPP | Limited to lower-energy surges; not validated for IEC61000-4-5 Class 4 (42 Ω) | Select when board space is constrained and surge threat level is ≤Class 2. |
| SMCJ40A | 1500 W PPP rating, SMC package, 64.5 V VC @ 23.3 A IPP | Half the peak power handling of MXDA3KP40A; requires higher layout margin for same surge immunity | Choose where cost sensitivity outweighs need for full 3000 W headroom in critical infrastructure. |
Compared with SMAJ40A and SMCJ40A, MXDA3KP40A provides double the pulse power margin and verified Class 4 lightning compliance-critical for telecom and utility-grade equipment where single-event robustness directly impacts field reliability and warranty exposure.
Availability
MXDA3KP40A is available at Aetrix Electronics and suitable for telecom power feeds, industrial PLC I/O ports, medical imaging power rails, and renewable energy inverter control boards requiring stable component supply and long-term obsolescence management.
Supply support for MXDA3KP40A 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 discrete protection devices for aerospace, defense, and industrial markets.
The MDA3KP series was engineered for mission-critical surge protection in environments demanding MIL-PRF-19500 screening, including telecom infrastructure, power generation controls, and medical diagnostic systems.
FAQ
What is the clamping voltage of MXDA3KP40A at its rated peak pulse current?
The MXDA3KP40A has a maximum clamping voltage (VC) of 64.5 V at 46.4 A peak pulse current (IPP), measured under the standard 10/1000 µs waveform. This value ensures downstream circuitry remains below safe voltage thresholds during surge events, and is confirmed in the Electrical Characteristics table on page 3 of the RF01243 Rev B datasheet.
Is MXDA3KP40A unidirectional or bidirectional, and how is polarity marked?
MXDA3KP40A is a unidirectional TVS array. Polarity is defined by a dot marking on the top of the package indicating Pin 1, with odd-numbered pins (1 and 3) serving as cathodes and Pin 2 as the common anode. This configuration is explicitly stated in the "MECHANICAL and PACKAGING" section on page 2 of the RF01243 Rev B datasheet.
Does MXDA3KP40A meet IEC61000-4-5 Class 4 lightning surge requirements?
Yes, MXDA3KP40A is validated for IEC61000-4-5 Class 4 secondary lightning protection with a 42 Ω source impedance, as documented in the "APPLICATIONS / BENEFITS" section on page 1 of RF01243 Rev B. Its 3000 W peak pulse power rating and 64.5 V clamping performance enable reliable 4 kV surge suppression in telecom and utility applications.
What is the maximum standby leakage current for MXDA3KP40A at its rated standoff voltage?
The maximum standby current (ID) for MXDA3KP40A is 2 µA at its rated 40 V standoff voltage (VWM), per the Electrical Characteristics table on page 3 of RF01243 Rev B. This ultra-low leakage minimizes power loss in always-on systems such as remote sensors and telecom line cards.
What package type and dimensions does MXDA3KP40A use?
MXDA3KP40A uses a proprietary 3-pin surface-mount package with void-free UL94V-0 epoxy body. Key dimensions include 21.03–22.05 mm length (A), 6.86–7.87 mm width (B), and 8.64–9.65 mm height (C), as specified in the Package Dimensions table on page 6 of RF01243 Rev B. The package is RoHS-compliant (e3 marking) and moisture sensitivity Level 1.
MXDA3KP40A 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 46.4A
- 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:
- -
MXDA3KP40A FAQ
1.How can I place an order for MXDA3KP40A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXDA3KP40A 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 MXDA3KP40A reliable?
The price and inventory of MXDA3KP40A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXDA3KP40A is usually 5 days.
3.What payment methods are accepted for MXDA3KP40A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXDA3KP40A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXDA3KP40A?
MXDA3KP40A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXDA3KP40A 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 MXDA3KP40A?
For technical support, including MXDA3KP40A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXDA3KP40A requirements.
6.How does Aetrix verify that MXDA3KP40A is sourced from the original manufacturer or authorized distributors?
All MXDA3KP40A 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 MXDA3KP40A meets industry standards.
7.What is the process for return or replacement of MXDA3KP40A?
All MXDA3KP40A units undergo pre-shipment inspection (PSI). If there is an issue with MXDA3KP40A, 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 MXDA3KP40A part is unused and in its original packaging.
Return procedure for MXDA3KP40A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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