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Microchip Technology MXLDA3KP16A
- Part No.:
- MXLDA3KP16A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP16A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:9,548
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Product details
Overview
MXLDA3KP16A from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array designed for high-reliability secondary lightning and ESD protection in industrial power interfaces. It features a 16 V standoff voltage (VWM), 17.8–19.7 V breakdown range (V(BR)), 26.0 V clamping voltage at 115.4 A peak pulse current, and operates from –55 °C to +150 °C. Used in telecom power supplies and motor drive I/O protection.
For engineers reviewing the MXLDA3KP16A datasheet, MXLDA3KP16A pinout, MXLDA3KP16A application, or MXLDA3KP16A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, standoff voltage margin relative to system DC bus, thermal derating above 25 °C, and MIL-PRF-19500 upscreening eligibility.
Technical Context
The MXLDA3KP16A is a single-channel unidirectional TVS diode optimized for fast clamping of high-energy transients in DC power rails. Its <100 ps response time enables effective suppression of ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5 with 2–42 Ω source impedance).
It delivers 3000 W peak pulse power at 10/1000 µs waveform, with 2 µA maximum standby current at 16 V and full surge testing per production lot. The device uses void-free UL94V-0 epoxy packaging and tin-lead or matte-tin terminations compliant with MIL-STD-750 Method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous DC operating voltage before conduction begins; sets minimum system rail margin. |
| V(BR) min/max | 17.8–19.7 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC @ IPP | 26.0 V @ 115.4 A - Clamped voltage during worst-case 10/1000 µs surge; defines protected circuit's maximum stress level. |
| PPP | 3000 W @ 10/1000 µs - Peak transient energy handling capacity; supports Class 1–4 IEC61000-4-5 compliance with appropriate source impedance. |
| ID @ VWM | ≤2 µA - Leakage current at rated standoff; negligible power loss and minimal impact on high-impedance sensing nodes. |
| TJ/TSTG | –55 to +150 °C - Extended thermal range enables use in under-hood automotive, industrial drives, and outdoor telecom enclosures. |
Pinout & Package
MXLDA3KP16A is housed in a surface-mount, void-free thermosetting epoxy package (UL94V-0) with two terminals. Pin 1 is cathode, marked by a dot on top of the body; polarity follows standard unidirectional TVS convention (cathode anode orientation). Package dimensions: 21.03 × 6.86 × 8.64 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line (e.g., +12 V rail); conducts surge current to ground when voltage exceeds V(BR). |
| Pin 2 | Anode | Connected to system ground reference; completes low-inductance path for transient current return. |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse rating | Enables robust protection against IEC61000-4-5 Class 4 surges (42 Ω source) without cascaded staging. |
| 100 ps response time | Clamps ESD events before downstream ICs experience damaging voltage overshoot. |
| MIL-PRF-19500 upscreening option | Supports high-reliability aerospace and defense applications requiring lot traceability and extended screening. |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and bake-out prior to reflow, reducing assembly cost and risk. |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of 24 V DC control inputs against switching transients from contactor coil de-energization. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input terminal and chassis ground to clamp inductive kickback. Use Value: Limits transient voltage to ≤26.0 V, preventing latch-up or gate oxide damage in PLC input buffers. | Use Scenario: Input-stage surge protection on AC/DC rectified 48 V bus feeding PoE injectors. IC Role / Device Role / Timing Role: Primary-level TVS absorbing 3000 W surges before downstream DC-DC converters. Use Value: Maintains system uptime during lightning-induced surges per IEC61000-4-5 Class 3 (12 Ω source). |
| Automotive Body Control Modules | Renewable Energy Inverters |
Use Scenario: Protection of LIN bus power pins exposed to load-dump and jump-start conditions. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail to suppress >100 V transients within microseconds. Use Value: Withstands 115.4 A peak current while holding clamped voltage below 26.0 V, preserving MCU reset integrity. | Use Scenario: DC-link overvoltage suppression in solar string inverters subjected to grid-switching transients. IC Role / Device Role / Timing Role: High-power TVS across PV+ and PV− terminals to divert surge energy away from IGBT gate drivers. Use Value: 3000 W rating allows single-device protection without parallel stacking, simplifying layout and thermal management. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A | 600 W PPP rating; 28.5 V VC @ 21.2 A; DO-214AC package (smaller footprint, lower thermal mass) | Lower energy handling limits use to sub-1 kV surges or requires parallel devices for IEC61000-4-5 Class 3+ | Select SMAJ16A only when board space is constrained and surge threat level is limited to ESD/EFT or low-energy switching noise. |
| SMCJ16A | 1500 W PPP rating; 25.0 V VC @ 60.7 A; DO-214AB package (intermediate power, larger than SMAJ but smaller than MDA) | Insufficient for Class 4 IEC61000-4-5 (42 Ω) without derating; suitable for Class 1–2 with margin | Choose SMCJ16A where cost is critical and system-level testing confirms 1500 W meets required immunity level. |
Compared with SMAJ16A and SMCJ16A, the MXLDA3KP16A provides double the surge energy capacity of SMCJ16A and five times that of SMAJ16A-enabling single-device compliance with stringent Class 4 lightning standards without layout redesign or paralleling.
Availability
MXLDA3KP16A is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, and renewable energy inverters requiring stable component supply and long-term obsolescence management.
Supply support for MXLDA3KP16A 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 developed to deliver military-grade transient suppression in commercial surface-mount form, targeting applications where MIL-PRF-19500 screening, wide temperature operation, and 3000 W surge capability are mandatory.
FAQ
What is the clamping voltage of the MXLDA3KP16A at its rated peak pulse current?
The MXLDA3KP16A has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPP) of 115.4 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the RF01243 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MXLDA3KP16A maintains this clamping performance across its full operating temperature range.
Is the MXLDA3KP16A RoHS compliant?
Yes, the MXLDA3KP16A is RoHS compliant, indicated by the "e3" suffix in its full part marking per Microsemi's nomenclature guide. The device uses annealed matte-tin or tin-lead plating on terminations and void-free UL94V-0 epoxy packaging, meeting JEDEC J-STD-020B Level 1 moisture sensitivity requirements without dry packing. The MXLDA3KP16A conforms to Directive 2011/65/EU.
Can the MXLDA3KP16A be used for bidirectional transient protection?
No, the MXLDA3KP16A is a unidirectional TVS device, as confirmed by its part number suffix "A" (not "C") and polarity specification stating "odd number pins are cathodes." For bidirectional protection, Microsemi offers the MXLDA3KP16CA variant. Using MXLDA3KP16A in AC-coupled or bipolar signal paths would result in forward conduction during negative half-cycles, potentially damaging the device or circuit.
What is the standoff voltage rating of the MXLDA3KP16A, and how should it be applied in circuit design?
The MXLDA3KP16A has a rated working standoff voltage (VWM) of 16 V, meaning it remains non-conductive up to this DC or peak AC voltage across its terminals. Designers must ensure the maximum continuous operating voltage of the protected line is ≤16 V, with ≥10% margin recommended to accommodate tolerance and ripple. Exceeding VWM risks excessive standby current and thermal runaway. The MXLDA3KP16A is not intended for use on 24 V or 48 V rails without series impedance or voltage scaling.
Does the MXLDA3KP16A require special PCB layout considerations?
Yes-the MXLDA3KP16A must be placed with minimal trace length between its anode and ground plane to preserve low-inductance surge current path. The datasheet specifies a pad layout on Page 7; deviations increase clamping voltage due to parasitic inductance. Thermal relief on ground pads should be minimized, and copper pour under the device is recommended for heat dissipation during repetitive surges. The MXLDA3KP16A's 5 g mass also requires adequate solder fillet and pad adhesion to withstand mechanical shock.
MXLDA3KP16A 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 115.4A
- 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:
- -
MXLDA3KP16A FAQ
1.How can I place an order for MXLDA3KP16A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP16A 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 MXLDA3KP16A reliable?
The price and inventory of MXLDA3KP16A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP16A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP16A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP16A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP16A?
MXLDA3KP16A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP16A 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 MXLDA3KP16A?
For technical support, including MXLDA3KP16A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP16A requirements.
6.How does Aetrix verify that MXLDA3KP16A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP16A 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 MXLDA3KP16A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP16A?
All MXLDA3KP16A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP16A, 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 MXLDA3KP16A part is unused and in its original packaging.
Return procedure for MXLDA3KP16A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP16A Tags
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