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Microchip Technology MXLDA3KP11A
- Part No.:
- MXLDA3KP11A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP11A.pdf
- Description:
- UNI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:8,400
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Product details
Overview
MXLDA3KP11A 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 11 V reverse standoff voltage (VWM), 12.2–13.5 V breakdown voltage (V(BR)), 18.2 V maximum clamping voltage at 164.8 A peak pulse current, and operates from –55 °C to +150 °C.
For engineers reviewing the MXLDA3KP11A datasheet, MXLDA3KP11A pinout, MXLDA3KP11A application, or MXLDA3KP11A equivalent, this device is selected for robust overvoltage protection in DC power rails, telecom line cards, and automotive body control modules where fast response (<100 ps), high surge capability, and MIL-PRF-19500 upscreening options are required.
Technical Context
The MXLDA3KP11A is a single-channel unidirectional TVS diode optimized for 10/1000 µs waveform transients per IEC61000-4-5. Its clamping behavior is characterized by a low 18.2 V VC at IPP = 164.8 A, enabling effective protection of downstream 12 V logic and power ICs without excessive voltage overshoot.
It uses thermosetting epoxy packaging with tin-lead or matte-tin plating, supports RoHS compliance (e3 marking), and maintains stable performance across –55 °C to +150 °C junction temperature range. Polarity is defined by odd-numbered pins as cathodes, consistent with its MDA-series package layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 12.2–13.5 V @ 1 mA - Ensures reliable turn-on before protected circuit exceeds safe voltage limits |
| VC @ IPP | 18.2 V @ 164.8 A - Limits voltage seen by downstream components during 3 kW surge events |
| PPP | 3000 W @ 10/1000 µs - Sustains high-energy transients typical of lightning-induced surges |
| ID @ VWM | 5 µA - Negligible leakage current preserves efficiency in low-power standby circuits |
| TJ/TSTG | –55 to +150 °C - Enables deployment in under-hood automotive and industrial outdoor enclosures |
Pinout & Package
MXLDA3KP11A is housed in a void-free transfer-molded thermosetting epoxy package (UL94V-0 rated), with tin-lead or matte-tin terminals solderable per MIL-STD-750 Method 2026. Pin 1 is marked by a dot on top; odd-numbered pins are cathodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected line; conducts surge current to ground when V > V(BR) |
| Pin 2 | Anode | Connected to system ground reference; completes current path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 3000 W peak pulse power rating | Enables protection against Class 3–4 secondary lightning surges per IEC61000-4-5 with 42 Ω source impedance |
| Clamping time <100 ps | Responds faster than most microcontrollers and interface ICs, preventing latch-up or damage from ESD/EFT |
| MIL-PRF-19500 upscreening option | Supports high-reliability programs requiring 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 risk |
Applications
| Industrial Power Supply Protection | Telecom Line Interface |
|---|---|
Use Scenario: 24 V DC input rail in programmable logic controller (PLC) power module exposed to inductive switching noise and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between input and DC-DC converter input. Use Value: Limits transient voltage to ≤18.2 V, preserving integrity of 24 V-rated input stage components during 3 kW surges. | Use Scenario: T1/E1 line card interface receiving induced RF and lightning-coupled transients from outdoor copper pairs. IC Role / Device Role / Timing Role: Unidirectional TVS on tip/ring lines referenced to chassis ground. Use Value: Clamps common-mode surges within 100 ps while maintaining signal integrity for 2.048 Mbps data transmission. |
| Automotive Body Control Module | Renewable Energy Inverter DC Link |
Use Scenario: 12 V battery-supplied BCM subsystem subject to load dump and ISO 7637-2 Pulse 5a transients. IC Role / Device Role / Timing Role: Front-end protection for CAN transceiver and microcontroller power rails. Use Value: Withstands 164.8 A peak current at 18.2 V clamping, preventing brownout or reset during 100 ms load dump events. | Use Scenario: DC link between PV array and MPPT stage in solar inverter, exposed to grid-switching transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor to absorb energy from IGBT commutation spikes. Use Value: Dissipates 3000 W pulses without thermal runaway, extending capacitor lifetime and improving system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | 600 W PPP rating, same VWM and polarity; smaller SMB package, lower IPP (101 A) | Not suitable for Class 4 IEC61000-4-5; limited to lower-energy ESD/EFT and switching transients | Select when board space is constrained and surge threat level is ≤Class 2 |
| SMCJ11A | 1500 W PPP, same VWM; larger SMC package, IPP = 123 A, higher thermal mass but half the energy handling | Cannot meet 3 kW surge requirement of secondary lightning; requires derating above 85 °C | Choose only if legacy SMC footprint must be retained and full 3 kW capability is not mandated |
Compared with SMBJ11A and SMCJ11A, the MXLDA3KP11A delivers double the peak pulse power of SMCJ11A and five times that of SMBJ11A-enabling direct use in Class 4 IEC61000-4-5-compliant designs without parallel devices or external heat sinking.
Availability
MXLDA3KP11A is available at Aetrix Electronics and suitable for industrial power supply protection, telecom line interface design, and automotive body control modules requiring stable component supply and long-term lifecycle support.
Supply support for MXLDA3KP11A 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 mission-critical overvoltage protection in aerospace, defense, and industrial systems where MIL-PRF-19500 screening, wide temperature operation, and repeatable 3000 W surge performance are mandatory.
FAQ
What is the clamping voltage of the MXLDA3KP11A at its rated peak pulse current?
The MXLDA3KP11A exhibits a maximum clamping voltage (VC) of 18.2 V at its rated peak pulse current (IPP) of 164.8 A under 10/1000 µs waveform conditions. This value is measured per Figure 2 in the official RF01243 datasheet and ensures downstream 12 V components remain within safe operating limits during surge events. The MXLDA3KP11A achieves this with sub-100 ps response time.
Is the MXLDA3KP11A RoHS compliant?
Yes, the MXLDA3KP11A is RoHS compliant, indicated by the "e3" suffix in its full marking per Microsemi's nomenclature guide. It uses annealed matte-tin or tin-lead plating and void-free UL94V-0 epoxy packaging. Compliance is verified per J-STD-020B moisture classification Level 1, eliminating dry-pack requirements. The MXLDA3KP11A meets EU RoHS Directive 2011/65/EU.
Can the MXLDA3KP11A be used for bidirectional protection?
No, the MXLDA3KP11A is unidirectional only. Its part number lacks the "C" suffix specified for bidirectional variants (e.g., MDA3KP11CA). The device conducts only when cathode voltage exceeds anode by ≥V(BR); it does not suppress negative-going transients. For bidirectional protection, select MXLDA3KP11CA or verify polarity alignment in the target circuit before using MXLDA3KP11A.
What is the maximum operating temperature range for the MXLDA3KP11A?
The MXLDA3KP11A has a junction and storage temperature range of –55 °C to +150 °C, as confirmed in the Absolute Maximum Ratings table on page 2 of RF01243 Rev B. This enables use in under-hood automotive, outdoor telecom, and industrial motor drive environments. Derating of peak pulse power begins above 25 °C per Figure 3, with 50% capacity retained at +125 °C.
Does the MXLDA3KP11A require special PCB layout considerations?
Yes-the MXLDA3KP11A demands low-inductance layout to preserve its <100 ps response. Keep traces short and wide between pins 1 and 2, minimize loop area to ground, and avoid vias in the surge current path. The pad layout on page 7 of RF01243 specifies exact dimensions. Thermal relief should be minimized on anode (Pin 2) to enhance heat dissipation during repeated surges. The MXLDA3KP11A's 5 g mass also requires adequate solder fillet strength.
MXLDA3KP11A 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):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 164.8A
- 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:
- -
MXLDA3KP11A FAQ
1.How can I place an order for MXLDA3KP11A through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP11A 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 MXLDA3KP11A reliable?
The price and inventory of MXLDA3KP11A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP11A is usually 5 days.
3.What payment methods are accepted for MXLDA3KP11A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP11A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP11A?
MXLDA3KP11A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP11A 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 MXLDA3KP11A?
For technical support, including MXLDA3KP11A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP11A requirements.
6.How does Aetrix verify that MXLDA3KP11A is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP11A 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 MXLDA3KP11A meets industry standards.
7.What is the process for return or replacement of MXLDA3KP11A?
All MXLDA3KP11A units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP11A, 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 MXLDA3KP11A part is unused and in its original packaging.
Return procedure for MXLDA3KP11A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP11A Tags
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