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Microchip Technology MXLDA3KP20CA
- Part No.:
- MXLDA3KP20CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP20CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:6,540
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Product details
Overview
MXLDA3KP20CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for high-reliability secondary lightning protection per IEC61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), ESD suppression per IEC61000-4-2, and EFT protection per IEC61000-4-4. It features a 20 V standoff voltage (VWM), 22.2–24.5 V breakdown range (V(BR)), and clamps to ≤32.4 V at 92.6 A peak pulse current (IPP).
For engineers reviewing the MXLDA3KP20CA datasheet, MXLDA3KP20CA pinout, MXLDA3KP20CA application, or MXLDA3KP20CA equivalent, this device serves as a high-energy, low-clamping bidirectional TVS for industrial power supplies, telecom line cards, and automotive body control modules where fast response (<5 ns), RoHS-compliant packaging, and MIL-PRF-19500 upscreening capability are required.
Technical Context
The MXLDA3KP20CA implements a symmetrical dual-diode (bidirectional) avalanche structure optimized for transient energy absorption under 10/1000 µs waveform conditions. Its <5 ns response time enables effective suppression of ESD (IEC61000-4-2), EFT (IEC61000-4-4), and secondary lightning surges (IEC61000-4-5) across multiple source impedance classes.
It operates over –55 °C to +150 °C junction temperature, with moisture sensitivity level 1 (no dry pack required), and supports optional high-reliability screening per MIL-PRF-19500. The device is rated for 3000 W peak pulse power and exhibits ≤2 µA standby current at 20 V standoff.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20 V - Maximum continuous DC or peak AC operating voltage before clamping initiates |
| V(BR) min/max | 22.2–24.5 V @ 1 mA - Confirmed avalanche onset range; ensures reliable turn-on above system operating voltage |
| VC @ IPP | ≤32.4 V @ 92.6 A - Clamping voltage during 10/1000 µs surge; defines maximum stress on protected ICs |
| PPP | 3000 W @ 10/1000 µs - Peak surge power handling capacity; validated per Figure 1 derating curve |
| ID @ VWM | ≤2 µA - Ultra-low leakage at rated standoff; minimizes quiescent power loss in always-on circuits |
| TJ/TSTG | –55 °C to +150 °C - Extended thermal range supports under-hood automotive and industrial ambient environments |
| Response time | <5 ns - Enables sub-nanosecond reaction to ESD events; critical for protecting high-speed interfaces |
Pinout & Package
MXLDA3KP20CA uses a DO-214AB (SMC) surface-mount package: void-free UL94V-0 epoxy body, matte-tin-plated terminals, ~5 g weight, polarity marked by dot indicating Pin 1 (cathode for unidirectional; symmetrical anode/cathode pair for bidirectional). Pin 1 and Pin 2 are electrically symmetrical terminals of the bidirectional TVS structure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode/Cathode (symmetrical) | One terminal of bidirectional avalanche junction; connects to line being protected (e.g., RS-485 A/B) |
| Pin 2 | Anode/Cathode (symmetrical) | Second terminal of bidirectional avalanche junction; completes differential or common-mode clamp path |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables symmetric clamping on AC lines or differential buses without polarity constraints (e.g., USB D+/D–, RS-485) |
| 3000 W peak pulse rating | Supports robust Class 4 secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance |
| MIL-PRF-19500 upscreening option | Enables qualification for aerospace, defense, and high-integrity industrial systems requiring lot traceability and 3σ ID screening |
| Moisture Level 1 | Eliminates bake-out requirement prior to reflow; reduces manufacturing cost and avoids thermal stress on PCB assemblies |
| RoHS-compliant (e3 marking) | Meets global environmental compliance mandates without compromising surge performance or thermal reliability |
Applications
| Industrial Power Supply Protection | Telecom Line Card Surge Protection |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across input rails to clamp positive/negative polarity surges before they reach DC-DC converter ICs. Use Value: Limits transient voltage to ≤32.4 V, preventing damage to 36 V-rated input MOSFETs and enabling compliance with IEC61000-4-4 EFT Level 4. | Use Scenario: Protection of T1/E1 interface transformer center taps against lightning-induced common-mode surges on telecom central office line cards. IC Role / Device Role / Timing Role: Bidirectional TVS connected between transformer center tap and ground to shunt surge energy away from PHY transceivers. Use Value: Delivers 3000 W surge handling with <5 ns response, meeting IEC61000-4-5 Class 3 (12 Ω) requirements without adding series impedance. |
| Automotive Body Control Module | Industrial Ethernet PHY Protection |
Use Scenario: CAN FD bus lines in body control unit subjected to ISO 7637-3 coupled pulses and ESD events during service access. IC Role / Device Role / Timing Role: Bidirectional TVS placed across CAN_H/CAN_L differential pair to suppress both differential and common-mode transients. Use Value: Clamps to ≤32.4 V while maintaining signal integrity due to low capacitance and symmetrical response, supporting 5 Mbps CAN FD operation. | Use Scenario: 100BASE-TX magnetics interface on factory automation controller exposed to ESD and fast transients during field cable insertion. IC Role / Device Role / Timing Role: Bidirectional TVS applied across transformer secondary windings to protect PHY's differential inputs from EOS. Use Value: Provides <5 ns response and ≤2 µA leakage, ensuring no impact on link training or jitter budget while passing IEC61000-4-2 ±8 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | 600 W PPP rating; same DO-214AA package; 20 V VWM; VC = 32.4 V @ 18.9 A IPP | Limited to Class 2 lightning (IEC61000-4-5, 42 Ω); insufficient for Class 3/4 or high-energy inductive switching | Select when board space is constrained and surge energy is ≤600 W; verify IPP derating for 10/1000 µs waveforms. |
| SMCJ20CA | 1500 W PPP rating; DO-214AB package; 20 V VWM; VC = 32.4 V @ 46.2 A IPP | Meets Class 3 (42 Ω) but not Class 4; lower energy margin than MXLDA3KP20CA in high-duty-cycle environments | Choose for cost-sensitive industrial designs where 1500 W peak surge coverage suffices and MIL screening is not required. |
Compared with SMBJ20CA and SMCJ20CA, MXLDA3KP20CA delivers double the peak pulse power (3000 W) and supports full Class 4 secondary lightning protection per IEC61000-4-5 - making it the only option among the three qualified for high-reliability aerospace and defense subsystems with MIL-PRF-19500 upscreening.
Availability
MXLDA3KP20CA is available at Aetrix Electronics and suitable for industrial power supplies, telecom line cards, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for high-reliability deployments.
Supply support for MXLDA3KP20CA 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 - emphasizing surge robustness, thermal stability, and process-controlled reliability through MIL-PRF-19500 screening pathways.
FAQ
What is the clamping voltage of MXLDA3KP20CA at its rated peak pulse current?
The MXLDA3KP20CA has a maximum clamping voltage (VC) of 32.4 V when subjected to its rated peak pulse current (IPP) of 92.6 A under 10/1000 µs waveform conditions. This value is measured across the device terminals during standardized surge testing and defines the upper voltage limit imposed on protected circuitry during transient events. The MXLDA3KP20CA maintains this clamping performance across its full operating temperature range (–55 °C to +150 °C), as verified in the manufacturer's electrical characteristics table.
Is MXLDA3KP20CA RoHS-compliant and what does the 'e3' marking indicate?
Yes, MXLDA3KP20CA is RoHS-compliant, as confirmed by the 'e3' suffix in its marking per Microsemi's nomenclature guide. The 'e3' designation specifies matte-tin plating per J-STD-609, fully compliant with EU RoHS Directive 2011/65/EU and exempt from lead content restrictions. This applies to all standard production lots of MXLDA3KP20CA, and the device carries no exemptions requiring declaration. The MXLDA3KP20CA meets IPC/JEDEC J-STD-020B Level 1 moisture sensitivity without dry pack.
Can MXLDA3KP20CA be used for IEC61000-4-5 Class 4 secondary lightning protection?
Yes, MXLDA3KP20CA is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 42 Ω source impedance, as documented in the Applications/Benefits section of the RF01243 datasheet. It achieves this using its 3000 W peak pulse power rating and ≤32.4 V clamping voltage at 92.6 A. For 12 Ω and 2 Ω source impedances, MXLDA3KP20CA supports Class 1–3 and Class 2–3 respectively - confirming its suitability for high-energy surge environments where MXLDA3KP20CA is deployed in telecom infrastructure and industrial control cabinets.
What is the standoff voltage (VWM) and why is it critical for selecting MXLDA3KP20CA?
The MXLDA3KP20CA has a rated working standoff voltage (VWM) of 20 V, meaning it remains non-conductive up to this DC or peak AC voltage across its terminals. This parameter is critical because VWM must exceed the maximum normal operating voltage of the protected line - for example, selecting MXLDA3KP20CA for a 24 V DC rail requires verifying that ripple and tolerance stay below 20 V, or choosing a higher-VWM variant like MXLDA3KP24CA instead. The MXLDA3KP20CA's 20 V VWM ensures compatibility with 18–20 V nominal systems such as certain CAN FD or PoE-powered interfaces.
Does MXLDA3KP20CA require special handling or baking before reflow soldering?
No, MXLDA3KP20CA does not require baking or dry pack storage prior to reflow soldering. It is rated Moisture Sensitivity Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions (≤30 °C / 60% RH) without moisture-related popcorning risk. The MXLDA3KP20CA's void-free UL94V-0 epoxy body and annealed matte-tin terminations support standard Pb-free reflow profiles up to 260 °C peak solder temperature for 10 seconds, as specified in the Mechanical and Packaging section of its datasheet.
MXLDA3KP20CA 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:
- -
- Bidirectional Channels:
- 8
- Voltage - Reverse Standoff (Typ):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 92.6A
- 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:
- -
MXLDA3KP20CA FAQ
1.How can I place an order for MXLDA3KP20CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP20CA 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 MXLDA3KP20CA reliable?
The price and inventory of MXLDA3KP20CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP20CA is usually 5 days.
3.What payment methods are accepted for MXLDA3KP20CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP20CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP20CA?
MXLDA3KP20CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP20CA 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 MXLDA3KP20CA?
For technical support, including MXLDA3KP20CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP20CA requirements.
6.How does Aetrix verify that MXLDA3KP20CA is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP20CA 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 MXLDA3KP20CA meets industry standards.
7.What is the process for return or replacement of MXLDA3KP20CA?
All MXLDA3KP20CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP20CA, 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 MXLDA3KP20CA part is unused and in its original packaging.
Return procedure for MXLDA3KP20CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP20CA Tags
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