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Microchip Technology MXLDA3KP12CA
- Part No.:
- MXLDA3KP12CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 16-SMD, Gull Wing
- Datasheet:
-
MXLDA3KP12CA.pdf
- Description:
- BI-DIRECTIONAL TVS_16L DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,697
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Product details
Overview
MXLDA3KP12CA from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array designed for high-reliability surge protection in industrial and telecom power rails. It features a 12 V reverse standoff voltage (VWM), 13.3–14.7 V breakdown voltage (V(BR)), 23.2 V maximum clamping voltage (VC) at 150.6 A peak pulse current, and operates across –55 °C to +150 °C junction temperature. It delivers secondary lightning protection per IEC61000-4-5 with 12 Ω source impedance (Class 1–3).
For engineers reviewing the MXLDA3KP12CA datasheet, MXLDA3KP12CA pinout, MXLDA3KP12CA application, or MXLDA3KP12CA equivalent, key selection criteria include clamping performance under 10/1000 µs surges, bidirectional polarity for AC-coupled lines, RoHS-compliant e3 marking, and MIL-PRF-19500 upscreening eligibility for aerospace-grade reliability validation.
Technical Context
The MXLDA3KP12CA implements a monolithic silicon avalanche diode structure optimized for sub-5 ns response time and low clamping ratio (VC/VWM ≈ 1.93). Its bidirectional configuration enables symmetrical transient suppression on differential or AC signal/power paths without polarity constraints.
It is rated for 3000 W peak pulse power at 10/1000 µs waveform, with full surge testing per production lot and 3σ screening on standby current (ID ≤ 5 µA @ VWM). Moisture sensitivity level is IPC/JEDEC J-STD-020B Level 1 - no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 12 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 13.3–14.7 V @ 1 mA - guaranteed avalanche onset range defining turn-on threshold |
| VC @ IPP | 23.2 V @ 150.6 A - clamped voltage during worst-case 10/1000 µs surge, limiting downstream stress |
| IPP | 150.6 A - peak surge current supported at rated clamping voltage, derived from 3000 W / VC |
| ID @ VWM | ≤5 µA - leakage current at standoff voltage, ensuring minimal power loss in standby |
| TJ range | –55 °C to +150 °C - operational junction temperature window supporting harsh-environment deployment |
| Package | DO-214AB (SMC) - surface-mount thermoset epoxy case, UL94V-0 rated, 5 g mass |
Pinout & Package
MXLDA3KP12CA uses a 2-terminal DO-214AB (SMC) package with cathode marked by a dot on the top surface. Pin 1 = cathode; Pin 2 = anode. Polarity is bidirectional - both terminals function symmetrically as cathode/anode depending on transient polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional cathode/anode | Marked with dot; conducts when voltage exceeds V(BR) in either direction |
| Terminal 2 | Bidirectional cathode/anode | Unmarked; completes symmetrical clamping path with Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables single-device protection of AC lines, differential buses, or floating power rails without polarity alignment |
| 3000 W peak pulse rating | Withstands high-energy transients such as IEC61000-4-5 Class 3 lightning surges (12 Ω source) |
| MIL-PRF-19500 upscreening option | Supports high-reliability qualification including lot traceability, burn-in, and parametric screening for aerospace programs |
| Level 1 moisture sensitivity | Eliminates baking requirement prior to reflow, reducing assembly cost and process risk |
| RoHS-compliant e3 marking | Meets EU Directive 2011/65/EU with annealed matte-tin plating and lead-free solder compatibility |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
Use Scenario: Protection of 24 V DC input rails against switching transients from contactor bounce and inductive load kickback. IC Role / Device Role / Timing Role: TVS array clamps voltage spikes to <23.2 V within <5 ns, preventing MOSFET gate oxide failure and controller latch-up. Use Value: Enables use of lower-voltage-rated power semiconductors while maintaining IEC61000-4-4 EFT immunity at ±2 kV. | Use Scenario: Surge suppression on -48 V DC telecom power distribution boards exposed to lightning-induced surges on long-haul copper lines. IC Role / Device Role / Timing Role: Bidirectional clamping limits common-mode transients to safe levels before they reach DC/DC converters and line cards. Use Value: Meets IEC61000-4-5 Class 3 (12 Ω source) requirements with verified 150.6 A impulse handling at 23.2 V clamp. |
| Medical Imaging Power Supplies | Renewable Energy Inverters |
Use Scenario: Input-stage protection for CT/MRI power supplies where EMI filters must pass stringent ESD immunity (IEC61000-4-2 ±15 kV air) without derating. IC Role / Device Role / Timing Role: Fast-response TVS shunts ESD energy away from upstream EMI filter capacitors and bridge rectifiers. Use Value: Sub-5 ns response ensures clamping occurs before filter capacitor overvoltage triggers thermal runaway. | Use Scenario: DC-link protection in solar inverters subjected to grid-switching transients and nearby lightning strikes. IC Role / Device Role / Timing Role: Absorbs 3000 W surges on PV string inputs and battery-side DC links, preserving IGBT gate drivers and sensing circuits. Use Value: 150 °C max junction temperature rating supports operation inside sealed outdoor enclosures without forced cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12CA | 600 W rating, 12 V VWM, 19.9 V VC @ 30.2 A - lower power handling and smaller DO-214AA package | Not suitable for IEC61000-4-5 Class 3; limited to ESD/EFT and low-energy switching transients | Select SMBJ12CA only when board space is constrained and surge energy remains below 100 J. |
| 1.5KE12CA | 1500 W rating, 12 V VWM, 20.1 V VC @ 74.6 A - axial-leaded TO-204AE package, higher thermal resistance | Requires through-hole mounting and larger PCB area; less suitable for automated SMT assembly | Choose 1.5KE12CA only if legacy through-hole design or higher creepage distance is mandatory. |
Compared with SMBJ12CA and 1.5KE12CA, MXLDA3KP12CA provides 2× and 2× higher peak pulse power respectively, enabling robust Class 3 lightning protection in compact SMT form factor - critical for next-gen industrial power modules requiring both high energy absorption and automated manufacturability.
Availability
MXLDA3KP12CA is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, medical imaging power supplies, and renewable energy inverters requiring stable component supply with long-term lifecycle assurance.
Supply support for MXLDA3KP12CA 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.
The MDA3KP series was engineered for mission-critical surge protection in aerospace, defense, and industrial infrastructure - delivering MIL-qualified reliability with commercial-grade cost efficiency.
FAQ
What is the clamping voltage of MXLDA3KP12CA at its rated peak pulse current?
The MXLDA3KP12CA has a maximum clamping voltage (VC) of 23.2 V at its rated peak pulse current (IPP) of 150.6 A under 10/1000 µs waveform conditions. This value is specified in the Electrical Characteristics table on page 3 of the RF01243 Rev B datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is MXLDA3KP12CA unidirectional or bidirectional, and how is polarity identified?
MXLDA3KP12CA is a bidirectional TVS, indicated by the "C" suffix in its nomenclature. Polarity is marked with a dot on the top surface denoting Pin 1 (cathode); however, due to bidirectional symmetry, both terminals conduct equally during positive or negative transients - eliminating orientation constraints during placement.
Does MXLDA3KP12CA meet IEC61000-4-5 Class 3 lightning surge requirements?
Yes, MXLDA3KP12CA is validated for IEC61000-4-5 Class 3 secondary lightning protection when tested with 12 Ω source impedance, as explicitly stated in the Applications/Benefits section of the RF01243 datasheet. Its 3000 W rating and 150.6 A IPP ensure compliance under the 1 kV/2 kV test levels defined for this class.
What is the moisture sensitivity level (MSL) and reflow profile compatibility of MXLDA3KP12CA?
MXLDA3KP12CA is rated MSL Level 1 per IPC/JEDEC J-STD-020B, meaning it may be stored indefinitely at ambient conditions and requires no pre-bake before reflow soldering. Its thermoset epoxy body withstands peak reflow temperatures up to 260 °C for 10 seconds, fully compatible with standard lead-free profiles.
Can MXLDA3KP12CA be used in aerospace applications requiring MIL-PRF-19500 screening?
Yes, optional MIL-PRF-19500 upscreening is available for MXLDA3KP12CA, including wafer lot traceability, 3σ parametric screening on ID, and conformance inspections per Micronote 129. This makes MXLDA3KP12CA suitable for flight-critical subsystems where radiation tolerance and long-term parametric stability are mandated.
MXLDA3KP12CA 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):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 150.6A
- 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:
- -
MXLDA3KP12CA FAQ
1.How can I place an order for MXLDA3KP12CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLDA3KP12CA 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 MXLDA3KP12CA reliable?
The price and inventory of MXLDA3KP12CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLDA3KP12CA is usually 5 days.
3.What payment methods are accepted for MXLDA3KP12CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLDA3KP12CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLDA3KP12CA?
MXLDA3KP12CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLDA3KP12CA 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 MXLDA3KP12CA?
For technical support, including MXLDA3KP12CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLDA3KP12CA requirements.
6.How does Aetrix verify that MXLDA3KP12CA is sourced from the original manufacturer or authorized distributors?
All MXLDA3KP12CA 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 MXLDA3KP12CA meets industry standards.
7.What is the process for return or replacement of MXLDA3KP12CA?
All MXLDA3KP12CA units undergo pre-shipment inspection (PSI). If there is an issue with MXLDA3KP12CA, 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 MXLDA3KP12CA part is unused and in its original packaging.
Return procedure for MXLDA3KP12CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLDA3KP12CA Tags
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